2026-08-28T16:27:23Zhttp://nsidc.org/api/dataset/metadata/oai

oai:nsidc.org/GLAH06.0332026-04-16T19:16:34Zcumulusretirednasa_nsidc_daac

GLAH06.033GLAS/ICESat L1B Global Elevation Data (HDF5)Hancock, D., Schutz, R. & Dimarzio, J.GLAS/ICESat L1B Global Elevation Data (HDF5)2012-12-26Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center33false10.5067/ICESAT/GLAS/DATA106https://nsidc.org/sites/default/files/multi-glah01-v033-v034-userguide_0.pdfGLAH06Technical 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 EARTH SCIENCECRYOSPHEREGLACIERS/ICE SHEETSGLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHY EARTH SCIENCECRYOSPHERESEA ICEICE ROUGHNESS EARTH SCIENCECRYOSPHEREGLACIERS/ICE SHEETSICE SHEETS EARTH SCIENCECRYOSPHERESEA ICEREFLECTANCE EARTH SCIENCEOCEANSSEA SURFACE TOPOGRAPHYSEA SURFACE HEIGHT EARTH SCIENCEOCEANSSEA SURFACE TOPOGRAPHYSEA SURFACE SLOPE EARTH SCIENCELAND SURFACETOPOGRAPHYSURFACE ROUGHNESS EARTH SCIENCELAND SURFACETOPOGRAPHYTERRAIN ELEVATION ElevationAltimetryAtmospheric Delay CorrectionBackscatterDAACDemEOSDISGLA06GLASGlobal Positioning SystemGPSICESatISIPSLaser FootprintLaser PulseLidarNASANoise LevelNSIDCOff-nadir Pointing DirectionOrbit NumberPrecision Attitude DeterminationPrecision Orbit DeterminationRangeReceived EnergyReceived Pulse GainSignal SaturationTransmitted EnergyTransmitted GainWaveformWaveform KurtosisWaveform SkewnessGLASGeoscience Laser Altimeter SystemICESatIce, Cloud and Land Elevation Satellite2003-02-202009-10-11deprecated-8686-180180GEOGRAPHIC REGIONGLOBALEach data granule has associated browse products that users can quickly view to determine the general quality of the data in the granule. Altimeter Frame Quality Flag is included in file level global attributes and includes a corrections flag. Indicates if all data in frame are good with appropriate corrections applied; or if some of data are not corrected or have measurement problems.These 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/EOS/EONASA 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

BoulderCO80309-0449USAFTP6 MBHDFBae, S. and B.E. Schutz. 2002. Precision attitude determination (PAD). GLAS algorithm theoretical basis document. Version 2.2. Austin, TX: Center for Space Research, University of Texas at Austin. Brenner, A.C., C.R. Bentley, B.M. Csatho, D.J. Harding, M.A. Hofton, J. Minster, L. Roberts, J.L. Saba, R. Schutz, R.H. Thomas, D. Yi, and H.J. Zwally. 2000. Derivation of range and range distributions from laser pulse waveform analysis for surface elevations, roughness, slope, and vegetation heights. Algorithm theoretical basis document. Version 3.0. Greenbelt, MD: Goddard Space Flight Center. Center for Space Research. 'ICESat/GLAS.' January 2002. http://www.csr.utexas.edu/glas/. Davis C.H. and H.J. Zwally. 1993. Geographic and seasonal variations in the surface properties of the ice sheets by satellite radar altimetry. Journal of Glaciology 39:687-697. Earth Science Data and Information System (ESDIS). 1996. EOS Ground System (EGS) Systems and Operations Concept. Greenbelt, MD: Goddard Space Flight Center. Farrell, W.E. 1972. Deformation of the Earth by surface loads. Review of Geophysics and Space Physics 10: 761-797. GLAS Science Team. 2000. Mission Operations Requirement Document (MORD) for the Ice, Cloud and Land Elevation Satellite (ICESat) Mission. Greenbelt, MD: Goddard Space Flight Center. GLAS Science Team. 1997. GLAS Science Requirements. Version 2.01. Greenbelt, MD: Goddard Space Flight Center. Heroux, D. 2000. Progress report on GLAS interface effort with ECS NOSE. Rev. 29 December 2000. Landover, MD: Emergent-IT/Raytheon. Herring, T.A. and K. Quinn. 1999. Atmospheric delay correction to GLAS laser altimeter ranges. GLAS algorithm theoretical basis document. Version 1.0. Lanham, MD: Science Systems and Applications, Inc. Jester, P., and D. Hancock. 2002. The Algorithm Theoretical Basis Document for Level 1A Processing, Version 1.2. Wallops Island, VA: Raytheon ITSS. Jester, P., and J. Lee. 2002. GLAS standard data products specification - level 1. Version 6.0. Wallops Island, VA: Raytheon ITSS. Lee, J. 2002. GSAS user's guide: Version 4.0. Wallops Island, VA: Raytheon ITSS. McGarry, J.F., J. Abshire, X. Sun, J. Saba, A. Brenner, and D. Yi. 2002. GLAS flight science data selection algorithms for the altimeter (1064 nm), Version 4.15. Unpublished report. Rim, H., and B. Schutz. 2002. Precision orbit determination. GLAS algorithm theoretical basis document. Version 2.2. Austin, TX: Center for Space Research, University of Texas at Austin. Schutz, B. 2000. GLAS altimeter post-launch calibration/validation plan. Version 0.99. Austin, TX: Center for Space Research, University of Texas at Austin. Schutz, B. 2002. Laser footprint location (geolocation) and surface profiles. GLAS algorithm theoretical basis document. Version 3.0. Austin, TX: Center for Space Research, University of Texas at Austin. Wahr, J., D. Wingham, and C. Bentley. 2000. A method of combining ICESat and GRACE satellite data to constrain Antarctic mass balance. Journal of Geophysical Research 105(B7):16,279-16,294. Yi, D., J. Minster, and C. Bentley. 1999. Ocean tidal loading corrections. GLAS algorithm theoretical basis document. Version 1.0. Greenbelt, MD: Goddard Space Flight Center. Zwally, H.J., B. Schutz, W. Abdalati, J. Abshire, C. Bentley, A. Brenner, J. Bufton, J. Dezio, D. Hancock, D. Harding, T. Herring, B. Minster, K. Quinn, S. Palm, J. Spinhirne, and R. Thomas. 2002. ICESAT's laser measurements of polar ice, atmosphere, ocean, and land. Journal of Geodynamics 34: 405-445. Zwally, H.J., B. Schutz, D. Hancock, and A. Brenner. 2000. ICESat/GLAS Standard Data Products in HDF and SCF Formats. Version 1.2. Greenbelt, MD: Goddard Space Flight Center. Zwally, H.J., R.A. Bindschadler, A.C. Brenner, T.V. Martin, and R.H. Thomas. 1983. Surface elevation contours of Greenland and Antarctic ice sheets. Journal of Geophysical Research 88(C3):1589-1596.

GLAH06 Level-1B Global Elevation is a product that is analogous to the geodetic data records distributed for radar altimetry missions. It contains elevations previously corrected for tides, atmospheric delays, and surface characteristics within the footprint. Elevation is calculated using the ice sheet parameterization. Additional information allows the user to calculate an elevation based on land, sea ice, or ocean algorithms. Each data granule has an associated browse product.

VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/multi-glah01-v033-v034-userguide_0.pdfGLAS/ICESat L1B Global Elevation Data (HDF5), Version 33 User GuidePROJECT HOME PAGEhttp://glas.wff.nasa.gov/ICESat/GLAS web site at NASA Wallops Flight FacilityPROJECT HOME PAGEhttp://icesat.gsfc.nasa.gov/ICESat/GLAS web site at NASA Goddard Space Flight CenterPROJECT HOME PAGEhttp://www.csr.utexas.edu/glas/ICESat/GLAS web site at University of TexasVIEW RELATED INFORMATIONhttp://nsidc.org/data/icesat/index.htmlICESat/GLAS Data at NSIDCVIEW RELATED INFORMATIONhttp://nsidc.org/data/dems/index.htmlPolar Ice Sheet DEMs and Elevation DataUSA/NASACEOS IDN DIFVERSION 9.92012-12-262026-04-16NSIDCVersion SummaryFor information about Version 33, visit the ICESat/GLAS Version History page: https://nsidc.org/data/icesat/version-history.NSIDCMinor VersionNSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationHancock, D., Schutz, R. & Dimarzio, J. (2012). <i>GLAS/ICESat L1B Global Elevation Data (HDF5)</i>. (GLAH06, Version 33). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/ICESAT/GLAS/DATA106">https://doi.org/10.5067/ICESAT/GLAS/DATA106</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue