Data Quality Statement for the
release of the CALIPSO IIR Level 2 Track and Swath - Products Version 4.20, April 27, 2020
Data Release Date:April 27, 2020 Version: 4.20 Data Date Range: June 13, 2006 to present
The V4.20 IIR Level 2 track and swath data products are the first major revision to the products
since Version 3 released in May 2011. They are named after the V4.20 CALIOP 5-km cloud and aerosol
layer data products, which are used in synergy with the IIR calibrated radiances reported in the V2.00
IIR Level 1 data product. The V4.20 IIR level 2 data products include a refined CALIOP-based scene
classification, an updated radiative transfer model analysis for clear air reference, improved optical
and microphysical properties of ice and water clouds, both over ocean and over land, in particular
for thin clouds and for multi-layered cloud systems.
The products released are:
Information about these new data products including data availability, user
documentation and quality statements, relevant links, and
tools for working with the data, etc. can be found at the following ASDC link: https://asdc.larc.nasa.gov.
An in-depth data quality summary and description can be found in the following CALIPSO links: