气象2016，Vol.42Issue(5)：607-613,7.DOI:10.7519/j.issn.1000-0526.2016.05.010
北京地区夏季降水与气温的对应关系
A Study on Relationship Between Summer Precipitation and Air Temperature in Beij ing Area
摘要
Abstract
Based on the observation data of daily precipitation and air temperature of 20 weather stations in Beijing Area from 1978 to 2012,the empirical relationship between precipitation and air temperature and the differences between urban and suburban areas in summer (June to August)were analyzed.The results showed that:(1 )Daily precipitation presented a first increasing then decreasing trend with air temperature rising.For moderate and heavy rainfalls,precipitation kept stable and varied weakly with air temperature increasing after air temperature reached a threshold.While the air temperature rose further to a certain threshold value,precipitation decreased rapidly with air temperature rising.Before it reached the maxi-mum value,the heavier the precipitation was,the closer the precipitation increase rate was to Clausius-Clapeyron (CC)variability.(2 )The critical values of precipitation frequency and intensity varying sepa-rately with air temperature variation were not the same.When air temperature was higher than the thresh-old,precipitation frequency and intensity also began to weak.The different magnitudes of precipitation va-rying with the air temperature had similar trends between the urban and suburban areas.However,precip-itation increase rate before precipitation reached the maximum value was bigger in urban area than in the suburb,which indicated that precipitation in urban areas was more sensitive to temperature than that in suburbs.关键词
降水/气温/Clausius-Clapeyron关系/北京Key words
precipitation/air temperature/Clausius-Clapeyron relationship/Beijing分类
天文与地球科学引用本文复制引用
郑祚芳..北京地区夏季降水与气温的对应关系[J].气象,2016,42(5):607-613,7.基金项目
国家自然科学基金项目（41575010和41175015）、中国科学院战略性先导专项（XDA05090202）共同资助 （）
