Lesotho Risk Assessment Indicators: Admin Level 2 Flood and Demographic Data
Updated 3mo ago
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Description
Risk assessment indicators for Lesotho at the admin level 2 (district) scale, specifically designed for flood hazard analysis. Produced by the Heidelberg Institute for Geoinformation Technology (HeiGIT) and updated in March 2026, the data integrates demographic, environmental, and infrastructure layers from WorldPop, OpenStreetMap, and Google Earth Engine.
Use Cases
Mapping healthcare gaps by analyzing population percentages within 30-minute hospital travel times using access_pop_hospitals_30min
Identifying high-risk zones for flood response based on the number of children under 5 (children_u5) and elderly residents (elderly)
Quantifying district-level infrastructure resilience using facility counts for schools and hospitals via education_count and hospitals_count
Strengths
Admin level 2 granularity for all indicators
Integration of specific travel-time accessibility metrics (30, 60, 120 min)
Multi-source validation using WorldPop and OpenStreetMap
Limitations
Potential under-counting of facilities in OpenStreetMap due to volunteer mapping gaps in rural areas
Demographic data is based on modeled WorldPop estimates rather than a direct physical census
Provenance
Source
HeiGIT (Heidelberg Institute for Geoinformation Technology)
Collection Method
Aggregated from open data sources including WorldPop, OSM, and Google Earth Engine via the GAIA Pipeline.
Freshness
Updated as of March 2026.
Geography
Lesotho
Users should join this data with HDX COD-AB boundary files using the ADM2_PCODE key for spatial visualization. The data is licensed under CC-BY-SA.