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Description

GLAH07 Level-1B global backscatter data are provided at full instrument resolution. The product includes full 532 nm (41.1 to -1.0 km) and 1064 nm (20 to -1 km) calibrated attenuated backscatter profiles at 5 times per second, and from 10 to -1 km, at 40 times per second for both channels. Also included are calibration coefficient values and molecular backscatter profiles at once per second. Data granules contain approximately 190 minutes (2 orbits) of data. Each data granule has an associated browse product.

Version Description

For information about Version 33, visit the ICESat/GLAS Version History page

Product Summary

Platforms
ICESat
Instruments
ALTIMETERS ,
CD ,
GLAS ,
GPS ,
GPS Receiver ,
LA ,
PC
Spatial Extent

N: 86 S: -86 E: 180 W: -180

Spatial Resolution
60 Meters to 70 Meters x 60 Meters to 70 Meters
Spatial Reference System(s)
ITRF2008 (EPSG:5332)
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
ORBIT
Temporal Extent
2003-02-20 to 2009-10-11
Temporal Resolution
3 Hour
Concept ID
C2153549420-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
4317
Processing Level
1B
Published
Science Keywords
Aerosol Backscatter ,
Scattering ,
Terrain Elevation

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Zwally, H., Schutz, R., Hancock, D., & Dimarzio, J. (2013). GLAS/ICESat L1B Global Backscatter Data (HDF5), Version 33 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ICESAT/GLAS/DATA107 Date Accessed: 2026-09-13

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