2026-08-28T16:26:56Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/RDBTS4.0012026-08-19T22:16:41Zcumulusecsretirednasa_nsidc_daac
RDBTS4.001Likely Basal Thermal State of the Greenland Ice SheetMacGregor, J. A., Fahnestock, M., Catania, G., Paden, J., Gogineni, P., Morlighem, M., Colgan, W., Nowicki, S. M., Clow, G., Aschwanden, A., Price, S. F. & Seroussi, H.Likely Basal Thermal State of the Greenland Ice Sheet2017-02-09Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center1false10.5067/R4MWDWWUWQF9https://nsidc.org/sites/default/files/rdbts4-v001-userguide.pdfRDBTS4Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCESPECTRAL/ENGINEERINGSENSOR CHARACTERISTICSTHERMAL PROPERTIES Geoscientific InformationIB Related-projectIceBridgeIceBridge-related projectNASANSIDCNSIDC DAACThermal PropertiesACORDSAdvanced Coherent Radar Depth SounderICORDSImproved Coherent Radar Depth SounderMCRDSMulti-Channel Radar Depth SounderMCoRDSMultichannel Coherent Radar Depth SounderMODISModerate-Resolution Imaging SpectroradiometerAQUAEarth Observing System, AQUADC-8Douglas DC-8P-3BLockheed P-3B OrionTERRAEarth Observing System, TERRA (AM-1)1993-06-232013-04-26deprecated58.9181.51-88.336.62ContinentNorth AmericaGreenland5 km5 kmVariesTo qualitatively evaluate the four methods’ inferences of the basal thermal state of the GrIS and our synthesis, we use the temperature–depth profiles measured in the six deep boreholes that have associated ice cores (Camp Century, DYE-3, GISP2, GRIP, NEEM, and NorthGRIP). Additional full-thickness borehole temperature profiles exist for the GrIS from its southwestern margin and elsewhere along the margin, and these are also included in our analysis (MacGregor et al. 2016).These 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.EnglishNASA/GSFC/SED/ESDNASA 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 ColoradoBoulderCO80309-0449USAHTTPS37 MBnetCDF-4HTTPSXMLHaran, T., J. Bohlander, T. Scambos, T. Painter, and M. Fahnestock. 2013. MEaSUREs MODIS Mosaic of Greenland 2005 (MOG2005) Image Map, Version 1. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: http://dx.doi.org/10.5067/IAGYM8Q26QRE.
Joughin, I., B. E. 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.
MacGregor, J.A., M.A. Fahnestock, G.A. Catania, A. Aschwanden, G.D. Clow, W.T. Colgan, S.P. Gogineni, M. Morlighem, S.M.J. Nowicki, J.D. Paden, S.F. Price and H. Seroussi. 2016. A synthesis of the basal thermal state of the Greenland Ice Sheet, Journal of Geophysical Research Earth Surface, 121:1328–1350, doi:10.1002/2015JF003808.
MacGregor, J. A., M. A. Fahnestock, G. A. Catania, J. D. Paden, S. P. Gogineni, S. K. Young, S. C. Rybarski, A. N. Mabrey, B. M. Wagman, and M. Morlighem. 2015. Radiostratigraphy and Age Structure of the Greenland Ice Sheet, Journal of Geophysical Research Earth Surface, 120, doi:10.1002/2014JF003215.
Nowicki, S., et al. 2013. Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project II: Greenland, Journal of Geophysical Research: Earth Surface, 118:1025–1044, doi:10.1002/jgrf.20076.The Likely Basal Thermal State of the Greenland Ice Sheet (GrIS) product contains key data sets that show how the likely basal thermal state was inferred from existing airborne and satellite data sets and recent methods, and provides a synthesis mask of the likely basal thermal state over the Greenland Ice Sheet.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/rdbts4-v001-userguide.pdfLikely Basal Thermal State of the Greenland Ice Sheet, Version 1 User GuidePROJECT HOME PAGEhttp://nsidc.org/data/icebridgeIceBridge Product Web SitePROJECT HOME PAGEhttp://www.nasa.gov/mission_pages/icebridge/index.htmlNASA IceBridge MissionCEOS IDN DIFVERSION 9.92017-02-092026-08-19NSIDCVersion SummaryInitial release.NSIDCMinor VersionNSIDCSpatial Reference SystemsEPSG:4326WGS 84NSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationMacGregor, J. A., Fahnestock, M., Catania, G., Paden, J., Gogineni, P., Morlighem, M., Colgan, W., Nowicki, S. M., Clow, G., Aschwanden, A., Price, S. F. & Seroussi, H. (2017). <i>Likely Basal Thermal State of the Greenland Ice Sheet</i>. (RDBTS4, Version 1). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/R4MWDWWUWQF9">https://doi.org/10.5067/R4MWDWWUWQF9</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue