2026-07-18T05:37:33Zhttp://nsidc.org/api/dataset/metadata/oai
oai:nsidc.org/ATL07.0062026-05-05T20:15:50Zcumulusretirednasa_nsidc_daac
ATL07.006ATLAS/ICESat-2 L3A Sea Ice HeightKwok, R., Petty, A. A., Cunningham, G., Markus, T., Hancock, D., Ivanoff, A., Wimert, J., Bagnardi, M., Kurtz, N. & the ICESat-2 Science TeamATLAS/ICESat-2 L3A Sea Ice Height2023-08-03Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center6false10.5067/ATLAS/ATL07.006https://nsidc.org/sites/default/files/documents/user-guide/atl07-v006-userguide.pdfATL07Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468
CIRES, 449 UCB
University of Colorado
BoulderCO80309-0449USAEARTH SCIENCECRYOSPHERESEA ICESEA ICE ELEVATION Climatology/Meteorology/Atmosphereicesat2-projectATLASAdvanced Topographic Laser Altimeter SystemICESat-2Ice, Cloud, and land Elevation Satellite-22018-10-142025-03-02deprecated-9090-180180GEOGRAPHIC REGIONNORTHERN HEMISPHEREGEOGRAPHIC REGIONSOUTHERN HEMISPHEREVaries91 dayThese 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.EnglishNASA/GSFC/SED/ESD/I2-SIPSNASA 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
BoulderCO80309-0449USAHTTPSHDF5The data set (ATL07) contains along-track heights for sea ice and open water leads (at varying length scales) relative to the WGS84 ellipsoid (ITRF2014 reference frame) after adjustment for geoidal and tidal variations, and inverted barometer effects. Height statistics and apparent reflectance are also provided. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/documents/user-guide/atl07-v006-userguide.pdfATLAS/ICESat-2 L3A Sea Ice Height, Version 6 User GuideCEOS IDN DIFVERSION 9.92023-08-032026-05-05NSIDCVersion SummaryAdded new uncorrected sea ice segment height parameter; Added AMSR2 sea ice concentration data; Implemented land filtering; Added ANC10 ancillary file to read in sea level pressure; Added YAPC parameters; Introduced interpolation and extrapolation routines for ocean tides and mean sea surface (MSS); Updated the PODPPD_flag filter so that a processing option is available for every flag value; Implemented dynamic inverted barometer for processing; read/interpolate sea level pressure directly from ANC10; Added lineage information to the metadata; Updated the MSS variables description, added mentions of the source of the MSS, and clarified the use of the tide free system.NSIDCMinor Version1Data were reprocessed using ITRF2014 (replacing ITRF2020) for consistency across the entire data set.2022-11-132023-10-260NSIDCSpatial Reference SystemsEPSG:4326WGS 84NSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationKwok, R., Petty, A. A., Cunningham, G., Markus, T., Hancock, D., Ivanoff, A., Wimert, J., Bagnardi, M., Kurtz, N. & the ICESat-2 Science Team. (2023). <i>ATLAS/ICESat-2 L3A Sea Ice Height</i>. (ATL07, Version 6). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/ATLAS/ATL07.006">https://doi.org/10.5067/ATLAS/ATL07.006</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue