Tuvalu Waterways from OpenStreetMap for Flood Risk Modeling

OpenStreetMap exports provide water features across Tuvalu, including rivers, streams, canals, lakes, and ponds. The data is compiled by the Humanitarian OpenStreetMap Team (HOT) and was last updated on 2026-05-15. Completeness varies by region, with urban areas typically better mapped than remote locations.

Use Cases

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

Strengths

• Data is available in multiple geospatial formats including GEOPACKAGE, SHP, and GEOJSON.
• Explicitly includes features tagged with `waterway`, `water`, or `natural=water`.

Limitations

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

Provenance

Source

OpenStreetMap

Collection Method

Volunteer-collaborative mapping

Freshness

Last updated 2026-05-15 09:26:11.938823

Geography

Tuvalu