Articles | Volume 15, issue 6
Atmos. Meas. Tech., 15, 1931–1956, 2022
https://doi.org/10.5194/amt-15-1931-2022
Atmos. Meas. Tech., 15, 1931–1956, 2022
https://doi.org/10.5194/amt-15-1931-2022
Research article
30 Mar 2022
Research article | 30 Mar 2022

Assessing the benefits of Imaging Infrared Radiometer observations for the CALIOP version 4 cloud and aerosol discrimination algorithm

Thibault Vaillant de Guélis et al.

Data sets

CALIPSO Lidar Level 2 Merge Layer Data, V4-20 NASA https://doi.org/10.5067/CALIOP/CALIPSO/LID_L2_05KMMLAY-STANDARD-V4-20

CALIPSO Infrared Imaging Radiometer (IIR) Level 2 Track, V4-20 NASA https://doi.org/10.5067/CALIOP/CALIPSO/CAL_IIR_L2_Track-Standard-V4-20

Download
Short summary
A new IIR-based cloud and aerosol discrimination (CAD) algorithm is developed using the IIR brightness temperature differences for cloud and aerosol features confidently identified by the CALIOP version 4 CAD algorithm. IIR classifications agree with the majority of V4 cloud identifications, reduce the ambiguity in a notable fraction of not confident V4 cloud classifications, and correct a few V4 misclassifications of cloud layers identified as dense dust or elevated smoke layers by CALIOP.