A243-02
Observations of Atmospheric Aerosol Absorption and Their Use to Constrain Models at Various Scales
Wednesday, 16 December 2020: 16:04
Virtual
Jens Redemann1, Rob Wood2, Paquita Zuidema3, Sarah J Doherty4, Amie Nicole Dobracki5,6, Feng Xu7, Lan Gao8, Ian Chang7, Connor Flynn9, Logan Mitchell10, Samuel E LeBlanc11, Meloe S Kacenelenbogen12, Michal Segal-Rosenhaimer12, Kristina Pistone12, Stephen P Broccardo13, Yohei Shinozuka14, Steven G Howell15, Sebastian Schmidt16, Sabrina Cochrane17, Arthur J Sedlacek III18, Snorre Stamnes19, Sharon P Burton19, Reed Espinosa20, Arlindo daSilva20, Richard Anthony Ferrare19, Patricia Castellanos20, Cairns Brian21, Oleg Dubovik22, David M Winker19, Nick Schutgens23,24, Gregory R Carmichael25, Pablo E Saide26 and Marc Mallet27, (1)University of Oklahoma Norman Campus, School of Meteorology, Norman, OK, United States, (2)University of Washington Seattle Campus, Seattle, WA, United States, (3)University of Miami, Miami, FL, United States, (4)Univ Wash--CICOES, Seattle, WA, United States, (5)University of Hawaii at Manoa, Honolulu, HI, United States, (6)University of Miami, Department of Atmospheric Science, Miami, FL, United States, (7)University of Oklahoma, School of Meteorology, Norman, OK, United States, (8)University of Oklahoma Norman Campus, Meteorology, Norman, OK, United States, (9)University of Oklahoma Norman Campus, Norman, United States, (10)University of Oklahoma, School of Meteorology, Norman, United States, (11)University of Colorado at Boulder, Boulder, CO, United States, (12)NASA Ames Research Center, Moffett Field, CA, United States, (13)Universities Space Research Association San Jose, Moffett Field, CA, United States, (14)Bay Area Environmental Research Institute Sonoma, Sonoma, CA, United States, (15)University of Hawaii at Manoa, Oceanography, Honolulu, HI, United States, (16)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (17)University of Colorado at Boulder, ATOC, Boulder, CO, United States, (18)Brookhaven National Lab, Upton, NY, United States, (19)NASA Langley Research Center, Hampton, VA, United States, (20)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (21)NASA Goddard Institute for Space Studies, New York, NY, United States, (22)Laboratoire d'Optique Atmosphérique, CNRS/University of Lille, Lille, France, (23)Vrije Universiteit Amsterdam, Amsterdam, Netherlands, (24)University of Oxford, Oxford, United Kingdom, (25)Univ Iowa, Iowa City, IA, United States, (26)University of California Los Angeles, Institute of the Environment and Sustainability (IoES), Los Angeles, CA, United States, (27)CNRM / Meteo-France, Toulouse, France
Abstract:
Accurate observations of atmospheric aerosol absorption at ambient conditions are crucial prerequisites to the validation of atmospheric models, and to the combined use of models and observations for studying the evolution of aerosol absorption during transport and its resulting impacts on climate. This talk will present recent suborbital observations of absorbing aerosols from a selection of field deployments. We will provide examples of airborne observational efforts using recently developed and improved radiation instrumentation, e.g., the Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR) and the Solar Spectral Flux Radiometer (SSFR), and describe how results from the radiation instruments compare to more conventional in situ observations of aerosol absorption. Based on the combined data sets, we will show comparisons of observed aerosol absorption to climate and chemical transport models, with an emphasis on the South-East Atlantic region. Based on a few case studies, we will then showcase how newly collected remote sensing data sets are used to develop novel retrieval algorithms for aerosol absorption, using polarimeter and lidar measurements as retrieval inputs. We will conclude by describing the significance of aerosol absorption for the scientific objectives of the NASA ACCP (Aerosols, Clouds, Convection and Precipitation) project, recommended by the 2017 Decadal Survey. In this context, we will present new joint lidar-polarimeter retrieval simulation results that have been produced in support of the ACCP designated observable study to help investigate potential satellite architectures and instrument combinations for the NASA ACCP mission.
