Waterways of Chad from OpenStreetMap for Flood Risk Modeling

OpenStreetMap data provides a vector map of water features across Chad, including rivers, streams, canals, lakes, and ponds. The dataset is sourced from volunteer mappers via the Humanitarian OpenStreetMap Team and was last updated on 2026-06-22. Coverage is likely more complete in urban areas where mappers have been active.

Use Cases

• Model flood risk based on the mapped network of rivers, streams, and canals.
• Conduct watershed analysis using the spatial distribution of lakes and ponds.
• Create an environmental context basemap for planning using tagged water bodies.

Strengths

• Data is available in multiple geospatial formats including GEOPACKAGE, SHP, and GEOJSON.
• Features are tagged with specific OpenStreetMap keys (`waterway`, `water`, `natural=water`).

Limitations

• Coverage may be sparse in remote areas due to reliance on volunteer mapping efforts.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

OpenStreetMap, a free, collaborative world map.

Collection Method

Volunteer geographic information (VGI) collected by the OpenStreetMap community.

Freshness

Last updated 2026-06-22 19:23:33.650115.

Geography

Chad