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cog earth observation elevation geospatial mapping open source software satellite imagery stac


EarthDEM - 2m GSD Digital Elevation Models (DEMs) and mosaics from 2002 to the present. The EarthDEM project seeks to fill the need for high-resolution time-series elevation data in non-polar regions. 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 providing a more consistent and comprehensive product over large areas. EarthDEM data is constructed from in-track and cross-track high-resolution (~0.5 meter) imagery acquired by the Maxar constellation of optical imaging satellites. Only a portion of the worldwide EarthDEM dataset is available publicly. Federally-funded researchers may access the entire dataset via NASA CSDA's Smallsat Data Explorer (see Data at Work section).

Update Frequency

New DEM strips are added when allowed by licensing restrictions. Mosaic products are added as soon as they are available.


Creative Commons Attribution 4.0 International (CC BY 4.0)


Managed By

See all datasets managed by Polar Geospatial Center.


How to Cite

EarthDEM was accessed on DATE from See PGC's acknowledgement policy

Usage Examples

Tools & Applications

Resources on AWS

  • Description
    EarthDEM DEM Strips
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    AWS Region
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://pgc-opendata-dems/earthdem/strips/
    Browse STAC Catalog

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