Elevation

Elevation Datasets

Global digital elevation models for terrain analysis, hydrological modelling, and infrastructure planning.

SRTM

NASA / USGS

v3.0 (void-filled)

Shuttle Radar Topography Mission digital elevation model. Near-global elevation data collected during an 11-day Space Shuttle mission in February 2000.

Coverage

60°N–56°S, 2000 (static snapshot)

Resolution

30m (1 arc-second) & 90m (3 arc-second)

Format

GeoTIFF, HGT

Schema

Single-band raster: elevation in metres above EGM96 geoid

Methodology

Single-pass interferometric SAR from Space Shuttle Endeavour. Version 3 fills voids using auxiliary DEM sources.

Citation

Farr, T. G., et al. (2007). The Shuttle Radar Topography Mission. Rev. Geophys., 45, RG2004.

Copernicus DEM GLO-30

ESA / Airbus

2024 release

Global 30-metre digital surface model derived from the TanDEM-X mission radar data, edited to remove artefacts.

Coverage

Global, 2021 release (updated annually)

Resolution

30m (1 arc-second)

Format

GeoTIFF, COG

Schema

Single-band raster: elevation in metres above EGM2008 geoid

Methodology

Derived from TanDEM-X interferometric SAR with editing for water bodies, forests, and urban structures.