2026-10-27T16:55:32Zhttp://nsidc.org/api/dataset/metadata/oai

oai:nsidc.org/IDBMG4.0022026-09-10T20:22:01Zv0_daacv0_allretirednasa_nsidc_daac

IDBMG4.002IceBridge BedMachine GreenlandMorlighem, M., Rignot, E., Mouginot, J., Seroussi, H. & Larour, E.IceBridge BedMachine Greenland2015-05-20Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center2false10.5067/AD7B0HQNSJ29https://nsidc.org/sites/default/files/idbmg4-v002-userguide.pdfIDBMG4Morlighem, M., Rignot, E., Mouginot, J., Seroussi, H. & Larour, E.2015Nature Geoscience7418-422<a href="https://doi.org/10.1038/ngeo2167">https://doi.org/10.1038/ngeo2167</a>Literature CitationTechnical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468

CIRES, 449 UCB

University of Colorado

BoulderCO80309-0449USAEARTH SCIENCECRYOSPHEREGLACIERS/ICE SHEETSGLACIER ELEVATION/ICE SHEET ELEVATION EARTH SCIENCECRYOSPHERESNOW/ICEICE DEPTH/THICKNESS EARTH SCIENCELAND SURFACETOPOGRAPHYTERRAIN ELEVATION ElevationGeoscientific InformationIB Derived Products-project IceBridge-projectMCoRDSMultichannel Coherent Radar Depth SounderNASA DC-8NASA Douglas DC-8P-3BLockheed P-3B Orion1993-01-012014-12-31deprecated6090-8010CONTINENTNORTH AMERICAGREENLAND150150400400OIBOperation Ice BridgeThese data have been retired and are no longer accessible, though a more recent version of these data may be available.These data have been retired and are no longer available for use, though a more recent version of these data may be available. Cite any prior or planned use of these data according to the recommended citation at https://nsidc.org/about/data-use-and-copyright. For more information on the NASA ESDIS Data Use Guidance, see https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance.EnglishUC-IRVINE/PHYSSCI/ESSNASA 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

BoulderCO80309-0449USAHTTPSNetCDFChristensen, E. L., et al. 2000. A low-cost glacier-mapping system, Journal of Glaciology, 46:531. Ettema, J. et al. 2009. Higher surface mass balance of the Greenland Ice Sheet revealed by high-resolution climate modeling. Geophysical Research Letters, 36:1-5. Howat, I.M., A. Negrete, B.E. Smith. 2014. The Greenland Ice Mapping Project (GIMP) land classification and surface elevation datasets, The Cryosphere, 8:1509-1518, doi:10.5194/tc-8-1509-2014. Jakobsson, M., et al. 2012. The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophysical Research Letters, 39(12), doi: 10.1029/2012GL052219. Lindbäck, K., R. Pettersson, S. H. Doyle, C. Helanow, P. Jansson, S. S. Kristensen, L. Stenseng, R. Forsberg, and A. L. Hubbard. 2014. High-resolution ice thickness and bed topography of a land-terminating section of the Greenland Ice Sheet, Earth System Science Data, 6:331-338, doi:10.5194/essd-6-331-2014. Morlighem, M., E. Rignot, J. Mouginot, H. Seroussi and E. Larour. 2014. Deeply incised submarine glacial valleys beneath the Greenland Ice Sheet, Nature Geoscience, 7:418-422. doi:10.1038/ngeo2167. Morlighem, M, E. Rignot, J Mouginot, H. Seroussi, and E. Larour. 2014. High-resolution ice thickness mapping in South Greenland. Annals of Glaciology, 55(67):1-7. Morlighem, M, E. Rignot, J. Mouginot, X. Wu, H. Seroussi, E. Larour, and J. Paden. 2013. High-resolution bed topography mapping of Russell Glacier, Greenland, inferred from Operation IceBridge data. Journal of Glaciology, 59(218):1015-1023. Morlighem, M, E. Rignot, H. Seroussi, E. Larour, H. Ben Dhia, and D. Aubry. 2011. A mass conservation approach for mapping glacier ice thickness. Geophysical Research Letters, 38(L19503):1-6. Rignot, E. and J. Mouginot. 2012. Ice flow in Greenland for the International Polar Year 2008–2009. Geophysical Research Letters, 39:L11501. Schenk, T. and B. A. Csatho, B. 2012. A new methodology for detecting ice sheet surface elevation changes from laser altimetry data. IEEE Transactions on Geoscience and Remote Sensing, 50:3302-3316. Thomsen, H., et al. 1997. The Nioghalvfjerdsfjorden glacier project, north-east Greenland: a study of ice sheet response to climatic change, Geology of Greenland Survey Bulletin, 179:95.

This data set contains bed topography beneath the Greenland Ice Sheet based on mass conservation derived from airborne radar tracks and satellite radar. The data set also includes surface and ice thickness measurements.

VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/idbmg4-v002-userguide.pdfIceBridge BedMachine Greenland, Version 2 User GuideCEOS IDN DIFVERSION 9.92015-05-202026-09-10NSIDCVersion SummaryVersion 2 of the IceBridge BedMachine Greenland data includes improved processing of some basins and adds some Operation IceBridge 2014 data. Heights are now provided with respect to mean sea level, instead of the WGS84 ellipsoid. The geoid is included in an additional field in the data.NSIDCMinor VersionNSIDCSpatial Reference SystemsEPSG:3413WGS 84 / NSIDC Sea Ice Polar Stereographic NorthNSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationMorlighem, M., Rignot, E., Mouginot, J., Seroussi, H. & Larour, E. (2015). <i>IceBridge BedMachine Greenland</i>. (IDBMG4, 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/AD7B0HQNSJ29">https://doi.org/10.5067/AD7B0HQNSJ29</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue