I would like to know if there is already available mosaiced* DEM (digital elevation model) raster for the entire globe?

On this site, they provide this data from the Shuttle Radar Topography Mission but it does not include the Arctic.

*Mosaiced means multiple raster images are stitched together.

migrated from gis.stackexchange.com May 20 at 10:57

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The Nasa JPL hosts continent-scale mosaic DEMs (with voids corrected), and you can access using the Google Earth Engine API:

For example: https://developers.google.com/earth-engine/datasets/catalog/USGS_SRTMGL1_003

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