2026-10-30T07:28:48Zhttp://nsidc.org/api/dataset/metadata/oai

oai:nsidc.org/ATL06.0032026-03-24T18:05:28Zcumulusretirednasa_nsidc_daac

ATL06.003ATLAS/ICESat-2 L3A Land Ice HeightSmith, B., Fricker, H. A., Gardner, A. S., Siegfried, M. R., Adusumilli, S., Csathó, B. M., Holschuh, N., Nilsson, J., Paolo, F. & the ICESat-2 Science TeamATLAS/ICESat-2 L3A Land Ice Height2020-05-05Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center3false10.5067/ATLAS/ATL06.003https://nsidc.org/sites/default/files/atl06-v003-userguide_1.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-22018-10-142020-11-11deprecated-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 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

BoulderCO80309-0449USAHTTPSHDF5

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/atl06-v003-userguide_1.pdfATLAS/ICESat-2 L3A Land Ice Height, Version 3 User GuideCEOS IDN DIFVERSION 9.92020-05-052026-03-24NSIDCVersion SummaryATL09 pass-through data (cloud flag parameters) are now being written to ATL06 (gt[x]/land_ice_segments/geophysical/layer_flag). Note that if two flags intersect an ATL06 segment, the higher flag value is used. The layer_flag parameter is important for predicting forward scattering; The large DEMs previously used by ATL06 are no longer required inputs. If they are provided in the processing control file, the values are queried as in previous releases; if the DEMs are not provided in the control file, DEM values from ATL03 are used; Molecular transmission used to compute effective background is now being read from ATL09. Prior versions used a default value; Added radial orbit error as gt[x]/land_ice_segments/ground_track/sigma_geo_r (parameter sigma_h from ATL03); ATL03 data flagged with non-zero values in podppd_flag are no longer processed for ATL06; Changed the residual histograms to range from -50m to +50m with varying bin sizes; Corrected the long names for sigma_geo_at and sigma_geo_xt in the ATL06 file metadata; Residual histograms are centered on h_mean instead of h_li.NSIDCMinor VersionNSIDCSpatial Reference SystemsEPSG:4326WGS 84NSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationSmith, B., Fricker, H. A., Gardner, A. S., Siegfried, M. R., Adusumilli, S., Csathó, B. M., Holschuh, N., Nilsson, J., Paolo, F. & the ICESat-2 Science Team. (2020). <i>ATLAS/ICESat-2 L3A Land Ice Height</i>. (ATL06, 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/ATL06.003">https://doi.org/10.5067/ATLAS/ATL06.003</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue