Climatic Trend of Cloud Amount Related to the Aerosol Characteristics in Beijing During 1950-2005

作     者：王继志 杨元琴 张光智 于淑秋 

作者机构：Centre for Atmosphere Watch and ServicesChinese Academy of Meteorological Sciences State Key Laboratory of Severe WeatherChinese Academy of Meteorological Sciences 

出 版 物：《Acta meteorologica Sinica》 (Acta Meteorologica Sinica)

年 卷 期：2010年第24卷第6期

页      面：762-775页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 070601[理学-气象学] 0815[工学-水利工程] 0706[理学-大气科学] 0816[工学-测绘科学与技术] 0824[工学-船舶与海洋工程] 0825[工学-航空宇航科学与技术] 

基　　金：Supported by the Special Grant in Atmospheric Sciences of the China Meteorological Administration(GYHY200706036) the National"973"Program of China(2011CB403404) the International Cooperation Project on Monsoon Monitoring (200 9DFA21430) 

主　　题：cloud variation aerosol aerosol optical depth(AOD) urban development climate trend 

摘      要：This paper analyzes the correlation between variations of total and low cloud amounts and the varying features of aerosols related to urban development of Beijing by using the cubic spline fitting method based on the monthly meteorological data of temperature,humidity,precipitation,clouds,and aerosol optical depth （AOD） during *** statistics on the development of the city of Beijing in this period,including the total industrial output,population,residential housing development,highway construction,charcoal production,etc.,is *** the rapid urban development of Beijing over the past 55 years or so,the urban aerosol concentration and composition have *** results indicate that：1） there is a general trend of climate warming and drying in Beijing;2） the total cloud amount in all seasons declines drastically,but lower cloud amount climbs up slightly;3） the high correlations between cloud amount and the indices of Beijing urban development such as the housing area,charcoal production,and road construction show that the variation of cloud amount is closely related to the urban development;4） the changing trend of AOD coincides more closely with the variation of low cloud *** evident drop of total cloud amount is in agreement with the trend of climate warming and drying,while the slight growth of low cloud amount is likely caused by more haze and fog occurrences in the lower troposphere in association with the pollution responsible for the＂darkening＂of Beijing and the surrounding areas.