標題: | Stochastic analysis of stream-groundwater interaction subject to temporally correlated recharge |
作者: | Chang, Ching-Min Yeh, Hund-Der 環境工程研究所 Institute of Environmental Engineering |
關鍵字: | Stochastic analysis;Stream-aquifer system;Diffusion waves;Temporally correlated groundwater recharge;Variance of stream flow discharge |
公開日期: | 7-一月-2013 |
摘要: | In this article, the coupled equations describing the transient groundwater flow and stream flow fluctuations are solved based on the Fourier-Stieltjes integral representation, where the lateral inflow term in the stream flow perturbation equation connects the process of groundwater flow to that of stream flow. The closed-form solutions describing the variability in groundwater flow specific discharge and stream flow discharge are developed to quantify the influence of the variability in temporally correlated recharge in an unconfined aquifer on the stream flow discharge. We found from the closed-form solutions that the temporal correlation scale and the variance of recharge fields influence the variability in groundwater flow specific discharge and the stream flow discharge positively. In addition, the hydraulic diffusivity coefficient takes the role of reducing the variability in stream flow discharge. (C) 2012 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.jhydrol.2012.10.003 http://hdl.handle.net/11536/21265 |
ISSN: | 0022-1694 |
DOI: | 10.1016/j.jhydrol.2012.10.003 |
期刊: | JOURNAL OF HYDROLOGY |
Volume: | 476 |
Issue: | |
起始頁: | 490 |
結束頁: | 495 |
顯示於類別: | 期刊論文 |