气候变化领域集成服务门户(CCPortal): Spatiotemporal variations of the twentieth century Tibetan Plateau precipitation based on the monthly 2.5 degrees reconstructed data

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DOI	10.1007/s00704-017-2357-5
	Spatiotemporal variations of the twentieth century Tibetan Plateau precipitation based on the monthly 2.5 degrees reconstructed data
	Shen, Samuel S. P.; Clarke, Gregori; Shen, Bo-Wen; Yao, Tandong
发表日期	2019
ISSN	0177-798X
EISSN	1434-4483
卷号	135 期号:2019-01-02
英文摘要	This paper studies the spatiotemporal variations of precipitation over the Tibetan Plateau (TP) region with latitude and longitude ranges of (25 degrees N, 45 degrees N) and (65 degrees E, 105 degrees E) of the twentieth century from January 1901-December 2000. A long-term (January 1901-December 2009) TP monthly precipitation dataset with 2.5 degrees latitude-longitude resolution is generated in this paper using spectral optimal gridding (SOG) method. The method uses the Global Precipitation Climatology Center (GPCC) ground station data to anchor the basis of empirical orthogonal functions (EOFs) computed from the Global Precipitation Climatology Project (GPCP) data. Our gridding takes teleconnection into account and uses data from stations both within and outside of the TP region. While the annual total precipitation increased at an approximate rate of 2.6 mm per decade in the period of 1971-2000 exists, no significant increase of TP precipitation from 1901 to 2000 was found. Our rate is less than those of previous publications based only on the TP stations because our data consider the entire TP region, including desert and high-altitude areas. An analysis of extremes and spatiotemporal patterns of our data shows that our reconstructed data can properly quantify the reported disasters of flooding and droughts in India, Bangladesh, and China for the following events: flooding in 1988 and 1998 and drought in 1972. Our time-frequency analysis using the empirical mode decomposition method shows that our nonlinear trend agrees well with the linear trend in the period from 1971 to 2000. The spatiotemporal variation characteristics documented in this paper can help understand atmospheric circulations on TP precipitation and validate the TP precipitation in climate models.
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/112067
作者单位	San Diego State Univ, Dept Math & Stat, San Diego, CA 92182 USA
推荐引用方式 GB/T 7714	Shen, Samuel S. P.,Clarke, Gregori,Shen, Bo-Wen,et al. Spatiotemporal variations of the twentieth century Tibetan Plateau precipitation based on the monthly 2.5 degrees reconstructed data[J]. 中国科学院西北生态环境资源研究院,2019,135(2019-01-02).
APA	Shen, Samuel S. P.,Clarke, Gregori,Shen, Bo-Wen,&Yao, Tandong.(2019).Spatiotemporal variations of the twentieth century Tibetan Plateau precipitation based on the monthly 2.5 degrees reconstructed data.THEORETICAL AND APPLIED CLIMATOLOGY,135(2019-01-02).
MLA	Shen, Samuel S. P.,et al."Spatiotemporal variations of the twentieth century Tibetan Plateau precipitation based on the monthly 2.5 degrees reconstructed data".THEORETICAL AND APPLIED CLIMATOLOGY 135.2019-01-02(2019).