Spatial Pattern Characterization and Multivariate Hydrological Frequency Analysis of Extreme Precipitation in the Pearl River Basin, China
文献类型：SCI/SSCI论文
| 作者 | Xia J. |
| 发表日期 | 2012 |
| 关键词 | Rainfall extreme Copula theory Spatial pattern Regional frequency Flood management Pearl River Basin archimedean copulas rainfall distributions |
| 英文摘要 | Consecutive extreme rainfall events, especially those having unfavourable spatio-temporal patterns, always trigger large floods. This paper aims to examine, through the multivariate hydrological frequency analysis, the probability of the synchronous occurrence of rainfall extremes in the Pearl River basin. The copula method together with the stationarity and independence tests, which are crucial to the valid use of statistical methods in regional frequency analyses, were applied in the study. The obtained results indicate that: (1) major precipitation events of the annual maximum 1-, 3-, 5- and 7-day rainfall recorded at 42 stations are the flat looking series and variables are independent, (2) the marginal distribution of all extreme rainfall variables in four homogeneous hydrologic regions fits the log-normal probability distribution and most of their joint distribution fits the Gumbel-Hougaard distribution, (3) on that basis the contour maps of the joint distribution of annual maximum 1-, 3-, 5- and 7-day rainfall between different regions are drawn and the probability of the synchronous occurrence of the extreme rainfalls in different regions are estimated. These findings have great practical value for the regional water resources and flood risk management and are important in exploration of the spatial patterns of rainfall extremes in the Pearl River basin in order to reveal the underlying linkages between precipitation and floods from a broader geographical perspective. |
| 出处 | Water Resources Management |
| 卷 | 26 |
| 期 | 12 |
| 页 | 3619-3637 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0920-4741 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30678]  |
| 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 | Xia J.. Spatial Pattern Characterization and Multivariate Hydrological Frequency Analysis of Extreme Precipitation in the Pearl River Basin, China. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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