The joint probability distribution of runoff and sediment and its change characteristics with multi-time scales

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Title:The joint probability distribution of runoff and sediment and its change characteristics with multi-time scales
Creators:
Zhang, Jinping; jinping2000_zh at 163 dot com; Institute of Water Resources and Environment, Zhengzhou University, High-tech District, No. 100 Science Road, Zhengzhou City, 450001, Henan Province, China.
Ding, Zhihong; Haihe River Water Conservancy Commission, Tianjin, 300072, China.
You, Jinjun; State Key Laboratory of Hydrologic Cycle Simulation and Regulation, China Institute of Water Resources & Hydropower Research, Beijing, 100038, China.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 62, 3, pp. 218-225
Uncontrolled Keywords:runoff, sediment, joint probability distribution, copula, empirical mode decomposition method

Abstract

River runoff and sediment transport are two related random hydrologic variables. The traditional statistical analysis method usually requires those two variables to be linearly correlated, and also have an identical marginal distribution. Therefore, it is difficult to know exactly the characteristics of the runoff and sediment in reality. For this reason, copulas are applied to construct the joint probability distribution of runoff and sediment in this article. The risk of synchronous-asynchronous encounter probability of annual rich-poor runoff and sediment is also studied. At last, the characteristics of annual runoff and sediment with multi-time scales in its joint probability distribution space are simulated by empirical mode decomposition method. The results show that the copula function can simulate the joint probability distribution of runoff and sediment of Huaxia hydrological station in Weihe River well, and that such joint probability distribution has very complex change characteristics at time scales.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:The joint probability distribution of runoff and sediment and its change characteristics with multi-time scales
Translated title:The joint probability distribution of runoff and sediment and its change characteristics with multi-time scales
Creators:
Zhang, Jinping; jinping2000_zh at 163 dot com; Institute of Water Resources and Environment, Zhengzhou University, High-tech District, No. 100 Science Road, Zhengzhou City, 450001, Henan Province, China.
Ding, Zhihong; Haihe River Water Conservancy Commission, Tianjin, 300072, China.
You, Jinjun; State Key Laboratory of Hydrologic Cycle Simulation and Regulation, China Institute of Water Resources & Hydropower Research, Beijing, 100038, China.
Uncontrolled Keywords:runoff, sediment, joint probability distribution, copula, empirical mode decomposition method
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:62
Number:3
Page Range:pp. 218-225
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8286
Item Type:Article
Deposited On:01 Oct 2014 13:27
Last Modified:01 Oct 2014 11:27

Citation

Zhang, Jinping; Ding, Zhihong; You, Jinjun (2014) The joint probability distribution of runoff and sediment and its change characteristics with multi-time scales. Journal of Hydrology and Hydromechanics, 62 (3). pp. 218-225. ISSN 0042-790X

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