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Trends of the sunshine duration and diffuse radiation percentage on sunny days in urban agglomerations of China during 1960-2005
Fu, Chuanbo1; Dan, Li1; Chen, Youlong1; Tang, Jiaxiang1; hnfuchuanbo@163.com; danli@tea.ac.cn
2015
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
Volume34Pages:206-211
AbstractThe long-term observational data of sunshine duration (SD) and diffuse radiation percentage (defined as diffuse solar radiation/total solar radiation, DRP) on sunny days during 1960-2005 were analyzed in 7 urban agglomerations and the whole of China. The results show that the sunny sunshine duration (SSD) has decreased significantly except at a few stations over northwestern China in the past 46 years. An obvious decrease of the SSD is found in eastern China, with the trend coefficients lower than -0.8. Accompanied by the SSD decline, the sunny diffuse radiation percentage (SDRP) in most stations shows obvious increasing trends during the 46 years. The averaged SDRP over China has increased 2.33% per decade, while the averaged SSD shows a decrease of -0.13 hr/day per decade. The correlation coefficient between SDRP and SSD is -0.88. SSD decreased over urban agglomerations (small to large city clusters) in the past 46 years, especially in large cities and medium cities, due to the strong anthropogenic activities and air pollution represented by aerosol option depth (AOD) and tropospheric column NO2 (TroNO(2)). On the regional scale, SSD has an opposite trend from SDRP during 1960 to 2005, and the variation trends of regional mean values of SSD and SDRP in southeastern China are more pronounced than those in northwestern China. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
DepartmentLMB
KeywordSunny Sunshine Duration Diffuse Radiation Percentage Annual Change
Subject AreaEnvironmental Sciences & Ecology
URL查看原文
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/14792
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorhnfuchuanbo@163.com; danli@tea.ac.cn
Affiliation1.[Fu, Chuanbo
2.Chen, Youlong
3.Tang, Jiaxiang] Hainan Meteorol Observ, Haikou 570203, Peoples R China
4.[Fu, Chuanbo
5.Dan, Li] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate East A, Beijing 100029, Peoples R China
6.[Fu, Chuanbo
7.Chen, Youlong
8.Tang, Jiaxiang] Key Lab South China Sea Meteorol Disaster Prevent, Haikou 570203, Peoples R China
Recommended Citation
GB/T 7714
Fu, Chuanbo,Dan, Li,Chen, Youlong,et al. Trends of the sunshine duration and diffuse radiation percentage on sunny days in urban agglomerations of China during 1960-2005[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2015,34:206-211.
APA Fu, Chuanbo,Dan, Li,Chen, Youlong,Tang, Jiaxiang,hnfuchuanbo@163.com,&danli@tea.ac.cn.(2015).Trends of the sunshine duration and diffuse radiation percentage on sunny days in urban agglomerations of China during 1960-2005.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,34,206-211.
MLA Fu, Chuanbo,et al."Trends of the sunshine duration and diffuse radiation percentage on sunny days in urban agglomerations of China during 1960-2005".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 34(2015):206-211.
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