Pacific Geospatial Conference 2022

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09:00
09:00
50min
Opening Ceremony
Plenary Theatre
09:00
50min
Opening Ceremony

Permanent Secretary for Land and Mineral Resources Fiji - Raijeli Taga

Plenary Theatre
09:50
09:50
20min
Keynote - Dr Soumya Banyopadhyay, Associate Director Earth Observation and Disaster management Indian Space Research Organsiation
Dr Soumya Banyopadhyay

Earth Observation for Climate Change Studies
Climate change is unambiguously the greatest environmental challenge being faced by global
community in the 21 st century. The consequences of a warming climate are far-reaching,
affecting fresh water resources, global food production, human health and sea levels.
Worldwide focus on climate change is very high on geopolitical and economic agendas with
worsening impacts predicted for the natural environment and society for generation to come.
Earth observation from space and geo-spatial technologies are the valuable tools for synoptic
and time series monitoring of the earth system as a whole – its weather, climate, oceans, land,
geology, natural resources, ecosystems and natural and human-induced changes. The
advances in satellite technology in terms of high spatial, temporal and spectral resolutions,
payload sensor bands with enhanced radiometry have made satellite data an indispensable
component in climate research and dynamic modelling.
Studies related to environment and climate research with a specific focus on events and
processes influencing the climate change are being carried out in India. These include
monsoon rainfall trends, glacier melting, alpine vegetation shifts, coral bleaching for
assessing impacts due to rise in atmospheric temperature. Further, the studies such as
wetland mapping, mangrove inventory, desertification and land degradation mapping etc.,
provide detailed understanding on environmental consequences due to climate change.
Recognizing requirements for scientific information on climate change issues; ISRO has been
providing the vital information on various geophysical parameters through a network of
INSAT, Oceansat, Resourcesat, and Cartosat series of satellites. A dedicated and multi-
institutional program, National Information system for Climate and Environment Studies
(NICES) program, was established to disseminate geophysical products and essential climate
variables pertaining to terrestrial, ocean and atmosphere through NICES web-portal of ISRO.

Plenary Theatre
10:10
10:10
20min
Keynote - James Movic

James Movic is the Director General of the Pacific Data Fusion Centre

Plenary Theatre
10:30
10:30
10min
Group Photo
Plenary Theatre
10:40
10:40
10min
Morning Tea
Plenary Theatre
10:40
2min
iTauki Land Trust Board

iTauki Land Trust Board Introduction Video

Plenary Theatre
10:44
10:44
2min
International Society for Photogrammetry and Remote Sensing

International Society for Photogrammetry and Remote Sensing Introduction video of the organisation by Lena Halounova, President

Plenary Theatre
10:50
10:50
20min
The Pacific Islands GIS and Remote Sensing Newsletter, three Decades of History, Function today and Future
Wolf Forstreuter

The first GIS and RS Newsletter was published in 1993 and distributed in Fiji. There was a need
for a regular information platform as there was no Fiji medium (i) to report and document the
monthly GIS&RS User Meeting, (ii) to distribute new developments in the areas GIS, RS and
upcoming GPS applications, (iii) to report about data available in Fiji.
The Newsletter started as a simple print out of a WordPerfect written A4 document edited by Wolf
Forstreuter and Les Allinson. In 1994 SOPAC’s Director supported the Newsletter with professional
staff and Lala Bukarau joining the team. James Britton (USP) joined the newsletters working group
in 1998. During the time users of other Pacific states were interested in the newsletter where
SOPAC printed and posted to most Pacific Island Countries.
Shortly afterwards, a network was established of national focal points. The newsletter was then
produced in bigger quantities posted to the focal points and from there distributed to subscribers in
the corresponding country.
With the better internet access in Pacific Island Countries the postal delivery to the countries was
stopped and the new editions of the newsletter were only announced through GIS-PacNet, the
Pacific email network for GIS and Remote Sensing related issues. The user then had to download
the newsletter from SOPAC’s and later SPC’s website.
Even with availability of social networks through which information can be distributed fast and
efficient the newsletter still has important functions today: (i) The newsletter has an ISSN
registration and an article of a GIS&RS user in a Pacific Island Country is documented as a
publication. Pacific GIS&RS users have often difficulties to get their first publication out. (ii) The
newsletter is the only documentation showing the 30 years of GIS and Remote Sensing
development in Pacific Island Countries. There are already several cases where the newsletter
documented that the potentially new GIS or Remote Sensing application was already tested or
even applied before.
The last newsletter team was facing problems of limited time availabe. The team has changed and
there will be more time for the newsletter now. In addition, the team will concentrate on the two
mentioned functions of the newsletter. It is planned to have a database available on the PGRSC
website allowing to search for articles, authors and key words referring the Pacific GIS and Remote
Sensing applications.

State of the Pacific
Plenary Theatre
11:10
11:10
20min
What we've been upto at Samoa's GIS & RS User Group
Tooa Brown

Sharing my experience as the President of Samoa's GIS & RS User Group. I will discuss our key activities since we offically launched in Nov 2021 following the Samoa Hub FOSS4G SoTM Oceania Conference 2021. I will also be talking about the key challenges and successes that our GIS community in Samoa have experienced. We are keen to learn from around the Pacific region in setting a GIS community and ways we can improve going forward !!!

State of the Pacific
Plenary Theatre
11:30
11:30
20min
The future of earth observations for Pacific Island nations
Rafael Kargren

Satellites are transforming the way we see – and map – the Earth. That's especially the case in the Pacific where islands nations can benefit from satellite services – Earth Observations (EO) – to understand and manage the environment.

State of the Pacific
Plenary Theatre
11:50
11:50
10min
Video Presentations
Plenary Theatre
11:50
5min
Meta's Open Geospatial Tools
Edoardo Neerhut

Video Presentation

Plenary Theatre
12:00
12:00
45min
Lunch
Plenary Theatre
12:45
12:45
20min
Implementing and using an open source farm survey and mapping system
Ahi Saipaia

This talk will discuss how the Ministry of Agriculture, Food, and Forests, Tonga (MAFF), developed and adopted a workflow to: i) map and survey agricultural landscapes using the mobile GIS application, QField, and ii) manage and analyse geospatial datasets collected using QField for reporting and decision making. The talk describes the workflow including the software components QField for data collection, QFieldCloud for user and data management, and dashboards and web maps for reporting and analysis. The process MAFF’s extension division went through to transition from paper-based data collection and manual data entry to digital spatial data collection will be described. The challenges and successes of implementing a digital spatial data collection workflow will be discussed. Finally, examples of how MAFF have used this workflow will be presented including: national scale crop surveys, mapping the conditions of key commercial crops, and conducting damage assessments after the Hunga Tonga-Hunga Ha’apai eruption.

Resource Management
Plenary Theatre
13:05
13:05
20min
Using Area Based Management Systems (ABMS) as a buffer from the effect of climate change.
Kasaqa Tora

Climate change is a pervasive and growing global threat to biodiversity and ecosystem services. Such threats include shifts in the distribution of species due to fragmentations.These two drivers of change may act in synergy, with particularly disastrous impacts on biodiversity. Protected Areas (PAs)thus represent crucial buffers against the compounded effects of climate change and habitat loss
PA is a clearly defined geographical space, recognised, dedicated, and managed, through legal or other effective means, to achieve the long-term conservation of nature with associated ecosystem services and cultural values.
In the Pacific, protected areas encompass more than just national parks and other areas established by central governments, which includes locally designated and managed areas receiving some level of protections of its natural resources and the environment. These consist of large areas of Natural forests, watershed areas and intact reef systems, which act as buffer against the effect of climate change such as flooding and coastal erosions and sources of food and medicines to the surrounding communities. Importantly, these areas also provide ecosystem services such as clean drinking water, clean air and most importantly habitat for important species of plants and animals.
The work that’s being done at the Secretariat of Pacific Regional Environment Programme (SPREP) is supporting these high value areas, continue to provide those ecosystem services and buffer against the impact of climate change. These ongoing supportsare possible through the data infrastructure that’s available atSPREP. These platforms provided access to Geospatial information and outputs that continues to support and inform better environment management of these high value areas continued to perform its functions.

Resource Management
Plenary Theatre
13:45
13:45
20min
Pacific Rainwater Harvest Using Spatially Enhanced Image Data
Monifa Fiu, Wolf Forstreuter, Darlynne Takawo

Due to climate change longer periods of droughts are quite possible for small Pacific islands States
especially where the ground water lens has limitations. It is essential to predict in time when an
island community, depending on rainwater harvest, will run out of water.
The SPREP based project of “Impacts Assessment of Past Climate Change Adaptation Actions”
investigates and supports rainwater harvest activities in Palau, Federated States of Micronesia and
Tonga. The average water consumptions per person is a known figure for nearly all islands. The
rainfall of the last weeks and the prediction for the next weeks can be delivered by weather
forecast with increasing accuracy. The actual and potential rainwater harvest capacity is currently a
figure which needs to be monitored, needs to be more accurate and in some cases even needs to
be established.
All projects have the same rainwater harvest elements which have to be documented: (i) the
capacity and quality of rainwater storage tanks, (ii) the availability and quality of gutter and
downpipes and (iii) the catchment area. Rainwater tanks and the link to the catchment (roof) in
form of gutter and downpipes are already surveyed by local field teams. However, it is also
important to have exact figures of the roof area catching the water. If these three elements are
available as reliable figures the shortage of households or communities can be predicted through a
simple database application.
To get accurate figures for the roof areas it was planned to send a team equipped with a drone and
corresponding GNSS equipment to the outer islands. However, new satellite image data proofed to
be a better solution.
Satellite image data of 30 cm spatial resolution were enhanced by a Pacific company to 15 cm for
cost which were far below of the cost sending a team. The satellite images can be directly utilised
in GIS environment and allow a very accurate mapping of the roofs with subsequent calculation of
the roof area.
The application of spatially enhanced satellite image data for the calculation of water catchment
area could be copied in other Pacific Island Countries.
Rainwater

Resource Management
Plenary Theatre
14:05
14:05
20min
Disaster Resilience Using Agile Aerospace from Planet
Baizura Alidin

Planet provides geospatial insights at the speed of change, equipping users with the data necessary to make informed, timely decisions. We offer a diverse selection of imagery and analytic solutions, all made available online through our platform and web-based tools. From agriculture and emergency response to natural resource protection and security, we believe that timely, global imagery and foundational analytics will empower informed, deliberate, and meaningful stewardship of our planet.

Resource Management
Plenary Theatre
14:25
14:25
20min
Investigating the capability to map invasive species in the Pacific
Carrol Chan

This talk will highlight the capability and capacity to integrate remote sensing as a feasible tool for mapping invasive species in the region. An emphasis will be on the current trends of the invasive species mapping and current work undertaken in the study - looking at species distribution modelling and identifying phenological changes from time-series Sen2 imagery.

Resource Management
Plenary Theatre
14:45
14:45
10min
Afternoon Tea
Plenary Theatre
15:00
15:00
20min
Koordinates - a platform for geospatial data, built on open
Hamish Campbell, Jonathan Ball

A walk-through of new software from Koordinates, allowing your organisation to truly embrace collaborative data management. We will demonstrate a range of workflows and tasks using the Koordinates App, cloud and plugins, to allow frictionless data collaboration between teams, promote data discoverability within an organisation, and deliver your authoritative data into the software environments you are already succeeding in.

Open Source and Open Data
Plenary Theatre
15:20
15:20
20min
Open source spatiotemporal databases (Postgres with PostGIS and TimescaleDB)
Brent Wood

NIWA, (the New Zealand National Institute of Water and Atmospheric Research) runs a database with over 30 years of sensor data collected on its deepsea research vessel Tangaroa. We recently developed a new database to address performance issues accessing around 600 million readings. The new database is based on PostgreSQL, uses PostGIS to support spatial data management with TimescaleDB to support the temporal aspect. This new database has exceeded expectations, with response times in 10's of milliseconds on basic server infrastructure.

The presentation will introduce PostgreSQL and the extensions we used to create the system (PostGIS, TimescaleDB and hstore), as well as presenting QGIS as a real time client accessing the data.

It will be of interest to anyone interested in managing sensor data, including vehicular, climate, atmospheric, hydrometric, etc.

Open Source and Open Data
Plenary Theatre
15:40
15:40
20min
Wrangling Open Pacific Elevation and Bathymetry Data with GDAL and PDAL
James Ford

Elevation and bathymetry are key datasets for resilience, navigation, and risk modelling. The Pacific is home to a number of open elevation and bathymetry datasets which come in a variety of forms and formats. This talk will cover some approaches to pre-process and unify these datasets using GDAL, PDAL, and python.

Open Source and Open Data
Plenary Theatre
16:00
16:00
20min
SWPHC - Open Data Value Proposition
Jonah Sullivan, Pip Bricher

The Southwest Pacific Hydrographic Commission is developing a Value Proposition document to assist IHO member states to understand the inherent value of the data they hold and the ways this value can be extended by sharing the data using open platforms.

Open Source and Open Data
Plenary Theatre
16:20
16:20
20min
Stylized COGs: Utilising QGIS to develop stylized zoom scales in a Cloud Optimised Geotiff
Ian Reese

Web mapping is experiencing the loss of reliable editing and tiling software for stylized raster tiles. Editing tools like Tilemill are nearly a decade out of service, and tiling tools like gdal2tiles are focused on singular inputs to create tile caches. A reliable tool, with the capabilities to develop style rules at zoom scales for multiple raster datasets and deliver these for online use, is missing in the modern web mapping suite. This presentation puts forward a novel approach to modern raster tiling: utilising QGIS as a styling editor and the Cloud Optimised Geotiff (COG) format as a pseudo raster tile. From this, users will learn a contemporary method to base mapping, creating COGs as stylized raster tiles, and implementing them in a genuinely serverless solution.

Open Source and Open Data
Plenary Theatre
16:40
16:40
5min
An introduction to Digital Earth Pacific (DEP) - for earth observation and analyses
Nicholas Metherall

A remote sensing needs assessment conducted across 4 countries highlighted the value of a platform to enable both technical and non-technical GIS and remote sensing users to access and make use of earth observation data including satellite imagery and modelled output data. In response to this need, Digital Earth Pacific (DEP) functions as an online platform that provides both a front-end graphical user interface (GUI) for imagery browsing applications and a back-end python notebook environment for a wide range of analysis and research applications. The platform will be an open-access tool to be used without cost. It is intended that the DEP will provide access to both analysis ready data inputs as well as decision informing information products.

This lightning talk provides a high-level overview of DEP. The presentation will include an overview of both the front and back-ends of DEP as well as and a number of examples use cases for Pacific Island Countries (PICs). The use cases are examples of how users can better leverage satellite imagery, analyses and models. These examples include land cover and land use change (LULC) analyses, coastline change detection, monitoring of extractive industries (logging and mining), crop monitoring and topography data generation.

Through this talk, listeners will gain an understanding of the background of DEP as well as the key examples of how it can be used to support their learning, work and research projects.

Remote Sensing
Plenary Theatre
16:45
16:45
5min
How tropical cyclone induced damage will influence the distribution of African Tulips in Fiji.
Shiva Nair

The presence of invasive plant species in an ecosystem poses a great threat to the existence of native plant biodiversity. These invasive plants are either accidentally or deliberately
introduced by humans into a non-native environment for various reasons, one such example is the African tulip tree (Spathodea campanulata) also known as the Flame of the Forest that was
deliberately introduced in Fiji as an ornamental plant in 1936. Since then, it has invaded the majority of the forests and agricultural areas and has aggressively outgrown the native trees of
Fiji. The dominant explanation for the trend in spread is its invasive characteristics such as the ability to tolerate a wide range of environmental conditions, the ability to produce thousands
of wind-borne seeds each season, and vegetative propagation. Previous research has briefly emphasized how naturally disturbed areas in the forest ecosystem could present an opportunity
for the African tulip to colonize new territories. It has also been highlighted that the intensified effects of the tropical cyclone could be a significant catalyst for changes and disturbances in
the forest ecosystem. However, it has yet to be determined how the pattern of the African tulip spread in Fiji is being affected by large-scale disturbances such as Category 4 & 5 tropical
cyclones. So, this research will make use of WorldView-2 (WV-2) satellite imagery and the
Quantum Geographic Information System (QGIS-3) to determine whether tropical cyclone-induced disturbances that result in mass clearing of the forest cover are influencing the expansion of the African tulip tree into new plant communities. Finally, the findings of this
research can be used by Fiji and other Pacific Island Countries (PICs) to build/improve the effectiveness of various management strategies.

Protecting the Pacific
Plenary Theatre
16:50
16:50
5min
PacRIS geospatial and Digital Earth Pacific remote sensing inputs into RiskScape models: quantifying an economic cost of flood inundation natural hazards.
Nicholas Metherall

Risks associated with the recurring climate patterns of La Niña and El Niño Southern Oscillations (ENSO) and the displacement of the monsoon trench have correlated with higher variability in rainfall and conditions conducive to cyclone formation in the Southern Pacific. At a local level this often translates to increased risks for floodplain communities. Alongside climate risks, complex land cover and land use changes in the Ba River Catchment exacerbate risks to streambank and floodplain communities. The expansion of agriculture, mining, industry and urbanisation extending to the edges of the banks of the Ba River has led to land degradation and loss of riparian vegetation buffer zones, contributing to changes in the streambed channel with implications for flood risk throughout the town and residential areas along the river. These land use dynamics have influenced the vulnerability of settlements to multiple hazards including floods, storm surges and cyclones. According to Yeo, there have been 32 flood events from 2002 to 2014 or an average of one flood every 3.8 years (2007, 2015). This means there have been a total of 34 flood events in the Ba River Catchment from 1892 to the current day in 2022. In conjunction with remotely sensed satellite data inputs, RiskScape can be used to assess the magnitude and scope of the risk of these multiple hazards within the Ba River Catchment. This can include quantifying the potential economic loss and damage of multiple hazards from flood-inundation at different asset ‘exposure’ locations. RiskScape can support in quantifying maximum loss, loss exceedance and average annual loss.

Climate Resilience
Plenary Theatre
16:55
16:55
5min
Women in GIS in the Pacific
Adarshika Prakash

GIS for some reason is seen as a male dominant Job and women in this field are looked down. That actually wasn't the case when I was at USP studying this course. There was a huge number of Women from the Pacific that took this course up and passionately worked on various areas of concern. GIS has a huge scope with spatial analyst, programmer and cartography so there was never day we were bored. At this point I am so interested in using my skills gained in GIS to help in areas and work of Climate change experts. I am still looking out on ways to get that opportunities but its really has huge scope and Women of the Pacific are a greater part of the cause.

Community and Diversity
Plenary Theatre
17:00
17:00
90min
Opening Cocktail
Plenary Theatre
09:00
09:00
40min
Keynote - Vasiti Soko

Vasiti Soko, Disaster Management and Open Data

Plenary Theatre
09:20
09:20
30min
Keynote - Meizyanne Hicks

Meizyanne Hicks, Director Geospatial Information Management Division (Fiji) UNGGIM

Plenary Theatre
09:40
09:40
30min
Panel - Women in GIS

The Women in GIS Panel Session will bring together notable women in the GIS professional from Oceania and the Pacific to discuss those issues facing their community.

Plenary Theatre
10:10
10:10
20min
Morning Tea
Plenary Theatre
10:30
10:30
20min
Gender and Geospatial Technologies in the Pacific
Renata Varea

Gender and Geospatial Technologies in the Pacific
Renata Varea

Abstract
This presentation examines how an open-source geospatial platform has the potential to improve the analysis, visualization and collection of gender-related information and approaches in supporting agricultural and climate-related policy in the Pacific. The incorporation of gender into a Pacific geospatial project is examined, with a focus on our ACIAR funded project titled Climate-smart landscapes for promoting sustainability of Pacific Island agricultural systems. In recent decades there has been increased recognition of the importance of gender in public policy initiatives related to environmental management, disaster risk reduction and climate change resilience. While geospatial technologies have increasingly contributed to these initiatives, the potential role that gender considerations can play in the design and implementation of geospatial applications is to date limited. Despite growing recognition of the power of spatial analysis in contributing to development programs, there needs to be greater focus on the potential support of GIS for mapping gender inequalities and incorporating gendered knowledge in development programs within the Pacific region. Alongside the numerous other gender mainstreaming approaches, geospatial data, spatial methods and software applications can contribute to decisions that address gender inequality for improved sustainable development.

Keywords: gender, GIS, geospatial technologies, Pacific, Climate-smart, landscapes, agriculture, climate change, environmental management, ICT4D, mapping, disaster risk, policy.

Community and Diversity
Plenary Theatre
10:50
10:50
20min
Empowering women in mapping local communities in Kiribati
Ueakeia Martin Tofinga

In this session, Ueakeia Martin Tofinga, founder and former Chairperson of the Kiribati Women in Mapping will share the story of a women-led non-government organization, the Kiribati Women in Mapping, and their journey with Open Mapping Hub – Asia Pacific to help promote the importance of mapping, open street mapping while empowering women in local communities to get involve in mapping.

Community and Diversity
Plenary Theatre
11:10
11:10
20min
Mapping accessibility in OSM with CartoMobil'ite - A new tool to collaborate between institutions and public on accessibility
Violaine Doutreleau

CartoMobil’ite (carto.mobilite.xyz), a collaborative map for active and inclusive mobility originally set up for Tahiti and Moorea, in French Polynesia, and now available for the reste of the world. 100 % based on OpenData and OpenSource, this map was set with and for disabled people, and handles mapping place accessibility and obstacles. Easily adaptable to local contexts this presentation aims at empowering other communities to seize the tool.
On top of that, Violaine will present how this tool is used by the local urbanism agency.

Community and Diversity
Plenary Theatre
11:30
11:30
20min
All of five kilometers
Ewen Hill

The challenge to keep mentally and physically fit during the Melbourne COVID-19 lockdown was difficult with Melbournians permitted to just one hour of recreation within five kilometres of their home. Thus #AllOf5Km commenced and I will take you through the history and tools and how OSM data eventually was the winner and how you can leverage Wandrer.Earth for you local community mapping.

Community and Diversity
Plenary Theatre
12:00
12:00
45min
Lunch
Plenary Theatre
12:45
12:45
20min
Linked data, but not as you know it! Doing linked data the PostgreSQL way.
Brent Wood

The National Institute of water and Atmospheric Research in New Zealand (NIWA) has developed a new database of regional seamounts.

Database users have previously extracted seamount data from a database along with museum specimen data, research trawl data, commercial fishing data, geology data, oceanographic data, etc from various disparate data sources and put them together to analyse and tabulate a report describing the varied aspects of a seamount.

The new seamount database utilises PostgreSQL Foreign Data Wrapper (FDW) extensions to create virtual tables, each providing a live link to these remote data sources (including other PostgreSQL databases, MariaDB databases, OGC WFS web services, etc). A single query in this database can join all these together, taking a few minutes to write and retrieve the desired data instead of a few days of data extraction, merging and analysis.

This is a zero maintenance approach, as the links to data sources are live, there is never any need to update or copy datasets to local copies - just access the reference one directly.

It is very unusual to present a new database to a client and get responses that include "awesome" and "fabulous" but this did it.

This presentation will show how you can do this.

GIS resources and methodologies
Plenary Theatre
13:05
13:05
20min
Lessons from the field: disaster risk exposure field data collection using Kobo Collect and Qfield:
Merelita Lewabete, Temalesi Cama, Cilia Rokobue, Kaliopate Tavola

Field data was collected over a period of several months from May to November 2022 across Fiji, Tonga, Vanuatu and the Solomon Islands as part of the PCRAFI II project. Kobo Toolbox and Collect were the web-based and mobile application data collection tools used in this study. The uptake and use of Kobo Toolbox and Collect tools in the region is mixed. Kobo Toolbox and Collect are also open-source resources.

The study will share insights into the iterative process of form design and the required fields for data collection. Steps included collecting data on individual building footprints corresponding to a building feature ID. The fields included in the Kobo Collect form for buildings include 32 questions and at least 2 photos for capture on building attributes and that also needed to be validated. Capturing these standardized datasets allows for a general understanding of the exposure and vulnerability of buildings to a range of hazards. The open-source and QGIS-compatible, Qfield field data collection tool was also used to support navigation. The preprocessed layers including grids, building footprints and building IDs were all prepackaged using the Qfield synchronisation plugin in QGIS to allow for our field teams to see their GPS location and navigate to these key features, all while offline.

Overall, this study seeks to share a range of learnings from the field to inform best practices for other research and data field data collection projects seeking to collect geo-tagged datasets in the Pacific.

GIS resources and methodologies
Plenary Theatre
13:25
13:25
20min
Water stewardship in a changing climate
Ferlisa Jane Valentine

Abstract must be provided

Resource Management
Plenary Theatre
13:45
13:45
20min
Workflows for mixed ESRI/Open Source environments
Em Hain

I'll describe the current state of data compatibility between open source and ESRI software, and describe the various success stories and remaining pain points for mixed ESRI/opensource environments.

GIS resources and methodologies
Plenary Theatre
14:05
14:05
20min
Aquatic Earth Observation: a cost-effective tool for mapping and monitoring the marine environment
Magnus Wettle

Aquatic Earth Observation (EO), with important applications in sectors such as navigation, defense,
oil and gas, coastal inundation and environmental management, can be broadly divided into two
areas: mapping the seafloor and monitoring water quality.

Mapping the seafloor, and in particular estimating water depth, using optical EO has been in
development since the 1970s, but it is in the last decade that the required algorithms and workflow
systems have become sufficiently robust to offer an operational service - applicable worldwide with
known accuracies - without the requirement for a priori, in situ field data.

Monitoring water quality using optical EO has traditionally been done using relatively coarse
spatial resolution sensors and applications have typically been in open ocean waters, being limited
by the optical complexities of inland and coastal waters.

Here, we present a selection of case studies with government agencies, research institutes, and
industry which illustrates the state-of-the-art in mapping water depth and benthic habitats as well as
the operational monitoring of coastal waters.

Having moved from the research domain to being a proven data source for aquatic professionals,
aquatic earth observation is now reaching the next stage: the development of analytical software
that enables in-house capabilities for agencies. A selection of such software will be presented.

The next generation of platforms -including unmanned aerial vehicles (UAVs) capable of carrying
multi- and hyper-spectral sensors - together with big data and advancements in AI will further drive
applications. The potential opportunities and pitfalls for these will be briefly addressed.

GIS resources and methodologies
Plenary Theatre
14:25
14:25
20min
Afternoon Tea
Plenary Theatre
14:45
14:45
20min
Impact of Ashes from the 2022 Tonga Volcanic Eruption on Satellite Ocean Color Signatures
Andra Whiteside

A powerful eruption within the Hunga Tonga-Hunga Ha’apai (HTHH) volcano (20.64°S, 175.19°W) in the Kingdom of Tonga, occurred on 15 January 2022. The volcanic blast was enormous, leading many scientists to investigate the full impact and magnitude of this event via satellite observations. In this study, we describe a new ocean color signature from a discolored water patch created by the HTHH eruption using NASA and CMEMS products of satellite-derived biological and optical properties. Elevated surface chlorophyll-a concentration (Chl-a) between 0.15 to 2.7 mg.m-3 was not associated with phytoplankton growth, but to basalt-andesitic ash material expelled by the volcano and into the ocean, which resulted in erroneous Chl-a estimates. Distribution of the patch over time was aligned with CMEMS ocean currents for 19 days. The gradual decrease of light attenuation or diffuse attenuation coefficient for downward irradiance at 490 nm, Kd(490), was interpreted as due to the sinking of ash particles with time. It is suggested that due to high porosity of 30-40%, a density close to that of seawater, ash particles stay suspended in the water column for more than 10 days with sustained high values in Chl-a, Kd(490), and particulate backscattering coefficient at 443 nm. The high attenuation of light due to ash, reducing the attenuation depth to less than 10 meters during the first period after the eruption may have had implications on ecological processes and biogeochemical cycles in Tongan waters.

Remote Sensing for Disaster Mitigation
Plenary Theatre
15:05
15:05
20min
Use of Synthetic Aperture Radar (SAR) imagery in Emergency Response and Disaster Management
Dr Dipak Paudyal

Synthetic Aperture Radar, or SAR, is rapidly becoming a go-to method for remote observation. The use of SAR is advantageous over other remote sensing methods, such as optical data, for several reasons. Some of the most cited are the ability to see through cloud cover and smoke, and the fact that SAR may image an area regardless of illumination conditions, so it may be used both day and night. One other key benefit is increased rate of revisit as more and more SAR sensor continue to be launched. In addition to these, SAR scenes may also cover very large areas – some are over 200 km across. SAR Imagery is therefore extremely versatile and may be used across a wide variety of applications – anything from hazard monitoring and disaster response (such as fire and flood), oceanographic monitoring for oil spills or ship detection, agricultural monitoring, change detection, subsidence, and displacement mapping through to estimation of forest biomass/carbon.
This presentation will discuss how one can make an operational use of SAR Imaging for managing natural hazards that are caused by geo-physical or climatic events, including earthquakes, volcanic eruptions, floods, droughts, storm events such as cyclones, and fire that threaten people’s lives or property. The presentation will demystify some of the jargons used in SAR Image Analysis and discuss how Geospatial Analysts can exploit the benefits that SAR imagery provides.

Remote Sensing for Disaster Mitigation
Plenary Theatre
15:25
15:25
20min
Infrastructure Vulnerability to Slope Instabilities and Floods in Bhutan
Dr Alex Bandini-Maeder

In Bhutan, more than 70% of the population and infrastructures are located along the main river basins, making them particularly exposed to floods and landslides caused by more frequent extreme weather events.
Geoneon, in partnership with Terranum and the Department of Disaster Management (Bhutan), implemented a solution for the Climate Innovation Challenge (CIC) of the Asian Disaster Preparedness Center (ADPC) to assess the vulnerability of infrastructures to slope instabilities and floods in Bhutan to support the development of strategies for disaster risk reduction and climate change adaptation.
The aim of the solution is to identify hot spots where critical infrastructures are the most vulnerable to climatic disaster, so to support decision-makers to develop appropriate mitigation and monitoring measures to reduce the number of affected people, direct economic loss, damage to critical infrastructure, and disruption of critical services to the community.
This pilot delivered, for both Phuentsholing - Pasakha and Gelephu watersheds in Bhutan – about 400km2 –, the following outputs, which achieved the agreed scope of work:
• Very-high resolution and multi-band satellite data covering the pilot area of interest.
• An infrastructure model based on replacement value metric.
• An inventory of existing sudden shallow landslides or other erosional processes, and of permanent large deep-seated slow-moving earth- and rock- slides.
• Rockfall, debris flow, large torrent, and flood susceptibility maps.
• A vulnerability model of buildings, roads, and power lines to rockfall, debris flow, and flood at a grid resolution of 30-by-30 meters.
• Recommendations about mitigation measures.
In addition, a webpage (ADPC (geoneon.com)) containing web-maps of all the results of the pilot was prepared and made available online, so to improve the communication of the results. The web-maps presenting the different hazard susceptibility and vulnerability are a valuable resource for the Department of Disaster Management to promote awareness and communicate with local governments about disaster risk reduction and climate change adaptation. Especially in areas where limited information is available.
The pilot has demonstrated that it is possible to have a methodology using mainly satellite data and advanced algorithms, including machine learning, as a fast and scalable way to identify infrastructure vulnerability hotspots. Therefore, the solution is highly scalable, fast, and can be applied anywhere in the world.

Remote Sensing for Disaster Mitigation
Plenary Theatre
15:45
15:45
20min
Analysis of surface turbidity from Sentinel-2 images and a 3D-coupled model : Case study on Laucala Bay, Fiji Islands
Awnesh Singh

Distributions of fine suspended sediments in the South Fiji lagoon of Viti Levu show large variations linked to episodic changes of inputs from the main rivers, during dry and rainy periods, or stirring by wind and currents from tides. Turbidity as measured from in situ data or extracted from satellite reflectance turbidity algorithms gives an estimation of their concentration. Here, we examined variability of turbidity patterns inside the bay during a 4 months period, and particularly show the impact of a Category 5 intensity tropical Cyclone Yasa on the 17th December 2020, bringing heavy rain and strong winds. Sentinel 2 Images are interpreted in terms of suspended matter concentration in a typical optically complex (Case 2) lagoon waters including bottom reflectance signal when clear, and high particle run offs when rainy, giving extreme values of turbidity (< 10 to 300 mg.L-1). Distribution of Sentinel turbidity just 2 after Yasa, mimics the one by the fine grain bottom distribution, which we interpreted as the turbidity map resulting essentially from stirring of the bottom sediment, strong enough to enhance turbidity in the whole water column, even in deeper parts (> 30 meters) South of Laucala Bay. A hydrodynamical 3D coupled model considering river runoff, wind stress, bathymetry, bottom friction and the tidal constituants provided outputs that in accordance with the fine grain surface and bottom distribution patterns as shown from Sentinel 2.

Remote Sensing for Disaster Mitigation
Plenary Theatre
16:05
16:05
20min
Design on Marine Pollution Monitoring System Using Multiple Remote Sensing Data
Chan-Su Yang

An automatic production and sharing of marine pollution information (MPI) is necessary to detect and combat an oil-spill accident from aerial surveillance. KIOST has established a Kubernetes-based container infrastructure environment consisting of data acquisition, MPI detection and prediction.
The automatic production module of MPI is applicable to satellite (SAR and optical) and aircraft-based sensors and a camera-based module supports floating hazardous substances detection.
In the DB, domestic and foreign numerical models (sea water flow, wind, and wave), real-time observation data (Korea Meteorological Administration, Korea Hydrographic and Oceanographic Agency, National Institute of Fisheries Science), ship location information, and oil-spill prediction result can be automatically collected and linked.
The final MPIs confirmed through the comprehensive evaluation process for the extracted MOI candidate group is connected to the Korea Coast Guard's pollution prevention support system (POSEIDON) and users can use it on-site.

Remote Sensing for Disaster Mitigation
Plenary Theatre
16:25
16:25
5min
Yadrava na Vanua : Measurement Reporting and Verification of forestry resources and landscape restoration projects.
Francis Chottu and Lanieta Rokotuiwakaya

Yadrava na Vanua : Measurement Reporting and Verification of forestry resources and landscape restoration projects.

Resource Management
Plenary Theatre
16:30
16:30
5min
Building our open mapping community - The progression of OSM Fiji
Carrol Chan

This talk will provide a brief update on OSM Fiji as we close off our HOTOSM FB Community Impact microgrant, our activities, what we've achieve and our plans ahead as a mapping group

Community and Diversity
Plenary Theatre
16:40
16:40
20min
Lightning Talks
Plenary Theatre
16:40
0min
Progress on the Pacific Risk Tool for Resilience project (phase 2)
Johnny Tarry Nimau

Progress on the Pacific Risk Tool for Resilience project (phase 2)

Climate Resilience
Plenary Theatre
16:45
16:45
5min
QGIS Data Versioning with Kart
Hamish Campbell

Maybe you've heard of Kart, the great new geodata versioning tool from the team at Koordinates? But did you know that Kart also has a QGIS plugin so you can do real data versioning without needing to leave QGIS?

In just 5 minutes we'll demonstrate how to import data into a new Kart repository, make and review some changes, merge a branch, and push everything to a remote server. All from QGIS!

Geospatial Tools and Practices
Plenary Theatre
16:50
16:50
5min
A Rapid Method for Heatwave Vulnerability Assessment
Dr Alex Bandini-Maeder

Heatwaves are among the most dangerous of climatic disasters. More than 166,000 people died due to extreme temperatures between 1998 and 2017. Extreme heat events in urban areas have significant negative impacts, including increasing pressure on the physical and mental health, on power systems and the economy, as well as decreasing productivity of the population. It is also known that the impact of heat is not evenly distributed across the population with disadvantage population being the most impacted.
However, we know that taking action to reduce heatwave risks works. We have developed a rapid method to assess vulnerabilities to heatwaves to help decision-makers drive change for climate adaptation. We use satellite data and machine learning to get an accurate view of tree canopy cover and land surface temperature by land-use, along bike paths, bus stops, health centers, schools. Our methodology also considers socio-economic and demographic indicators to identify where vulnerable people live so to make informed decisions to plan mitigations and keep protecting communities.

Climate Resilience
Plenary Theatre
17:55
17:55
5min
Black Sky
Maurice Borer

Black Sky in Oceania

Remote Sensing
Plenary Theatre
09:00
09:00
20min
Keynote - Sustainable Community Dynamics in Open Mapping
Can Unen

Mr Can Unen, Humanitarian OpenStreetMap Team

We at the Humanitarian OpenStreetMap Team are prioritizing community-led local ownership of the data via developing approaches to help the amplification of these voices within the global community. With regional hubs at Asia-Pacific, Eastern & Southern Africa, Northern & Western Africa and Latin America, HOT is aiming to focus on the regional context in a better sense, based on the needs & priorities of local & regional communities.

With a shared vision with the OpenStreetMap Special Interest Group of OSGeo Oceania, we are aware of the necessity of multi-sectoral representation within the open mapping communities. Strong representation from government, NGOs, universities, social enterprises, commercial entities and volunteer communities and healthy interaction and collaboration between these actors are crucial for sustainable, living ecosystem. With the support and knowledge to be harnessed from the global network of open mapping communities, we are looking forward to a vibrant OpenStreetMap community presence in Oceania.

Plenary Theatre
09:20
09:20
20min
Ocean Color in Pacific tropical archipelagos (phytoplankton blooms in ocean and lagoons): a review of algorithms
Cécile DUPOUY

The Southwest Tropical Pacific oceanic waters are mostly blue. Still, these large ocean areas are subject to phytoplankton blooms, developing within archipelagos, sometimes in connection with lagoons surrounding islands. Results of studies for discriminating phytoplankton species in the ocean or validating regional algorithms for chlorophyll in enclosed lagoons will be shown. Perspectives will be given for future ocean color works at all scales as an aid for surveying coastal areas and lagoons of Pacific Islands States, from a climate change standpoint

Climate Resilience
Plenary Theatre
09:40
09:40
20min
High-resolution erosion modelling using the RUSLE applied to open-cut coal operations under consideration of increased rainfall variability in climate change models
Pascal Bolz

While coal mining in Australia and most other industrial nations in the world is phasing out in the next few decades, the mining industry must face the current and near future effects of climate change and its impacts on mine operations regardless of their current state in the life-of-mine cycle. Increasing rainfall variability in current climate models and the resulting effects on soil erosion volumes are directly affecting a variety of operational considerations, such as (1) sediment basin design as part of the water management plan on site, (2) ongoing rehabilitation with reestablishment of vegetation cover of previously stripped landscapes, and (3) landform stability as part of the mine closure requirements. Most erosion models provide estimates of annual soil loss and are suitable for short-term assessment of the erosion performance of landforms integrating biophysical data such as soil properties, vegetation cover, topography and rainfall variability and are suitable to provide guidance in operational decisions concerning (1) and (2). The GIS-based Revised Universal Soil Loss Equation (RUSLE) provides annual soil loss estimates on an empirical basis and requires a manageable amount of input data that can be directly measured or derived from regional/national databases and/or spatial datasets for most parts of the world. Detailed assessment of soil erosion within mining operations, however, requires some data with spatially high resolution of a few meters especially for topography and vegetation cover to capture the complexity of mine operations. These datasets are regularly acquired by mine operators using aerial surveys and can be integrated with regional dataset to derive a pixel-based, high-resolution annual erosion estimate. In this study we demonstrate the data integration of such a model at mine site scale with a catchment model under consideration of operational domains, and its implications for the design of sediment control structures and performance of rehabilitation efforts.

Climate Resilience
Plenary Theatre
10:00
10:00
20min
Unlocking the potential of geospatial technologies for climate resilience
Khaled Mashfiq

Attached as jpeg

Climate Resilience
Plenary Theatre
10:20
10:20
20min
Morning Tea
Plenary Theatre
10:40
10:40
20min
Georegulation - standardising the digital representation of maritime boundary data
Jonah Sullivan

The IHO S-121 data interchange standard enables an open, international, coordinate-based, representation of maritime boundaries and their associated rights, restrictions, and responsibilities (RRRs) that are authoritative and easy to interpret. The standard has been published by the IHO and is currently informing the development of ISO 19152 Land Administration Domain Model (LADM) -- Part 3: Marine Georegulation.
This presentation will provide an overview of how the S-121 and 19152-3 standards have been developed and where Georegulation is going next.

Data Management
Plenary Theatre
11:00
11:00
20min
Supply Chain Vulnerability to Wildfire in Australia
Dr Alex Bandini-Maeder

The Shire of Dundas , the Freight and Logistics Council of WA, and Geoneon are partnering on a proof of concept project to assess the exposure and vulnerability of the supply chains to wildfire in the Southern Goldfields region in Western Australia.
The pilot project uses state of the art techniques using machine learning on earth observation data combined with freight flow analysis to evaluate the vulnerability of key supply chain infrastructure to wildfire in the Goldfields region.
The objective of the pilot project is to develop a new approach to identify points of failure in supply chain at the community, local government, and state levels.

Disaster response
Plenary Theatre
11:20
11:20
20min
NewSpace Technologies to fasten change detection linked to urban uncontrolled growth
Remi Andreoli

Digital platform, datacubes and cloud computing technologies are changing our approach to monitor our environment. This presentation will focuses on these new possibilities applied to the early detection of changes linked with urban uncontrolled growth in the Pacific Islands.

Disaster response
Plenary Theatre
11:40
11:40
20min
Preliminary results of the exposure data collected through the PCRAFI project
Thompson Auri, Orisi Naivalurua

Disaster risk management associated with increasing climatic stressors are often a central and streamlined area for policies and programs in Pacific Island Countries (PICs). Estimates of average annual direct loss caused by natural disasters have reached US$1.07 billion across all Pacific Small Island Developing States (UNESCAP, 2020). Across PICs, there is a high level of exposure to both seismic and climate-related hazards.

This study documents the results from field data collected from over 10,000 assets across both Tonga and Vanuatu, and possibly Solomon Islands. These fields include the GPS point, description of the building, use and sub-use occupancy class, foundation, bracing, structure, wall, window and roof types, materials and conditions, minimum and maximum floor height above ground, year of construction, number of storeys and understoreys and utilities. Capturing these standardized datasets allows for a general understanding of the exposure to a range of hazards.

In this presentation we will share analyses of the results of the exposure data collected across these PICs. The presentation will also touch on the opportunities that exist in the region to build upon this work. These insights can support an evidence base built on field data inputs for more accurate policy decision-making processes

Disaster response
Plenary Theatre
12:00
12:00
45min
Lunch
Plenary Theatre
12:45
12:45
20min
QGIS and Spatialite - how to deploy these for intelligent field based data capture
Brent Wood

The presenter is developing a new data capture tool for staff working at sea for the National Institute of Water and Atmospheric Research in New Zealand (NIWA). The approach taken uses QGIS as the interactive tool, working with a behind-the-scenes Spatialite database, SQL triggers are used to implement business rules (creating a configurable, intelligent, multi-purpose database) for data capture, providing robust capture and simplified workflows.

The system has been deployed on small vessels, down to 5m, for trawling, fish potting and underwater camera surveys. Vessel operators and science staff have found the system useful for survey planning and provides improved real time benefits during a survey, resulting in better quality data (reduced errors) and reduced workload.

This provides a zero programming requirement - given real programmers don't believe SQL is a real programming language. It does make intensive use of SQL and the database back end to automate the process as much as possible, to simplify and reduce the real time workload.

The presentation will interest anyone working on boats carrying out surveys and collecting data, perhaps even those not using boats!!

Data Management
Plenary Theatre
13:05
13:05
20min
Git and GitHub are knocking on geospatial’s door
Jonathan Ball

An overview of the benefits distributed version control offers geospatial data. We are all aware that geospatial is a powerful tool to inform decision-makers, especially in the context of climate change, but is our data stored and managed appropriately given the gravity of these decisions? We will discuss how introducing common practices from the software development community might prevent some industry embarrassment in 10-20 years.

Data Management
Plenary Theatre
13:25
13:25
20min
The use of Digital Platform for Marine Spatial Planning: the TAHATAI project in French Polynesia.
Pascal Correia, Remi Andreoli

French Polynesia is the largest EEZ (Exclusive Economic Zone) of France (5 millions of sqkm) in the middle of the South Pacific, in one of the most preserved and sanctuary areas in the world. The government of French Polynesia therefore has the strong will to ensure its development through the blue economy and the preservation of its natural and cultural resources.
In line with the action carried out by the European Union since the adoption in 2007 of the Maritime Integration Policy, French Polynesia aims to acquire a Maritime Spatial Planning (MSP) in order to bring together all users of the oceanic and lagoon areas in order to guide public action and coordinate the sustainable use of marine resources.
French Polynesia must overcome the following challenges:
• Protect a unique and still preserved maritime area
• Plan the use of maritime areas by anticipating usage conflicts
• Enable economic development
The TAHATAI project can be summed up in the following credo: See the Past, Present and Future by using the best available, organized and shared data in order to create the necessary corpus of knowledge for effective, accepted marine spatial planning and sustainable.
Concretely, the objectives to be achieved by the TAHATAI project are broken down into four axes: Alert, Manage, Plan, and Collaborate regionally.
The TAHATAI project approach is based on the interoperability and capabilities of new web and cloud technologies in order to bring together all the data and information necessary for marine spatial planning.
The increased responsiveness of public authorities to the challenges of surveillance and protection of maritime areas is notably made possible by the paradigm shift in the method of accessing data. In fact, the customer / supplier relationship constrained by the rules of public procurement are, within the framework of this project, replaced by a public / private / research collaboration upstream from the design of the services.
TAHATAI is labeled by the Space Climate Observatory (SCO) initiative.

Data Management
Plenary Theatre
13:45
13:45
20min
Kart: an introduction to practical data versioning for geospatial data
Hamish Campbell

We’re drowning in data, but the geospatial world lags badly behind in versioning tools compared to our software counterparts. Kart is solving this with a practical open tool for versioning datasets, enabling you to work more efficiently and collaborate better.

We will introduce you to Kart and demonstrate some of the key features, including our QGIS plugin. And we'll highlight what’s coming next on our roadmap.

Data Management
Plenary Theatre
14:05
14:05
20min
FFA Remote Sensing to combat IUU fishing in the Pacific
Yohni Fepuleai

FFA has engaged Satellite remote sensing to support its Integrated MCS tools approach to combat IUU fishing in the Pacific.

FFA implemented Synthetic Aperture Radar (SAR), Imagery Acquisition Orders and Radio Frequencies to support the 2021 - 2022 four FFA Regional Maritime Operations and Intelligence support to our Members to detect dark targets and IUU fishing activities. FFA has been a receiving user of the satellite remote sensing and analysing the detections against fisheries data and intelligence to support targeted taskings and boarding inspections at sea and in port.

The presentation will cover the FFA use of satellite remote sensing in its regional surveillance operations to support 17 FFA Members, see the potentials of RF and SAR detections to identify potential dark targets that are not on WCPFC and FFA Register and not reporting on VMS. The results indicate an opportunity for additional surveillance using remote sensing analysis to be communicated to participating Members through the regional surveillance picture and daily brief on the FFA RIMF.

Information for Decisionmakers
Plenary Theatre
14:30
14:30
10min
Afternoon Tea
Plenary Theatre
14:40
14:40
20min
Earth Observation Strategies that Deliver Tangible Results: Insights from New Zealand
Dragos Bratasanu

Earth Observation data is a strategic asset. How do you develop and implement a geospatial data strategy that brings measurable change and delivers tangible results for an organization, a region, or a country? A good strategy always paves the way out of a difficulty, offers an approach to overcoming a specific challenge, and provides a controlled response to a significant problem. A good strategy is based on the clear understanding of the present reality that needs facing, anticipates the real-world difficulties that need to be overcome, removes fluff and philosophical words, and gets right to the point by providing precise solutions and the roadmap to get there. Developing a good geospatial data strategy begins by discovering the critical factors in the current context. Then, optimal data options and technical solutions are presented to meet the great majority of the users' requirements. Finally, tightly managing and coordinating the programmes, policies, and resources is critical to a successful delivery. Strategic execution and strong management control are key to the success of the strategy, and no amount of inspiration can replace the strict management of its deployment. This talk presents key insights from developing and delivering several geospatial data strategies in New Zealand.

Protecting the Pacific
Plenary Theatre
15:00
15:00
20min
Precision agroforestry inventory monitoring in the Marshall Islands
Ryan Perroy

Traditional agroforestry species provide food security and income across the Pacific Islands, through copra production and other goods. The hardiness and resilience of several traditional species (especially coconut and pandanus) are a bulwark against instability and erosion associated with climate change. Protecting and managing these resources requires detailed and current knowledge of agroforestry inventories and crop conditions. Production losses due to senile trees, disease and pest infestations, and erosion and soil salinization from rising sea levels are just some of the issues facing Pacific Island agroforestry partners and stakeholders. In this talk we will share some results performing agroforestry inventory and monitoring through the collection and analysis of high-resolution imagery using automated artificial intelligence (AI) algorithms for a number of atolls within the Republic of the Marshall Islands.

Protecting the Pacific
Plenary Theatre
15:20
15:20
20min
Typology of Reef Passages: A view from above
Alexandra Nozik

Coral reefs host exceptionally diverse marine life. Reef passages connect coasts with the open ocean and provide multiple social and ecological benefits, but are so far neither characterized nor recognized for their multifaceted significance. The presented study was part of the SOCPacific project. Due to COVID-19, we developed this study based on remotely sensed Google Earth imagery. We investigated 113 reef passages across nine Pacific islands in Fiji, New Caledonia and Vanuatu and, in partnership with locally based scientists, developed criteria to define three distinct types, mainly based on distance to coastline and presence/absence of an enclosed water body. The presentation will cover the methodology, the experienced limitations and challenges, and will open further development of this GIS-based study to discussion.

Protecting the Pacific
Plenary Theatre
15:40
15:40
20min
RERIPA project: the use of Remote Sensing data for helping coastal surveys
Cécile DUPOUY

The RERIPA of OACPS EU innovation Program aims at Strengthening Research and Innovation ecosystem to address the Impact of climate change (CCI) in the Pacific. Create user centred Living Labs, i.e. consortia of public private stakeholders following an open innovation approach, to develop inclusive and sustainable innovative solutions founded on research-based evidence to address the Climate Change Impacts in the Pacific Small Islands Developing States (SIDS), with a special focus on:
- Coastal vulnerability ; - Lagoon and ocean health; - Sea level rise. Remote Sensing will be a useful tool in these projects.

Protecting the Pacific
Plenary Theatre
16:00
16:00
20min
Monitoring of Fishing Vessel Activities Using Satellite Data and AIS
DAE-WOON SHIN

Pacific Islands located in the Pacific Ocean have abundant ocean resources, whereas fishery area is designated by each country's Exclusive Economic Zone (EEZ). In this study area, we analyzed spatial and temporal characteristics of fishing vessel activities by EEZ for marine spatial planning. VIIRS Boat Detection (VBD) is an output data of estimated fishing vessel by detection algorithm based on Visible Infrared Imaging Radiometer Suite (VIIRS) Day and Night Band (DNB), which was used for generating fishing vessel activity map by daily, monthly, yearly. Time series ship information acquired by Automatic Identification System (AIS) was used to find fishing activity areas by evaluating ship speed and trajectory. Using both results, we could be monitored the fishing activity area efficiently and it could be helpful for establishing marine resource management planning.

Protecting the Pacific
Plenary Theatre
16:20
16:20
20min
2D and 3D Shoreline Changes of Reef Islands
Maria Kottermair

Reef islands are highly dynamic and change in shoreline horizontal and vertical positions can occur rapidly over days or slowly over years to decades. Reef island environments are severely impacted by sea level change and human activities like dredging and shoreline hardening. These impacts are likely to be exacerbated in a future of higher sea levels and changing wave climates. Despite this there are very few studies that have examined shoreline and volumetric change of low-lying reef islands over time. Measuring the horizontal position and three-dimensional volume of low-lying reef islands at high spatial resolution (< 1 m) and precision over several seasons and years will provide a better understanding of the processes driving shoreline change and coastal erosion and accretion. The first part of this presentation will examine how shoreline changes, specifically on reef islands, can be measured using different data sets and processing methodologies like aerial images, GPS, and laser scanners. The second part will provide preliminary results of a pilot study of shoreline changes on Heron Island. The results from this study, which is part of a PhD project, will help inform shoreline monitoring, management strategies and mitigation measures, facilitate greater accuracy in modelling future island states, and help ensure sustainability of the island. The overall aim is to protect the important ecosystem reef islands provide and to offer insights into tropical island change that will be relevant globally.

Protecting the Pacific
Plenary Theatre
16:40
16:40
20min
Development of Decision Ready Tools to Support Coastal and Marine Spatial Planning: Case Study for Funafuti, Tuvalu
Chan-Su Yang, Sree Juwel Kumar Chowdhury

The Pacific Ocean region faces unique challenges managing its natural resource, biodiversity and sustainability due to its limited capacity in ocean science. To overcome the difficulties, decision ready tools and management solutions of Coastal and Marine Spatial Planning (CMSP) are needed. This project aims to develop decision ready tools that can be used with publicly available satellite data to aid in the sustainable management of coastal regions. The alteration of coastal area causes a great impact on the coastal communities as well as their livelihoods and several factors work behind this change. Likewise, the coastal regions of Tuvalu, a reef islands country in the Pacific Ocean, are very much dynamic as a consequence of frequent tropical cyclones and sea level rise. Therefore, for this research Tuvalu was selected as the study area and the purpose was to depict the previous years’ coastal changes as well as the present trends and also find out the major causes responsible for this change. High resolution Google earth pro, WorldView-2, Landsat series and Sentinel-2 satellite data were used in this study. Semi-automatic extraction of coastline was conducted for the previous and recent years and then both extracted results were compared to illustrate the intensity of changes. The result shows that the recent trend of Tuvalu’s coastal area change is lower than the previous year’s change.

Protecting the Pacific
Plenary Theatre
09:00
09:00
180min
An Introduction to using GDAL, PDAL, and Python for Processing Elevation and Bathymetry Data
James Ford

This workshop will take you through how to perform common processing steps on elevation and bathymetry data using GDAL and PDAL, either via command line or via python. It will serve as a brief introduction to the tools involved, to some common processing steps, and some approaches for creating data processing workflows.

A basic knowledge of command line or python is recommended so that you can make the most of the workshop. You can follow the steps in either.

The workshop is designed for Windows users. It can be done on other operating systems, but the software installation and command line basics will differ.

The latest version of QGIS (3.26 or 3.28) is needed for the PDAL section of the workshop. The QGIS LTR (Long Term Release) and earlier versions for QGIS 3 will be suitable for the GDAL section. Conda and VS Code are recommended for the python sections.

Geospatial Tools and Practices
GIS Lab A
09:00
90min
Applications and Benefits of Synthetic Aperture Radar (SAR)
Dr Dipak Paudyal

Join us for a workshop session to hear the use of Synthetic aperture radar (SAR) in several geospatial applications. The workshop will provide an overview of SAR and its application followed by some examples of implementation of the technology in a commercial Off the Shelf ENVI SARscape product.

Remote Sensing
Room 134-107A (Lower Campus)
09:00
180min
In-the-field data collection with QField and friends
John Duncan, Kevin Davies, Ahi Saipaia, Nathan Wales

This workshop will provide an introduction to spatial data collection and survey projects using open-source geospatial software. This workshop is based around a data collection workflow for mapping agricultural landscapes developed in Tonga. Participants will work with a farm survey data collection project and a land cover ground truth survey project. This workshop is suitable for beginner users and will assume no prior experience using the various software applications.

The workshop will demonstrate how to use QField mobile GIS for mapping spatial features in-the-field, querying spatial reference layers, and capturing non-spatial attribute information using digital forms. It will discuss best practice for designing digital data collection forms to: improve data collector’s user experience, efficiently capture relevant information, and minimise data entry error. QFieldCloud features required to support large-team collaborative data collection and automated syncing and versioning of project data will be introduced. The workshop will also cover techniques for transitioning between online and offline data collection and using offline basemaps and reference layers. Finally, tools to access and analyse data collected in the field will be introduced including downloading QFieldCloud data and techniques to use the QFieldCloud API to develop web apps / maps. Participants will be directed towards further documentation and open learning resources to build on what they’ve learned during the workshop and to implement their own projects.

Open Source and Open Data
GIS Lab B
09:00
120min
InaSAFE: Plan your Disaster Impact Scenario Easily and Effectively
Harry Mahardhika Machmud

This is a workshop to introduce a QGIS plugin for disaster impact scenario called InaSAFE to create estimation impact for particular disaster event using combination of some free and open source tools such as OpenStreetMap.

Open Source and Open Data
Plenary Theatre
13:10
13:10
170min
HOTOSM Mapathon
Plenary Theatre
13:15
13:15
180min
Geospatial Intelligence in the Cloud
Mithil Shah

In this workshop, we will build a model that identifies building footprints from satellite images using Machine Learning on AWS. In order to train this model, we will be using the Semantic Segmentation built in-algorithm on the SpaceNet dataset with the Deeplab-v3 backbone.

You will have access to an AWS account where you will be able to launch a Jupyter notebook and follow along to build your own model.

We will use the SpaceNet SN6: Multi-Sensor All-Weather Mapping dataset. The data is hosted on AWS as a public dataset on Amazon S3.

The data is over 120 sq km of both high resolution synthetic aperture radar (SAR) data and electro optical (EO) imagery with ~48,000 building footprint labels of Rotterdam, The Netherlands.

GIS resources and methodologies
GIS Lab A
13:15
180min
In-the-field data collection with QField and friends
John Duncan, Kevin Davies, Ahi Saipaia, Nathan Wales

This workshop will provide an introduction to spatial data collection and survey projects using open-source geospatial software. This workshop is based around a data collection workflow for mapping agricultural landscapes developed in Tonga. Participants will work with a farm survey data collection project and a land cover ground truth survey project. This workshop is suitable for beginner users and will assume no prior experience using the various software applications.

The workshop will demonstrate how to use QField mobile GIS for mapping spatial features in-the-field, querying spatial reference layers, and capturing non-spatial attribute information using digital forms. It will discuss best practice for designing digital data collection forms to: improve data collector’s user experience, efficiently capture relevant information, and minimise data entry error. QFieldCloud features required to support large-team collaborative data collection and automated syncing and versioning of project data will be introduced. The workshop will also cover techniques for transitioning between online and offline data collection and using offline basemaps and reference layers. Finally, tools to access and analyse data collected in the field will be introduced including downloading QFieldCloud data and techniques to use the QFieldCloud API to develop web apps / maps. Participants will be directed towards further documentation and open learning resources to build on what they’ve learned during the workshop and to implement their own projects.

Open Source and Open Data
GIS Lab B
13:15
13:15
90min
QGIS Tips and Tricks from the Community
Em Hain

Come and meet the QGIS Community to build your network, learn some new tips and tricks and get your QGIS questions answered. This will be an interactive workshop where we will start with answering submitted questions and then we will open it up to the community to share. You might just meet your future QGIS buddy!

Open Source and Open Data
Room 134-107A (Lower Campus)
No sessions on Friday, Dec. 2, 2022.