Release Announcement of New CALIPSO Lidar Level-1 Standard Version 04-51 Data Product

Sept. 9, 2022, 3:44 p.m.

Project: CALIPSO

The CALIPSO mission team, in collaboration with the Atmospheric Science Data Center (ASDC) at NASA Langley Research Center, announces the release of a new CALIOP Level 1 Product:


The product is available beginning with data from June 13, 2006 (following CALIOP first light), and as of this announcement, through December 31, 2010. Remaining data will be available as it is produced. The new data product will replace the currently available V4.10 and V4.11 data versions. Users are strongly encouraged to use this newer version of the CALIOP Level 1 product as it contains a number of corrections to the 1064 nm baseline shape (instrument characterization), polarization gain ratio (used to derive backscatter and depolarization), and the 532 nm and 1064 nm calibrations to mitigate low energies.
Information about this new data product including data availability, user documentation and quality statements, and relevant links can be found at the following ASDC link:

An in-depth data quality summary and description can be found in the following CALIPSO links:

Data Access Methods:

Earthdata Search

ASDC Direct Data Download


For questions regarding data usage, please ask us on the Earthdata Forum

Related URLS: