Spatio-temporal changes in precipitation, temperature and their possibly changing relationship: a case study in the Wei River Basin, China
文献类型：SCI/SSCI论文
| 作者 | Huang S. Z.; Huang, Q.; Zhang, H. B.; Chen, Y. T.; Leng, G. Y. |
| 发表日期 | 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 |
| 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. |
入库方式： OAI收割
来源：地理科学与资源研究所
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