World Bathymetry Base Map Derived from ETOPO2 Elevations

World Bathymetry Base Map tile cache provides global ocean depth and elevation data. The service includes layers for ocean, country, population, and natural features, derived from sources like Natural Earth and the National Geophysical Data Center's ETOPO2 Global 2 Elevations from September 2001. It is hosted by the Australian Ocean Data Network and was last updated on 2026-06-16.

Use Cases

• Create global oceanographic maps based on bathymetry data.
• Analyze coastal and marine features based on natural and population layers.
• Generate base maps for environmental modeling based on elevation and country boundaries.

Strengths

• Derived from authoritative sources including the National Geophysical Data Center (NGDC).
• Includes multiple thematic layers such as ocean, country, population, and natural features.
• Last updated date is explicitly provided as 2026-06-16.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The underlying ETOPO2 elevation data is from September 2001, which may be outdated for some applications.

Provenance

Source

Australian Ocean Data Network, derived from Natural Earth and National Geophysical Data Center (NGDC).

Collection Method

Aggregated from various sources into a tile cache service.

Time Range

Underlying ETOPO2 data is from September 2001.

Freshness

Last updated 2026-06-16 21:35:14.841684; freshness should be verified.

Geography

Global coverage.