dataset · Global
Reference Elevation Model of Antarctica (REMA)
The Reference Elevation Model of Antarctica - 2m GSD Digital Elevation Models (DEMs) and mosaics from 2009 to the present. The REMA project seeks to fill the need for high-resolution time-series elevation data in the Antarctic. The time-dependent nature of the strip DEM files allows users to perform change detection analysis and to compare observations of topography data acquired in different seasons or years. The mosaic DEM tiles are assembled from multiple strip DEMs with the intention of prov
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Licence: [Creative Commons Attribution 4.0 International (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/)
Evidence quality: 49.8
Listed in aws-odr public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- DEM strips (2 m GSD) · DEM mosaics (2 m GSD)
- Coverage docs-verified
- Antarctica · 2009 to present
- Resolution docs-verified
- 2 m GSD
- Update frequency docs-verified
- Strips: twice yearly; mosaics: as soon as available
- Formats docs-verified
- COG · STAC
- Access docs-verified
- Free/open; no AWS account required (anonymous S3 access). Licence: CC BY 4.0
Useful for
- Use cases llm-inferred
- Change detection of Antarctic ice-surface elevation between strip DEMs from different seasons or years · Multi-year elevation comparison for polar infrastructure or research-site terrain baselines · Reference terrain input for GIS-based terrain analysis of Antarctic study areas
- Audience llm-inferred
- GIS analysts · remote sensing specialists · glaciologists and polar researchers
Limitations
- Constraints llm-inferred
- Coverage is Antarctic only, so it has no relevance to UK projects; the ENTRY 'regions: Global' field is inconsistent with the docs · Strip DEMs are updated only twice yearly · Source imagery is from the Maxar commercial constellation, so reuse terms beyond CC BY 4.0 attribution are not covered here · Dataset is file-based (S3/STAC), not an MCP server or API tool
Evidence
- arn:aws:s3:::pgc-opendata-dems/rema/mosaics/, arn:aws:s3:::pgc-opendata-dems/rema/strips/
- https://registry.opendata.aws/pgc-rema/
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.