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Proceedings Paper

Assessing the radiative impact of aerosol smoke using MODTRAN5
Author(s): G. P. Anderson; C. B. Schaaf; K. Loukachine; R. S. Stone; E. Andrews; E. P. Shettle; E. G. Dutton; M. O. Roman; A. Stohl; A. Berk
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Paper Abstract

Aerosols in the atmosphere affect the Earth's radiation budget in complicated ways, depending on their physical and optical characteristics and how they interact with solar and terrestrial radiation or affect cloud nucleation. While the Arctic atmosphere is generally very clean, spring incursions of haze and dust from Eurasia are known to perturb the surface radiation balance. Recent analyses (based on "Radiative impact of boreal smoke in the Arctic: Observed and modeled", Stone, et al., to be referred to throughout this ms as Stone2008) also reveal that smoke plumes from boreal forest fires can have significant effects during summer. Once aloft, upper-level winds can transport this smoke long distances. In late June and July 2004 fires raged across eastern Alaska and the Yukon and the resulting smoke was advected across the Arctic, reaching as far as Europe. The long-range transport was tracked using a dispersion model combined with various in situ measurements along its path, all showing enhancements in aerosol opacity. The measurements made at Barrow, Alaska, documented just a portion of the transport and the radiative impact of smoke. The comprehensive measuring systems in place near Barrow (NOAA/GMD and DoE/ARM) presented a unique opportunity to characterize the smoke aerosol both physically and optically, and therefore permit quantification of the upwelling radiance (outgoing shortwave radiance - OSR, 0.28 to 4.0 μm) as observed by NASA satellites: Clouds and the Earth's Radiant Energy System (CERES) 5, coupled with data from Moderate Resolution Imaging Spectroradiometer (MODIS).

Paper Details

Date Published: 14 April 2008
PDF: 8 pages
Proc. SPIE 6966, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIV, 696617 (14 April 2008); doi: 10.1117/12.782364
Show Author Affiliations
G. P. Anderson, Air Force Research Lab. (United States)
National Oceanic and Atmospheric Administration (United States)
C. B. Schaaf, Boston Univ. (United States)
K. Loukachine, Science Systems and Applications, Inc. (United States)
R. S. Stone, National Oceanic and Atmospheric Administration (United States)
Univ. of Colorado, Boulder (United States)
E. Andrews, National Oceanic and Atmospheric Administration (United States)
Univ. of Colorado, Boulder (United States)
E. P. Shettle, Naval Research Lab. (United States)
E. G. Dutton, National Oceanic and Atmospheric Administration (United States)
M. O. Roman, Boston Univ. (United States)
A. Stohl, Norwegian Institute for Air Research (Norway)
A. Berk, Spectral Sciences, Inc (United States)


Published in SPIE Proceedings Vol. 6966:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIV
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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