SRTM-derived geomorphometric data provides full-coverage elevation, slope, aspect, and curvature layers for the entire Brazilian territory. The database includes primary variables in both continuous and classified forms, plus secondary layers for landforms, watersheds, and solar illumination. Processing was conducted by CEOS_EXTRA using Shuttle Radar Topography Mission data.
Use Cases
- Model watershed delineation and hydrological flow using the elevation and curvature layers.
- Analyze solar energy potential and microclimates with aspect and solar illumination data.
- Classify landforms and assess terrain stability by combining slope, vertical curvature, and horizontal curvature variables.
- Create regional slope and aspect maps for agricultural suitability or conservation planning.
Strengths
- Full national coverage of Brazil's territory.
- Includes both primary (elevation, slope, aspect, curvature) and secondary (landforms, watersheds) derived variables.
Limitations
- Specific row/column counts, spatial resolution, and data volume are unknown.
- Temporal coverage depends on the original SRTM mission, which may be outdated for detecting recent terrain changes.
Provenance
- Source
- CEOS_EXTRA, derived from NASA's Shuttle Radar Topography Mission (SRTM).
- Collection Method
- Processing of SRTM Digital Terrain Model (DTM) to generate local geomorphometric derivations.
- Geography
- Entire territory of Brazil.