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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/amt-2020-124
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2020-124
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 13 May 2020

Submitted as: research article | 13 May 2020

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This preprint is currently under review for the journal AMT.

TROPOMI Aerosol Products: Evaluation and Observations of Synoptic Scale Carbonaceous Aerosol Plumes during 2018–2020

Omar Torres1, Hiren Jethva2, Changwoo Ahn3, Glen Jaross1, and Diego G. Loyola4 Omar Torres et al.
  • 1NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA
  • 2Universities Space Research Association USRA/GESTAR, Columbia, MD, USA
  • 3Science Systems and Applications Inc., Lanham, MD USA
  • 4German Aerospace Center (DLR), Remote Sensing Technology Institute, Oberpfaffenhofen, 82234 Weßling, Germany

Abstract. TROPOMI near UV radiances are used as input to an inversion algorithm that simultaneously retrieves aerosol optical depth (AOD) and single scattering albedo (SSA) as well as the improved qualitative UV Aerosol Index (UVAI) that accurately accounts for the scattering effects of water clouds. We first present the TROPOMI aerosol algorithm (TropOMAER), an adaptation of the currently operational OMI near UV (OMAERUV & OMACA) inversion schemes, that take advantage of TROPOMI’s unprecedented fine near UV spatial resolution and the availability of ancillary aerosol-related information to derive aerosol loading in cloud-free and above-cloud aerosols scenes. An evaluation analysis of TROPOMI retrieved AOD/SSA products using sun-photometer observations shows improved levels of agreement with respect to those obtained with the heritage coarser resolution sensor. We then use TropOMAER aerosol retrieval results to discuss the the US Northwest and British Columbia 2018 wildfire season, the 2019 biomass burning season in the Amazon Basin, and the unprecedented January 2020 fire season in Australia that injected huge amounts of carbonaceous aerosols in the stratosphere.

Omar Torres et al.

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Omar Torres et al.

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Short summary
TROPOMI measures the amount of small suspended particles (aerosols). We describe initial results of aerosol measurements using a NASA algorithm that retrieves the UV Aerosol Index, as well as Aerosol Optical Depth and Single Scattering Albedo. An evaluation of derived products using sun-photometer observations shows close agreement. We also use these results to discuss important biomass burning and wildfire events around the world that got the attention of scientists and news media alike.
TROPOMI measures the amount of small suspended particles (aerosols). We describe initial results...
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