A176-0006
Constrained retrievals of aerosol optical properties using combined lidar and imager measurements during the FIREX-AQ campaign

Tuesday, 15 December 2020
Poster
Natalie Midzak1, Olga V. Kalashnikova2, John E Yorks3, Michael J Garay2, Jianglong Zhang4, Robert C Levy5 and Yingxi Rona Shi6, (1)University of North Dakota, Grand Forks, ND, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (3)SSAI/NASA GSFC, Greenbelt, MD, United States, (4)U of N Dakota-Atmos Sciences, Grand Forks, ND, United States, (5)NASA/Goddard Space Flight Ctr, Greenbelt, MD, United States, (6)NASA Goddard Space Flight Center, Greenbelt, MD, United States
Abstract:
During the Fire Influence on Regional to Global Environments Experiments – Air Quality (FIREX-AQ) campaign, multiple biomass burning events were sampled by coincided observations from the Cloud Physics Lidar (CPL) and the enhanced MODIS Airborne Simulator (eMAS) onboard the NASA ER-2 aircraft. CPL measures attenuated backscatter at multiple wavelengths and depolarization ratio, which are used to classify retrievals of clouds and aerosols with high temporal and spatial resolution. Additionally, the eMAS airborne infrared spectrometer acquires data at a high spatial resolution in 38 spectral bands.

Using coincident lidar and spectrometer data from the FIREX-AQ campaign, a revised lidar aerosol retrieval scheme is attempted in this study. Upon quality control procedures, CPL and eMAS data are collocated and analyzed with particular attention given to two case study fires. Passive based aerosol properties retrieved from eMAS are further used to constrain lidar ratio and aerosol extinction profile retrievals from CPL. Potential benefits and limitations of the proposed approach are also explored.

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