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BEGIN:VEVENT
UID:pretalx-flowpath-2025-9QJQTY@talks.osgeo.org
DTSTART;TZID=CET:20250609T090000
DTEND;TZID=CET:20250609T170000
DESCRIPTION:<b>The workshop has been cancelled.</b>\n\nThe course aims to p
 rovide the necessary knowledge for the implementation\, through MODFLOW-US
 G\, of a 3D numerical model of flow and heat transport for closed-loop (ve
 rtical Borehole Heat Exchangers\, BHE) and open-loop (extraction and reinj
 ection wells) geothermal heat pump systems. During the course the particip
 ants will learn how to implement the models and through them assess:\n•	
 The hydraulic perturbation induced by the extraction and reinjection wells
  (for open-loop system case).\n•	The thermal perturbation induced by the
  low-temperature geothermal system (for closed- and open-loop system cases
 ).\n•	The possible interference and thermal short-circuiting between BHE
 s or wells of the same shallow geothermal system or different systems.\n
 •	The energy performance variation of the shallow geothermal system base
 d on the layout of BHE or wells in a defined geothermal field.\nThe course
  will include an initial introduction about current Italian legislation an
 d the basic concepts of numerical modeling of flow and heat transport\, wi
 th detailed focus on the parameters useful for the heat transfer evaluatio
 n in porous media. Then\, using the Groundwater Vistas version 9 interface
  (with temporary license provided by ESI) t\, through some exercises the n
 ecessary steps to create a numerical model of flow and heat transport in M
 ODFLOW-USG will be shown. Several scenarios will be developed to evaluate 
 the variations of the heat transfer into the subsoil because of the presen
 ce of BHEs and/or geothermal wells. Participants must have backgrounds on 
 flow modelling and should have basic backgrounds on contaminants transport
  modelling.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Flow and Heat Transport Modeling with MODFLOW-USG - part 1 - Sara B
 arbieri\, Luca Alberti\, Matteo Antelmi
URL:https://talks.osgeo.org/flowpath-2025/talk/9QJQTY/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-QAGDX8@talks.osgeo.org
DTSTART;TZID=CET:20250610T090000
DTEND;TZID=CET:20250610T170000
DESCRIPTION:<b>The workshop has been cancelled.</b>\n\nThe course aims to p
 rovide the necessary knowledge for the implementation\, through MODFLOW-US
 G\, of a 3D numerical model of flow and heat transport for closed-loop (ve
 rtical Borehole Heat Exchangers\, BHE) and open-loop (extraction and reinj
 ection wells) geothermal heat pump systems. During the course the particip
 ants will learn how to implement the models and through them assess:\n•	
 The hydraulic perturbation induced by the extraction and reinjection wells
  (for open-loop system case).\n•	The thermal perturbation induced by the
  low-temperature geothermal system (for closed- and open-loop system cases
 ).\n•	The possible interference and thermal short-circuiting between BHE
 s or wells of the same shallow geothermal system or different systems.\n
 •	The energy performance variation of the shallow geothermal system base
 d on the layout of BHE or wells in a defined geothermal field.\nThe course
  will include an initial introduction about current Italian legislation an
 d the basic concepts of numerical modeling of flow and heat transport\, wi
 th detailed focus on the parameters useful for the heat transfer evaluatio
 n in porous media. Then\, using the Groundwater Vistas version 9 interface
  (with temporary license provided by ESI) t\, through some exercises the n
 ecessary steps to create a numerical model of flow and heat transport in M
 ODFLOW-USG will be shown. Several scenarios will be developed to evaluate 
 the variations of the heat transfer into the subsoil because of the presen
 ce of BHEs and/or geothermal wells. Participants must have backgrounds on 
 flow modelling and should have basic backgrounds on contaminants transport
  modelling.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Flow and Heat Transport Modeling with MODFLOW-USG - part 2 - Sara B
 arbieri\, Luca Alberti\, Matteo Antelmi
URL:https://talks.osgeo.org/flowpath-2025/talk/QAGDX8/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-TCHSZW@talks.osgeo.org
DTSTART;TZID=CET:20250610T093000
DTEND;TZID=CET:20250610T123000
DESCRIPTION:Overview\n\nThis workshop offers an introduction to managing ge
 ospatial data using the PostGIS extension of the PostgreSQL database. Topi
 cs include data import from QGIS\, workspace environment analysis\, key Po
 stGIS functions\, query operations (selection and grouping)\, and geometry
  transformation and manipulation.\n\nThe workshop emphasizes hands-on acti
 vities\, and participants are required to bring their own laptops.\nLangua
 ge\n\nThe workshop will be conducted in Italian.\nRequirements\n\n    Brin
 g your own laptop.\n    Registered participants will receive setup instruc
 tions via email before the event.\n_____________\nIntroduzione a PostgreSQ
 L - PostGIS \nCos'è PostgreSQL e la sua storia\nPerché usare PG: princip
 ali caratteristiche e confronto con altre soluzioni di GeoDB\nCos'è PostG
 IS\nCom'è organizzato PG: Cluster -> Database -> Schemi -> Tavole\nPrinci
 pali strumenti di amministrazione per PostgreSQL (Psql - PgAdmin - DBeaver
  - \nPhpPgadmin)\nIntroduzione alla gestione degli utenti e dei ruoli\nImp
 ortare i dati \nPrincipali metodi per importare e gestire i dati in postgr
 eSQL (shp2pgsql-gui\, ogr2ogr\, drag & \ndrop\, DB Manager)\nGestire i dat
 i spaziali \nTipi di dati spaziali PostGIS\ncreare un layer geografico\nin
 dici e sequence\nAnalisi spaziali \nAlcuni esempi di analisi spaziali e no
 n spaziali  (es: Conteggi\, group by\, ST_Centroid e \nST_PointOnSurface\,
  ST_Intersects)
DTSTAMP:20261016T015004Z
LOCATION:LGI 1 - Geoinformatics lab @ DIATI
SUMMARY:How to Create and Use Geodatabases in PostgreSQL / PostGIS - part 1
  - Luca Lanteri\, Rocco Pispico
URL:https://talks.osgeo.org/flowpath-2025/talk/TCHSZW/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-DG8HLY@talks.osgeo.org
DTSTART;TZID=CET:20250610T140000
DTEND;TZID=CET:20250610T170000
DESCRIPTION:Overview\n\nThis workshop offers an introduction to managing ge
 ospatial data using the PostGIS extension of the PostgreSQL database. Topi
 cs include data import from QGIS\, workspace environment analysis\, key Po
 stGIS functions\, query operations (selection and grouping)\, and geometry
  transformation and manipulation.\n\nThe workshop emphasizes hands-on acti
 vities\, and participants are required to bring their own laptops.\nLangua
 ge\n\nThe workshop will be conducted in Italian.\nRequirements\n\n    Brin
 g your own laptop.\n    Registered participants will receive setup instruc
 tions via email before the event.\n_____________\nIntroduzione a PostgreSQ
 L - PostGIS \nCos'è PostgreSQL e la sua storia\nPerché usare PG: princip
 ali caratteristiche e confronto con altre soluzioni di GeoDB\nCos'è PostG
 IS\nCom'è organizzato PG: Cluster -> Database -> Schemi -> Tavole\nPrinci
 pali strumenti di amministrazione per PostgreSQL (Psql - PgAdmin - DBeaver
  - \nPhpPgadmin)\nIntroduzione alla gestione degli utenti e dei ruoli\nImp
 ortare i dati \nPrincipali metodi per importare e gestire i dati in postgr
 eSQL (shp2pgsql-gui\, ogr2ogr\, drag & \ndrop\, DB Manager)\nGestire i dat
 i spaziali \nTipi di dati spaziali PostGIS\ncreare un layer geografico\nin
 dici e sequence\nAnalisi spaziali \nAlcuni esempi di analisi spaziali e no
 n spaziali  (es: Conteggi\, group by\, ST_Centroid e \nST_PointOnSurface\,
  ST_Intersects)
DTSTAMP:20261016T015004Z
LOCATION:LGI 1 - Geoinformatics lab @ DIATI
SUMMARY:How to Create and Use Geodatabases in PostgreSQL / PostGIS - part 2
  - Luca Lanteri\, Rocco Pispico
URL:https://talks.osgeo.org/flowpath-2025/talk/DG8HLY/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-7VAPRZ@talks.osgeo.org
DTSTART;TZID=CET:20250610T183000
DTEND;TZID=CET:20250610T203000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Ice Break party @ Valentino Castle - 
URL:https://talks.osgeo.org/flowpath-2025/talk/7VAPRZ/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-JDBGC9@talks.osgeo.org
DTSTART;TZID=CET:20250611T090000
DTEND;TZID=CET:20250611T100000
DESCRIPTION:Opening greetings:\n\nSergio	RUSI - President of the IAH Associ
 ation\nMariachiara ZANETTI - Vice Rector for Local\, National and European
  Affairs - Politecnico di Torino\nStefano	LO RUSSO - Mayor of the City of 
 Turin\nPantaleone DE VITA -  Vice President of the AIGA Association\nDanie
 le GIORDAN - Past President of IAEG Italy\nRodolfo	CAROSI	- President of S
 GI\nPaolo	MANCIN - Director of the Water Protection and Sustainable Use Di
 vision – Regione Piemonte\nMarco   DONATO - Delegate of the Regional Ass
 ociation of Geologists\nAlessandro 	PAVESE - Head of the Department of Ear
 th Sciences (DST) - University of Turin\nPaolo DABOVE - Delegate of the De
 partment of Environment\, Land and Infrastructure Engineering (DIATI) - Po
 litecnico di Torino
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Opening ceremony - 
URL:https://talks.osgeo.org/flowpath-2025/talk/JDBGC9/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-F3H7KL@talks.osgeo.org
DTSTART;TZID=CET:20250611T100000
DTEND;TZID=CET:20250611T101000
DESCRIPTION:The Emilia-Romagna region (Italy) hosts extensive agricultural 
 and industrial activity\, and densely populated urban areas. Groundwater s
 erves as a crucial freshwater source\, particularly during droughts\, whic
 h are expected to become more frequent and intense.\nThis study estimates 
 the evolution of groundwater conditions in part of Emilia-Romagna\, consid
 ering climate change and human impacts\, to assess the resilience of the r
 egional multi-layered aquifer system to droughts and outline potential gui
 delines for long-term sustainable groundwater management. A numerical grou
 ndwater flow model and a random forest algorithm\, implemented in MODFLOW 
 6 and R respectively\, are applied to compare the performance of a physics
 -based and a machine learning method in simulating past and future groundw
 ater levels\, and to explore the benefits of their combination. Input data
  are sourced from the regional groundwater model by Arpae (Regional Agency
  for Prevention\, Environment and Energy of Emilia-Romagna) and publicly a
 vailable datasets on the Emilia-Romagna Region and Arpae repositories.\nBo
 th techniques are then used to analyze scenarios of reduced precipitation 
 and altered pumping\, focusing on their combined effects on the aquifer sy
 stem. Results show the aquifer system’s vulnerability to future droughts
 . Increased pumping amplifies precipitation reduction effects\, while lowe
 r abstraction partly mitigates them. Critical hotspots are identified\, em
 phasizing the need for multi-scale approaches to develop effective mitigat
 ion and adaptation strategies.\nThe random forest algorithm provides insig
 hts into factors influencing groundwater head distribution\, enhancing the
  groundwater model results interpretation and potential improvement. Howev
 er\, its lack of physical grounding limits its generalization potential. T
 hese findings highlight the value of integrating physics-based and machine
  learning methods to improve their performance\, making a significant cont
 ribution to groundwater modeling.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:A comparative study of physics-based and machine learning approache
 s for sustainable groundwater management in the Emilia-Romagna region (Ita
 ly) - Ilaria Delfini
URL:https://talks.osgeo.org/flowpath-2025/talk/F3H7KL/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-SYGLJN@talks.osgeo.org
DTSTART;TZID=CET:20250611T101000
DTEND;TZID=CET:20250611T102000
DESCRIPTION:Seawater intrusion into coastal aquifers is a growing global co
 ncern\, driven by climate change\, sea-level rise\, and intensive groundwa
 ter exploitation. Effective assessment and monitoring strategies are cruci
 al for sustainable water resource management. Traditional hydrogeological 
 investigations\, such as borehole measurements\, provide point-source data
  but lack the spatial resolution necessary for comprehensive regional asse
 ssments. Geophysical techniques\, in particular Electrical Resistivity Tom
 ography (ERT) and Frequency Domain Electromagnetics (FDEM)\, offer non-inv
 asive alternatives with distinct advantages and limitations.\nThis study p
 resents a comparative evaluation of ERT and FDEM techniques for mapping sh
 allow seawater intrusion at four test sites along the northern coastal mar
 gin of Friuli Venezia Giulia\, Italy\, each with different salinity levels
 \, lithological conditions\, and seasonal variations. ERT surveys provided
  high-resolution subsurface conductivity data\, used as the reference data
 set. The FDEM measurements were carried out using two different instrument
 s: a multi-depth\, constant-frequency system and a single-offset\, multi-f
 requency system\, both of which allow rapid and extensive data acquisition
 .\nTo ensure robust comparability\, FDEM-derived apparent electrical condu
 ctivity (ECa) values were normalized against ERT-derived conductivity data
 . The results indicate that\, despite its rapid acquisition capabilities\,
  FDEM can provide reliable estimates of subsurface conductivity without si
 te-specific calibration\, using appropriate data normalization techniques.
 \nThis research underscores the potential of FDEM as a cost-effective and 
 scalable solution for monitoring seawater intrusion\, providing valuable i
 nsights into groundwater salinization dynamics and advancing methodologies
  for large-scale environmental and water resource management.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Comparison of electrical resistivity tomography and frequency domai
 n electromagnetic methods for mapping seawater intrusion in shallow aquife
 rs - Benedetta Surian
URL:https://talks.osgeo.org/flowpath-2025/talk/SYGLJN/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-3TVUT3@talks.osgeo.org
DTSTART;TZID=CET:20250611T102000
DTEND;TZID=CET:20250611T103000
DESCRIPTION:Climate Change effects in the central Mediterranean region are 
 expected to lead to higher temperatures\, reduced rainfall and a higher pr
 opensity for extreme events.  Higher water demands particularly by the agr
 icultural sector are anticipated\, with concurrent lower recharge rates to
  groundwater\, a main source of water for agriculture under semi-arid dry 
 landscape conditions.\n\nThe conjunctive management of surface (including 
 rainwater runoff) and groundwater resources provides the opportunity to us
 e currently depleted aquifers experiencing long-term over-abstraction as s
 ubsurface water storage systems\,  carrying over water from periods of ava
 ilability to the dry season.\n\nThe establishment of a robust governance f
 ramework for Managed Aquifer Recharge (MAR) activities is a key factor for
  ensuring the safe application of this technique and ensuring a sufficient
 ly high level of protection for the groundwater environment\, protecting i
 ts role as a natural water resource for the future. \n\nThe Water Framewor
 k and Groundwater Directives are the main legal instruments for the manage
 ment of groundwater resources in the European Union.  Analysis of the rele
 vant regulatory provisions within these Directives through the EU-funded M
 arsol and Marsolut projects indicates that these constitute a sufficiently
  robust regulatory framework for safe MAR. Findings emphasize the importan
 ce of focusing on the quality of recharge water rather than its origin\, t
 he necessity of stringent quality control measures before water enters the
  MAR system and the critical role of permits based on comprehensive risk a
 ssessments of the entire MAR system.\n\nThis paper reviews the role of the
  EU’s regulatory framework in supporting MAR as a scientifically sound\,
  safe and sustainable groundwater management strategy to address emerging 
 Climate Change challenges.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Managed Aquifer Recharge – An opportunity for the Groundwater Env
 ironment to support Water Resilience under Climate Change - Manuel Sapiano
URL:https://talks.osgeo.org/flowpath-2025/talk/3TVUT3/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-YZB83V@talks.osgeo.org
DTSTART;TZID=CET:20250611T103000
DTEND;TZID=CET:20250611T104000
DESCRIPTION:Managed Aquifer Recharge (MAR) could be a crucial strategy for 
 addressing the impacts of climate change. Specifically\, infiltration pond
 s may help to replenish depleted aquifers\, thereby mitigating the effects
  of drought or groundwater overexploitation. Additionally\, it may contrib
 ute to reducing the risk of flooding by utilizing river waters. This resea
 rch aims to identify water bodies (WBs\, deriving from DQA “Direttiva Qu
 adro acque”) suitable for MAR following Italian directives. The Emilia-R
 omagna Region's database includes 453 Surface Water Bodies (SWBs)\, such a
 s rivers and other watercourses\, along with 135 Groundwater Bodies (GWBs)
 . An evaluation system to identify the optimal combinations between SWB an
 d GWB to design infiltration ponds has been developed\, focusing on alluvi
 al fan systems along the Apennine foothills. First\, GWBs were selected du
 e to their poor quality and critical quantity issues\, whereas SWBs were c
 hosen based on their quality and ecological requirements (DM 100/2016). Fo
 rty-two combinations were identified between SWGs and GWBs. A quantitative
  and empirical evaluation was conducted involving a systematic combination
  assessment of key factors\; each assigned a rating and weighting. The sum
  of these factors results in a global index for each combination of SWG an
 d GWB. This allows for the establishment of a ranking for the WBs combinat
 ions\, from the most to the least favorable. Key factors include river dis
 charge rate\, flood hazards\, and the presence of non-active quarries near
  SWB. GWBs are evaluated considering lithology\, permeability\, and water 
 table level. Our results enable to select all WBs suitable for MAR as perm
 itted by Italian legislation and to rank SWB-GWB combinations specifically
  focused on infiltration pond MAR. Future research will focus on the best 
 combinations identified in this study to characterize the optimal sites fo
 r implementing infiltration ponds MAR.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Suitable aquifers for MAR projects in the Emilia-Romagna Region acc
 ording to current Directive and hydrogeological setting - Alessio Mainini
URL:https://talks.osgeo.org/flowpath-2025/talk/YZB83V/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-JQNEA7@talks.osgeo.org
DTSTART;TZID=CET:20250611T104000
DTEND;TZID=CET:20250611T105000
DESCRIPTION:Managed Aquifer Recharge (MAR) has emerged in recent years as a
  climate change adaptation measure to increase water availability in dry s
 easons and\, in coastal aquifers\, also to contrast the seawater intrusion
 .\nThe SeTe (Sécheresse et Territoires) project\, funded by the EU progra
 mme Interreg ALCOTRA\, involves the feasibility study and demonstration of
  MAR in the Cuneo plain\, a large shallow alluvial aquifer at the south-we
 stern edge of the Po Plain. In this area\, the availability of water for i
 rrigation during summer has diminished in recent years\, sparking the init
 iative for testing MAR as an environmentally and economically sustainable 
 countermeasure.\nThe three project pilot sites identified in the project -
  Beinette\, Tetti Pesio-Morozzo and Tarantasca-Centallo - are characterize
 d by the presence of “fontanili”\, i.e. drainage trenches dug since th
 e Middle Ages to reclaim marshy land by lowering the groundwater level. Fl
 ow rates up to 1400 l/s are extracted by fontanili\, which therefore repre
 sent an important irrigation water source but are very sensitive to ground
 water level declines.\nThe activities and the results of the first half of
  the SeTe-ALCOTRA project\, which started in October 2023 and lasts 3 year
 s\, are hereby summarized.\nHistorical meteorological\, geological\, and h
 ydrogeological data were collected to reconstruct the climate impacts on w
 ater resources and to characterize the shallow aquifer. \nThree monitoring
  networks were implemented in the test sites to measure groundwater levels
  and flow rates in the fontanili. Field tests were performed to characteri
 ze the aquifer in the experimental recharge sites\, such as Lefranc tests\
 , pumping tests\, and grain size distribution analyses on samples from cor
 e drillings and shallow excavations. \nThree infiltration structures have 
 been designed\, with two configurations (two sites with a shallow trench a
 nd one with a vadose zone well)\, and their installation and first weeks o
 f operation will be presented.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Feasibility of Managed Aquifer Recharge (MAR) in the Cuneo plain: e
 xperiences from the SeTe-ALCOTRA project - Alessandro Casasso
URL:https://talks.osgeo.org/flowpath-2025/talk/JQNEA7/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-LA9VQQ@talks.osgeo.org
DTSTART;TZID=CET:20250611T105000
DTEND;TZID=CET:20250611T110000
DESCRIPTION:Groundwater plays a crucial role in the water cycle and in sust
 aining life and human activities\, and can help alleviate hydrological dro
 ught periods serving as a buffer reservoir. Groundwater sustainability\, h
 owever\, relies on a delicate balance between recharge and discharge\, in 
 which humans play an important role\, with influences on groundwater depen
 dent ecosystems. Agricultural Managed Aquifer Recharge (Ag-MAR) can be an 
 adaptation measure to drought periods and expected climate change effects 
 on water resources. As part of the Interreg CE project MAURICE\, an off-se
 ason irrigation practice is proposed in Lombardy as a climate change adapt
 ation strategy\, storing surface water into aquifers in periods of exceeda
 nce (autumn/winter) using the existing irrigation network’s canals as a 
 "natural" infiltration system.\nIn the case study area\, a great number of
  typical Northern Italy lowland springs\, called “fontanili”\, is pres
 ent\, used since the XIV century to irrigate fields while generating biodi
 versity hotspots right in a urbanized area. In the past decades\, they hav
 e been largely abandoned and endangered by infrastructures and decreasing 
 groundwater levels. Their relationship with groundwater still holds some u
 ncertainties related to their interaction with the aquifer along their cou
 rse and their influence on the surrounding groundwater system\, which coul
 d hinder the performance of measures like the proposed Ag-MAR.\nThis work 
 presents numerical models in MODFLOW that\, with increasing complexity\, r
 eproduce a single lowland spring’s behavior based on in-situ observation
 s and literature\, considering pros and cons of the different methods. The
 n\, the lowland springs have been implemented in a larger scale model\, to
  simulate scenarios assessing their response to the implementation of off-
 season irrigation. Results bring more light to these unique systems’ beh
 avior and show concrete and successful possibilities of modeling them and 
 applying Ag-MAR also in their presence.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Observing a climate change adaptation solution’s linkages with gr
 oundwater dependent ecosystems: a modeling and field based approach - Paol
 o Colombo
URL:https://talks.osgeo.org/flowpath-2025/talk/LA9VQQ/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-MAUAUU@talks.osgeo.org
DTSTART;TZID=CET:20250611T110000
DTEND;TZID=CET:20250611T112000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:1-minute poster Session A - Chair Dr. Elena EGIDIO - 
URL:https://talks.osgeo.org/flowpath-2025/talk/MAUAUU/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-WAV98W@talks.osgeo.org
DTSTART;TZID=CET:20250611T115000
DTEND;TZID=CET:20250611T122000
DESCRIPTION:The keynote is talking about the Rising Groundwater Temperature
 s: Risks and Rewards in Times of Global Warming and Urban Expansion\nGroun
 dwater systems are increasingly affected by the dual forces of global clim
 ate change and urbanization. Even under a medium emissions scenario\, shal
 low groundwater temperatures could rise significantly by 2100. Urban areas
  exhibit even more pronounced subsurface warming due to the urban heat isl
 and effect\, with groundwater temperatures in city centers exceeding those
  in surrounding rural areas.\n\nThis talk will delve into the mechanisms d
 riving groundwater warming\, including the roles of surface temperature in
 creases and anthropogenic heat sources. It will explore the potential impl
 ications on water quality\, ecosystem health\, and the potential for geoth
 ermal energy utilization. Only by examining both global trends and localiz
 ed studies\, challenges and opportunities presented by rising groundwater 
 temperatures in the context of sustainable urban development and water res
 ource management can be highlighted.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Rising Groundwater Temperatures: Risks and Rewards in Times of Glob
 al Warming and Urban Expansion - Susanne Benz
URL:https://talks.osgeo.org/flowpath-2025/talk/WAV98W/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-JCCWUG@talks.osgeo.org
DTSTART;TZID=CET:20250611T122000
DTEND;TZID=CET:20250611T123000
DESCRIPTION:On small oceanic islands such as the Azores\, water resource ma
 nagement plans increasingly need to incorporate the effects of global clim
 ate change to accurately predict future water supplies for populations and
  agricultural activities\, particularly farming.\nThe expected changes in 
 temperature and precipitation on the Azores islands have important implica
 tions for all components of the island's hydrological cycle\, altering the
  amount of evapotranspiration\, surface runoff and infiltration into groun
 dwater systems.\nGroundwater is the only source of water supply on the Azo
 res islands\, with around 236\,413 inhabitants (2021 census)\, 1\,000\,000
  tourists per year and 2\,000 km from the mainland\, without the capacity 
 to import large quantities of freshwater. The exploited aquifers are of th
 e perched type\, with a low storage capacity and flows with large seasonal
  variations\, and basal with salinization problems due to marine intrusion
 .\nThis article discusses some effects of climate change on the groundwate
 r of this island\, especially in the basal aquifer\, the likely main sourc
 e of freshwater in the future on this island.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Climate Change and Groundwater on Azores Islands - Francisco Cota R
 odrigues
URL:https://talks.osgeo.org/flowpath-2025/talk/JCCWUG/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-X73JCT@talks.osgeo.org
DTSTART;TZID=CET:20250611T123000
DTEND;TZID=CET:20250611T124000
DESCRIPTION:The Po Plain is home to approximately 20 million people and ser
 ves as Italy's most important economic region. Beneath its surface lies a 
 complex multi-aquifer alluvial system that supplies 87% of the region’s 
 drinking water and plays a crucial role in industrial\, agricultural\, and
  general production demands. Beyond the pressures of groundwater extractio
 n\, climate-related stressors have altered recharge rates\, with drought e
 vents becoming increasingly frequent and severe in recent years. However\,
  the impact of these stresses on groundwater has never been systematically
  studied in the Po River Basin.\nAs part of the MIDASPO project*\, piezome
 tric data were collected over 13 years (2010–2022) at various depths acr
 oss the Po Plain\, ranging from ground level to several hundreds of m a.s.
 l. This period was chosen as it provides sufficient coverage for piezometr
 ic monitoring across the studied area.\nData homogenization and an in-dept
 h evaluation of temporal coverage allowed for the selection of several hun
 dred of high-quality time series from an initial dataset of over 1000. The
 se series were then analyzed to identify long-term trends\, seasonal varia
 tions\, and potential change points.\nThe analysis provided a comprehensiv
 e overview of piezometric dynamics at different depths across the Po Plain
 . Some trends were consistent across the entire study area\, while others 
 varied by geographic region or depth. By examining these patterns in relat
 ion to key anthropogenic and natural stressors\, the study offers valuable
  insights into potential future groundwater behavior.\n\n*This work was fu
 nded by “Fondo per lo Sviluppo e la Coesione (FSC) 2014-2020 - Piano Ope
 rativo Ambiente - Interventi per la Tutela del Territorio e delle Acque - 
 Sviluppo di modellistica idrogeologica e delle conoscenze di supporto al p
 iano del bilancio delle acque sotterranee (Modello idrogeologico delle Acq
 ue Sotterranee del distretto idrografico del fiume Po – MidAS-Po)”.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Groundwater levels in the Po plain: current trends and insights on 
 future variations - Maria Filippini
URL:https://talks.osgeo.org/flowpath-2025/talk/X73JCT/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-LJVUNZ@talks.osgeo.org
DTSTART;TZID=CET:20250611T124000
DTEND;TZID=CET:20250611T125000
DESCRIPTION:The implementation of the Water Framework Directive (2000/60/CE
 ) and the Groundwater Framework Directive (2006/118/CE) aims to achieve a 
 good environmental status of water bodies\, both in chemical and quantitat
 ive terms\, in order to ensure their sustainable management. The member st
 ates of the European Union carry out the status assessment by setting up m
 onitoring networks and programmes.  According to the European Directives\,
  the Southern Apennines River Basin District Authority has identified the 
 enhancement and standardisation of wells and springs monitoring systems as
  one of the priority measures to be undertaken to update the Water Managem
 ent Plan.  Groundwater monitoring is of primary importance for the Mediter
 ranean region\, a critical area for climate change\, as decreasing effecti
 ve rainfall and the increasing frequency and severity of droughts have bee
 n observed over recent decades. A robust assessment of the climatic effect
 s on groundwater flow systems is necessary to evaluate the resilience of a
 quifers to climate change\, and only a comparison between historical and c
 ontemporary detailed monitoring programmes can achieve this goal.  The res
 ults of the most detailed hydrogeological monitoring of springs ever perfo
 rmed in Italy\, organized in the regional-based monographs Le Sorgenti Ita
 liane (conducted by the National Hydrographic Service between the 1920s an
 d 1960s)\, have been compared\, after a spring-by-spring matching\, with c
 ontemporary field surveys and tests of drinking water supply springs.  Pre
 liminary findings\, concerning the Calabria and Basilicata Regions\, revea
 l a non-homogeneous decline in groundwater discharge\, related to the lith
 ology of the aquifer and geographic location\, while some springs still ma
 intain a significant flow. This highlights the urgent need for the impleme
 ntation of discharge monitoring networks to support early warning systems 
 and drought mitigation strategies.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:The quantitative monitoring network of groundwater bodies within th
 e Southern Apennine River Basin District. A comparison between past and pr
 esent - Claudia Pensa
URL:https://talks.osgeo.org/flowpath-2025/talk/LJVUNZ/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-KGUQ7G@talks.osgeo.org
DTSTART;TZID=CET:20250611T125000
DTEND;TZID=CET:20250611T130000
DESCRIPTION:Springs are a natural interface between groundwater (GW) and su
 rface water\, supporting ecosystems (ES) and they are sentinels of environ
 mental stress. Yet\, despite their importance\, they are still overlooked 
 in European water policies. The SentinelSpringS project aims to fill this 
 gap by developing a robust framework to assess the health of springs and t
 heir role in sustaining biodiversity. \nThe project brings together six Eu
 ropean countries to tackle local challenges and develop a unified monitori
 ng approach. Portugal focuses on methods to identify GW-dependent ES and e
 valuating the impacts of contamination and land use. Denmark leads the imp
 lementation of real-time water data into the European Geological Data Infr
 astructure\, upgrading GW monitoring digital tools. Italy studies the stat
 us of lowland springs with hydrogeological and ecological monitoring. Fran
 ce applies hydrogeochemical and hydrological modelling to forecast the beh
 aviour of karst springs in relation to climate change (CC) and human impac
 t. Poland focuses on ecological evaluations\, integrating biodiversity dat
 a with remote sensing to analyse and model processes at local and landscap
 e scales. Malta pursues citizen science activities\, while monitoring GW f
 low from perched aquifers and investigating possible conservation approach
 es for small island ES.\nThrough the integration of data from all partners
 \, this project will institute standardised monitoring protocols. Moreover
 \, this project  will assess the impact of CC and human activities on spri
 ngs in different European landscapes. The project also fosters citizen sci
 ence involvement and stakeholder partecipation\, making sure that local co
 mmunities both contribute to and benefit from it.\nAcknowledgement: Sentin
 elSpringS is a funded research project by the Water4All Partnership-Water 
 Security for the Planet (Water4All/0010/2023) which is co-funded by the Eu
 ropean Union within the frame of the Horizon Europe programme.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:SentinelSpringS: Springs as Sentinels of Climate Change and Sustain
 ability of Aquatic Ecosystems - Elena Egidio
URL:https://talks.osgeo.org/flowpath-2025/talk/KGUQ7G/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-D8SNCR@talks.osgeo.org
DTSTART;TZID=CET:20250611T130000
DTEND;TZID=CET:20250611T131000
DESCRIPTION:The baseflow is the slow streamflow component related to ground
 water outflows from shallow and deep aquifers. In a context where climate 
 change is increasingly evident\, it is crucial to study how it is potentia
 lly affected by climate (Longobardi and Van Loon\, 2018). Focusing on a wa
 ter scarcity context\, drought effect produces impacts for long periods ev
 en beyond its duration and\, as they appear after its onset\, an effective
  monitoring system can support the prediction of phenomena with a view to 
 mitigation actions planning (Panu & Sharma\, 2002). The research contribut
 es to drought propagation studies\, from meteorological to hydrological sy
 stems\, in the perspective of climate change. The Tanagro river basin is a
 n approximately 660 km2 catchment located in southern Italy\, Campania reg
 ion\, featured by a typical mediterranean climate. The Tanagro river fresh
 water is characterized by a conspicuous spring contribution and is mainly 
 used for irrigation purposes and for the production of energy from renewab
 le sources. Meteorological and hydrological droughts are respectively asse
 ssed by the assessment of the Standardized Precipitation Index SPI and the
  Standardized Groundwater Index SGI\, from monthly scale precipitation and
  discharge for the period 1918-2019 (McKee et al.\, 1993). A correlation a
 nalysis is proposed to assess the lag between meteorological and hydrologi
 cal drought as well as the drought propagation rate is computed as the rat
 io between hydrological and meteorological drought events. The results wil
 l contribute to a methodological proposal for the quantification of the re
 silience of hydrological systems to climate change and the possibility for
  meteorological drought forecasting affecting hydrological systems. The ac
 tivity falls within the objectives of the WaterWise project “Water Manag
 ement Strategies and Climate Change Adaptation in Southern Italy” (SPOKE
  VS1 “Acqua” Project “Multi-Risk sciEnce for resilienT commUnities u
 ndeR a changiNg climate - RETURN).
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:FROM METEOROLOGICAL TO GROUNDWATER DROUGHT IN THE TANAGRO RIVER BAS
 IN IN THE PERSPECTIVE OF CLIMATE CHANGE - Maria Francesca Palmiero
URL:https://talks.osgeo.org/flowpath-2025/talk/D8SNCR/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-BABSWY@talks.osgeo.org
DTSTART;TZID=CET:20250611T131000
DTEND;TZID=CET:20250611T132000
DESCRIPTION:The assessment of drought duration\, severity\, and its impact 
 on groundwater resources can be achieved through the integrated analysis o
 f climatic indices and groundwater level fluctuations. This study investig
 ates the effects of drought periods on groundwater within distinct sectors
  of the Castelporziano Estate aquifer. Utilizing data from two meteorologi
 cal stations and the Estate's piezometric monitoring network\, a comprehen
 sive analysis was conducted. The availability of extensive thermo-pluviome
 tric and piezometric records (1995-2024) facilitated the computation of th
 e Standardized Precipitation-Evapotranspiration Index (SPEI) and the Stand
 ardized Groundwater Index (SGI)\, enabling the evaluation of their variati
 ons over the past 30 years. \nPrior research has established the presence 
 of a main aquifer\, exhibiting seasonal fluctuations primarily driven by l
 ocal meteoric inputs\, with base flow sustained by contributions from the 
 regional aquifer. The Coastal and Central sectors\, mainly recharged by lo
 cal precipitation\, show a different decline in piezometric levels. Compar
 ative analysis of the SPEI calculated for two weather stations\, one situa
 ted along the coast and the other in the inland sector of the Estate\, rev
 ealed significant variations\, which prove decisive in the recharge proces
 ses of these sectors. The Coastal sector exhibited a consistent pattern of
  alternating wet and dry periods until 2016\, followed by a sustained drou
 ght period extending to 2023. These fluctuations are reflected in groundwa
 ter levels\, as evidenced by the SGI\, which has registered continuous neg
 ative values since 2016\, reaching its minimum values in 2024. In the Cent
 ral sector\, the SPEI indicates a protracted drought from 1999 to 2008\, r
 esulting in a persistent reduction of piezometric heads. Consistent negati
 ve SGI values since 2008 corroborate the enduring water deficit in this se
 ctor\, with a discernible exacerbation observed in the last three years\, 
 correlating with the SPEI trend.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Assessing the effects of drought periods on the undeterred aquifer 
 of Castelporziano Natural Reserve (Rome\, Italy). - Chiara Sbarbati
URL:https://talks.osgeo.org/flowpath-2025/talk/BABSWY/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-7DKC9X@talks.osgeo.org
DTSTART;TZID=CET:20250611T145000
DTEND;TZID=CET:20250611T150000
DESCRIPTION:In the AMARONE project\, funded by the Cohesion and Development
  Fund (FSC 2014-2023)\, a regional-scale numerical model was developed to 
 comprehensively assess the hydrogeological water balance in the High and M
 iddle Venetian plains. The partnership between the Department of Geoscienc
 es of the University of Padova and the Eastern Alps River Basin District A
 uthority aimed to develop a valuable tool for water management to support 
 public authorities\, in accordance with the European Community’s Water F
 ramework Directive (WFD) that promotes sustainable water use and its long-
 term protection. 	\nThe implemented numerical model extends from the Minci
 o River to the Tagliamento River\, covering an area of about 6100 km2 cros
 sed by a dense network of alpine rivers\, spring rivers and artificial cha
 nnels. This area is characterized by the transition from the unconfined aq
 uifer system on gravelly materials of the high plain to the multiaquifer s
 ystem of the low plain\, primarily composed of gravelly-sandy confined aqu
 ifers separated by silty-clayey aquitards. The transition between these hy
 drogeological provinces is marked by a plain spring belt and the groundwat
 er exploitation in the region is a crucial factor for both social and econ
 omic reasons\, as evidenced by the abundant extraction through pumping wel
 ls estimated at 2351.4 M m3/year\, primarily used for drinking\, domestic\
 , irrigation and industrial purposes.	 \nThis complex situation was simula
 ted using a three-dimensional finite-difference numerical model based on t
 he MODFLOW-NWT code\, implementing and calibrating a steady-state simulati
 on to represent the average behavior of the system in the period 2010-2022
 \, based on the results of the previously developed monodimensional water 
 balance. This approach allowed the integration of hydrogeological data int
 o the balance\, such as hydraulic heads and hydraulic conductivity\, resul
 ting in a numerical model useful for performing balances on the water bodi
 es of the Veneto region.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Hydrogeological water balance in the high and middle venetian plain
  defined through a regional-scale numerical model (NE\, Italy) - Davide Ca
 ppellari
URL:https://talks.osgeo.org/flowpath-2025/talk/7DKC9X/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-ZGKTS9@talks.osgeo.org
DTSTART;TZID=CET:20250611T150000
DTEND;TZID=CET:20250611T151000
DESCRIPTION:Unlike surface water modeling\, large-scale groundwater numeric
 al modeling has rarely been conducted in Italy\, leading to a weaker under
 standing of aquifers compared to river dynamics. As part of MidAS-Po proje
 ct\, Po River District Basin Authority started a scientific collaboration 
 involving academic and institutional experts to analyze and discuss the cu
 rrent knowledge on Po Plain aquifers. The goal is to bridge the gap and in
 itiate a process to enhance awareness of water resources.\nOver two years\
 , the first conceptual model was developed under the guidance of six scien
 tific groups\, focusing on 3D reconstruction and parametrization\, boundar
 y condition\, withdrawals\, aquifer recharge\, calibration boreholes\, and
  modeling coordination.\nThe first groundwater numerical model of the Po P
 lain is currently underway. To summarize with a few key figures\, it inclu
 des: 12 model layers\, over 30\,000 active grid cells per layer\, more tha
 n 4\,000 km of river network\, over 150\,000 well points\, more than 1\,00
 0 calibration boreholes\, and nearly 60\,000 head measurements\, spanning 
 148 monthly stress periods. Recharge has been estimated using a soil water
  balance model that takes into account meteorological data\, land use\, pe
 dology and irrigation practices.\nAlthough the project is still ongoing\, 
 some preliminary findings can already be drawn. Despite the vast amount of
  collected data\, much more remains to be obtained. Stakeholder involvemen
 t is crucial in a region spanning four different local government institut
 ions\, approximately 60 water companies\, and 60 irrigation districts. The
 refore\, future project development must include strategies to collect mis
 sing data and ensure its effective management for future applications. Onc
 e refined\, the model will serve as a tool to understand groundwater dynam
 ics\, monitor the system\, and design new measures for water protection.\n
 Acknowledgment\nMidAS-Po-Modello idrogeologico delle Acque Sotterranee del
  distretto idrografico del fiume Po-FSC 2014-2020
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Large scale groundwater modeling for drafting the groundwater budge
 t in the Po River district - Cesare Vasini
URL:https://talks.osgeo.org/flowpath-2025/talk/ZGKTS9/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-AARSTL@talks.osgeo.org
DTSTART;TZID=CET:20250611T151000
DTEND;TZID=CET:20250611T152000
DESCRIPTION:Agricultural managed aquifer recharge (Ag-MAR) techniques invol
 ve intentional enhancement of groundwater recharge through agricultural pr
 actices to increase water availability in aquifers which can be used to su
 pport irrigation. Successful implementation of Ag-MAR requires thorough hy
 drogeological understanding and can be supported by mathematical models to
  quantify infiltrated volumes and to evaluate aquifer contamination risks.
  Ag-MAR could be relevant for long-term sustainability of rice production 
 in the Piedmont–Lombardy regions\, where 92% of the national rice produc
 tion is concentrated. Our study focuses on the Lomellina area (1250 km2)\,
  a sub-region of the Piedmont–Lombardy rice basin\, bordered by the Sesi
 a\, Po and Ticino rivers. This region is an alluvial plain with flat topog
 raphy (elevations between 52–133 m asl)\, where the phreatic aquifer is 
 very shallow and crucial for rice production.  Recently\, groundwater leve
 ls are declining due to changes in climate and rice irrigation management\
 , and the question is whether Ag-MAR can reverse this trend. In this study
 \, to estimate the recharge from the agricultural area and the extensive i
 rrigation channel network\, a modeling framework based on a semi-distribut
 ed application of the SWAP model (https://www.swap.alterra.nl/) was implem
 ented in QGIS and completed with a simple model simulating the percolation
  from the irrigation network. Then\, MODFLOW-6 was used to develop a trans
 ient model which includes surface recharge and the main natural and artifi
 cial streams and canals exchanging water with the aquifer. The groundwater
  flow model was calibrated using groundwater level time series from 22 mon
 itoring wells in the study area. This study was carried out in the context
  of the PROMEDRICE project (https://promedrice.org/\; PRIMA-Section2–202
 2) funded\, for the Italian partners\, by MUR (Italian Ministry of Univers
 ity and Research).
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Assessment of the Ag-MAR potential of rice flooding practices throu
 gh a groundwater flow model in the Piedmont–Lombardy rice basin in North
 ern Italy - Petra Baják
URL:https://talks.osgeo.org/flowpath-2025/talk/AARSTL/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-GCRB88@talks.osgeo.org
DTSTART;TZID=CET:20250611T152000
DTEND;TZID=CET:20250611T153000
DESCRIPTION:Groundwater (GW) and surface waters (SW) salinization is affect
 ing coastal aquifers\, and this phenomenon\, exacerbated by climate change
  (CC)\, is altering water cycle in transitional coastal environments. To c
 ompare GW fluxes and salinity origins\, two coastal unconfined aquifers of
  Italy\, the lower Po River lowland and Volturno River\, were selected. A 
 density-dependent numerical model was realized (SEAWAT4.2) with the same g
 rid resolution (200x200m) and time steps (monthly\, 2010-2020)\, to enhanc
 e the comparison. The models allowed to quantify GW flow directions change
 s and salinity evolution and to compare GW and saline fluxes within the aq
 uifers. Both models were used to underpin SW-GW interactions and the CC im
 pact. Each model was calibrated versus GW heads observations and high-reso
 lution salinity profiles with good model performance. \nThe Po River aquif
 er simulation highlighted a salinity increase in the deeper aquifer layers
  due to increased upward GW fluxes triggered by decreased recharge rates a
 nd a “Polder” like situation. Shallow layers experienced both increasi
 ng and decreasing salinization trends depending on irrigation. The saliniz
 ation of the drainage network is increasing during the modelled period\, d
 espite the seasonal and interannual variability. \nThe Volturno aquifer si
 mulation highlighted an increasing GW salinization pattern due to seawater
  intrusion from the Volturno riverbed\, induced by the decreased discharge
  rate. This salinization mechanism is complicated by salt leaching from pe
 aty and silty-clay lenses deposited during the Late Holocene\, when the co
 astal area was an inner bay. \nThe model budget intercomparison suggested 
 that the classical mechanism of seawater wedge intrusion from the coastlin
 e is limited to the first km inland in both aquifers. While large inland p
 ortions of the model domains are characterized by high salinity due to rem
 nant paleo seawater in aquitards\, driving the GW salinity evolution and t
 he salinity exchange with SW.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Cross comparison of groundwater fluxes and dissolved salts in the V
 olturno and Po River coastal aquifers via SEAWAT model budgets - Mattia Ga
 iolini
URL:https://talks.osgeo.org/flowpath-2025/talk/GCRB88/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-CEZG9R@talks.osgeo.org
DTSTART;TZID=CET:20250611T153000
DTEND;TZID=CET:20250611T154000
DESCRIPTION:Biomarkers associated with the biodegradation of chlorinated et
 henes (CEs)\, such as RDase functional gene DNA\, mRNA\, and enzymes\, are
  increasingly monitored in contaminant plumes to assess reductive dechlori
 nation (RD). These biomarkers provide direct proof of RD and are used to e
 valuate biodegradation potential and possibly infer degradation rates. How
 ever\, aquifers are inherently heterogeneous\, and local hydrodynamic and 
 biogeochemical conditions likely influence the behavior and efficiency of 
 organohalide-respiring bacteria. Moreover\, identifying the key factors sh
 aping the observed spatiotemporal patterns of chemicals and biomarkers rem
 ains a challenge.\nAt the Grindsted site (Denmark)\, a 1500-m long CE plum
 e has developed from a former pharmaceutical factory. Extensive monitoring
  of both chemicals and biomarkers has been conducted at this site. To aid 
 in the data interpretation\, we developed new enzyme-based kinetics linkin
 g the reductive dechlorination of cis-1\,2-dichloroethene to vinyl chlorid
 e and ethene with the expression of the vcrA and bvcA genes in Dehalococco
 ides. These kinetics were integrated into a 1D reactive transport model si
 mulating the Grindsted plume\, also including the estimated variable flow 
 rates. Fitting the observed chemicals and biomarkers (i.e.\, functional ge
 ne DNA and mRNA) required to calibrate the kinetic parameters with a zonal
  approach.\nAs a result\, the model pointed out different ecological strat
 egies of vcrA- and bvcA-carrying Dehalococcoides\, which affected the RD e
 fficiency within the plume core. Moreover\, CE biodegradation efficiency a
 ppeared further decreased under high flow rate conditions\, because of the
  shorter residence time.\nThis modeling endeavor is the first attempt of f
 ield application and allowed enhancing the mechanistic interpretation of o
 bserved chemical and biomarker patterns in the CE plume. Consequently\, it
  proved to be a reliable support for designing of future monitoring and re
 mediation strategies.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Interpreting chemical and biomarker patterns with reactive transpor
 t modeling to assess chlorinated ethene biodegradation in groundwater - Di
 ego Di Curzio
URL:https://talks.osgeo.org/flowpath-2025/talk/CEZG9R/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-RXBBXA@talks.osgeo.org
DTSTART;TZID=CET:20250611T154000
DTEND;TZID=CET:20250611T155000
DESCRIPTION:In a scenario of climate changes forecasting the availability o
 f water from springs is desirable to prevent shortage in water supply to t
 he connected utilities like aqueducts and irrigation systems. That is\, it
  would be useful to know the “signature” response of the aquifer.\nThi
 s work focuses on the application of the ensemble smoother with multiple d
 ata assimilation (ES-MDA) to build a hydrological model for flow rate pred
 iction in a karst aquifer using the well-known instantaneous unit hydrogra
 ph method and the rational formula. The aquifer studied is the Bossea-Arte
 sinera karst aquifer\, located in northwest Italy in the Maritime Alps wit
 h an infiltration basin of around 6 km2. The input data are observed disch
 arge flow rates\, daily precipitations\, and temperatures. Some of the cha
 llenges that have been addressed in this research are the modelling of inf
 iltration as a time-varying infiltration coefficient\, the classification 
 of precipitation into snowfall and rainfall\, and the transformation of sn
 ow into water equivalent infiltration. Others parameters of the hydrologic
  model such as base flow\, infiltration coefficient\, or snow melting cont
 ribution were estimated.\nAs first step\, individual events were examined 
 and the ES-MDA produced excellent results with values of Nash-Sutcliffe ef
 ficiency never below 0.9. Then on the basis of 27 such events\, two averag
 e models were identified: one to be applied in spring months when the impa
 ct of snow melting is important and the other during autumn months. These 
 average models used for predictions did not work as remarkably as the indi
 vidually fitted models: fall model performances were better that those of 
 the spring model suggesting that the snow equivalent calculation has to be
  improved\, being the main difference between the two seasons. It is diffi
 cult to conclude whether a signature exist for Bossea\, still it is clear 
 that the ES-MDA is a powerful tool to investigate single event and give in
 sights on the aquifer dynamics.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Predicting discharge in complex karst aquifers through the ensemble
  smoother with multiple data assimilation: the case of Bossea aquifer. - I
 laria Butera
URL:https://talks.osgeo.org/flowpath-2025/talk/RXBBXA/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-TSLAZY@talks.osgeo.org
DTSTART;TZID=CET:20250611T155000
DTEND;TZID=CET:20250611T163000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:1-minute Poster Session B - Chair: Dr. Martina GIZZI - 
URL:https://talks.osgeo.org/flowpath-2025/talk/TSLAZY/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-EADLBG@talks.osgeo.org
DTSTART;TZID=CET:20250611T170000
DTEND;TZID=CET:20250611T173000
DESCRIPTION:Deep geological repositories (DGRs) for isolating nuclear waste
  must be designed to last hundreds of thousands of years. Relevant process
 es needing consideration over such time scales include density-dependent f
 low\, glacial loading\, permafrost formation and thaw\, and heat and brine
  transport. Host geological media can be complex and heterogeneous\, inclu
 ding discrete fractures or fracture zones and depth-dependent hydraulic co
 nductivity. Numerical modelling can provide much needed insight into the b
 ehavior of these non-linear systems.\nIn this context\, the finite element
  model HEATFLOW/SMOKER has been further developed and applied to predict t
 he effect of glacial cycles and permafrost freeze/thaw on deep groundwater
  flow systems relevant to a DGR. Simulations are based on a 2D conceptual 
 model of the recently-approved Revell storage site in northern Ontario\, C
 anada.\nDriven by future projections of historic air temperatures\, glacie
 r base temperatures and glacier thickness\, the 120\,000-year simulations 
 show how permafrost can extend hundreds of metres deep\, potentially isola
 ting deep flow systems. Unfrozen zones (or taliks) potentially forming in 
 discharge zones\, remain a concern as pathways to surface.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Numerical Model Development and Application to Nuclear Waste Storag
 e: Freeze & Thaw over Glacial Time Scales - John Molson
URL:https://talks.osgeo.org/flowpath-2025/talk/EADLBG/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-8MSFVC@talks.osgeo.org
DTSTART;TZID=CET:20250611T173000
DTEND;TZID=CET:20250611T174000
DESCRIPTION:This study presents a model-based analysis of hydrodynamic flow
  and heat transport in the Budapest Thermal Karst System\, including futur
 e production scenarios and the impact of newly planned facilities. It emph
 asizes the need for sustainable management of the region due to overlappin
 g exploration requests—many of which are geographically close to vulnera
 ble karst spring areas—following regulatory changes. In response\, the G
 eological Survey of Supervisory Authority for Regulatory Affairs initiated
  the Budapest Geothermal Research Programme.\nNumerical modelling was cond
 ucted using extensive geological and geophysical data\, improving the reli
 ability of the geological model for the covered karst aquifer and tectonic
  features\, mainly on the Pest side. A high-resolution 55 km 2D seismic ne
 twork\, gravity data\, data from more than 300 deep and approx. 30\,000 sh
 allow boreholes\, and 2D/3D seismic interpretations contributed to a new 3
 D geological model. This includes six geological time-horizon models\, six
  geologic formation maps\, seven geological-geophysical sections\, and a P
 re-Cenozoic basement geologic and tectonic map.\nThe region contains cold 
 and hydrothermal karst systems\, including hypogene caves and springs that
  supply Budapest’s thermal baths. To prevent significant changes in hydr
 aulic heads\, temperatures\, and water composition due to new geothermal f
 acilities\, protective zones must be delineated. A harmonized water chemis
 try and isotope hydrology database was developed\, interpreting main chemi
 cal components\, discharge temperatures\, and isotope data.\nBoth convecti
 ve and conductive heat transport were simulated using FEFLOW® software wi
 th density-dependent heat transport. A regional (approx. 4477 km²) model 
 with refined mesh around spring areas identified critical karst water supp
 ly zones and vulnerable regions through visualized maps\, supporting decis
 ion-making processes.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Hydrodynamic and heat transport modelling for the sustainable manag
 ement of the Budapest Thermal Karst - Éva Kun
URL:https://talks.osgeo.org/flowpath-2025/talk/8MSFVC/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-JXPKXW@talks.osgeo.org
DTSTART;TZID=CET:20250611T174000
DTEND;TZID=CET:20250611T175000
DESCRIPTION:Coastal karst aquifer of Lattari Mts. (~280 km2) supports drink
 ing water supply of the Sorrento Peninsula and Capri Island\, an over dens
 ely populated area in summer\, economically strategic for Campania region 
 (Italy) and outstanding environmental and cultural value. Based on in-dept
 h literature review and a GIS and R-based analysis of hydrological data\, 
 this study aims to reconstruct a novel conceptual hydrogeological model an
 d update the water balance to prevent excessive groundwater exploitation a
 nd deterioration from potential saline intrusion due to intensive withdraw
 als. A multi-method approach was used to assess a multi-scale groundwater 
 recharge\, integrating geological\, land use\, soil type\, cover type\, ve
 getation cover type and thermo-pluviometric data recorded with monthly and
  daily frequency by 24 meteorological stations over the period 2000–2023
 . In order to estimate the groundwater recharge\, three methodologies were
  applied\, two using the same water budget approach but different evapotra
 nspiration calculation methods (e.g. Thornthwaite-Mather and MODIS data)\,
  and a third independent approach based on the SWB (Soil Water Balance) mo
 del. Subsequently\, a comparison of groundwater recharge with natural outf
 low (Qoutsw) and withdrawals (Qoutw) was conducted using a geodatabase of 
 650 water point. At the aquifer scale\, the mean annual groundwater rechar
 ge estimated with Thornthwaite-Mather formula (5.21 m³/s) and MODIS (4.88
  m³/s) exceed those evaluated with SWB model (3.91 m³/s). The mean annua
 l groundwater recharge remains higher than water withdrawals in all cases\
 , although at the basin scale the current water withdrawals may be unsusta
 inable in the long term in some cases\, especially considering the interan
 nual variability of recharge. Results obtained can support decision-makers
  and stakeholders in promoting sustainable groundwater use and enhancing w
 ater system security in Campania's strategic economic area.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Hydrogeological conceptual model and multi-method approach for grou
 ndwater recharge estimation of the Monti Lattari karst aquifer (southern I
 taly) - Daniele Lepore
URL:https://talks.osgeo.org/flowpath-2025/talk/JXPKXW/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-FTUTFX@talks.osgeo.org
DTSTART;TZID=CET:20250611T175000
DTEND;TZID=CET:20250611T180000
DESCRIPTION:The use of low-enthalpy geothermal energy through vertical bore
 hole heat exchangers (BHE) represents a low-impact solution\, based on a r
 enewable energy source that is widespread worldwide. This study focuses on
  studying the most significant parameters that influence the energy perfor
 mances and the environmental impact of vertical borehole heat exchangers (
 BHE) installed in different geological contexts. \nThe aim of the study is
  to develop a design guide for designers indicating the optimal distances 
 between a row of BHE arranged perpendicular to groundwater flow and varyin
 g operational condition of the energy system\, geometry of BHE and the hyd
 rogeological parameters of the aquifer. The study was performed through th
 e implementation of synthetic numerical models into MODFLOW-USG code. The 
 vertical U-shape pipes of BHE were implemented into the model adapting the
  Connected Linear Network (CLN) Package\, such as discussed in Antelmi et 
 al.\, 2021. Specific flow and thermal boundary conditions were introduced 
 to reproduce the real operation of a vertical BHE and various physical and
  hydrogeological properties of the aquifer were set to simulate a wide ran
 ge of porous materials characteristics (from clay to sand and gravel).\nSt
 arting from numerical models representing a single BHE\, having the aim to
  determine operating conditions without interferences\, different borefiel
 d of 3 and 5 BHE were implemented to study in detail how their closeness c
 an influence the energy performance of the central BHE and the extension o
 f the thermal plume. Fixed a threshold (95%) of acceptance related to the 
 heat rate exchanged reduction between BHE and surrounding subsoil\, the op
 timal distances between geothermal exchangers were carried out for each pa
 rameter combination: results show an optimal distance ranging from 8 meter
  for fine materials and low groundwater flow velocity to 2 meters for coar
 se materials and higher groundwater flow velocity.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:The influence of the hydrogeological setting for the definition of 
 the optimal spacing between vertical borehole heat exchangers - Daniele Pr
 evitali
URL:https://talks.osgeo.org/flowpath-2025/talk/FTUTFX/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-RZBM3L@talks.osgeo.org
DTSTART;TZID=CET:20250611T180000
DTEND;TZID=CET:20250611T181000
DESCRIPTION:Installation of open-loop geothermal heat pump (GSHP) systems f
 or heating and cooling of buildings requires detailed planning in order to
  maximize management efficiency and minimize unwanted impacts. Failure to 
 do so can induce a decline in public acceptance of these systems. \nGround
 water modeling is essential for extracting management and impact salient i
 nformation from site data\, quantifying the repercussions of data insuffic
 iency\, and providing a basis for effective acquisition of further data. W
 e exemplify a workflow for use in heterogeneous hydrogeological environmen
 ts using a synthetic model based on a real-world setting. Simulation emplo
 ys the MODFLOW 6 Groundwater Energy (GWE) model. The simulator is paramete
 rized with stochastic hydraulic property fields based on nonstationary var
 iograms. This type of parameterization can express hydrogeological conditi
 ons that prevail in complex aquifers such as those that exist near rivers\
 , or are affected by faulting/fracturing. The numerical burden of assimila
 ting borehole head and thermal data in order to quantify and reduce uncert
 ainties of predicted GSHP efficiency and impact is minimal\, as this is im
 plemented using data space inversion (DSI). This eliminates the need for h
 istory-match-adjudicated parameter adjustment\, while associating realisti
 c uncertainties with management-critical predictions. Use of DSI offers th
 e additional benefit of allowing rapid assessment of the ability of as yet
  unacquired data to reduce the uncertainties of key system performance and
  impact predictions\, at the same time as it allows continuous assimilatio
 n of new data that emerges through GSHP operation. \nDespite its outward c
 omplexity\, this approach to open-loop GSHP system management is relativel
 y easy to implement and incurs only a minimal numerical burden.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Groundwater Modelling for Open-Loop Geothermal Heat Pump Systems Ma
 nagement - Francesca Lotti
URL:https://talks.osgeo.org/flowpath-2025/talk/RZBM3L/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-TR7H3C@talks.osgeo.org
DTSTART;TZID=CET:20250611T181000
DTEND;TZID=CET:20250611T182000
DESCRIPTION:According to the aim of achieving the highest level of environm
 ental sustainability\, an open-loop geothermal system has been planned for
  thermal needs (warming and cooling) of a large public building that will 
 host a bibliotheque\, a theatre and many civil buildings for universitary 
 studies.\nThe system is located into the shallow (phreatic) aquifer hosted
  into alluvial Pleistocenic deposits drained by the river Po\; initially d
 esigned for a supply < 100 l/s\, it will be up-graded in order to cover th
 e whole needs of the thermal station of the complex of buildings called 
 “To-Expo”\, with a nominal discharge of 160 l/s.\nThe test-site is loc
 ated into a wider analysis area\, in which existings data sets concerning 
 stratigraphic and hydrogeological pattern have been collected and updated 
 also by groundwater levels measurements\, toward the end of an extraordina
 ry recession period (2022)\, fixing the minimum reference conditions of fl
 ow into the aquifer.\nThe project has been supported by an exaustive groun
 d survey that has been set up into the test-site area\, by geophysical inv
 estigations (ERT\, MASW\, HSVR profiles)\, direct sampling (boreholes\, pi
 ezometers) and hydraulic and laboratory testing.\nThe simulation numerical
  model (finite element model – FeFlow with supermesh grid) has been impl
 emented to reproduce the present-state but above all flow and heat transpo
 rt scenarios\, considering 4 extraction and 4 inflowing wells and a piezom
 etric control network too. The model covers a wider area discretized with 
 6 computations layers\, settled around and inside the open-loop system\, d
 etermining external and internal boundary conditions and sink/source terms
 \, both flow and thermal\, in transient conditions\, estimating the evolut
 ion of the thermal plume in exercise mode referred to a 20-years scenario.
 \nThe whole plant has been approved by the Local Authorities\, and the wel
 ls drilling program is currently ongoing.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Design of an open-loop geothermal system for heating and cooling a 
 cultural and university centre - Elena Cogo\, ENydrion
URL:https://talks.osgeo.org/flowpath-2025/talk/TR7H3C/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-JFCN8A@talks.osgeo.org
DTSTART;TZID=CET:20250611T182000
DTEND;TZID=CET:20250611T183000
DESCRIPTION:In groundwater modeling\, uncertainty in parameters and predict
 ions can be reduced by history-matching the model against observations of 
 groundwater levels. When observations span different periods or come from 
 pumping tests\, complex calibration schemes may be required\, potentially 
 making optimization unfeasible. In such cases\, the modeler may choose to 
 lose information by reducing or simplifying the observation set in exchang
 e for a manageable process.\nThis study employs the Ensemble Space Inversi
 on (ENSI) methodology for history-matching a groundwater model of a comple
 x site against a large number of observations. ENSI estimates "super param
 eters" instead of native model parameters\, using an ensemble of random sa
 mples from prior parameter probability distributions. A key advantage of t
 his method is that it requires far fewer super parameters than model param
 eters\, reducing the number of model runs needed to calculate parameter se
 nsitivities.\nENSI was applied to a site characterized by heterogeneous py
 roclastic and volcanic deposits\, with three distinct aquifers. Various hy
 draulic tests were conducted to determine site-specific hydrogeological pa
 rameters\, assess vertical conductance\, derive pumping well characteristi
 cs\, and collect piezometric data. A six-layer numerical model was develop
 ed using MODFLOW-USG. Hydraulic parameters were calibrated via pilot point
 s\, with values interpolated through kriging.\nCompared to history-matchin
 g the same model using a standard GLM method applied to model parameters\,
  ENSI provided several advantages: fast convergence to low objective funct
 ion values\, significantly reduced execution time\, and natural parameter 
 field distributions.\nThough ENSI does not perform uncertainty estimation\
 , it offers a fast and effective way to obtain a single history-matched mo
 del\, which could serve as a starting point for ensemble-based uncertainty
  assessment.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Efficient history-matching of a complex groundwater model using Ens
 emble Space Inversion - Mattia De Caro
URL:https://talks.osgeo.org/flowpath-2025/talk/JFCN8A/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-KAZFMN@talks.osgeo.org
DTSTART;TZID=CET:20250611T183000
DTEND;TZID=CET:20250611T184000
DESCRIPTION:The hydrogeological connection between tunnel excavation and sp
 rings is a key aspect to be assessed during the preliminary design phase\,
  both for environmental and socio-economic reasons. Based on a preliminary
  hydrogeological survey and environmental monitoring of the springs\, the 
 need to anticipate potential impacts at an early stage influences both the
  feasibility of the project and the design of mitigation measures in more 
 critical areas.\nA data-driven Machine Learning (ML) approach\, designed t
 o incorporate the complexity of the relationships between various physical
  and hydrogeological parameters contributing to the risk of spring impact 
 due to tunneling\, was calibrated using a dataset from detailed hydrogeolo
 gical monitoring conducted alongside the excavation of two major tunnels i
 n the Apennines (Italy)\, involving sedimentary and carbonate karst aquife
 rs.\nThe approach shows good scores for model evaluation\, and here we pre
 sent the results of a further validation against datasets from two additio
 nal sites: one in the Alps (Brenner Base Tunnel\, within a crystalline aqu
 ifer) and another in the Apennines (Bologna-Florence highway pass variant\
 , within a turbiditic sedimentary setting). The application of the method 
 to these new sites—one of which features a geological setting different 
 from the original validation dataset— shows good scores again\, demonstr
 ating its potential for broader generalization.\nThe results were compared
  with those of the Drawdown Hazard Index (DHI)\, demonstrating that both m
 ethods can effectively identify risk while also highlighting the sensitivi
 ty of the latter. Specifically\, by adjusting the various thresholds\, hig
 hly accurate results can be achieved. Conversely\, the ML models generate 
 outputs that are not subject to modification or classification into discre
 te categories.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Validation of a Machine Learning tool for preliminary quantificatio
 n of the hydrogeological interference risk of tunnels. - Ernesto Pugliese
URL:https://talks.osgeo.org/flowpath-2025/talk/KAZFMN/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-UDDGHD@talks.osgeo.org
DTSTART;TZID=CET:20250611T184000
DTEND;TZID=CET:20250611T185000
DESCRIPTION:Deep learning paradigms are widespread approaches for manifold 
 environmental applications. Their strength consists in the possibility of 
 processing massive quantities of data as well as performing complex tasks\
 , with unsupervised procedures. The use of deep learners\, based on neural
  computing\, proved its effectiveness for data classification\, data gener
 ation\, time series prediction\, etc.. In particular\, recurrent neural ne
 tworks are suitable for time series prediction. Here\, recurrent neural ne
 tworks are used to model groundwater levels of the large shallow porous aq
 uifer of Brindisi. This is an aquifer with a catchment of approximately 10
 00 km2 located in the upper east Salento peninsula\, in southeast Italy. I
 t is hosted by the shallow Quaternary deposits consisting of weakly cement
 ed sands\, which diffusively outcrops in its catchment. This aquifer is re
 charged by local rainfalls\, which do not significantly change across the 
 catchment\, in terms of volumes and time distribution. This shallow aquife
 r was monitored by the former National Hydrographic Bureau\, whereas piezo
 metric wells were used to acquire groundwater level measurements with a fr
 equency of one measure every three days. However\, these time series\, ava
 ilable for 6 wells between 1952 and 2002\, are not complete\, since severa
 l gaps\, i.e. missing data exist. These time series\, together with the ti
 me series of rainfall data are used to train a recurrent neural network\, 
 which is able to predict average monthly groundwater levels as well as rec
 onstructing missing data\, whereas time series are incomplete. Differently
  from machine learning approaches\, multiple well groundwater time series\
 , as well as multiple rain gauge time series will be used together\, in or
 der to train the deep learner.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Groundwater level prediction based on deep learning - Lorenzo Di Ta
 ranto
URL:https://talks.osgeo.org/flowpath-2025/talk/UDDGHD/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-USWSTL@talks.osgeo.org
DTSTART;TZID=CET:20250611T185000
DTEND;TZID=CET:20250611T195000
DESCRIPTION:Discussion on Italian hydrogeology: which problems to tackle?\n
 \nWhat are the problems to be addressed in hydrogeology in Italy? A delibe
 rately generic question to stimulate an active and participatory discussio
 n among both the invited speakers and the audience\, leading to a moment i
 n which the Italian hydrogeology community can reflect on the open questio
 ns in their field that are worth addressing. The idea for the event stems 
 from the “23 Unsolved Problems in Hydrology”\, a choral work of the in
 ternational hydrology community to identify open questions in the field of
  hydrology worldwide.\n\nThe event will be held in Italian\n\nOrganized by
  ECHN-Italian chapter
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:ECHN round table - 
URL:https://talks.osgeo.org/flowpath-2025/talk/USWSTL/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-VHYBCG@talks.osgeo.org
DTSTART;TZID=CET:20250612T090000
DTEND;TZID=CET:20250612T091000
DESCRIPTION:The Hydrogeological Map of Italy at 1:500\,000 scale represents
  a significant advancement in the national hydrogeological knowledge frame
 work.Positioned between the European Hydrogeological Map (IHME1500) and re
 gional maps\, it provides a comprehensive and standardized reference for g
 roundwater assessment across Italy.This initiative integrates existing geo
 logical and hydrogeological datasets from multiple scales\, ensuring consi
 stency and accuracy. The project employs a geospatial overlay technique to
  harmonize regional hydrogeological information at 1:250\,000 scale with n
 ational geological data at 1:500\,000 scale. This process allows for the c
 lassification of hydrogeological complexes based on relative permeability\
 , ensuring a coherent national representation of subsurface hydrodynamics.
 \nThe map includes various thematic layers\, developed also in collaborati
 on with Istat\, such as productivity\, piezometric data\, cold and thermal
  springs\, representative monitoring stations defining the current regiona
 l state of the art on groundwater resources in Italy.\nAn innovative aspec
 t of the project is the participatory approach\, facilitated through a Web
 GIS platform. This system enabled the Italian hydrogeological scientific c
 ommunity to provide feedback\, suggest modifications\, and updated geospat
 ial data\, ensuring a high-quality and widely acknowledged result. he digi
 tal version of the map is intended as a dynamic product\, open to continuo
 us updates as new information becomes available.\nThe new hydrogeological 
 map provides policymakers\, researchers\, and water resource managers with
  a unified tool for groundwater assessment\, improving legislative and man
 agement decisions. Its adherence to ISPRA’s guidelines makes it a refere
 nce framework for future thematic hydrogeological maps.It represents a fun
 damental step in national-scale groundwater knowledge\, bridging gaps in p
 revious cartographic efforts and establishing a homogenous baseline for fu
 ture research and resource management.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:A new participatory Hydrogeological Map of Italy 1:500\,000 scale -
  Francesco La Vigna
URL:https://talks.osgeo.org/flowpath-2025/talk/VHYBCG/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-JJTU77@talks.osgeo.org
DTSTART;TZID=CET:20250612T091000
DTEND;TZID=CET:20250612T092000
DESCRIPTION:The Venice coastal plain and its surroundings is suffering of s
 oil and surface water salinization due to seepage of saline groundwater in
 to drainage canals of agricultural lands and soil salinization due to irri
 gation water quality. To study this phenomenon\, two agricultural fields e
 xperiencing crop yield decrease in the last years were selected. The field
 s are located in a reclaimed area at approximately 2 m below sea level in 
 the Venice province\, 2.5 km from the Venice Lagoon (Site 1) and in Rovigo
  province\, 10.5 km from the Venice Lagoon and 18.5 km from the Adriatic S
 ea (Site 2). To delineate the salinity gradients\, 9 high resolution verti
 cal profiles of soil cores were collected with an electrical auger corer a
 nd analysed in the field via a Meter® TDR for porewater salinity\, volume
 tric water content (VWC)\, and temperature\, and in the laboratory for sed
 imentary organic matter (SOM) gravimetrically\, major ions and trace eleme
 nts (TEs) via IC and ICP-EOS\, respectively. The composition of porewater
 ’s leaching fraction (LF) was gained via deionized water batch extractio
 n with solid liquid ratio 1:5\, while the plant available water (PAW) was 
 obtained via microwave hot water extraction in three selected profiles. St
 ratigraphical cores were almost homogeneous with the most permeable layers
  constituted by organic sandy layers. An average porewater salinity of 2.2
  g/l with an upward increasing trend was found in Site 1\, while an averag
 e porewater salinity of 3.5 g/l with a downward increasing trend was found
  in Site 2. Vertical profiling highlighted the strong connection among som
 e trace elements and the saline organic horizons in Site 2\, characterized
  by paleo-seawater upward fluxes. Conversely\, Site 1 was mostly affected 
 by evapoconcentration processes of irrigation waters. The PAW salinity was
  up to two times the LF\, highlighting that organic layers are the major s
 aline source in these reclaimed lands and they can release large amount of
  solutes as well as TEs.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Profiling salinity in a coastal shallow aquifer near the Venice lag
 oon - Luigi Alessandrino
URL:https://talks.osgeo.org/flowpath-2025/talk/JJTU77/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-G3TNZT@talks.osgeo.org
DTSTART;TZID=CET:20250612T092000
DTEND;TZID=CET:20250612T093000
DESCRIPTION:This study estimates the recharge dynamics in an unconfined por
 ous coastal aquifer by means of a time-series approach. Two water wells we
 re selected in the Volturno Plain (Campania Region\, southern Italy)\, res
 pectively located in a wetland area close to the coastline (Pz1) and in an
  agricultural not irrigated field at 10 km inland close to the Volturno Ri
 ver (Pz2). A multiparameter probe was installed in each water well to meas
 ure: water depth\, temperature and electrical conductivity. Data were coll
 ected every 24 hours from February 2016 to December 2017 in Pz1\, and ever
 y 12 hours from October 2022 to the present in Pz2. Rainfall data collecte
 d at the meteorological station closest to each monitoring point were cons
 idered in the analysis. The recharge rate was estimated using the Water Ta
 ble Fluctuation (WTF) method. Six and five single recharge events were ide
 ntified at Pz1 and Pz2\, respectively. \nAt Pz1\, the recharge ratio (RR\,
  ratio between recharge amount and precipitation amount) remains constant 
 throughout the year (average RR = 45%)\, likely due to the presence of mar
 shy land\, which limits groundwater recharge during heavy rainfall. At Pz2
 \, RR shows seasonal variations with average values of 104% in autumn-wint
 er and 351% in spring-summer\, probably related to the agricultural practi
 ses (bare land\, planting\, growing and harvest phases). The results indic
 ate that recharge decreases as precipitation increases due to greater pore
  saturation during the infiltration process. In both sites\, we observe th
 at precipitation events exceeding 50 mm in 24 hours result in a decrease i
 n both electrical conductivity and temperature\, highlighting the influenc
 e of infiltration dynamics on groundwater chemistry. Lastly\, recharge amo
 unts calculated using the WTF method are compared with those obtained thro
 ugh a classical hydrogeological balance\, showing a good correlation.\nThi
 s study highlights how groundwater recharge varies in response to seasonal
  changes and soil conditions.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Recharge estimation from groundwater level fluctuations in a coasta
 l unconfined aquifer in Campania Region (southern Italy) - Elena Del Gaudi
 o
URL:https://talks.osgeo.org/flowpath-2025/talk/G3TNZT/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-MSKAPR@talks.osgeo.org
DTSTART;TZID=CET:20250612T093000
DTEND;TZID=CET:20250612T094000
DESCRIPTION:Low-permeability fractured rocks constitute the bedrock of many
  regions worldwide. Due to the extreme heterogeneity and anisotropy\, thes
 e rocks show very complex and varied drawdown-time trends when subjected t
 o pumping. Understanding these trends is crucial for operational decisions
 \, such as utilizing wells for water supply or managing dewatering operati
 ons in mining sites. This study examines nine pumping tests in an andesiti
 c bedrock formation. The tests were carried out in wells of varying depths
  (30 - 260 m) in a region where groundwater circulation is not always cont
 inuous in the network of discontinuities. The tests lasting between 9 and 
 68 hours were generally carried out at constant flow rate (0.4-6 L/s) with
  measurements of drawdown in the pumping well and\, in some cases\, in an 
 observation well. The drawdown data versus time have been analyzed through
  semi-log plots\, the smoothed time series’ have then been represented o
 n bi-log plots together with the first derivative of the drawdown. The tre
 nds of the drawdown and its derivative have been compared with theoretical
  curves\, and interpretation was refined using flow dimension sequence ana
 lysis. The results show very different responses of the aquifer to pumping
 \, which are affected by the interconnection of discontinuities\, the pres
 ence of multiple hierarchical networks of discontinuities and of dykes tha
 t bisects a country-rock aquifer. \nData from pumping tests was integrated
  by earth tides groundwater response from 6 piezometers and by additional 
 information deriving from RQD available for 400 boreholes to obtain a prob
 ability distribution of the hydraulic parameters to be used as prior infor
 mation in numerical modelling.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Groundwater flow in fractured bedrock: prior information from pumpi
 ng tests\, RQD and Earth tides - Chiara Sbarbati
URL:https://talks.osgeo.org/flowpath-2025/talk/MSKAPR/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-LMA3VG@talks.osgeo.org
DTSTART;TZID=CET:20250612T094000
DTEND;TZID=CET:20250612T095000
DESCRIPTION:In the confined aquifers of the lower alluvial plains the fine 
 grain size of the sediments (sands and silts) and the chemical-physical ch
 aracteristics of the groundwater (reducing environment with high levels of
  dissolved iron and manganese) have important consequences on the service 
 life and efficiency of water wells\; these are often affected by clogging 
 phenomena of the well screen\, caused by physical\, chemical\, and biochem
 ical (biofouling) processes. Typical symptoms are the progressive lowering
  of dynamic level and operating flow rate\, with a consequent reduction of
  the specific capacity parameter. Occlusion of the gravel pack and well sc
 reen causes a progressive reduction in the efficiency and productivity of 
 the well\, with negative effects on the quantity and quality  of the produ
 ced water.\nThe work analyses a case study in the lower Po Plain (Province
  of Ferrara) where the presence of a drinking water well field has allowed
  the collection of a significant hydrogeological data set\, especially in 
 recent years\, thanks to continuous flow rate and groundwater level measur
 ement systems. In particular\, the temporal evolution of the specific capa
 city parameter is evaluated\, analysing the possible dependencies on the c
 onstruction characteristics of the wells\, the boundary conditions and the
  local geochemical characteristics of the aquifer\, in order to formulate 
 hypotheses on the physical\, chemical and biochemical processes involved a
 nd to obtain useful indications for the management and scheduled maintenan
 ce of the wells.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Analyses of decreasing productivity of groundwater wells in confine
 d aquifers of the lower Po Plain (Ferrara\, Italy) - Daniele Rizzo
URL:https://talks.osgeo.org/flowpath-2025/talk/LMA3VG/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-KFWFJR@talks.osgeo.org
DTSTART;TZID=CET:20250612T095000
DTEND;TZID=CET:20250612T100000
DESCRIPTION:Low-enthalpy geothermal energy has been identified as a sustain
 able solution for urban heating and cooling\, with open-loop systems effic
 iently harnessing aquifer resources. This study introduces a novel methodo
 logy that integrates Geographic Information System (GIS) tools with classi
 cal hydrogeological equations to assess the potential of geothermal aquife
 rs in urban environments. A comprehensive bibliographic analysis underpins
  the approach\, drawing on fundamental models such as Darcy’s Law\, the 
 Thiem-Dupuit formulations\, and the Cooper & Jacob method. These establish
 ed equations are combined with high resolution spatial data to evaluate gr
 oundwater flow\, aquifer transmissivity\, and well interference parameters
 . The methodology produces geothermal potential maps that identify zones w
 ith optimal water availability and adequate well spacing\, providing a rel
 iable preliminary assessment tool before engaging in complex numerical sim
 ulations. A case study in an urban environment demonstrates the effectiven
 ess of the method in delineating suitable areas for open-loop geothermal a
 pplications\, thereby addressing challenges related to spatial constraints
  and resource variability. Preliminary results indicate that the approach 
 can estimate flow rate extraction and water thermal power\, providing valu
 able quantitative insights. This innovative approach not only enhances the
  understanding of aquifer behaviour under low-enthalpy conditions\, but al
 so offers essential decision-making support for urban planners\, policymak
 ers\, and energy stakeholders. By combining classical hydrogeological theo
 ries with modern GIS capabilities\, the framework significantly contribute
 s to the strategic development of low-carbon energy solutions and the sust
 ainable deployment of open-loop geothermal systems.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:A Novel Approach for Unlocking the Geothermal Potential of Urban Aq
 uifers - Alessandro Berta
URL:https://talks.osgeo.org/flowpath-2025/talk/KFWFJR/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-L3ZN3E@talks.osgeo.org
DTSTART;TZID=CET:20250612T100000
DTEND;TZID=CET:20250612T104000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:1-minute poster Session C - Chair: Dr. Roberta NARCISI - 
URL:https://talks.osgeo.org/flowpath-2025/talk/L3ZN3E/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-KW83S7@talks.osgeo.org
DTSTART;TZID=CET:20250612T111000
DTEND;TZID=CET:20250612T114000
DESCRIPTION:Flow and transport processes in porous media encompass a divers
 e range of physical and (geo)chemical phenomena. While these take place ac
 ross multiple spatial and temporal scales\, their quantification is fraugh
 t with significant challenges. Their inherent complexity naturally leads t
 o multiple interpretations that are rendered through diverse conceptual mo
 dels and mathematical formulations. As we navigate the complexities of pro
 cess formulation and parameterization\, addressing uncertainties is then i
 ncreasingly critical. Key challenges include managing spatial heterogeneit
 y of model parameters\, such as\, e.g.\, permeability\, porosity or reacti
 on rate parameters\, and tackling our limited knowledge of the detailed ch
 aracteristics of the porous medium. In this context\, we delve into the un
 certainties associated with process and system formulation\, as well as pa
 rameterization. We evaluate their impact on critical model outputs of envi
 ronmental significance\, including solute concentrations\, source protecti
 on areas\, and reaction rates. Our discussion encompasses experimental stu
 dies\, characterization of spatial patterns and heterogeneities within por
 ous media\, global sensitivity analysis\, and stochastic inverse modeling.
  We explore these uncertainties through illustrative scenarios that range 
 from regional- to laboratory- scales. We consider complex aquifer systems\
 , the dynamics of a pharmaceutical compound at the laboratory scale\, and 
 nanoscale observations of mineral dissolution under continuous flow condit
 ions.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Characterizing flow and transport in porous media: challenges of mo
 del and parameter uncertainty - Alberto Guadagnini
URL:https://talks.osgeo.org/flowpath-2025/talk/KW83S7/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-TUQJZM@talks.osgeo.org
DTSTART;TZID=CET:20250612T114000
DTEND;TZID=CET:20250612T115000
DESCRIPTION:Understanding how large lakes interact with multilayer aquifers
  is crucial for managing water resources\, especially where groundwater an
 d surface water are closely connected. These interactions\, found in many 
 regions worldwide\, are shaped by complex geological formations and dynami
 c groundwater flows. Investigating them requires a multidisciplinary appro
 ach that integrates (i) detailed 3D geological modeling\, (ii) hydraulic c
 haracterization of the subsurface\, and (iii) natural tracers to track wat
 er (and groundwater) movements and refine hydrogeological processes. This 
 study examines the connection between Garda Lake and the surrounding Preal
 ps and moraine-alluvial aquifers\, a essential water reservoir for norther
 n Italy. Spanning the provinces of Brescia\, Mantova\, and Verona\, this a
 rea plays a key role in recharging the Po Basin aquifer system\, making gr
 oundwater monitoring and protection necessary. To explore these dynamics\,
  a hydrogeological conceptual model has been developed using geological su
 rveys\, official maps\, and water well stratigraphy\, supported by isotopi
 c and microbiological tracer analysis. The results confirm a strong hydrau
 lic link between the lake and aquifers. The moraine aquifer\, composed of 
 highly permeable sediments\, is directly connected to the lake bottom and 
 banks\, allowing continuous water exchange. Below it\, the alluvial multil
 ayer aquifer\, with alternating coarse and fine sediments\, also interacts
  with the lake. These aquifers\, in turn\, connect to the fractured Prealp
 s formations\, forming a continuous hydrogeological system at the regional
  scale. By integrating geological\, hydraulic\, and tracer-based analyses\
 , this study provides new insights into lake-aquifer interactions in compl
 ex settings. Beyond its relevance for the Po Plain\, the approach offers a
  valuable framework for managing groundwater in similar regions worldwide\
 , where lakes and aquifer plays fundamental function in the storage of thi
 s vital resource.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Interaction between large lakes and multilayer aquifers: a multidis
 ciplinary study on Garda Lake - Riccardo Pinardi
URL:https://talks.osgeo.org/flowpath-2025/talk/TUQJZM/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-HECBVM@talks.osgeo.org
DTSTART;TZID=CET:20250612T115000
DTEND;TZID=CET:20250612T120000
DESCRIPTION:A quantitative assessment of mountain-front recharge from Alpin
 e and Apennine areas to Po Plain alluvial aquifers has often been overlook
 ed in previous studies and is therefore addressed in this research project
  through the study of two pilot piedmont areas (Brescia and Bologna).\nThe
  recharge assessment is performed using 1) endmember mixing models based o
 n conservative tracers of water (water stable isotopes) and salinity (Cl/B
 r ratio) and 2) water balance calculations based on discharge measurements
  of mountain rivers. A one-year monitoring of 41 wells tapping the alluvia
 l piedmont aquifers\, 17 mountain springs/wells\, 11 mountain rivers/strea
 ms and 3 rainwater collecting stations was carried out.\nResults showed th
 at the sources of groundwater recharge vary in the different areas and sub
 -areas depending on the hydrogeological features and the land and water us
 es. More specifically\, in the moraine of Lake Iseo in the Brescia area (F
 ranciacorta)\, recharge is given by the mixing of 1) surface mountain-fron
 t recharge (sMFR) from minor streams coming from the moraine hills\, 2) lo
 cal (plain area) precipitations and 3) surface-water-irrigation return flo
 w. In the piedmont urban area of Brescia recharge is due to 1) focused mou
 ntain-block recharge (fMBR) from the Alpine alluvial aquifer of Val Trompi
 a\, 2) diffuse mountain-block recharge (dMBR) from the karst Alpine aquife
 r and 3) sMFR from the Mella River. In the carbonate area of Carso Brescia
 no recharge is mainly due to 1) dMBR from the karst Alpine aquifer and 2) 
 surface-water-irrigation return flow. Concerning the Apennine area of Bolo
 gna\, the alluvial fan aquifers of the Reno\, Savena and Idice Rivers are 
 recharged by (1) sMFR from the rivers and (2) local precipitations. Rechar
 ge from MBR appears negligible in most cases. Mixing models also showed th
 at a relevant source of water for pumping wells in Bologna is deep fossil 
 groundwater. \nThis project was funded by the European Union – Next Gene
 ration EU – PRIN 2022
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Assessing Alpine and Apennine mountain-front recharge to Po Plain a
 lluvial aquifers: the AMBRA project - Marco Rotiroti
URL:https://talks.osgeo.org/flowpath-2025/talk/HECBVM/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-XXM7PX@talks.osgeo.org
DTSTART;TZID=CET:20250612T120000
DTEND;TZID=CET:20250612T121000
DESCRIPTION:Over the past 20 years\, the perception of groundwater resource
 s in the Northern Apennines has shifted significantly. Once considered a r
 egion of "poor hydrogeology" compared to the Alps and Central-Southern Ape
 nnines\, now some of their main aquifer units are recognized as a high-qua
 lity\, climate-resilient strategic resource. This renewed interest has bee
 n driven by scientific research along with the support from public water c
 ompanies (Gruppo Hera\, Montagna 2000) and direct hydrogeological observat
 ions from railway and highway tunnel excavations\, providing new insights 
 into groundwater flow systems active within the main fractured aquifers: s
 hallow marine Miocenic arenites\, foredeep silico-clastic or calcareous Pa
 leogenic and Neogenic turbidites and Jurassic ophiolites (peridotites and 
 basalts). This communication presents a synthesis of quantitative aquifer 
 parametrization\, covering both intrinsic properties (hydraulic transmissi
 vity and conductivity\, specific yield\, spring recession behaviour\, effe
 ctive groundwater velocity and kinematic porosity derived from tracer test
 s) and climate-related parameters including direct recharge and discharge 
 per unit area. It’s relevant\, for example\, the higher value of specifi
 c discharge (per unit outcropping area of the aquifer) of Pantano calcaren
 itic formation\, in the range 5-7 L/s on km2\, around twice respect to tur
 biditic deposits\, in the range 2-4 L/s on km2. These parameters serve as 
 critical inputs for hydrological modeling to determine sustainable withdra
 wal rates during droughts. Furthermore\, the findings and associated conce
 ptual models will contribute to the development of new guidelines for quan
 titative hydrogeological mapping\, coordinated and financed by ISPRA and a
 pplied to “Hydrogeological Sheet n°218 Castelnovo ne’Monti” which i
 s being carried out under the scientific supervision of the Hydrogeology g
 roup at the University of Bologna in collaboration with the Geological Sur
 vey of Emilia-Romagna region.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:A bird(hawk)’s eye view of Northern Apennines hydrogeology for a 
 quantitative assessment and mapping of sedimentary and ophiolitic fracture
 d aquifers - Elettra Cavana
URL:https://talks.osgeo.org/flowpath-2025/talk/XXM7PX/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-8KEUQS@talks.osgeo.org
DTSTART;TZID=CET:20250612T121000
DTEND;TZID=CET:20250612T122000
DESCRIPTION:Karst aquifers represent complex systems where groundwater flow
 s at different velocities through a network of secondary porosity structur
 es such as fractures and conduits. Their complexity comes from the interpl
 ay between geological and climatic factors\, as well as human activities\,
  like tapping springs and drilling tunnels\, which can significantly chang
 e flowpaths and discharge regimes.\nThe Gran Sasso aquifer\, one of the la
 rgest fractured and karstified aquifers in the central Apennines\, offers 
 a unique opportunity to study these phenomena thanks to the presence of dr
 ainage in highway tunnels\, drilled in the 1970s. These tunnels tapped app
 roximately 2 m³/s of groundwater directly under the preferential recharge
  zone\, providing access to peculiar hydrogeochemical conditions within th
 e aquifer. Recently\, to obtain information about hydrodynamic aspects of 
 the natural drainage and an updated hydrodynamic setup of groundwater flow
  related to recharge mechanisms\, the structural characterisation of both 
 surface and tunnels has been carried out\, integrating hydrogeochemical an
 d isotopic data from 27 drainage points along the tunnels.\nThe study reve
 als a complex mix of recharge mechanisms influenced by fractures and litho
 logy permeability. Major ions show minimal variation\, while isotopic resu
 lts identify four distinct flowpaths. These include fast infiltration via 
 fault zones\, the arrival of old water into the tunnel drainage\, represen
 ting the slow-flow aliquot\, interaction with Quaternary deposits\, and ra
 pid groundwater movement through karst systems. The findings also highligh
 t the role of Campo Imperatore's endorheic basin and fault zones in ground
 water recharge dynamics. The Gran Sasso aquifer can be used as a model for
  understanding fractured-karst systems under climatic and tectonic conditi
 ons similar to those in the Mediterranean\, offering insights into strateg
 ies for conserving high-quality drinking water in the context of climate c
 hange and anthropogenic pressure
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Hydrogeological Dynamics and Sustainable Management of Fractured an
 d Karstified Aquifers: The Gran Sasso Case Study (Italy) - Marco Petitta
URL:https://talks.osgeo.org/flowpath-2025/talk/8KEUQS/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-TVQANR@talks.osgeo.org
DTSTART;TZID=CET:20250612T122000
DTEND;TZID=CET:20250612T123000
DESCRIPTION:Accurate knowledge of groundwater availability and its variatio
 ns is essential for sustainable groundwater management. Within this framew
 ork\, the water balance serves as a valuable tool for assessing water reso
 urce availability. Currently\, management authorities require more precise
  evaluations of groundwater resources to address the growing demand for fr
 eshwater.\nIn this study\, the water balance was determined for the main h
 ydrogeological structures in the Central Apennines (Italy). The calculated
  outflows were compared with spring discharge data sourced from existing l
 iterature. Inflow data were collected over a six-year period (2018–2023)
 \, accounting for both rainfall and snow contributions. Unlike many previo
 us studies that focused only on liquid inflows from rainfall\, this resear
 ch properly evaluated snowmelt contributions using data from a recent netw
 ork of snow gauges. These contributions were incorporated into total preci
 pitation estimates to achieve more accurate results.\nFor each hydrogeolog
 ical structure\, monthly inflow datasets from rain gauges were interpolate
 d using regression equations and subsequently applied to the water balance
  assessment. An initial comparison of water balances\, estimated with and 
 without snowmelt data\, revealed that excluding snow contributions can lea
 d to significant underestimations of infiltration rates. Moreover\, a comp
 arison between calculated outflows—including snowmelt—and measured spr
 ing discharges demonstrated strong agreement for each investigated hydroge
 ological structure.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Evaluating the snowfall influence on the hydrological balance of Ap
 ennine mountain aquifers in Central Italy - Alessia Di Giovanni
URL:https://talks.osgeo.org/flowpath-2025/talk/TVQANR/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-LQ7EAS@talks.osgeo.org
DTSTART;TZID=CET:20250612T123000
DTEND;TZID=CET:20250612T124000
DESCRIPTION:In recent years\, the evaluation of water resources is acquirin
 g ever greater importance\nmainly due to the world population growth\, esp
 ecially in areas like the Mediterranean region\nwhere rainfall has shown a
  generally negative trend\, also characterized by shorter and even\nmore i
 ntense events. Furthermore\, the ever-increasing demand for high-quality d
 rinking water\nhighlights the importance of correct monitoring and careful
  management of the resource.\nThe area of the Sibillini Mountains National
  Park\, located in the central Apennines (central\nItaly)\, proves to be p
 articularly suitable for a quantitative study of the water resource due\nt
 o the excellent water quality widely exploited for drinkable uses.\nThis s
 ector of the Apennine ridge is characterized by suspended aquifers\, even 
 of large\ndimensions\, and by a deep basal aquifer hosted within fractured
  and karstied micritic limestones.\nThe monitoring\, in some cases for de
 cades\, of the discharges emerging from some important\nspring systems and
  of some river reaches that drain the waters circulating within the basal\
 naquifer has highlighted a constant and progressive decrease in stored wat
 er resources. This\nphenomenon\, as mentioned\, is certainly linked to the
  rainfall trend recorded in recent decades\nwhich\, especially concerning 
 the time of residence of the snowfalls on the ground\, has shown\na marked
  decrease. However\, the role played by the strong increase in forest cove
 r along\nthe recharge areas within the carbonate ridge over the last 50-60
  years is underestimated.\nThe lower inltration linked to the consumption
  of trees\, especially in the summer season\,\ncombined with the amount of
  precipitation lost through interception or evapotranspiration\nphenomena\
 , has been shown to reach values in places higher than 25-30%.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:GROUNDWATER RESOURCES DIMINISHING IN MOUNTAIN AREAS: ONLY CLIMATE C
 HANGE OR ALSO A "HIDDEN" CONSUMER? AN EXAMPLE FROM CENTRAL APENNINES (ITAL
 Y) - Francesco Lampa
URL:https://talks.osgeo.org/flowpath-2025/talk/LQ7EAS/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-VAUKP3@talks.osgeo.org
DTSTART;TZID=CET:20250612T134000
DTEND;TZID=CET:20250612T135000
DESCRIPTION:Upward saline groundwater (GW) seepage is provoking surface wat
 er (SW) canals to be salinized in a large\, reclaimed area of Po River low
 land (Italy)\, particularly in tile drained agricultural fields embodying 
 shortcuts among SW and shallow GW bodies. To identify salinization causes\
 , a continuous monitoring network of SW channels\, saturated and vadose zo
 ne (VZ) was established in two adjacent agricultural fields: the A1 field 
 plot\, mildly saline cultivated with maize and crossed by a paleochannel\;
  and the A2 field plot\, saline\, uncultivated and covered by salt toleran
 t weeds. \nThe VZ continuous monitoring allowed to identify capillary rise
  as major driver of soil salinity in A1 field\; in A2 additional salt is r
 eleased by roots decomposition after the mow. These findings were integrat
 ed with remote sensing data on vegetation health (SAVI) and water requirem
 ent (NDMI). \nPiezometers and drainage ditch continuous monitoring allowed
  to identify SW-GW relationships and saline sources in the aquifer/aquitar
 d lenses. \nFrequency domain analysis highlighted internal salinity dynami
 cs\, such as increased porewater salinity after mowing salt tolerant veget
 ation that increased temporary the EC up to 20 mS/cm. \nFinally\, measurem
 ents of water discharge and salt concentration at the outlet enabled a rel
 iable estimation of salt fluxes from tile drained agricultural fields\, sh
 owing that 70% of the total annual salt export (21±1.9 t/ha/yr) occurred 
 during sub irrigation periods. \nThe upward saline flux from GW\, together
  with the presence of halophilic vegetation fragments that slowly release 
 salts into porewater and help to maintain elevated concentrations in GW an
 d SW\, pose a serious threat for the SW resources that are used for irriga
 tion in these reclaimed lands\, especially considering the ongoing climati
 c change that are already stressing the Po River lowland.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Salt migration and export via subsurface irrigation in a saline rec
 laimed landscape of the Po River lowland (Italy) - Mattia Gaiolini
URL:https://talks.osgeo.org/flowpath-2025/talk/VAUKP3/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-PFFWC7@talks.osgeo.org
DTSTART;TZID=CET:20250612T135000
DTEND;TZID=CET:20250612T140000
DESCRIPTION:This study investigates the critical issue of salinity intrusio
 n within the Muravera coastal plain aquifer\, located in Sardinia (SW)\, I
 taly\, through a comprehensive hydrogeological investigation. An integrate
 d approach\, combining groundwater dating techniques\, multi-isotope analy
 sis (including ³H\, He\, CFCs\, SF6\, noble gases\, Sr\, and B)\, and tra
 ditional hydrogeological monitoring\, was employed to delineate distinct r
 echarge sources and groundwater flow paths. To mitigate errors associated 
 with seawater mixing\, age tracer and noble gas concentrations were calcul
 ated specifically for the freshwater fraction\, utilizing estimated concen
 trations for the saltwater component of each sample. Freshwater component 
 concentrations were derived through saltwater component estimations\, and 
 subsequent analysis using PANGA and TracerLPM software\, assuming a bimoda
 l mixing model\, yielded noble gas-derived recharge parameters and mean fr
 eshwater ages\, respectively. The combined tracer results revealed that se
 veral samples were influenced by a geogenic source of SF6 (potentially flu
 orite mineralization) and possible CFC contamination introduced during sam
 pling. Furthermore\, reliable ³H/³He ages could not be determined due to
  elevated terrigenic helium concentrations and/or apparent loss of tritiog
 enic ³He for undetermined reasons. Despite these challenges\, the age tra
 cers still provided valuable insights. The study identified four distinct 
 recharge sources\, including the previously uncharacterized Flumini Uri Ri
 ver\, which was found to be a significant contributor. Analysis of the pre
 modern seawater component revealed a high terrigenic helium-4 concentratio
 n\, exceeding 4 x 10⁻⁷ ccSTP/g\, consistent with groundwater ages exce
 eding 1000 years\, indicating extensive mixing with modern freshwater. The
 se findings offer crucial information for developing sustainable water res
 ource management strategies within this vulnerable coastal aquifer.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:The use of groundwater dating and isotopic analysis to characterize
  a coastal aquifer affected by saline intrusion - Chiara Porru
URL:https://talks.osgeo.org/flowpath-2025/talk/PFFWC7/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-TUPZ3H@talks.osgeo.org
DTSTART;TZID=CET:20250612T141000
DTEND;TZID=CET:20250612T142000
DESCRIPTION:Managed aquifer recharge (MAR) using treated effluent and storm
 water (TES) as source water is a vital strategy for sustaining urban aquif
 ers used for potable water supply in water-scarce regions. However\, conce
 rns exist about the adverse impacts on groundwater quality due to the intr
 oduction of emerging contaminants (ECs) typically present in TES. This stu
 dy aims to assess the impact of MAR on groundwater quality in the Atlantis
  Aquifer by investigating the occurrence and spatial distribution of ECs\,
  including pharmaceuticals\, pesticides\, and industrial chemicals. Twenty
  samples from MAR source water\, groundwater\, and surface water were coll
 ected and analysed for 289 ECs. Preliminary results showed the detection o
 f 120 compounds\, with MAR source water having the highest number of detec
 tions\, followed by MAR-impacted groundwater\, while naturally recharged g
 roundwater had the fewest. This pattern suggests that ECs are introduced i
 nto the aquifer through MAR\, that some ECs may be attenuated\, and that t
 here is a baseline level of contamination in naturally recharged groundwat
 er. Further analysis involving a three-tiered health risk assessment revea
 led that fewer than 10% of detected compounds pose potential health   risk
 s (RQ >1). To assess the aquifer’s capacity to naturally attenuate (via 
 biodegradation) ECs that pose potential health risks\, conventional water 
 quality indicators (e.g.\, nitrate\, dissolved oxygen\, manganese\, sulpha
 te) collected between 2018 and 2024 will be analysed. The findings will co
 ntribute to the development of an EC monitoring framework for the Atlantis
  Aquifer\, and by integrating EC monitoring into existing management pract
 ices\, this will enhance protection of both the resource and communities t
 hat depend on it.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Evaluating Emerging Contaminants in the Atlantis Aquifer’s Manage
 d Aquifer Recharge Scheme\, South Africa - Maposholi Mokhethi\, Reynold Ch
 ow
URL:https://talks.osgeo.org/flowpath-2025/talk/TUPZ3H/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-SMHWVL@talks.osgeo.org
DTSTART;TZID=CET:20250612T142000
DTEND;TZID=CET:20250612T143000
DESCRIPTION:Managed Aquifer Recharge (MAR) technique based on the Forested 
 Infiltration Area (FIA) is being tested to mitigate groundwater nitrate co
 ntamination\, due to intensive agricultural activity\, in a sandy aquifer 
 within the Nitrate Vulnerable Zone of Arborea (central-western Sardinia). 
 The research is being carried out within the NATMed project (https://natme
 d-project.eu/) (2023-2026)\, funded under the EU PRIMA Programme.\nThe FIA
  system is implemented in a pilot site of around 0.4 ha and it is supplied
  by drainage water with an average nitrate concentration of 70 mg L-1\, co
 ming from a nearby dewatering pumping station. The infiltration process oc
 curs through six recharge trenches\, with a total length of 300 meters and
  one meter deep\, placed between rows of Eucalyptus and Poplar trees. The 
 recharge water is treated before infiltration by a Passive Treatment Syste
 m (PTS) installed within the trenches. It consists of a mixture of Eucalyp
 tus wood chips (50% of volume) and inert material\, whose function is to p
 romote the denitrifying bacteria action\, reducing nitrate (NO3) to atmosp
 heric nitrogen (N2). Eventually\, when the PTS effectiveness is reduced an
 d the planting is fully developed\, denitrification will be sustained by s
 ymbiotic bacteria residing on the tree root systems.\nIn two years of hydr
 ogeochemical monitoring\, a noticeable reduction of nitrates up to 85% in 
 the infiltrating water and a significant decrease in groundwater nitrate c
 oncentration have been observed. These results suggest that the FIA techni
 que is an efficient Nature-Based Solution for decontaminating waters pollu
 ted by nitrates. However\, a considerable amount of soluble phosphate is r
 eleased by the PTS\, leading to an increase in the concentration of this p
 ollutant in groundwater. Laboratory and field tests on some materials able
  to remove phosphate before infiltration are ongoing\, with promising resu
 lts
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Forested infiltration Area (FIA) as Nature-based Solution to mitiga
 te groundwater nitrate contamination in the Nitrate Vulnerable Zone (NVZ) 
 of Arborea (Sardinia\, Italy) - Alberto Carletti
URL:https://talks.osgeo.org/flowpath-2025/talk/SMHWVL/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-LSZUNF@talks.osgeo.org
DTSTART;TZID=CET:20250612T143000
DTEND;TZID=CET:20250612T144000
DESCRIPTION:The Po River plain is experiencing groundwater resources declin
 e since the last two decades\, due to diminished recharge rates and ground
 water overexploitation. Additionally\, the elevated anthropogenic pressure
 s increase the likelihood of groundwater contamination. For instance\, Bre
 scia with more than 200k citizens and a widespread industrial area\, hosts
  many potential sources of groundwater pollution. The managed aquifer rech
 arge (MAR) technique is well-known to mitigate groundwater contamination a
 nd to replenish groundwater resources\; although MAR could trigger unwante
 d redox reactions\, like pyrite oxidation\, that must be evaluated before 
 to establish a MAR scheme. To quantify possible interactions among recharg
 e waters and the aquifer\, 2 cores were drilled in a sub-urban area to cap
 ture the lithological variability of the unconfined aquifer. To delineate 
 redox gradients within the aquifer\, vertical profiles of sediment cores w
 ere collected via Rhizon® samplers and analysed for TDS\, pH\, DOC\, majo
 r ions\, and trace elements. In addition\, 3 batches with 160 g of sedimen
 t and 800 ml of deionized water were set-up and monitored for 3 months. Pr
 e- and post-experimental characterisation of mineral phases was done via s
 equential extraction (SE). Stratigraphical cores were similar but not homo
 geneous\, with the most permeable layers constituted by sandy gravel layer
 s. Depth profiles of selected species delineated possible pollution source
 s from urban leakage\, although below admissible limits. SE suggested a >5
 0%±25 increase of Fe-oxides at shallow depths\, while no significant incr
 ease at the base of the aquifer. The batches and SE demonstrated that no s
 ignificant release of heavy-metal(loid)s was induced by the recharging wat
 er and the already present contaminants were diluted below admissible limi
 ts. The proposed framework could be employed to assess the feasibility of 
 MAR to assist tailored design solutions.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Quantification of driving redox reactions potentially induced by ma
 naged aquifer recharge in the suburban environment of Brescia (IT) - Nicol
 ò Colombani
URL:https://talks.osgeo.org/flowpath-2025/talk/LSZUNF/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-EKASRB@talks.osgeo.org
DTSTART;TZID=CET:20250612T144000
DTEND;TZID=CET:20250612T152000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:1-minute poster Session D - Chair: Dr. Daniele COCCA - 
URL:https://talks.osgeo.org/flowpath-2025/talk/EKASRB/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-XWNEP9@talks.osgeo.org
DTSTART;TZID=CET:20250612T152000
DTEND;TZID=CET:20250612T153000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Group photo - 
URL:https://talks.osgeo.org/flowpath-2025/talk/XWNEP9/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-HJPCWX@talks.osgeo.org
DTSTART;TZID=CET:20250612T160000
DTEND;TZID=CET:20250612T163000
DESCRIPTION:As part of a complex geological-hydrogeological survey\, the ka
 rst system in Budapest and its surroundings has been investigated includin
 g its hydrogeochemical and isotopic characterisation. Additionally\, the a
 im of this work was to support the 3D hydrodynamic flow and heat transport
  modelling by interpreted hydrogeochemical data which could be used for th
 e verification of the models.\nThis karst system is characterised by the p
 resence of different flow systems\, from local to regional and with hypoge
 nic karst developments shaped by discharging thermal karst waters. Based o
 n major chemical parameters and outflowing water temperature we could dist
 inguish two main clusters. Wells and springs mainly west of the Danube (We
 stern group)\, contain mainly CaMgHCO3 type waters\, with higher sulphate 
 concentrations in the south. Wells and springs along the Danube and to the
  east (Eastern group)\, have higher water temperatures and TDS\, and in so
 me cases higher sodium and chloride concentrations\, which show the presen
 ce of regional flow systems.  The Western group could be further divided i
 nto 4\, while the Eastern group into 6 subclusters.\nBased on stable oxyge
 n and hydrogen isotope data the karst water is mainly of meteoritic origin
 \, although a very small brackish or seawater component cannot be excluded
 . Based on radiocarbon data the residence times of these karst waters are 
 at least 20 to 30 ka. The thermal component is of Pleistocene origin\, whi
 le the cold karst waters infiltrated during the Holocene. Some of the spri
 ngs and wells contain detectable tritium\, showing that these waters conta
 in a modern precipitation component detected in the cold karst waters and 
 in the discharge zones.\nAnalysis of groundwater samples from a recently f
 inished campaign including a wide range of stable and natural radioactive 
 isotopes will contribute to a better characterization of these karst water
 s enabling a better understanding of their mixing in the discharge zones.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:The role of hydrogeochemistry and isotopes in understanding the kar
 stic system in Budapest and its surroundings - Teodóra Szőcs
URL:https://talks.osgeo.org/flowpath-2025/talk/HJPCWX/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-MHU8DG@talks.osgeo.org
DTSTART;TZID=CET:20250612T164000
DTEND;TZID=CET:20250612T165000
DESCRIPTION:The Piedmont Plain (NW Italy) is characterized by a shallow phr
 eatic aquifer\, overlying a deep confined/semiconfined aquifers\, the latt
 er are essential for the supply of drinking water. \nThe aim of this study
  was to analyze the trends (period 2000–2021) in the main physicochemica
 l parameters (electrolytic conductivity (EC)\, pH) and main ions (Ca\, Mg\
 , HCO3\, Na\, Cl\, NO3 and SO4) in 70 wells in the deep aquifers in order 
 to identify the ongoing processes. The temporal distribution of threshold 
 exceedances for the sum of pesticides was also evaluated. The interaction 
 with shallow aquifers was evaluated comparing the average concentrations f
 or the main ions between shallow and deep aquifers and evaluating the tren
 ds of the Saturation Index (SI) of calcite. Additionally\, the temporal tr
 ends of ion exchange (Ca+Mg/Na index) were evaluated to highlight the cont
 ribution from silty-clayey layers\, which represent the less permeable por
 tions of the deep aquifers.\nResults highlight relevant increasing trends 
 for EC\, Ca\, Mg and Cl in 57-69% of the monitored wells\, and increasing 
 trends for HCO3 and Na in 41-46% of the monitored points. Decreasing trend
 s exist for 3-10% of the monitored points. SO4\, NO3 and pH show heterogen
 eous trends. The sum of pesticides shows greater exceedances of the thresh
 old values in the most recent period compared to the previous one. The tem
 poral trends of ion exchanges reveal the presence of trends in 61% of moni
 tored wells.\nAverage concentrations in shallow aquifers show higher value
 s than in deep aquifers. The decreasing trends of Calcite SI confirm the i
 nteraction between aquifers.\nThese results suggest an increase in the flo
 ws from the shallow aquifers to the deep aquifers and an increased contrib
 ution from silty-clayey layers of the deep aquifers. These processes are c
 onsistent with excessive withdrawal from deep aquifers. \nIn conclusion\, 
 the existence of impacting and worrying processes at a regional scale were
  defined.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Exchanges between deep and shallow aquifers  in the Piedmont Po Pla
 in (NW Italy): a hydrochemical approach with groundwater chemical trends a
 nalyses - Daniele Cocca
URL:https://talks.osgeo.org/flowpath-2025/talk/MHU8DG/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-PFZLGW@talks.osgeo.org
DTSTART;TZID=CET:20250612T165000
DTEND;TZID=CET:20250612T170000
DESCRIPTION:Geogenic arsenic (As) contamination is a known issue affecting 
 groundwater quality worldwide. In heterogeneous aquifers\, As mobility res
 ults from complex physical and geochemical interactions. Extensive monitor
 ing data are required to reliably assess these underlying processes and th
 e natural As heterogeneity. However\, effective groundwater characterizati
 on is often hindered by limited data availability\, high monitoring costs\
 , and resource constraints. This study exploits an alternative source of g
 eochemical information\, aggregating data from monitoring wells of sites u
 nder remediation\, a pervasive network widespread in urbanized areas. We p
 reviously demonstrated that\, when properly processed to remove anthropoge
 nic influences\, these data can provide meaningful insights into groundwat
 er’s pristine composition. We developed a random forest model to predict
  the probability of As concentrations exceeding the 10 µg/L regulatory th
 reshold. The method was applied to the shallow aquifer of Ferrara province
  in the Po Valley (northern Italy)\, a highly anthropized region with know
 n geogenic As issues. Here\, local assessments of As natural background le
 vels are often required to distinguish geogenic from anthropogenic source 
 of contamination in remediation procedures\, since provided regional-scale
  assessments lack sufficient resolution. Our model identified areas with h
 igh probability of As exceeding 10 µg/L\, mostly close to the Po River de
 lta. As mobilization was linked to natural processes driven by the stratig
 raphic architecture of the area: widespread peat deposits promote redox re
 actions associated with organic matter degradation\, leading to the reduct
 ion of Fe/Mn oxides originating from Apennine sediment sources. This study
  provides a useful tool for groundwater management\, improving chemical co
 mposition knowledge through an integrated approach\, relevant for both loc
 al-scale decision-making and large-scale groundwater quality assessments.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:A machine learning model trained on data from sites under remediati
 on to predict geogenic arsenic distribution in shallow groundwater - Laura
  Landi
URL:https://talks.osgeo.org/flowpath-2025/talk/PFZLGW/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-F8ZTXG@talks.osgeo.org
DTSTART;TZID=CET:20250612T170000
DTEND;TZID=CET:20250612T171000
DESCRIPTION:Groundwater environmental objectives in Europe are defined by t
 he Water Framework Directive (2000/60/EC) and the Groundwater Directive (2
 006/118/EC)\, based on contaminant thresholds and considering Natural Back
 ground Levels (NBL) when appropriate. NBL represents the boundary between 
 natural processes and anthropic impact\, and defines the targets for remed
 iation in polluted sites.\nThe Sacco River Basin (1530 km²\, Latium\, Ita
 ly) includes a contaminated “Site of National Interest”\, 72.35 km² w
 ide. Anthropic pressures are widespread within the basin (e.g. industrial 
 sites\, transport infrastructures\, landfills). Geogenic arsenic (As)\, ir
 on (Fe)\, and manganese (Mn) can be mobilized in anoxic conditions into gr
 oundwater by biogeochemical processes.\nThis research aims to define the N
 BL for As\, Fe\, and Mn in the different lithologies (alluvial deposits\, 
 volcanic rocks\, travertines) using a multidisciplinary approach. The curr
 ently ongoing groundwater sampling targets the low-impact areas to get a s
 et of concentration values associable exclusively to geogenic processes. G
 roundwater levels\, chemical-physical parameters\, inorganics\, dissolved 
 organic carbon\, isotopes (δ18O\, δ2H\, δ13C\, and 87Sr/86Sr)\, and mic
 robial properties were analyzed. \nPreliminary results show that the highe
 st Fe (201-1988 μg/L)\, As (38-55 μg/L)\, and Mn (55-406 μg/L) levels a
 re related to reducing conditions in peat-rich alluvial sediments and\, to
  a minor extent\, to volcanic formations. Cell abundance is in the range o
 f 10^3-10^4 cells/mL with predominance of cells with low nucleic acid cont
 ent\, as reported in oligotrophic environments. Furthermore\, microbial re
 spiration suggests higher metabolism and functional diversity of microbial
  communities in the alluvial facies. Our findings contribute to a more acc
 urate assessment of natural versus anthropogenic influences\, ultimately s
 upporting the development of effective groundwater management and remediat
 ion strategies in contaminated sites.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Natural geochemical background levels in groundwater of large-scale
  contaminated sites - Andrea Cisternino
URL:https://talks.osgeo.org/flowpath-2025/talk/F8ZTXG/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-9NTKQP@talks.osgeo.org
DTSTART;TZID=CET:20250612T171000
DTEND;TZID=CET:20250612T172000
DESCRIPTION:Groundwater remediation of LNAPLs (Light Non-Aqueous Phase Liqu
 ids) has advanced with improved models for multi-phase flow and contaminan
 t transport\, essential for mapping out contaminant plumes and formulating
  remediation plans. While LNAPL models simulate how LNAPL interacts with w
 ater\, air\, and soil\, their use is limited by specific site conditions\,
  data access\, and expertise level. Geological variations\, like confining
  layers and barriers\, must be considered as they affect LNAPL flow.\nAccu
 rate subsurface evaluation is pivotal\, with LNAPL transmissivity measurem
 ent proving superior to traditional monitoring for assessing contamination
  and predicting remediation systems' efficacy. New refined computational t
 echniques in modeling offer a precise representation of complex interactio
 ns between LNAPL\, water\, and air and pinpoint the boundaries between the
 se fluids and improve parameter estimation through data integration. Moreo
 ver\, joining geostatistical methods with physical models has made simulat
 ions of LNAPL spread more realistic\, and the integration with Geographic 
 Information Systems (GIS) enhances the analysis and depiction of contamina
 tion over time. \nWhile sophisticated models offer detailed predictions\, 
 their utility in practice is contingent on validating assumptions through 
 field data\, simplifying model complexities for interpretability\, and ens
 uring stakeholders' comprehension of model outputs. Environmental professi
 onals must navigate the trade-off between model sophistication and operati
 onal feasibility\, ensuring that the application of such models ultimately
  serves the goal of effective and sustainable LNAPL remediation.\nThis abs
 tract advocates the need for regulatory acceptance of LNAPL transmissivity
  as a closure criterion\, and for elaborating on best practices that can b
 ridge the gap between theoretical modeling and field application. By doing
  so\, it furthers our collective capacity for informed decision-making in 
 LNAPL-impacted site management.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Practical Application of Advanced LNAPL Multi-Phase Modeling in Gro
 undwater Remediation - Mara Meggiorin
URL:https://talks.osgeo.org/flowpath-2025/talk/9NTKQP/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-SHNWMY@talks.osgeo.org
DTSTART;TZID=CET:20250612T172000
DTEND;TZID=CET:20250612T173000
DESCRIPTION:Groundwater is the main source of water supply in the Dosso reg
 ion which is located in the southwestern part of the Iullemmeden Basin in 
 Niger republic (West Africa). Despite the arid to semi-arid climate that c
 haracterizes this region\, groundwater recharge is occuring mainly through
  rainfall. This recharge of water which is an essential element in the hyd
 rological cycle is prefentially done according to zones which can also be 
 vulnerable to groundwater pollution. The main objective of this study is t
 o identify and mapped the potential recharge areas. A methodology based on
  a multicriteria analysis integrating GIS and remote sensing was used to m
 ap the potential recharge areas. After processing the Landsat satellite im
 ages of Dosso region\, all the parameters influencing the hydrological rec
 harge processes were obtained and integrated into GIS. \nThese parameters 
 are: soil types\, land cover\, fracture density\, drainage density\, litho
 logy and slope. The map of potential recharge areas obtained shows that th
 e majority of the study areas has great recharge potential. According to t
 his study\, this great potentiality could be linked to: the sandy nature o
 f the soil\, the cultivable areas\, the presence of fractures and density 
 of hydrographic network. This map also confirmed that areas with high rech
 arge potential are located in the beds of ponds and "dallols" (wide dry va
 lleys)\, which thus become more vulnerable areas. This map of potential re
 charge areas constitutes therefore a tool for decision makers.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Identification and Mapping of groundwater Potential Recharge Areas 
 in the Dosso region (Southwestern of Niger) by using Multicriteria Analysi
 s Method - ABDOU ALI Ibrahim
URL:https://talks.osgeo.org/flowpath-2025/talk/SHNWMY/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-QLKYYE@talks.osgeo.org
DTSTART;TZID=CET:20250612T173000
DTEND;TZID=CET:20250612T174000
DESCRIPTION:The SentinelSpringS project aims to establish cost-effective\, 
 inclusive\, and sustainable monitoring and modelling solutions to preserve
  the crucial role of springs in supporting vulnerable ecosystems that depe
 nd on groundwater. Key research questions include addressing the lack of l
 ong-term and real-time monitoring data through standardised data collectio
 n protocols and characterising the sustainability of spring-dependent ecos
 ystems. Here we introduce efforts toward a new European onshore and offsho
 re spring information platform and map viewer enabling open access to real
 -time monitoring data on spring quantity and quality potentially including
  geogenic elements and relevant pollutants such as nitrate and pesticides.
  The information platform can encompass data on the impacts of emerging co
 ntaminants\, water over-abstraction\, land use change and invasive species
  on spring water chemistry and the characteristics of biological communiti
 es. Additionally\, it contributes to assessing the influence of climate ch
 ange on spring discharge and nutrient loadings\, highlighting critical kno
 wledge gaps in understanding climate-related vulnerabilities in spring-dep
 endent aquatic and terrestrial ecosystems. The spring information platform
  will enhance our understanding of the hydro-ecological functioning of spr
 ings and aquatic ecosystems and their vulnerability to temperature changes
  and the broader impacts of climate change.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Towards a European sentinel springs information platform with real-
 time monitoring of groundwater quantity and quality - Klaus Hinsby
URL:https://talks.osgeo.org/flowpath-2025/talk/QLKYYE/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-RKX9E8@talks.osgeo.org
DTSTART;TZID=CET:20250612T174000
DTEND;TZID=CET:20250612T175000
DESCRIPTION:This research on gender and hydrogeology examines the  represen
 tation\, barriers and experiences of women in the field. Statistical data 
 reveals clear gender inequality. In 2010\, the IAH in Italy had 67 male me
 mbers (M) and only 7 female members (F) (9%). By 2024 IAH membership had g
 rown to 231\, with 32% being F\, indicating progress\, but persistent unde
 rrepresentation in senior academic roles.\nAmong academic members\, few F 
 have achieved full professorships. Compared to 12 M full professors and 6 
 retired M full professors\, there is only 1 F full professor and 1 retired
  F full professor in IAH Italy. Bibliometric indices for F associate profe
 ssors are the same as those of their M counterparts\, with a median H-inde
 x value of 16. For researchers\, median H-index values for M are higher th
 an the F median (16 vs 10). However\, the 2 F full professors in the assoc
 iation have H-indexes significantly higher than the M median\, highlightin
 g the greater contribution required to achieve the same position. Indeed\,
  the underrepresentation of F in senior academic positions remains a press
 ing issue that needs attention.\nWomen in geological research face challen
 ges including: discrimination in securing employment\; discrimination thro
 ughout their career progression\; prejudice linked to motherhood affecting
  visibility and participation of younger F researchers. Their absence from
  the workplace and lower participation in activities like field trips and/
 or summer schools is often tied to societal expectations and family respon
 sibilities. Instead of receiving support during these crucial career phase
 s\, F researchers may find M colleagues using these opportunities to advan
 ce their own careers.\nF hydrogeologists are often overlooked\, marginaliz
 ed or ignored\, despite their significant contributions. To close the gend
 er gap\, it is crucial to recognize and highlight the valuable input that 
 women bring to the field of hydrogeology\, ensuring they receive deserved 
 acknowledgment and opportunities.
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:The Role of Women in Hydrogeology Research in Italy (IAH Members) -
  Daniela Ducci
URL:https://talks.osgeo.org/flowpath-2025/talk/RKX9E8/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-7DAWRJ@talks.osgeo.org
DTSTART;TZID=CET:20250612T175000
DTEND;TZID=CET:20250612T182000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Closing session + ceremony awards - 
URL:https://talks.osgeo.org/flowpath-2025/talk/7DAWRJ/
END:VEVENT
BEGIN:VEVENT
UID:pretalx-flowpath-2025-9JVQQB@talks.osgeo.org
DTSTART;TZID=CET:20250612T200000
DTEND;TZID=CET:20250612T230000
DESCRIPTION:
DTSTAMP:20261016T015004Z
LOCATION:Room R3
SUMMARY:Gala dinner @ Esperia Restaurant - 
URL:https://talks.osgeo.org/flowpath-2025/talk/9JVQQB/
END:VEVENT
END:VCALENDAR