DocumentCode :
2092549
Title :
Radiative impact of biomass burning aerosols
Author :
Christopher, Sundar A.
Author_Institution :
Dept. of Atmos. Sci., Alabama Univ., Huntsville, AL, USA
Volume :
1
fYear :
2001
fDate :
2001
Firstpage :
345
Abstract :
Using collocated data from the Visible Infrared Scanner (VIRS) and the Clouds and the Earth´s Radiant Energy Budget Scanner (CERES) from the Tropical Rainfall Measuring Mission (TRMM) satellite, observational estimates of the instantaneous shortwave aerosol radiative forcing (SWARF) of smoke aerosols at the top-of-atmosphere (TOA) are calculated for biomass burning aerosols over land and ocean areas. The smoke aerosols are characterized as an internal mixture of viscous organic liquids surrounding a spherical black carbon core and aerosol optical thickness at the visible wavelength (T0.63) is calculated. We also use high temporal resolution GOES-8 imager data to retrieve aerosol optical thickness to compare against ground-based sunphotometer derived optical thickness values. Our results indicate that the SWARF changes from -24 to -99 Wm-2 as τ0.63 changes from 0.2 to 2.2 from VIRS and CERES. The GOES-8 retrieved aerosol optical thickness is also in excellent agreement with AERONET values. This is among the first studies to provide observational estimates of the direct radiative forcing of biomass burning aerosols
Keywords :
aerosols; atmospheric optics; atmospheric radiation; remote sensing; smoke; CERES; Clouds and the Earth´s Radiant Energy Budget Scanner; SWARF; TRMM satellite; Tropical Rainfall Measuring satellite; VIRS; Visible Infrared Scanner; aerosol optical thickness visible; biomass burning aerosols; internal mixture; optical thickness; radiative impact; shortwave aerosol radiative forcing; smoke aerosols; spherical black carbon core; top-of-atmosphere; viscous organic liquids; Aerosols; Area measurement; Biomass; Biomedical optical imaging; Clouds; Earth; Energy measurement; Oceans; Satellites; Sea measurements;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
Type :
conf
DOI :
10.1109/IGARSS.2001.976153
Filename :
976153
Link To Document :
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