BEGIN:VCALENDAR VERSION:2.0 PRODID:-//pretalx//talks.osgeo.org//foss4g-2022-academic-track//speaker//F3 FZZK BEGIN:VTIMEZONE TZID:CET BEGIN:STANDARD DTSTART:20001029T040000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET TZOFFSETFROM:+0200 TZOFFSETTO:+0100 END:STANDARD BEGIN:DAYLIGHT DTSTART:20000326T030000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST TZOFFSETFROM:+0100 TZOFFSETTO:+0200 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:pretalx-foss4g-2022-academic-track-Y98TUU@talks.osgeo.org DTSTART;TZID=CET:20220826T100000 DTEND;TZID=CET:20220826T103000 DESCRIPTION:Open mapping leverages on volunteer mappers mobilized and engag ed from the public. volunteers most often are trained and coordinated vir tually to carry out dedicated mapping task\, irrespective of their geograp hic location\, professional and academic background. In this study volunte er mappers engaged are categorized into two namely: the Local Volunteer Ma ppers (LVM) comprising of all the potential and actual mappers resident in Nigeria and the Remote Volunteer Mappers (RVM) comprising of all potentia l and actual mappers not resident in Nigeria. \nThe study sampled 2 Loca l Government Areas (LGAs) of River State from the 4 vulnerable oil spill d isaster LGAs of Ogoni land communities. Ogoni land is a major oil spill di saster vulnerable area of Nigeria\, being the major host communities of cr ude oil exploitation in the Niger Region of Nigeria. Following the hazardo us impact and damage of Ogoni land by oil Spill disaster over the years of oil exploitation in Niger Delta\, UNEP assessed that the environmental re storation of Ogoni land would require coordinated efforts on the part of g overnment agencies at all levels\, industry operators and communities. UNE P also presented its recommendations as a major opportunity to bring new i nvestment\, employment opportunities and a culture of cooperation to Ogoni land in addition to driving improvements in the environmental and health situation on the ground. To effectively implement the UNEP recommendations for restoration of Ogoni land\, there is a need for a geographic data tha t provides critical building footprint in the area\, especially\, to ident ify and access the vulnerable oil spill communities. Maps produced would b e used by government agencies and other stakeholders working to implement UNEP report on Ogoni land restoration as well sustainable development.\nCo nsequently\, the study engaged volunteer mappers to respond to sampled Oil spill communities viz-viz 3 LGAs in Rivers State\, Niger Delta Region of Nigeria. To assess the level of participation of Local (mappers in Nigeria ) and Remote Mappers (Not Resident in Nigeria)\, two mapping projects were created in HOT tasking manager for local and remote mappers respectively. For the purpose of campaigning for Volunteer Mappers the 2 project tasks were tagged ‘’ Mapathon Battle for Vulnerable Oil Spill Disaster Commu nities in Niger Delta’’ respectively. Project task 6358 was created ex clusively for remote mappers outside Nigeria to map Tai LGA\, while\, proj ect task 6359 was created exclusively local mappers resident Nigeria to ma p Gokana LGA in a Mapathon battle challenge. Project task 6358 had a total grided cells of 825 mapping tasks for online engagement of mappers while project task 6359 had an automated grided cells of 706 mapping tasks due t o differences in the size of the area. The Mapathon unveiled the followin g research results. Engagement of remote mappers for project task 6358-Tai LGA shows that out of the 583 tasks completely mapped\, only 13 were yet to be validated after 2 years of creating the project. This is as a result of archiving the project and diversion of attention to urgent tasks. The project recorded a total of about 16\,416 edits comprising of 13\,552 buil dings and 858km of roads mapped in Tai LGA within the timeline of the stud y. Demographic characteristics of the contributors to project 6358 on the basis of HOT Tasking Manager users by experience and level shows that 50% were advance mappers and 100 % has more than 1 year mapping experience .T he project engaged a total of 56 contribtors by mapping and validation. A ll mappers and validators by experience has used the tasking manager for m ore than 1 year while their mapping levels ranges between 40% for begin ner mapper\, 10 % for intermediate and 50 % for advanced mappers. The proj ect timeline as illustrated by the graph shows that mapping and validation of the Tai LGA task commenced on the same date: 6th August\,2019 at the r ate of 12% mapping and 2 % validation. Mapping progressively ascended to 6 4% on the 4th day and got to its peak on the 9th day being 15th August wit h 99% of the entire task mapped. However\, validation of the mapping task had a straight curve with the highest peak of validation being the 12th of September with 95% of the task being validated. By 8th January \,2020\, b eing 6th months of the project\,100% of the tasks were completely mapped w hile 13 of the 596 tasks were yet to be validated. The timeline statistics also shows that an average of 20mintes 46 seconds was the time spent per task to map a total of 583 tasks of 16\,416 edits. Also\, an average of 6m inutes 16seconds was spent for validation per task leaving about 1hour 21m inutes 29seconds to finish up the validation of 13 tasks left unvalidated due to a shift to other project tasks and less passion for the project und er study. However\, the analysis of local mappers engaged in HOT Project T ask 6359 Gokana LGA also unveiled the following: The study shows that 706 (100%) of the tasks were completely mapped except for validation of 473(67 %) tasks which requires further coordination of mappers. There is no recor d of bad imagery and tasks left unmapped. The project also recorded a tota l of about 2064 changesets for mapping a total of about 18\,367 edits\, co mprising of 14\,983 buildings and 521 km of roads. The project also recode d a total of 173 contributors comprising of 169 mappers and 8 validators. These mappers (100%) had more than 1year experience in online mapping with OpenStreetMap and are categorized into beginner mappers (72%)\, intermedi ate (6%) and advance mappers (21%). The entire project timeline by mapping and validation took a period of about 2years 4months(28months) from 6th A ugust 2019 to 27th December \,2021 as at the time of writing this report. Conclusively\, there is a lacuna worthy of research investigation in the m apping response level and capability of remote mappers from other countrie s and local mappers from Nigeria in crowdsourced rapid response mapping us ing OpenStreetMap. DTSTAMP:20260817T172020Z LOCATION:Room Modulo 3 SUMMARY:Analysis of Local and Remote Mappers’ Open Geographic Data Contri bution to Oil Spill Disaster Response in Niger Delta Region\, Nigeria - Dr .Victor N.Sunday URL:https://talks.osgeo.org/foss4g-2022-academic-track/talk/Y98TUU/ END:VEVENT END:VCALENDAR