2026-08-25T23:20:09Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/ATL12.0062026-05-05T20:15:49Zcumulusretirednasa_nsidc_daac
ATL12.006ATLAS/ICESat-2 L3A Ocean Surface HeightMorison, J. H., Hancock, D., Dickinson, S., Robbins, J., Roberts, L., Kwok, R., Palm, S. P., Smith, B., Jasinski, M. F. & the ICESat-2 Science TeamATLAS/ICESat-2 L3A Ocean Surface Height2023-05-18Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center6false10.5067/ATLAS/ATL12.006https://nsidc.org/sites/default/files/documents/user-guide/atl12-v006-userguide.pdfATL12Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCEOCEANSSEA SURFACE TOPOGRAPHYSEA SURFACE HEIGHT Climatology/Meteorology/Atmosphereicesat2-projectATLASAdvanced Topographic Laser Altimeter SystemICESat-2Ice, Cloud, and land Elevation Satellite-22018-10-132025-03-02deprecated-9090-180180GEOGRAPHIC REGIONGLOBAL OCEAN91 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.org1-303-492-6199National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAHTTPSHDF5This data set (ATL12) contains along-track sea surface height of the global open ocean, including the ice-free seasonal ice zone and near-coast regions. Estimates of height distributions, significant wave height, sea state bias, and 10 m heights 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/atl12-v006-userguide.pdfATLAS/ICESat-2 L3A Ocean Surface Height, Version 6 User GuideCEOS IDN DIFVERSION 9.92023-05-182026-05-05NSIDCVersion SummaryFixed an error in the surface type percentage calculation; Updated the ATL12 template; Added several parameters for quality assessment.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 CitationMorison, J. H., Hancock, D., Dickinson, S., Robbins, J., Roberts, L., Kwok, R., Palm, S. P., Smith, B., Jasinski, M. F. & the ICESat-2 Science Team. (2023). <i>ATLAS/ICESat-2 L3A Ocean Surface Height</i>. (ATL12, 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/ATL12.006">https://doi.org/10.5067/ATLAS/ATL12.006</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue