气候变化领域集成服务门户(CCPortal): From brightening to dimming in sunshine duration over the eastern and central Tibetan Plateau (1961-2005)

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DOI	10.1007/s00704-009-0231-9
	From brightening to dimming in sunshine duration over the eastern and central Tibetan Plateau (1961-2005)
	You, Qinglong; Kang, Shichang; Fluegel, Wolfgang-Albert; Sanchez-Lorenzo, Arturo; Yan, Yuping; Huang, Jie; Martin-Vide, Javier
发表日期	2010
ISSN	0177-798X
EISSN	1434-4483
卷号	101 期号:2019-03-04
英文摘要	The Tibetan Plateau (TP) with an average elevation of over 4,000 m asl is the highest and most extensive highland in the world. We used monthly mean sunshine duration from the Chinese Meteorological Administration to examine the spatial and temporal variability of sunshine duration at 71 stations with elevations above 2,000 m asl in the eastern and central TP during the 1961-2005 period. The temporal evolution of the mean annual sunshine duration series shows a significant increase from 1961 to 1982 at a rate of 49.8 h/decade, followed by a decrease from 1983 to 2005 at a rate of -65.1 h/decade, with an overall significant decrease at a rate of -20.6 h/decade during the whole 1961-2005 period, which is mainly due to the summer and spring seasons. This confirms the evidence that sunshine duration in the TP ranges from brightening to dimming in accordance with sunshine duration trends in the rest of China. The surface solar radiation downwards from ERA-40 reanalysis data in the same region confirms the brightening/dimming phenomenon shown by the sunshine duration before/after the 1980s. Otherwise, additional climatic variables such as low cloud amount, total cloud amount, precipitation, relative humidity and water vapor pressure, in most cases, exhibit significant negative correlation with sunshine duration in the TP on an annual and seasonal basis before and after 1982, respectively. The trends of these variables suggest that changes in some of them might be related to the brightening and dimming detected with the use of sunshine duration measurements over the TP. We also hypothesize that the impact of anthropogenic aerosols upon the climatic variables analyzed cannot be rejected, especially in the significant increase in low cloud cover since approximately 1980.
学科领域	Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111574
作者单位	Chinese Acad Sci, Lab Tibetan Environm Changes & Land Surface Proc, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	You, Qinglong,Kang, Shichang,Fluegel, Wolfgang-Albert,et al. From brightening to dimming in sunshine duration over the eastern and central Tibetan Plateau (1961-2005)[J]. 中国科学院西北生态环境资源研究院,2010,101(2019-03-04).
APA	You, Qinglong.,Kang, Shichang.,Fluegel, Wolfgang-Albert.,Sanchez-Lorenzo, Arturo.,Yan, Yuping.,...&Martin-Vide, Javier.(2010).From brightening to dimming in sunshine duration over the eastern and central Tibetan Plateau (1961-2005).THEORETICAL AND APPLIED CLIMATOLOGY,101(2019-03-04).
MLA	You, Qinglong,et al."From brightening to dimming in sunshine duration over the eastern and central Tibetan Plateau (1961-2005)".THEORETICAL AND APPLIED CLIMATOLOGY 101.2019-03-04(2010).