2026-08-28T16:26:47Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/ATL11.0032026-04-06T19:16:24Zcumulusretirednasa_nsidc_daac
ATL11.003ATLAS/ICESat-2 L3B Annual Land Ice HeightSmith, B., Dickinson, S., Jelley, B. P., Neumann, T. A., Hancock, D., Lee, J. & Harbeck, K.ATLAS/ICESat-2 L3B Annual Land Ice Height2021-04-29Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center3false10.5067/ATLAS/ATL11.003https://nsidc.org/sites/default/files/atl11-v003-userguide.pdfATL11Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCECRYOSPHEREGLACIERS/ICE SHEETSGLACIER ELEVATION/ICE SHEET ELEVATION Climatology/Meteorology/AtmosphereImagery/Base Maps/Earth Covericesat2-projectATLASAdvanced Topographic Laser Altimeter SystemICESat-2Ice, Cloud, and land Elevation Satellite-22019-03-292020-12-24deprecated-9090-180180GEOGRAPHIC REGIONPOLAR60 m91 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 provides time series of land-ice surface heights derived from the ICESat-2 ATL06 Land-ice Height product. It is intended primarily as an input for higher level gridded products, but can also be used on its own as a spatially organized product that allows easy access to height-change information derived from ICESat-2 observations.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/atl11-v003-userguide.pdfATLAS/ICESat-2 L3B Annual Land Ice Height, Version 3 User GuideCEOS IDN DIFVERSION 9.92021-04-292026-04-06NSIDCVersion SummaryAddition of new parameter pt[x]/ref_surf/geoid_h, a weighted average of the geoid_h parameter from ATL06. This allows users to compare ATL11 height estimates to an approximation of local sea level; Addition of root attribute short_name; Modifications in quality assurance to allow for partial population of beam pair groups; Modification of ancilliary_data to correctly reflect ATL11 release and version numbers; Correction of /orbit_info/sc_orient_time as the dimension scale in that group; Addition of missing root level attributes; Modification of long_name of /pt[x]/crossing_track_data/h_corr to read ‘corrected height’; Bug fix that prevented the dynamic atmosphere correction from being calculated for along-track data.NSIDCMinor VersionNSIDCSpatial Reference SystemsEPSG:4326WGS 84NSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationSmith, B., Dickinson, S., Jelley, B. P., Neumann, T. A., Hancock, D., Lee, J. & Harbeck, K. (2021). <i>ATLAS/ICESat-2 L3B Annual Land Ice Height</i>. (ATL11, Version 3). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/ATLAS/ATL11.003">https://doi.org/10.5067/ATLAS/ATL11.003</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue