期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII-B8
页码：473-478
出版社：Copernicus Publications
摘要：Tropical biomass burning and associated emissions of aerosols into the atmosphere play a vital role in atmospheric perturbation and climate change. Aerosols containing black carbon are emitted primarily in the tropical and subtropical regions of the globe accounting to the release of almost 100 million tons of smoke into the atmosphere as a result of biomass burning. The present study aims at investigating the impact of forest fires on aerosol concentration over the northeast region of India, with the use of satellite data. The forests of northeast India are subjected to severe fire episodes during the January -May period every year mainly due to slash-and-burn agricultural practices. Daily active forest fire locations over the north-eastern region were derived using the nighttime satellite data from the Defense Meteorological Satellite Program – Operational Line Scan system (DMSP-OLS). These data were compared with variations in the Aerosol Index (AI) derived from the Total Ozone Mapping Spectrometer (TOMS) along with the Aerosol Optical Depth (AOD) derived from the Moderate Resolution Imaging Spectroradiometer (MODIS). The analysis covered the period January-May 2006. The satellite data analysis suggested a maximum number of forest fires between February and April with a significant peak in last week of March. The results clearly suggested a significant correlation between forest fire occurrences and variations in the aerosol concentrations over the study region
关键词：Atmosphere; Climate Change; Forest fires; biomass burning; Satellite data
