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Description

GLAH11 Level-2 thin cloud/aerosol optical depths data contain thin cloud and aerosol optical depths. A thin cloud is one that does not completely attenuate the lidar signal return, which generally corresponds to clouds with optical depths less than about 2.0. 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
1288 Minute
Concept ID
C2153549738-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
643
Processing Level
2
Published
Science Keywords
Aerosol Optical Depth/Thickness ,
Cloud Optical Depth/Thickness

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 L2 Global Thin Cloud/Aerosol Optical Depths Data (HDF5), Version 33 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ICESAT/GLAS/DATA204 Date Accessed: 2026-08-13

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