Assets Exposure Modelling Replacement cost using open source tools
summary
Pacific Catastrophic Risk Assessment & Financing Initiative Phase II collects asset footprints and attributes across five Pacific countries in a 10-month sprint, then estimates replacement costs in USD aggregated to admin1 using regression, scaling and simple weighted unit rates; building material combinations drop from 50→18 building classes for coding, and incomplete layers get spatial scaling. Work uses KoboToolbox, QField/OSM, QGIS, Python and Nexus; outputs feed TC Lola and sea‑level scenarios and are already reused by other projects, though building attribute gaps and the tight timetable limit completeness.
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chapters (8)
- 0:00Introduction to project
- 1:04Project overview and approach
- 5:02Open source tools used
- 7:28Exposure modeling methodology
- 11:00Validation and calculations
- 13:08Output examples and dissemination
- 15:39Challenges and future steps
- 17:10Q&A session
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