AI-generated Key Takeaways
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REMA is a high-resolution Digital Surface Model (DSM) of Antarctica, available at 2-meter and 8-meter resolutions.
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It covers the period from 2009 to 2018 and is derived from stereoscopic imagery collected by DigitalGlobe's satellites.
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The dataset is provided by the University of Minnesota Polar Geospatial Center (PGC) and is available in Earth Engine.
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Users must acknowledge NSF support and properly attribute PGC and any third-party data sources when using this dataset.
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REMA provides elevation data and a matchtag band indicating pixel processing information.
- Dataset Availability
- 2009-01-01T00:00:00Z–2018-01-01T00:00:00Z
- Dataset Provider
- University of Minnesota Polar Geospatial Center
- Tags
Description
The Reference Elevation Model of Antarctica (REMA) is a high resolution, time-stamped Digital Surface Model (DSM) of Antarctica at 2-meter and 8-meter spatial resolutions.
Strip DEM files correspond to the overlapping area of the input stereoscopic imagery pair strips as they are collected by DigitalGlobe's constellation of polar-orbiting satellites. Strip DEM dimensions will vary according to the satellite sensor that acquired the images and the off-nadir angle of collection. Most strips are between 13 km and 17 km in width, and 110 km and 120 km in length.
Bands
Pixel Size
2 meters
Bands
| Name | Units | Pixel Size | Description | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
elevation |
m | meters | Elevation |
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matchtag |
meters | Bitmask raster indicating DEM pixels processing |
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Terms of Use
Terms of Use
National Science Foundation (PGC's primary funding source) policy requires researchers to acknowledge NSF support in all publications, web pages, and media interviews.
By using PGC data in Earth Engine, users agree to cite PGC and its sponsorship by the NSF. The original source of any third-party data supplied by PGC must also be properly attributed.
For more information see the PGC's Acknowledgement Policy.
Citations
Howat, I. M., Porter, C., Smith, B. E., Noh, M.-J., and Morin, P.: The Reference Elevation Model of Antarctica, The Cryosphere, 13, 665-674, 2019.
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var collection = ee.ImageCollection('UMN/PGC/REMA/V1/2m'); Map.setCenter(-60, -75, 3); var elevationVis = { bands: ['elevation'], min: -50.0, max: 1000.0, palette: ['0d13d8', '60e1ff', 'ffffff'], }; Map.addLayer(collection, elevationVis, 'REMA_DEM_strips_2m');