Image:China.A2002289.0515.250m.jpg
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Pollution over Eastern China 華北／華東的空氣污染
Credit: Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
This true-color image over eastern China was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS), flying aboard NASA.s Aqua satellite, on Oct. 16, 2002. The scene reveals dozens of fires burning on the surface (red dots) and a thick pall of smoke and haze (greyish pixels) filling the skies overhead. Notice in the high-resolution version of this image how the smog fills the valleys and courses around the contours of the terrain in China’s hilly and mountainous regions. The terrain higher in elevation is less obscured by the smog than the lower lying plains and valleys in the surrounding countryside.
This scene spans roughly from Beijing (near top center) to the Yangtze River, the mouth of which can be seen toward the bottom right. Toward the upper right corner, the Bo Hai Bay is rather obscured by the plume of pollution blowing eastward toward Korea and the Pacific Ocean. Toward the bottom right, the Yangtze River is depositing its brownish, sediment-laden waters into the Yellow Sea.
New climate studies have found that aerosol pollution containing large amounts of black carbon (soot) particles are causing changes in precipitation and temperatures over China and may be at least partially responsible for the tendency toward increased floods and droughts in those regions over the last several decades. (Click to read the NASA press release.)
照片來源：美國國家航空暨太空總署 Jacques Descloitres
這幅圖像是由美國航空航天署的衛星在2002年10月16日拍攝的．圖像揭示了分散各地的幾十個著火處（小紅圈表示）以及濃重的煙塵與霧霾．山區等較高地勢相比低處的平原和山谷，不是那麼模糊．這層霧霾從北京（中上部）一直分散到長江（右下角）．右上方的渤海灣籠罩著一層污染瘴氣，並吹向朝鮮半島及太平洋．圖像右下方，長江將其棕色富含沉澱物的江水投入黃海．氣候學研究發現，氣溶膠污染中含有大量炭黑顆粒，並導致中國降水與氣溫的變化，同時也是該地區近幾十年洪水與乾旱趨向增多的因素之一．
參見：中國的空氣污染
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