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UID:pretalx-foss4g-2023-ECHVLX@talks.osgeo.org
DTSTART;TZID=CET:20230629T163000
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DESCRIPTION:The ever-increasing threat from disaster is an urgent call for 
 a proactive discourse on pragmatic elimination and reduction of the challe
 nges and stresses caused by disasters. This study\, therefore\, leverages 
 on the research gap as it applies to the application of crowdsourced rapid
  response mapping in a developing country of Nigeria\, where\, critical ge
 ospatial data is grossly unavailable to respond to vulnerable resilient co
 mmunities. The study deployed two research techniques namely: participator
 y crowdsourced mapping and gamification. The HOT tasking manager data anal
 ytics was used to analyze the level of participation and contribution of v
 olunteer mappers over time while QGIS was used to produce maps unveiling b
 uilding footprints generated in OSM\, before and after Mapathon. The study
  delineated 8 LGAs for a mapping task of 2015 grids and 639 grids for Mapa
 thon battle season-1 and 2 respectively.Season-1 was the months of flood(R
 ainy Season) while Season-2 was the flood receding months (dry season)  Re
 sults  unveiled analysis of flood response mapping season-1\, had a total 
 of 571\,659 edits comprising 481\,912 buildings and 22\,244km of roads con
 tributed by initial 7\,601 participants\, but completed by 1\,644 voluntee
 rs\, mapping 4\,946 grids within a timeline of 38months at the rate of thr
 ee hours 38minutes per task. 70% of volunteer mappers engaged were beginne
 r mappers Maps showing before and after Mapathon in OSM were produced for 
 ONELGA\, Numan Sarbon Birnin and Ilorin West LGAs respectively. However\, 
 analysis of flood response mapping season-2\, unveiled a total of 357\,168
  edits comprising 325\,023 buildings and 7\,438km of roads were contribute
 d by the initial 4\,006 participants\, but completed by 801 volunteer mapp
 ers using 2\,238 grids within a timeline of 14months at the rate of two ho
 urs 33minutes per task. Maps showing before and after in OSM were produced
  for Afikpo North\, Warri South\, Logo and Jamare LGA respectively. The St
 udy contributed to a measurable target of SDGs 1 to 7\, 11\, 13\, 15 and 1
 7. The study generated massive critical open geospatial data needed for ef
 fective disaster response and SDGs\, and paving way for effective geoinfor
 mation e-governance in Nigeria. Lastly\, the study promotes the relevance 
 of citizen-generated data for national geospatial data infrastructure deve
 lopment and participatory crowdsourced mapping using OpenStreetMap at loca
 l levels. The study has also bridged a critical scientific research gap an
 d inquiry in OSM GIScience.
DTSTAMP:20260714T122711Z
LOCATION:UBT C / N111 - Second Floor
SUMMARY:OpenStreetMap Seasonal Differential in Citizen Science Volunteered 
 Response Mapping of Flood Disaster Vulnerable Communities in Nigeria - Dr.
 Victor N.Sunday
URL:https://talks.osgeo.org/foss4g-2023/talk/ECHVLX/
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