Aerosol trends over China, 1980-2000
Aerosol trends over China, 1980-2000
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DOI：
10.1016/j.atmosres.2007.10.016
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发表时间：
2008-05-01
影响因子：
5.5
通讯作者：
Shi, Guangyu
中科院分区：
文献类型：
--
作者：
Streets, David G.;Yu, Carolyne;Shi, Guangyu
介绍了1980-2000年东亚地区二氧化硫、黑碳和有机碳的年度排放趋势。由于各种经济、环境和社会力量，二氧化硫的排放量在1996年左右达到峰值，碳质气溶胶的排放量在1994-1995年左右达到峰值。利用GOCART全球化学输送模式的区域结果，这些排放被转换为它们对东亚上空气溶胶光学厚度(AOD)的贡献。我们计算出，中国上空的平均光学厚度从1980年的0.25上升到1995年-1996年的峰值约0.305，然后在2000年下降到约0.29.这一趋势与中国52个气象站的地面短波辐照度测量以及其他与辐射有关的趋势是一致的。这也可能与中国从20世纪90年代中期开始的平均地表温度上升一致。(C)2007 Elsevier B.V.保留所有权利。
Annual emission trends of sulfur dioxide, black carbon, and organic carbon are presented for East Asia for the period 1980-2000. Emissions of sulfur dioxide peaked in about 1996, and emissions of the carbonaceous aerosols peaked in about 1994-1995, due to a variety of economic, environmental, and social forces. These emissions are converted to their contributions to aerosol optical depth (AOD) over East Asia, using regional results from the GOCART global chemical transport model. We calculate that, on average, AOD over China rose from a value of 0.25 in 1980, peaked at a value of about 0.305 in 1995-1996, and then decreased to about 0.29 in 2000. This trend is consistent with surface shortwave irradiance measurements at 52 weather stations in China, as well as with other radiation-related trends. It may also be consistent with a rise in mean surface temperatures in China starting about the middle of the 1990s. (c) 2007 Elsevier B.V. All rights reserved.