2026-08-19T10:26:52Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/ATL15.0022026-08-05T00:16:38Zcumulusecsretirednasa_nsidc_daac
ATL15.002ATLAS/ICESat-2 L3B Gridded Antarctic and Arctic Land Ice Height ChangeSmith, B., Sutterley, T., Dickinson, S., Jelley, B. P., Felikson, D., Neumann, T. A., Fricker, H. A., Gardner, A. S., Padman, L., Markus, T., Kurtz, N., Bhardwaj, S., Hancock, D. & Lee, J.ATLAS/ICESat-2 L3B Gridded Antarctic and Arctic Land Ice Height Change2022-11-03Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center2false10.5067/ATLAS/ATL15.002https://nsidc.org/sites/default/files/documents/user-guide/atl15-v002-userguide.pdfATL15Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCECRYOSPHEREGLACIERS/ICE SHEETSGLACIER ELEVATION/ICE SHEET ELEVATION icesat2-projectATLASAdvanced Topographic Laser Altimeter SystemICESat-2Ice, Cloud, and land Elevation Satellite-22019-03-292022-03-23deprecated5990-180180-90-60-180180GEOGRAPHIC REGIONPOLAR1 km1 km3 month10 km10 km3 month20 km20 km3 month40 km40 km3 monthThese 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 EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.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 ColoradoBoulderCO80309-0449USAHTTPSnetCDF-4This data set (ATL14) and ATL15 bring the time-varying height estimates provided in ATLAS/ICESat-2 L3B Annual Land Ice Height (ATL11) into a gridded format. ATL14 is a high-resolution (100 m) digital elevation model (DEM) that provides spatially continuous gridded data of ice sheet surface height. The data can be used to initialize ice sheet models, as boundary conditions for atmospheric models, or to help with the reduction of other satellite data such as optical imagery or synthetic aperture radar (SAR).
ATL15 provides coarser resolution (1 km, 10 km, 20 km, and 40 km) height-change maps at 3-month intervals, allowing for visualization of height-change patterns and calculation of integrated regional volume change.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/documents/user-guide/atl15-v002-userguide.pdfATLAS/ICESat-2 L3B Gridded Antarctic and Arctic Land Ice Height Change, Version 2 User GuideCEOS IDN DIFVERSION 9.92022-11-032026-08-05NSIDCVersion SummaryThe changes from Versions 1 to 2 include the following:
<ul>
<li>Extend temporal coverage through cycle 14</li>
<li>Include one independent bias parameter for each RGT, cycle, and beam pair in the bias model</li>
<li>In all regions except Antarctica, use minimum error estimate for every unique crossover</li>
<li>Apply a time-variable ice mask, as reflected in the ice_area variable</li>
<li>Achieve tile-to-tile matching using linear constraint at tile edges</li>
<li>Decrease computation tile size to 61x61 km, and compute tiles in two stages instead of three</li>
</ul>NSIDCMinor VersionNSIDCSpatial Reference SystemsEPSG:3031WGS 84 / Antarctic Polar StereographicEPSG:3413WGS 84 / NSIDC Sea Ice Polar Stereographic NorthNSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationSmith, B., Sutterley, T., Dickinson, S., Jelley, B. P., Felikson, D., Neumann, T. A., Fricker, H. A., Gardner, A. S., Padman, L., Markus, T., Kurtz, N., Bhardwaj, S., Hancock, D. & Lee, J. (2022). <i>ATLAS/ICESat-2 L3B Gridded Antarctic and Arctic Land Ice Height Change</i>. (ATL15, 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/ATLAS/ATL15.002">https://doi.org/10.5067/ATLAS/ATL15.002</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue