REMOTE-SENSING OF BIOMASS BURNING IN THE TROPICS

被引:223
作者
KAUFMAN, YJ
TUCKER, CJ
FUNG, I
机构
[1] NASA, GODDARD SPACE FLIGHT CTR, GREENBELT, MD 20771 USA
[2] NASA, GODDARD INST SPACE STUDIES, NEW YORK, NY 10025 USA
关键词
D O I
10.1029/JD095iD07p09927
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
The method is based on remote sensing of particulates. The visible (0.63μm) and near-infrared (0.84μm) bands are used to determine the mass of particulates in the emitted smoke and to estimate the relative contribution of flaming and smoldering fires to the resulting smoke. The detected mass of emitted particulates is converted into a mass of emitted trace gases. Analysis of the 1987 burning season shows that in Brazil (in a limited area between 6.5°-15.5°S and 55°-67°W) during the 3 months of the dry season (July 1 to September 30) there are up to 8000 fires a day (observed from space) each contributing 4500t of CO2, 750t of CO, and 26t of CH4 to the atmosphere. During the dry season of 1987, it is estimated that 240 000 fires were burning in this area resulting in the emission of 1×1013g of particulates, 7×1012g of CH4, 2×1014g of CO, and 1×1015g of CO2. -from Authors
引用
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页码:9927 / 9939
页数:13
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