GLAS/ICESat L1A Global Atmosphere Data, Version 33
NOTE ON GLAS BINARY DATA: Access to all ICESat/GLAS binary data products at NSIDC DAAC was removed 01 August 2017.The Binary Data Subsetter also has been decommissioned.ICESat/GLAS data remain available in HDF5 format. The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and La...
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dataone:sha256:351c269d96d2a6e1e047620a549e30c84bd61b874dfb46d603ff8daa10d8d519 2024-10-03T18:46:11+00:00 GLAS/ICESat L1A Global Atmosphere Data, Version 33 NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center BEGINDATE: 2003-02-20T00:00:00Z ENDDATE: 2009-10-11T00:00:00Z 2023-11-29T00:00:07Z https://search.dataone.org/view/sha256:351c269d96d2a6e1e047620a549e30c84bd61b874dfb46d603ff8daa10d8d519 unknown Dataset dataone:urn:node:NSIDC 2024-10-03T18:20:12Z NOTE ON GLAS BINARY DATA: Access to all ICESat/GLAS binary data products at NSIDC DAAC was removed 01 August 2017.The Binary Data Subsetter also has been decommissioned.ICESat/GLAS data remain available in HDF5 format. The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and thickness, cloud and atmospheric properties, land topography, vegetation canopy heights, ocean surface topography, and surface reflectivity. GLAS has a 1064 nm laser channel for surface altimetry and dense cloud heights, and a 532 nm lidar channel for the vertical distribution of clouds and aerosols. Level-1A atmospheric data (GLA02) include the normalized relative backscatter for the 532 nm and 1064 nm channels, and low-level instrument corrections such as laser energy (1064 nm and 532 nm), photon coincidence (532 nm), and detector gain correction (1064 nm). Each data granule has an associated browse product that users can quickly view to determine the general quality of the data in the granule. Browse products consist of image plots of key parameters and statistics. Data are in scaled integer binary format, big-endian (Unix) byte order. Dataset Ice Sheet Sea ice Unknown |
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Open Polar |
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Unknown |
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dataone:urn:node:NSIDC |
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unknown |
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NOTE ON GLAS BINARY DATA: Access to all ICESat/GLAS binary data products at NSIDC DAAC was removed 01 August 2017.The Binary Data Subsetter also has been decommissioned.ICESat/GLAS data remain available in HDF5 format. The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and thickness, cloud and atmospheric properties, land topography, vegetation canopy heights, ocean surface topography, and surface reflectivity. GLAS has a 1064 nm laser channel for surface altimetry and dense cloud heights, and a 532 nm lidar channel for the vertical distribution of clouds and aerosols. Level-1A atmospheric data (GLA02) include the normalized relative backscatter for the 532 nm and 1064 nm channels, and low-level instrument corrections such as laser energy (1064 nm and 532 nm), photon coincidence (532 nm), and detector gain correction (1064 nm). Each data granule has an associated browse product that users can quickly view to determine the general quality of the data in the granule. Browse products consist of image plots of key parameters and statistics. Data are in scaled integer binary format, big-endian (Unix) byte order. |
format |
Dataset |
author |
NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center |
spellingShingle |
NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center GLAS/ICESat L1A Global Atmosphere Data, Version 33 |
author_facet |
NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center |
author_sort |
NASA National Snow and Ice Data Center Distributed Active Archive Center |
title |
GLAS/ICESat L1A Global Atmosphere Data, Version 33 |
title_short |
GLAS/ICESat L1A Global Atmosphere Data, Version 33 |
title_full |
GLAS/ICESat L1A Global Atmosphere Data, Version 33 |
title_fullStr |
GLAS/ICESat L1A Global Atmosphere Data, Version 33 |
title_full_unstemmed |
GLAS/ICESat L1A Global Atmosphere Data, Version 33 |
title_sort |
glas/icesat l1a global atmosphere data, version 33 |
publishDate |
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url |
https://search.dataone.org/view/sha256:351c269d96d2a6e1e047620a549e30c84bd61b874dfb46d603ff8daa10d8d519 |
op_coverage |
BEGINDATE: 2003-02-20T00:00:00Z ENDDATE: 2009-10-11T00:00:00Z |
genre |
Ice Sheet Sea ice |
genre_facet |
Ice Sheet Sea ice |
_version_ |
1811925447096664064 |