• On Wednesday, March 20, from 9:30 a.m. to 12:00 p.m. (US Mountain Time), the following data collections may not be available due to planned system maintenance: ASO, AMSR Unified, AMSR-E, Aquarius, High Mountain Asia, IceBridge, ICESat/GLAS, ICESat-2, LVIS, MEaSUREs, MODIS, Nimbus, SMAP, SnowEx, SSM/I-SSMIS and VIIRS.

ICESat/GLAS

Ice, Cloud, and land Elevation / Geoscience Laser Altimeter System
Data

The following list includes ICESat/GLAS data sets and related products available from the NSIDC DAAC. NOTE: Access to GLAS binary data was removed 01 August, 2017. All GLAS data are available in HDF5 format.

Data for this collection: 15
NAMETEMPORAL COVERAGEPARAMETER(S)
GLAS/ICESat L1A Global Altimetry Data (HDF5), Version 33 (GLAH01)

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WAVEFORM
GLAS/ICESat L1A Global Atmosphere Data (HDF5), Version 33 (GLAH02)

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SENSOR COUNTS
GLAS/ICESat L1A Global Engineering Data (HDF5), Version 33 (GLAH03)

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TOTAL TEMPERATURE
GLAS/ICESat L1A Global Laser Pointing Data (HDF5), Version 33 (GLAH04)

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ATTITUDE CHARACTERISTICSVIEWING GEOMETRY
GLAS/ICESat L1B Global Waveform-based Range Corrections Data (HDF5), Version 34 (GLAH05)

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GLACIER ELEVATION/ICE SHEET ELEVATIONGLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHYICE SHEETSTERRAIN ELEVATION
GLAS/ICESat L1B Global Elevation Data (HDF5), Version 34 (GLAH06)

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GLACIER ELEVATION/ICE SHEET ELEVATIONGLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHYICE ROUGHNESSICE SHEETSREFLECTANCESEA SURFACE HEIGHTSEA SURFACE SLOPESURFACE ROUGHNESSTERRAIN ELEVATION
GLAS/ICESat L1B Global Backscatter Data (HDF5), Version 33 (GLAH07)

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AEROSOL BACKSCATTERSCATTERINGTERRAIN ELEVATION
GLAS/ICESat L2 Global Planetary Boundary Layer and Elevated Aerosol Layer Heights (HDF5), Version 33 (GLAH08)

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AEROSOL PARTICLE PROPERTIESPLANETARY BOUNDARY LAYER HEIGHT
GLAS/ICESat L2 Global Cloud Heights for Multi-layer Clouds (HDF5), Version 33 (GLAH09)

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CLOUD HEIGHTCLOUD VERTICAL DISTRIBUTION
GLAS/ICESat L2 Global Aerosol Vertical Structure Data (HDF5), Version 33 (GLAH10)

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AEROSOL BACKSCATTERAEROSOL EXTINCTIONCLOUD REFLECTANCETRANSMITTANCE
GLAS/ICESat L2 Global Thin Cloud/Aerosol Optical Depths Data (HDF5), Version 33 (GLAH11)

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AEROSOL OPTICAL DEPTH/THICKNESSCLOUD OPTICAL DEPTH/THICKNESS
GLAS/ICESat L2 Global Antarctic and Greenland Ice Sheet Altimetry Data (HDF5), Version 34 (GLAH12)

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GLACIER ELEVATION/ICE SHEET ELEVATIONGLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHYICE SHEETSREFLECTANCE
GLAS/ICESat L2 Sea Ice Altimetry Data (HDF5), Version 34 (GLAH13)

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ICE ROUGHNESSREFLECTANCESEA ICE ELEVATION
GLAS/ICESat L2 Global Land Surface Altimetry Data (HDF5), Version 34 (GLAH14)

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REFLECTANCETERRAIN ELEVATION
GLAS/ICESat L2 Ocean Altimetry Data (HDF5), Version 34 (GLAH15)

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REFLECTANCESEA SURFACE HEIGHTSEA SURFACE SLOPE