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

在奄美大岛和江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、重金属等空气污染物浓度增加，土壤颗粒物浓度增加。根据后向轨迹分析，在这一时期，大量的污染物随黄沙从中国大陆输送到西太平洋。细颗粒物的单次散射散射系数在0.75 ~ 0.90之间，利用该单次散射系数，结合Terra卫星上的MODIS辐射数据，估算了东亚地区大气气溶胶光学厚度的分布。根据分析结果，2001年3月在中国南部的Suchowan地区出现了超过2.0的光学厚度，这是由Chontsu市排放的空气污染物造成的。2000年4月在韩国，大量的森林火灾气溶胶从Chunian输送到日本海。因此，研究使我们能够估计环境污染的卫星遥感。

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.