Chad Risk Assessment Indicators: Admin Level 2 Flood and Service Access

HeiGIT provides risk assessment indicators for Chad at the admin level 2 (district) scale, derived from the GAIA Pipeline using WorldPop and OpenStreetMap data. The dataset includes demographic, infrastructure, and flood exposure metrics across seven thematic layers updated as of March 2026. It is designed to support disaster resilience analysis and structured risk assessments for flood hazards.

Use Cases

• Flood risk modeling using TCD_ADM2_flood_exposure to identify high-risk districts
• Healthcare accessibility analysis using access_pop_hospitals_30min to identify underserved populations
• Demographic vulnerability mapping using children_u5 and female_pop counts

Strengths

• Admin level 2 granularity for all indicators
• Standardized ADM2_PCODE join keys for HDX COD-AB compatibility
• Multi-source integration of WorldPop and OpenStreetMap

Limitations

• Potential data gaps in rural areas due to OpenStreetMap dependency
• Lack of specific metadata for the flood_exposure layer columns

Provenance

Source

HeiGIT (Heidelberg Institute for Geoinformation Technology)

Collection Method

Aggregated via the GAIA Pipeline using WorldPop, OpenStreetMap, and Google Earth Engine

Freshness

Updated as of March 2026.

Geography

Chad (Admin Level 2)