2026-05-25T07:44:57Zhttp://nsidc.org/api/dataset/metadata/oai

oai:nsidc.org/ATL06.0062026-05-01T14:43:23Zcumulusretirednasa_nsidc_daac

ATL06.006ATLAS/ICESat-2 L3A Land Ice HeightSmith, B., Adusumilli, S., Csathó, B. M., Felikson, D., Fricker, H. A., Gardner, A. S., Holschuh, N., Lee, J., Nilsson, J., Paolo, F., Siegfried, M. R., Sutterley, T. & the ICESat-2 Science TeamATLAS/ICESat-2 L3A Land Ice Height2023-05-18Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center6false10.5067/ATLAS/ATL06.006https://nsidc.org/sites/default/files/documents/user-guide/atl06-v006-userguide.pdfATL06Technical 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 Climatology/Meteorology/Atmosphereicesat2-projectATLASAdvanced Topographic Laser Altimeter SystemICESat-2Ice, Cloud, and land Elevation Satellite-22018-10-142025-03-02deprecated-9090-180180GEOGRAPHIC REGIONGLOBAL20 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 EOSDIS Data Use Policy, see [https://earthdata.nasa.gov/earth-observation-data/data-use-policy](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.org1-303-492-6199

National Snow and Ice Data Center

CIRES, 449 UCB

University of Colorado

BoulderCO80309-0449USAHTTPSHDF5

This data set (ATL06) provides geolocated, land-ice surface heights (above the WGS 84 ellipsoid, ITRF2014 reference frame), plus ancillary parameters that can be used to interpret and assess the quality of the height estimates. 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/atl06-v006-userguide.pdfATLAS/ICESat-2 L3A Land Ice Height, Version 6 User GuideCEOS IDN DIFVERSION 9.92023-05-182026-05-01NSIDCVersion SummaryNow processing data for all global land regions. These data are considered experimental, and no quality checks are being performed for the data outside of the polar regions; Dynamically computing the radial component of geolocation uncertainty (sigma_geo_r). Previously, this value was fixed. The uncertainty is calculated for ATL03 (sigma_h) and the value is passed through to ATL06 (sigma_geo_r). Values for the horizontal geolocation uncertainties (sigma_geo_at and sigma_geo_xt) remain at fixed, pessimistic values of 5 m.NSIDCMinor Version1

Data 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 CitationSmith, B., Adusumilli, S., Csathó, B. M., Felikson, D., Fricker, H. A., Gardner, A. S., Holschuh, N., Lee, J., Nilsson, J., Paolo, F., Siegfried, M. R., Sutterley, T. & the ICESat-2 Science Team. (2023). <i>ATLAS/ICESat-2 L3A Land Ice Height</i>. (ATL06, 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/ATL06.006">https://doi.org/10.5067/ATLAS/ATL06.006</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue