2024-03-28T23:55:03Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/NSIDC-0478.0022023-11-29T06:18:05Znasa_nsidc_daacecs
NSIDC-0478.002MEaSUREs Greenland Ice Sheet Velocity Map from InSAR DataJoughin, I., B. Smith, I. Howat, and T. Scambos.MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data2015-12-08Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center2true10.5067/OC7B04ZM9G6Qhttps://doi.org/10.5067/OC7B04ZM9G6QNSIDC-0478Joughin, I., B. Smith, I. Howat, T. Scambos, and T. Moon2010Greenland Flow Variability from Ice-Sheet-Wide Velocity MappingJournal of Glaciology56197415-430Literature CitationInvestigatorIanJoughinian@apl.washington.edu1013 NE 40th StreetBox 355640SeattleWA98105USAInvestigatorBenSmithUniversity of WashingtonDepartment of Earth and Space SciencesSeattleWA98195USAInvestigatorIanHowatScott Hall Room 1081090 Carmack RoadColumbusOhio43210USAInvestigatorTedScambosscambos@nsidc.orgNational Snow and Ice Data CenterCIRES, 449 UCBBoulderCO80309-0449USATechnical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCECRYOSPHERESNOW/ICEICE VELOCITY Climatology/Meteorology/AtmosphereGIMP-projectIce VelocityMEaSUREs-projectC-SARC-Band Synthetic Aperture RadarPALSARPhased Array type L-band Synthetic Aperture RadarSARSynthetic Aperture RadarALOSAdvanced Land Observing SatelliteRADARSAT-1SENTINEL-1ASENTINEL-1BTDXTanDEM-XTSXTerraSAR-X2000-09-032001-01-242005-12-132006-04-202006-12-182007-06-062007-09-072008-04-232008-09-152009-06-162009-09-022010-05-072012-11-102013-04-052014-09-012015-05-312015-09-012016-05-312016-09-012017-05-312017-09-012018-05-31complete6083-75-14CONTINENTNORTH AMERICAGREENLAND200 m200 mVaries500 m500 mVariesMEASURESMaking Earth System Data Records for Use in Research EnvironmentsThese data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/use_copyright.html. For more information on the NASA EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.EnglishUWA/APLNASA NSIDC DAACNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daacData Center ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-6199National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAHTTPSGeoTIFFHTTPSJPEGHTTPSShapefileJoughin, I. 1995. Estimation of Ice-Sheet Topography and Motion Using Interferometric Synthetic Aperture Radar. (PhD Dissertation, University of Washington).
Joughin, I. 2002. Ice-Sheet Velocity Mapping: A Combined Interferometric and Speckle-Tracking Approach. Annals of Glaciology 34: 195-201. doi:10.3189/172756402781817978.
Joughin, I., S. Tulaczyk, R. Bindschadler, and S. F. Price. 2002. Changes in West Antarctic Ice Stream Velocities: Observation and Analysis. Journal of Geophyscial Research-Solid Earth, 107(B11), 2289. 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), pp. 415-430, doi: 10.3189/002214310792447734.
Moon, T. and I. Joughin 2008. Retreat and Advance of Greenland Tidewater Glaciers from 1992 to 2007. Journal of Geophysical Research Earth Surface, 113: F02022, doi:10.1029/2007JF000927. 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.
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. J. Geophys Res-Earth 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 seasonal (winter) ice sheet-wide velocity maps for Greenland. The maps are derived from Interferometric Synthetic Aperture Radar (InSAR) data obtained by the Canadian Space Agency's (CSA) RADARSAT-1, the Japan Aerospace Exploration Agency's (JAXA) Advanced Land Observation Satellite (ALOS), and the German Aerospace Center's (DLR) TerraSAR-X/TanDEM-X (TSX/TDX) satellites, as well as from the European Space Agency's (ESA) C-band Synthetic Aperture Radar data from Copernicus Sentinel-1A and -1B.
See <a href="http://nsidc.org/data/measures/gimp">Greenland Ice Mapping Project (GIMP)</a> for related data.VIEW RELATED INFORMATIONhttps://doi.org/10.5067/OC7B04ZM9G6QDocumentationGET DATAhttps://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0478.002/HTTPSGET DATAhttps://search.earthdata.nasa.gov/search?q=NSIDC-0478+V002Earthdata SearchGET RELATED VISUALIZATIONhttps://worldview.earthdata.nasa.gov/?p=arctic&l=BlueMarble_NextGeneration,MEaSUREs_Ice_Velocity_Greenland,Coastlines&t=2000-09-03WorldviewGET DATAhttps://nsidc.org/data/data-access-tool/NSIDC-0478/versions/2/Data Access ToolCEOS IDN DIFVERSION 9.92015-12-082023-11-29NSIDCVersion SummaryFor Version 2, all velocity maps underwent quality control screening to remove erroneous data points. In addition, the following measures were performed:
<ul>
<li>Added new map for 2009/2010.</li>
<li>Added ALOS fine-beam data to improve coverage in 2006/2007, 2007/2008, and 2008/2009.</li>
<li>Corrected a substantial error on Rink glacier where the time interval was off by a factor of 2.</li>
<li>Improved baseline fits for consistency in the interior of the ice sheet.</li>
<li>Updated error estimates to better represent the average behavior of the data.</li>
<li>Added/updated shapefiles of satellite tracks for 2014 to 2018 winters.</li>
<li>Added browse files for 2014 to 2018 winters.</li>
<li>Updated the velocity magnitude (vv) file name.</li>
<li>Changed the missing data value for the velocity magnitude (vv) files to -1 and set it as the attribute in all files.</li>
</ul>NSIDCMinor Version2.1<ul>
<li>Published 2017/2018 data.</li>
<li>Updated/replaced shapefiles for winter 2014-2018 products (corrected the shapefile dates).</li>
<li>Changed the magnitude file name from greenland_vel_mosaic[RRR]_[yyyy_yyyy]_vel_v2.ext to greenland_vel_mosaic[RRR]_[yyyy_yyyy]_vv_v2.ext.</li>
<li>Changed the missing data value for the velocity magnitude (vv) files to -1 and set it as the attribute in all files.</li>
</ul>2014-09-010NSIDCUpdate Frequencyupdated 2018NSIDCCurrent Version1NSIDCSpatial Reference SystemsEPSG:3413WGS 84 / NSIDC Sea Ice Polar Stereographic NorthNSIDCLevel of ServiceComprehensiveNSIDCFull Dataset CitationJoughin, I., B. Smith, I. Howat, and T. Scambos. 2015, updated 2018. <i>MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data.</i> Version 2. [indicate subset used]. Boulder, Colorado USA: NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/OC7B04ZM9G6Q">https://doi.org/10.5067/OC7B04ZM9G6Q</a>. 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