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Description

ATL04 contains along-track normalized relative backscatter profiles of the atmosphere. The product includes full 532 nm (14 km) uncalibrated attenuated backscatter profiles at 25 times per second for vertical bins of approximately 30 meters. Calibration coefficient values derived from data within the polar regions are also included. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory.

Version Description

Changes for this version include the addition of parameters, changed parameter names, and changed parameter descriptions. See the User Guide for a complete list of changes.

Product Summary

Platforms
ICESat-2
Instruments
ATLAS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
280 Meters
Spatial Reference System(s)
WGS 84 (EPSG:4326)
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
ORBIT
Temporal Extent
2018-10-13 to 2021-07-15
Temporal Resolution
91 Day
Concept ID
C4102138656-NSIDC_CPRD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
2A
Published
Science Keywords
Lidar Backscatter

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

Palm, S., Yang, Y., Herzfeld, U., Hancock, D., Barbieri, K., Wimert, J., & the ICESat-2 Science Team. (2021). ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles, Version 4 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ATLAS/ATL04.004 Date Accessed: 2026-09-09

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