大气科学2017，Vol.41Issue(2)：251-262,12.DOI:10.3878/j.issn.1006-9895.1607.16146
冬春季东亚气溶胶流出通量年际变率的相关环流异常分析
Interannual Variation of East Asian Aerosols Outflow in the Winter-Spring and Associated Atmospheric Circulation
摘要
Abstract
The interannual variation (IAV) in aerosols mass outflow from East Asia to Pacific driven by meteorological fields in the winter-spring time and the associated atmosphere circulations are explored by the global three-dimensional Goddard Earth Observing System (GEOS) chemical transport model (GEOS-Chem) over 1986-2006.More (less) East Asian aerosols outflow to the downstream North Pacific region is concurrent with the enhanced (depressed) stationary wave center over Northeast Asia/western Pacific region (NAWP) at 500 hPa.More East Asian aerosols mass tends to be transported downstream through a path 5-10 degrees north of the climatological path in the years with negative geopotential height anomalies over NAWP.The anomalies of the geopotential height at 500 hPa over NAWP regions are accompanied by anomalies of westerly winds and baroclinicity in the lower troposphere,which induce the IAV of the flux and the path of the East Asian aerosols outflow.关键词
冬春季/东亚/气溶胶流出/年际变率/大气环流Key words
Winter-spring/East Asian/Aerosol outflow/Interannual variation/Atmospheric circulation分类
天文与地球科学引用本文复制引用
冯琎,廖宏..冬春季东亚气溶胶流出通量年际变率的相关环流异常分析[J].大气科学,2017,41(2):251-262,12.基金项目
国家重点基础研究发展计划(973计划)项目2014CB441200 National Basic Research Program of China (973 Program) (Grant 2014CB441200) （973计划）
