Water Features of Saint Helena, Ascension and Tristan da Cunha from OpenStreetMap

OpenStreetMap exports for Saint Helena, Ascension and Tristan da Cunha contain water features tagged with `waterway`, `water`, or `natural=water`. The data includes rivers, streams, canals, lakes, and ponds, and was last updated on 2026-05-14. It is provided by the Humanitarian OpenStreetMap Team (HOT) under the Open Database License (ODbL-1.0).

Use Cases

• Flood-risk modelling based on the distribution of rivers, streams, and water bodies.
• Watershed analysis using the network of waterways and water bodies.
• Creating an environmental basemap context for regional planning using lakes, ponds, and canals.

Strengths

• Covers multiple water feature types including rivers, streams, canals, lakes, and ponds.
• Data is available in multiple geospatial formats including GEOPACKAGE, KML, SHP, and GEOJSON.
• Provided under the permissive ODbL-1.0 license for open use.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Completeness varies by region; remote areas may be incompletely mapped according to the source description.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

OpenStreetMap, exported by the Humanitarian OpenStreetMap Team (HOT)

Collection Method

Volunteer-contributed mapping via the OpenStreetMap platform.

Freshness

Last updated 2026-05-14 23:43:07.412406

Geography

Saint Helena, Ascension and Tristan da Cunha