QQ客服 官方微博 反馈留言

	Spatio-temporal changes in precipitation, temperature and their possibly changing relationship: a case study in the Wei River Basin, China
	Huang S. Z.; Huang, Q.; Zhang, H. B.; Chen, Y. T.; Leng, G. Y.
	2016
关键词	precipitation and temperature inflection point copula Bayesian copula selection method modified Mann-Kendall test method Wei River Basin climate-change extremes patterns copulas deficit waters trends cycle
英文摘要	With the purpose of further understanding the spatio-temporal changes in precipitation, temperature and their possibly changing relationship in the Wei River Basin (WRB), a typical arid and semi-arid region in China, the modified Mann-Kendall (MMK) test method was used to capture their trends at monthly and annual time scales, and the K-means cluster analysis method was applied to divide the whole basin into three homogeneous sub-regions. Furthermore, a copulas-based method was introduced in this study to identify possible inflection points of the relationship between precipitation and temperature in the WRB. Results indicate that: (1) spatially, both annual average precipitation and temperature decreased from southeast to northwest; temporally, for most months, a decreasing trend was found for precipitation while the air temperature in most months has a significantly increasing trend at 99% confidence level at monthly and annual time scales in the WRB; (2) climate warming has less effect on the precipitation structure than that on the precipitation magnitude in the WRB; and (3) overall, the relationship between precipitation and temperature in the whole WRB has no significant inflection point, implying a relatively stable relationship between precipitation and temperature changes. This study provides a new idea and quantitative measure for the identification of inflection points of the relationship between precipitation and temperature.
出处	International Journal of Climatology
卷	36
期	3
页	1160-1169
语种	英语
ISSN号	0899-8418
DOI标识	10.1002/joc.4409
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/42997]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Huang S. Z.,Huang, Q.,Zhang, H. B.,et al. Spatio-temporal changes in precipitation, temperature and their possibly changing relationship: a case study in the Wei River Basin, China. 2016.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。