We offer Level 1B and Level 2 products with associated granule summaries. If you'd like to use our data, please read our Data Policy.
Reconstructed, unprocessed instrument data at raw resolutions (i.e. the downlinked raw photon counts from the CATS instrument). Any and all communications artifacts (e.g. synchronization of packets, communications headers, duplicate or missing data) are removed in the L0 process.
L0 data that is time-referenced, geo-located, corrected for detector nonlinearity and instrument artifacts, normalized to laser energy, and annotated with ancillary information. The CATS L1A data (relative normalized backscatter) is an internal product only and is not disitributed.
L1A data that have been calibrated, annotated with ancillary meteorological data, and processed to sesor units. The CATS L1B data (attenuated total backscatter and depolarization ratio) is archived as Level 1 data.
L1B files that are run through the new operational CATS L2 algorithm, which will include new capabilities. Geophysical parameters, such as the vertical feature mask, profiles of cloud and aerosol properties (i.e. extinction, particle backscatter), and layer-integrated parameters (i.e. lidar ratio, optical depth). The Operational L2 data files will be available on this site.
CATS Products and Data Ordering
CATS Data Policy
Access to CATS data is not restricted. However, we do ask that data users respect the experiment PIs and others with rights to the data. An offer of co-authorship on any publications, presentation, etc., should be made to the PI and his/her team if images and/or data are used (even if they are freely accessed).