Madagascar Waterways from OpenStreetMap for Flood Risk Analysis

Water features across Madagascar exported from OpenStreetMap. The dataset includes rivers, streams, canals, lakes, ponds, and other water bodies tagged with `waterway`, `water`, or `natural=water`. It was last updated on 2026-05-14 and is provided by the Humanitarian OpenStreetMap Team (HOT).

Use Cases

• Model flood-risk based on mapped waterway networks.
• Conduct watershed analysis using the spatial distribution of rivers and streams.
• Create environmental basemaps for contextual analysis of water bodies.

Strengths

• Data is available in multiple geospatial formats (GEOPACKAGE, KML, SHP, GEOJSON, JSON).
• Explicitly includes features tagged with `waterway`, `water`, and `natural=water`.
• Last updated on 2026-05-14, suggesting recent data.

Limitations

• Completeness varies by region; remote areas may be incompletely mapped.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

OpenStreetMap

Collection Method

Volunteer-collaborative mapping.

Freshness

Last updated 2026-05-14 18:33:13.837222

Geography

Madagascar