十大最美妙摄影:日食“珠子项链”(图)(3)
3、跟踪东亚地区大气污染
得益于人造卫星传感器的技术升级,目前科学家能够跟踪测量东亚地区森林火灾、工业废料和城市排放气体在大气层中形成的污染。据2008年一项统计评估研究显示,这些污染物质相当于2002-2005年间美国和加拿大排放污染物质的15%,目前这些大气层污染物由东亚向北美洲地区漂移。
图像显示的是,1997年印尼海域和印度洋上空的大气污染,图中白色部分代表由于森林火灾形成的喷雾,绿色、黄色和红色部分代表对流层中的臭氧烟雾不断地增长。
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