Thermal infrared observations of a western United States biomass burning aerosol plume

Abstract µ m (IR window), as well as in water-vapor-sensitive wavelengths at 7.3, 6.8, and 6.3 µ m (e.g., lower, middle, and upper troposphere). We systematically evaluated multiple hypotheses as to causal factors of these IR signatures of biomass burning smoke using a combination of data from the Aqua MODerate resolution Imaging Spectroradiometer (MODIS), Aqua Cloud and the Earth Radiant Energy System (CERES), Geostationary Operational Environmental Satellite 16/17 (GOES-16/17) Advanced Baseline Imager, and Suomi-NPP Visible Infrared Imaging Radiometer Suite (VIIRS) and Cross-track Infrared Sounder (CrIS). The largely clear transmission of light through wildfire smoke in the near infrared indicates that coarse or giant ash particles are unlikely to be the dominant cause. Rather, clear signals in water vapor and TIR channels suggest that both co-transported water vapor injected to the middle to upper troposphere and surface cooling by the reduction of surface radiation by the plume are more significant, with the surface cooling effect of smoke aloft being the most dominant. Giving consideration of the smoke impacts on TIR and longwave, CERES indicates that large wildfire aerosol plumes are more radiatively neutral. Further, this smoke-induced TIR signal may be used to map very optically thick smoke plumes, where traditional aerosol retrieval methods have difficulties.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Thermal infrared observations of a western United States biomass burning aerosol plume ; volume:24 ; number:2 ; year:2024 ; pages:1231-1248 ; extent:18
Atmospheric chemistry and physics ; 24, Heft 2 (2024), 1231-1248 (gesamt 18)

Creator
Sorenson, Blake T.
Reid, Jeffrey S.
Zhang, Jianglong
Holz, Robert E.
Smith Sr., William L.
Gumber, Amanda

DOI
10.5194/acp-24-1231-2024
URN
urn:nbn:de:101:1-2024020103200937175742
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:37 AM CEST

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Associated

  • Sorenson, Blake T.
  • Reid, Jeffrey S.
  • Zhang, Jianglong
  • Holz, Robert E.
  • Smith Sr., William L.
  • Gumber, Amanda

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