气象与环境学报2011，Vol.27Issue(6)：66-71,6.
中国北方地区冬季雨雪年度变化与大气气溶胶分布特征研究
Characteristics of annual variations of winter rain/snow and atmospheric aerosol distributions in the north of China
摘要
Abstract
With the rapid development of atmospheric observation technology in recent years, it provides some new observational facts for the analysis of the interannual variations of the heavy snow in winter and increases some new understanding. It is considered that the effect of atmospheric circulation on annual variations of winter snowfall is important, while it is just one of most aspects. New observational facts indicate that the inter-annual variations and differences of winter snow may be related to atmospheric aerosol. According to precipitation data from 279 weather stations from 1980 to 2008 and atmospheric aerosol optical depth （AOD） data from 1980 to 2005 in the north of China, the relationships between amount of winter rain/snow and AOD were analyzed. The results indicate that the typical years with more winter rain/snow are 1980,1984,1989,1993,1998,2003 and 2006 in the north of China,while those with less winter rain/snow are 1982-1983,1985-1988,1997,2001 and 2005. The correlation analysis between the total winter snowfall and synchronous AOD in the north of China shows that the annual variation of winter rain/snow is in a positive correlation with AOD_550m, and the correlation coefficient is significant at 0. 001 levels. The differences of AOD between years having more and less rain/snow are significant. Atmospheric AOD is clearly larger in the years having more rain/snow, and the average of positive anomaly of AOD reaches 1 × 10-3-5 × 10-3 in the north of North China and the south of Northeast China. However,the difference relative to this value is significant in the years having less rain/snow. The atmospheric AOD shows a significantly negative anomaly and the average is -5 x 10^-3关键词
多／少雨雪年度变化/大气气溶胶/气溶胶光学厚度/中国北方地区Key words
Annual variations of more or less rain/snow/Atmospheric aerosol/Aerosol optical depth (AOD)/Thenorth regions of China分类
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王继志,孥多,杨元琴,王亚强..中国北方地区冬季雨雪年度变化与大气气溶胶分布特征研究[J].气象与环境学报,2011,27(6):66-71,6.基金项目
国家重点基础研究发展计划（2011CB403404）和中国气象科学研究院基本科研业务项目（2009Y002,2009Z001）共同资助. （）
