干旱区生态环境知识资源中心(Arid): Comparison of GCM-simulated isotopic compositions of precipitation in arid central Asia

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	Comparison of GCM-simulated isotopic compositions of precipitation in arid central Asia
	Wang Shengjie; Zhang Mingjun; Chen Fenli; Che Yanjun; Du Mingxia; Liu Yangmin
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2015
卷号	25 期号:7 页码:771-783
英文摘要	The isotope-equipped GCMs (general circulation models) are useful tools to investigate the isoscape in precipitation and water vapor, especially for the regions without enough in-situ observations. To study the spatial distribution and seasonal variation of precipitation isotopic composition in arid central Asia, several isotope-equipped GCMs are applied, and the long-term observations in two stations are used to verify the GCM-simulated results. Generally, seasonality of isotopic composition can be well simulated in each GCM, and the values of delta~(18)O in precipitation are larger in summer months (from April to October) and lower in winter months (from November to March). Higher latitude usually shows lower values of delta~(18)O in precipitation, and lower latitude has higher values. The values of delta~(18)O are relatively low in the eastern section, and higher in the western section. Among these simulations, ECHAM is good at describing the isotopic composition in the study region, which can be seen from the mean absolute error (MAE) and root-mean-square error (RMSE). The ECHAM-derived values of delta~(18)O in precipitation positively correlate with the observed series, and the correlation coefficient based on ECHAM is the largest among these GCMs.
英文关键词	GCM isotopic composition precipitation central Asia
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5410287
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335484
作者单位	Wang Shengjie, College of Geography and Environmental Science, Northwest Normal University, Lanzhou, Gansu 730070, China.; Zhang Mingjun, College of Geography and Environmental Science, Northwest Normal University, Lanzhou, Gansu 730070, China.; Chen Fenli, College of Geography and Environmental Science, Northwest Normal University, Lanzhou, Gansu 730070, China.; Che Yanjun, College of Geography and Environmental Science, Northwest Normal University, Lanzhou, Gansu 730070, China.; Du Mingxia, College of Geography and Environmental Science, Northwest Normal University, Lanzhou, Gansu 730070, China.; Liu Yangmin, College of Geography and Environmental Science, Northwest Normal University, Lanzhou, Gansu 730070, China.
推荐引用方式 GB/T 7714	Wang Shengjie,Zhang Mingjun,Chen Fenli,et al. Comparison of GCM-simulated isotopic compositions of precipitation in arid central Asia[J],2015,25(7):771-783.
APA	Wang Shengjie,Zhang Mingjun,Chen Fenli,Che Yanjun,Du Mingxia,&Liu Yangmin.(2015).Comparison of GCM-simulated isotopic compositions of precipitation in arid central Asia.Journal of Geographical Sciences,25(7),771-783.
MLA	Wang Shengjie,et al."Comparison of GCM-simulated isotopic compositions of precipitation in arid central Asia".Journal of Geographical Sciences 25.7(2015):771-783.