Delivery of new Suomi National Polar-orbiting Partnership (Suomi NPP) satellite observations will cease on November 2, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.Suomi NPP data announcement
Description
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides the first comprehensive, high-resolution, digital mosaics of ice motion in Antarctica assembled from multiple satellite interferometric, synthetic-aperture radar systems. Data were largely acquired during the International Polar Years 2007 to 2009, as well as between 2013 and 2016. Additional data acquired between 1996 and 2016 were used as needed to maximize coverage.
Version 2 includes data acquired from 2011-2016 from RADARSAT-2, Sentinel-1, TerraSAR-X (TSX), and TanDEM-X (TDX). Landsat-8 optical imagery also was integrated into the data to improve coverage. The mosaicking method was updated to make best use of the large number of scenes used for the mosaic. In addition, several new parameters are included for assessing the quality of the data including: the standard deviation of vx and vy for each pixel and count of scenes used for each pixel.
In version 2, coverage increased from 95.1% to 99.6% and a reduction in error was achieved due to the utilization of more data.
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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Rignot, E., Mouginot, J., & Scheuchl, B. (2017). MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/D7GK8F5J8M8R Date Accessed: 2026-10-07
NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: 10.5067/D7GK8F5J8M8R
Rignot, E., Mouginot, J., & Scheuchl, B. (2017). MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/D7GK8F5J8M8R Date Accessed: 2026-10-07
Rignot, Eric, et al. “MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2.” NASA National Snow and Ice Data Center Distributed Active Archive Center, 2017, https://doi.org/10.5067/D7GK8F5J8M8R. Date Accessed: 2026-10-07
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