Aerosol and Cloud Optical Properties from the ARM Raman Lidars: The Feature Detection and Extinction (RLPROF-FEX) Value-Added Product

Technical Report · Mon Aug 01 00:00:00 EDT 2022

DOI:https://doi.org/10.2172/1560857· OSTI ID:1560857

Chand, Duli ^[1]; Newsom, Rob ^[1]; Thorsen, Tyler ^[2]; Cromwell, Erol ^[1]; Sivaraman, Chitra ^[1]; Flynn, Connor ^[3]; Shilling, John ^[1]; Comstock, Jennifer ^[1]

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1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
2. NASA Langley Research Center, Hampton, VA (United States)
3. Univ. of Oklahoma, Norman, OK (United States)

Aerosols and their interactions and influence on clouds are among the main sources of uncertainties in radiative direct and indirect forcing (IPCC 2013). Continuous height-resolved measurements of cloud and aerosol optical properties are needed to reduce these uncertainties. Here we describe the Raman Lidar Profiles – Feature detection and Extinction (RLPROF-FEX) Value-Added Product (VAP) derived using Raman lidar data at multiple U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) user facility sites. RLPROF-FEX provides estimates of extinction, backscatter, and depolarization using the algorithm described by Thorsen et al. 2015 and Thorsen and Fu 2015. This document provides a description of the FEX algorithm, its input and output data, and related details about the Raman lidar (RL) system.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Atmospheric Radiation Measurement (ARM) Data Center
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER)
• OSTI ID: 1560857
• Report Number(s): DOE/SC-ARM-TR--224
• Country of Publication: United States
• Language: English

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