Satellite and ground-based study of optical properties of 1997 Indonesian Forest Fire aerosols
Optical properties of biomass burning aerosols in the event of Indonesian forest fires in 1997 were studied by groundbased sky radiometry and satellite remote sensing with AVHRR and TOMS radiometers. The AVHRR‐derived optical thickness distribution agreed with the distribution of TOMS‐derived UV‐abs...
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Published in | Geophysical research letters Vol. 26; no. 16; pp. 2421 - 2424 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Blackwell Publishing Ltd
15.08.1999
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Subjects | |
Online Access | Get full text |
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Summary: | Optical properties of biomass burning aerosols in the event of Indonesian forest fires in 1997 were studied by groundbased sky radiometry and satellite remote sensing with AVHRR and TOMS radiometers. The AVHRR‐derived optical thickness distribution agreed with the distribution of TOMS‐derived UV‐absorbing aerosol index and with the optical thickness measured by sky radiometry and sunphotometry. The single scattering albedo of aerosols was fairly constant as 0.9 in the September–October period. Relationship between Ångström turbidity factor and exponent supported the polydispersion consisted of aged small particles. This observation was consistent with the fact that the retrieved volume size distribution by sky radiometry has a distinct accumulation mode with a peak radius of 0.25 µm. Those optical properties of smoke aerosols seem to reflect the specific chemical structure of Indonesian forest fire aerosols, i.e., a mixture of carbonaceous and sulfate particles. |
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Bibliography: | ark:/67375/WNG-1VGMRSCM-1 ArticleID:1999GL900208 istex:D5B840BB802EA85EA904EA9E9C983C46693D84FB ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0094-8276 1944-8007 |
DOI: | 10.1029/1999GL900208 |