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大气科学  2005 

近五年来东亚春季黑炭气溶胶分布输送和辐射效应的模拟研究

DOI: 10.3878/j.issn.1006-9895.2005.01.13

Keywords: 黑炭气溶胶生物质燃烧东亚地区输送辐射强迫

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Abstract:

通过对2000~2004年2~4月东亚地区人为和生物质燃烧排放黑炭气溶胶的模拟,分析5年平均的结果,发现:春季,东亚地区印度、中南半岛、中国东部存在三个显著的黑炭气溶胶大值区,最大柱含量均在1mg·m-2以上,印度半岛的排放能影响中国南方25°N~30°N之间区域,而中南半岛的排放能影响中国25°N以南的大陆地区.850~700hPa是中南半岛排放输送进入中国的主要层次.中国华北和东北的排放向东输送影响朝鲜半岛、日本等地,但中国春季的输出量小于境外对中国的输入量;境外注入对中国西部和江南地区影响显著,对中国北方地区影响较小.黑炭气溶胶引起晴空和云天大气顶净向下辐射通量增大,地表净向下辐射通量减小,辐射通量变化最显著地区在中国四川、湖北一带,大气顶辐射通量增大最大为4W·m-2,地表通量减小最大约-5.5W·m-2.

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