GEBCO_2025: Global Terrain Model of Oceans and Land

GEBCO_2025 Grid provides a continuous global terrain model with a spatial resolution of 15 arc seconds, blending land topography with seafloor bathymetry. Its compilation is led by the Seabed 2030 Global Center at the UK's National Oceanography Centre, integrating data from four regional centers. A distinct version includes under-ice topography for Greenland and Antarctica.

Use Cases

• Seafloor mapping based on bathymetric data from the Seabed 2030 Regional Centers.
• Modeling ocean currents and tides using continuous global terrain elevation.
• Studying subglacial topography in polar regions using the under-ice data version.
• Creating visualizations of global land-sea interfaces from the 15 arc-second grid.

Strengths

• Global coverage with a consistent 15 arc-second spatial resolution.
• Integrates data from multiple authoritative sources, including the Nippon Foundation-GEBCO Seabed 2030 Project.
• Provides a specialized version with under-ice topography for polar research.

Limitations

• Metadata for size, row count, license, and author is missing from all provided sources.
• The dataset's presence on multiple platforms suggests importance, but specific update timestamps conflict (one shows 2026-03-25, another shows null).
• Column names and precise data structure are not described.

Provenance

Source

Nippon Foundation-GEBCO Seabed 2030 Project, compiled at the Seabed 2030 Global Center, National Oceanography Centre, UK.

Collection Method

Fusion of land topography (SRTM15+ v2.7) with measured and estimated seafloor topography, incorporating gridded bathymetric data from regional centers.

Time Range

2025 compilation

Freshness

2026-03-25

Geography

Global (oceans and land)