Probability analysis and control of river runoff-sediment characteristics based on pair-copula functions: The case of the Weihe River and Jinghe River | |
You, Qiying1,2,3,4; Jiang, Hao5; Liu, Yan1,3,4; Liu, Zhao1,3,4; Guan, Zilong1,3,4 | |
作者部门 | 光子制造系统与应用研究中心 |
2019 | |
发表期刊 | Water (Switzerland) |
ISSN | 20734441 |
卷号 | 11期号:3 |
产权排序 | 5 |
摘要 | Analyzing the encounter frequency of high-low runoff and sediment yield is important for the appropriate dispatching of runoff-sediment resources, as well as river regulation. However, there have been no reports on the utilization of the pair-copula function in analyzing the runoff-sediment characteristics from a probabilistic perspective and conducting probability control on the runoff-sediment yields of different hydrologic stations. This paper builds marginal distribution functions on the basis of kernel distribution theory. In addition, this paper builds the joint distribution functions through pair-copula functions in order to analyze the encounter probability and the compensation characteristics of high-low runoff and sediment at different stations on the Weihe River in China, as well as the origins of runoff-sediment, to conduct probability control of river runoff-sediment resource allocation. The results show that, in different periods, the synchronous probability of high-low runoff of theWeihe River's Xianyang and Huaxian Stations, and the Jinghe River's Zhangjiashan Station differ, while that of high-low sediment at the three stations changes little-remaining at around 54%. Therefore, the sediment and runoff of theWeihe River apparently have different origins. In years of high and low runoff, if the runoffs of the Xianyang and Zhangjiashan Stations can be kept within a certain range, then the runoff of the Huaxian Station will be in a particular range, at a certain probability. Sediment at the Huaxian Station can be controlled, in a similar way. These results are of great significance for the water and sediment management department of the Weihe river, in order to reasonably allocate water and sediment resources. © 2019 by the authors. |
关键词 | copula distribution probability runoff sediment |
DOI | 10.3390/w11030510 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000464527500009 |
出版者 | MDPI AG, Postfach, Basel, CH-4005, Switzerland |
EI入藏号 | 20191506763910 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/31369 |
专题 | 光子制造系统与应用研究中心 |
通讯作者 | You, Qiying |
作者单位 | 1.School of Environmental Science and Engineering, Chang'an University, 126 Yanta Road, Xi'an; 710054, China; 2.College of Science, Chang'an University, Xi'an; 710064, China; 3.Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Ministry of Education, Chang'an University, 126 Yanta Road, Xi'an; 710054, China; 4.Institute ofWater and Development, Chang'an University, 126 Yanta Road, Xi'an; 710054, China; 5.Xi'an Institute of Optics and Precision Mechanics of Cas, Xi'an; 710070, China |
推荐引用方式 GB/T 7714 | You, Qiying,Jiang, Hao,Liu, Yan,et al. Probability analysis and control of river runoff-sediment characteristics based on pair-copula functions: The case of the Weihe River and Jinghe River[J]. Water (Switzerland),2019,11(3). |
APA | You, Qiying,Jiang, Hao,Liu, Yan,Liu, Zhao,&Guan, Zilong.(2019).Probability analysis and control of river runoff-sediment characteristics based on pair-copula functions: The case of the Weihe River and Jinghe River.Water (Switzerland),11(3). |
MLA | You, Qiying,et al."Probability analysis and control of river runoff-sediment characteristics based on pair-copula functions: The case of the Weihe River and Jinghe River".Water (Switzerland) 11.3(2019). |
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Probability analysis(2007KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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