2026-08-29T13:54:12Zhttp://nsidc.org/api/dataset/metadata/oai

oai:nsidc.org/NSIDC-0731.0022026-08-19T22:16:31Zcumulusecsretirednasa_nsidc_daac

NSIDC-0731.002MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and LandsatJoughin, I.MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat2020-12-16Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center2false10.5067/11MJZGPBK3ZFhttps://nsidc.org/sites/default/files/nsidc-0731-v002-userguide.pdfNSIDC-0731Joughin, I., Smith, B., Howat, I., Scambos, T. & Moon, T.2010Journal of Glaciology56197415-430<a href="https://doi.org/10.3189/002214310792447734">https://doi.org/10.3189/002214310792447734</a>Literature CitationJoughin, I., Smith, B. & Howat, I.2018The Cryosphere1272211-2227<a href="https://doi.org/10.5194/tc-12-2211-2018">https://doi.org/10.5194/tc-12-2211-2018</a>Literature CitationInvestigatorIanJoughinian@apl.washington.edu

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BoulderCO80309-0449USAEARTH SCIENCECRYOSPHERESNOW/ICEICE VELOCITY Climatology/Meteorology/AtmosphereGIMP-projectMEaSUREs-projectC-SARC-Band Synthetic Aperture RadarOLIOperational Land ImagerSARSynthetic Aperture RadarLANDSAT-8LANDSAT-8SENTINEL-1ASENTINEL-1ASENTINEL-1BSENTINEL-1BTDXTanDEM-XTSXTerraSAR-X2014-12-012019-11-30deprecated6083-75-14CONTINENTNORTH AMERICAGREENLAND200 m200 m1 monthThese data have been retired and are no longer available to access.These data have been retired and are no longer available to access.EnglishASFNASA NSIDC DAACNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daacData Center ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-6199

National Snow and Ice Data Center

CIRES, 449 UCB

University of Colorado

BoulderCO80309-0449USAHTTPSGeoTIFFHTTPSJPEGHTTPSShapefileJoughin, I. 1995. Estimation of Ice-Sheet Topography and Motion Using Interferometric Synthetic Aperture Radar. Ph.D. Dissertation, University of Washington. Joughin, I. 2002. Ice-Sheet Velocity Mapping: A Combined Interferometric and Speckle-Tracking Approach. Annals of Glaciology 34: 195-201. Joughin, I., S. Tulaczyk, R. Bindschadler, and S. F. Price. 2002. Changes in West Antarctic Ice Stream Velocities: Observation and Analysis. Journal of Geophysical Research - Solid Earth 107(B11): EPM 3-1–EPM 3-22. doi: 10.1029/2001JB001029. Joughin, I., W. Abdalati, and M. Fahnestock. 2004. Large Fluctuations in Speed on Greenland's Jakobshavn Isbrae Glacier. Nature 432(7017): 608-610. doi: 10.1038/nature03130. Joughin, I., B. Smith, I. M. Howat, T. Scambos, and T. Moon. 2010. Greenland Flow Variability from Ice-Sheet-Wide Velocity Mapping. Journal of Glaciology 56(197): 415-430. Moon, T. and I. Joughin 2008. Retreat and Advance of Greenland Tidewater Glaciers from 1992 to 2007. Journal of Geophysical Research - Earth Surface 113: Art. #F02022. doi: 10.1029/2007JF000927. Phillips, T., H. Rajaram, W. Colgan, K. Steffen, and W. Abdalati. 2013. Evaluation of cryo-hydrologic warming as an explanation for increased ice velocities in the wet snow zone, Sermeq Avannarleq, West Greenland. Journal of Geophysical Research - Earth Surface 118(3): 1241-1256. doi:http://dx.doi.org/10.1002/jgrf.20079. Rignot, E. and P. Kanagaratnam. 2006. Changes in the Velocity Structure of the Greenland Ice Sheet. Science 311(5763): 986-990. doi:10.1126/science.1121381.

This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains quarterly (three-month interval) ice velocity mosaics for the Greenland Ice Sheet. This product is derived from Synthetic Aperture Radar (SAR) data obtained by the German Aerospace Center's (DLR) TerraSAR-X/TanDEM-X (TSX/TDX) and the European Space Agency's (ESA) Copernicus Sentinel-1A and -1B satellites, and from the US Geological Survey's (USGS) Landsat 8 optical imagery. See <a href="http://nsidc.org/data/measures/gimp">Greenland Ice Mapping Project (GIMP)</a> for related data.

VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/nsidc-0731-v002-userguide.pdfMEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat, Version 2 User GuideCEOS IDN DIFVERSION 9.92020-12-162026-08-19NSIDCVersion SummaryThe following represent key updates as of Version 2. For a detailed list of the differences between versions 1 and 2, refer to the User Guide. Data set temporal resolution now runs through 30 November 2019. Application of a new DEM: NSIDC-0715 Addition of dT GeoTIFFs, a temporal offset parameter. Removal of bad data and addition of overlooked data. As a result, mosaics show more areas with no data, the min/max ex and ey values are lower and feature counts differ. Cloud-optimized GeoTIFFs along with auxiliary files now availableNSIDCMinor VersionNSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationJoughin, I. (2020). <i>MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat</i>. (NSIDC-0731, Version 2). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/11MJZGPBK3ZF">https://doi.org/10.5067/11MJZGPBK3ZF</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue