Climatic Change Characteristics of Sunshine Hours and Cause Analysis in Lianyungang City

查看全文 作　　者：Honghua [1]Zhang;Guichen [1]Wang;Mengxi [2]Yang;Peng [1]Wang

机构地区：[1]Lianyungang Meteorological Bureau;[2]Ocean University of China

出　　处：《Meteorological and Environmental Research》索引2013年第4卷第12期,共6页

基　　金：Supported by Meteorological Youth Fund of Jiangsu Province,China(Q201104);the Project of Science and Technology Bureau in Lianyungang of Jiangsu Province,China(SH1206,SH1013);the Project of Science and Technology Department of Jiangsu Province,China(BE2011720) 摘　　要：[Objective]The research aimed to study climatic change characteristics of sunshine hours in Lianyungang and analyze its formation reason. [Method]Based on monthly sunshine hours,precipitation,cloudiness,haze days and vapor pressure from 7 stations of Lianyungang from 1961 to 2010,monthly,seasonal,annual and interdecadal change trends of the sunshine hours were analyzed by using MK test,linear trend analysis and Morlet wavelet. Meanwhile,the cause of change characteristics was analyzed. [Result] Monthly sunshine hours of Lianyungang showed bimodal distribution,and seasonal and annual sunshine hours had decreasing trend at different degrees. The interdecadal change of sunshine hours showed wave characteristics. The annual sunshine hours had multiple temporal-spatial scale features,and there was an obvious mutation in the late 1980s. Sunshine hours in Lianyungang was closely related to visibility,cloudiness,vapor pressure and haze,and they were important factors causing that sunshine hours significantly declined. [Conclusion]The research could provide reference basis for scientifically developing and using solar energy resource and reasonably adjusting industrial and agricultural structures. 关键词：气候变化特征日照时数连云港市原因 MORLET小波年代际变化太阳能资源线性趋势

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Climatic Change Characteristics of Sunshine Hours and Cause Analysis in Lianyungang City

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