ANALYSIS OF ENVIRONMENTAL POLLUTION IN THE EAST ASIA BY SATELLITE REMOTE SENSING

在奄美大岛和福岛测量了大气气溶胶的体积散射系数、体积吸收系数、粒径分布和化学成分。春季，大气中烟尘、硫酸盐和重金属等空气污染物以及土壤颗粒的浓度增加。反轨迹分析表明，这些时期大量污染物随黄沙从中国大陆输送到西太平洋。细颗粒的单次散射反照率在0.75 ~ 0.90之间。利用上述单次散射反照率，通过对Terra人造卫星MODIS传感器辐射数据的分析，估计了东亚地区气溶胶光学深度的分布，该分布反映了大气中气溶胶的数量。分析发现，2001年3月，苏皖地区出现了由大气污染物引起的光深大于2.0的现象。2000年4月，在韩国，大量的森林火灾气溶胶从春安市输送到日本海。从而使我们能够利用卫星遥感对环境污染进行估算。

The volume scattering coefficient, volume absorption coefficient, size distribution and chemical components of atmospheric aerosols were measured at Amami-Oshima and Fukue islands. In spring, atmospheric concentrations of air pollutants such as soot, sulfate and heavy metals increased as well as soil particles. According to back trajectory analysis, the large amounts of pollutants were transported with yellow sand from the Continental China to the western Pacific Ocean in the periods. The single scattering albedo ranged from 0.75 to 0.90 for fine particles.Using above single scattering albedo, distribution of the aerosol optical depth, which shows the amount of aerosols in the atmosphere, was estimated in the East Asia with analysis of radiance data by MODIS sensor in artificial satellite Terra. Due to the analysis, in March 2001 in Suchowan area in sourth China there appeared more than 2.0 in optical depth which deried from air pollutants emitted at Chontsu city. And in April 2000 in Korea, large amounts of forest fire aerosols were transported from Chunian to the Sea of Japan. Thus the research enabled us to estimate the environmental pollution by satellite remote sensing.