Data Set ID:

GLAS/ICESat L1B Global Elevation Data (HDF5), Version 34

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.

Version Summary:

Release 34 incorporates fixes for several data issues that were determined to exist in the GLAS Release 33 data products.

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Reverb: NASA search and order tool for subsetting, reprojecting, and reformatting data.

Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: 86, S: -86, E: 180, W: -180

Spatial Resolution:
  • 60 m to 70 m x 60 m to 70 m
Temporal Coverage
  • 2003-02-20 to 2009-10-11
Temporal Resolution:
23 minute
  • Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
  • Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography
  • Sea Ice > Ice Roughness
  • Glaciers/Ice Sheets > Ice Sheets
  • Sea Ice > Reflectance > Laser Reflectance
  • Surface Radiative Properties > Reflectance > Laser Reflectance
  • Sea Surface Topography > Sea Surface Height
Data Format(s):
  • HDF
Data Contributor(s): David Hancock, H. Zwally, Robert Schutz, John Dimarzio

Data Citation

As a condition of using this data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Zwally, H. J., R. Schutz, J. Dimarzio, and D. Hancock. 2014. GLAS/ICESat L1B Global Elevation Data (HDF5), Version 34. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. [Date Accessed].

Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA