Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds

Turner, David, D. ; Ferrare, Richard, A.

关键词: ACCURACY;    AEROSOLS;    BOUNDARY LAYERS;    CLOUDS;    DISTRIBUTION;    ENTRAINMENT;    HUMIDITY;    OPTICAL RADAR;    SENSITIVITY;    TURBULENCE;    WATER VAPOR Raman lidar;    MPL;    aerosol extinction;    aerosol scattering;    relative humidity;    water vapor;   

DOI  :  10.2172/1018335
RP-ID  :  DOE/ER/64538
PID  :  OSTI ID: 1018335
Others  :  Other: PRJ14YW
Others  :  TRN: US201215%%622

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

The 'Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds' project focused extensively on the analysis and utilization of water vapor and aerosol profiles derived from the ARM Raman lidar at the Southern Great Plains ARM site. A wide range of different tasks were performed during this project, all of which improved quality of the data products derived from the lidar or advanced the understanding of atmospheric processes over the site. These activities included: upgrading the Raman lidar to improve its sensitivity; participating in field experiments to validate the lidar aerosol and water vapor retrievals; using the lidar aerosol profiles to evaluate the accuracy of the vertical distribution of aerosols in global aerosol model simulations; examining the correlation between relative humidity and aerosol extinction, and how these change, due to horizontal distance away from cumulus clouds; inferring boundary layer turbulence structure in convective boundary layers from the high-time-resolution lidar water vapor measurements; retrieving cumulus entrainment rates in boundary layer cumulus clouds; and participating in a field experiment that provided data to help validate both the entrainment rate retrievals and the turbulent profiles derived from lidar observations.