Numerical modeling of the effects of beach slope on water-table fluctuation in the unconfined aquifer of Donghai Island, China
Numerical modeling of the effects of beach slope on water-table fluctuation in the unconfined aquifer of Donghai Island, China
复制标题
东海岛无承压含水层滩坡对地下水位波动影响的数值模拟
DOI：
10.1007/s10040-013-1045-5
复制
发表时间：
2014-03
影响因子：
2.8
通讯作者：
Ming Li
中科院分区：
文献类型：
--
作者：
Pengpeng Zhou;Guomin Li;Yaodong Lu;Ming Li
海滩坡度是影响滨海潜水层水位波动的重要因素。然而，关于海滩坡度对地下水位波动影响的研究还很有限，特别是对于缓坡地。为了解海滩坡度对海滩地下水动态的影响，建立了数值模型，并利用东海岛的实测数据进行了校正，模拟了观测到的地下水动态。进行敏感性分析，以评估地下水位波动的敏感性参数和模型的概念化。分析表明，地下水位波动对导水率和给水度特别敏感，模型区域的水平长度会影响地下水位波动的幅度。此外，还发现当滩坡角在1.5 ° ~ 45 °范围内变化时，振幅的变化更为明显，特别是在1.5 ° ~ 5 °范围内。了解海滩坡度对潮汐引起的地下水位动态的影响，可以帮助建模者在海滩地下水流模型中更好地处理坡度。[出版物摘要]
Beach slope is an important factor influencing the tide-induced water-table fluctuation in coastal unconfined aquifers. However, research about the effect of beach slope on water-table fluctuation is limited, especially for gentle slopes. To understand the effect of beach slope on beach groundwater dynamics, a numerical model, calibrated with field monitoring data from Donghai Island (China), was built to simulate the observed water-table fluctuation. Sensitivity analysis was performed to assess the sensitivity of water-table fluctuation to the parameters and conceptualization of the model. The analysis indicated that the water-table fluctuation was especially sensitive to the hydraulic conductivity and specific yield, and the horizontal length of the model domain could affect the amplitude of the water-table fluctuation. Moreover, it is found that the variation of the amplitude is more evident when the beach-slope angle changes in the range from 1.5 to 45, especially in the range from 1.5 to 5. Understanding the effect of beach slope on tide-induced water-table dynamics could help modelers deal with the slope better in their beach groundwater flow models.[PUBLICATION ABSTRACT]
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影响因子：
2.8
作者：
Jianmei Cheng;Chongxi Chen;Menrui Ji
通讯作者：
Jianmei Cheng;Chongxi Chen;Menrui Ji
影响因子：
3.2
作者：
Kue‐Young Kim;Taehee Kim;Yongje Kim;N. Woo
通讯作者：
Kue‐Young Kim;Taehee Kim;Yongje Kim;N. Woo
DOI：
10.1061/(asce)0733-950x(2004)130:4(191
发表时间：
2004-07
期刊：
Journal of Waterway Port Coastal and Ocean Engineering-asce
影响因子：
--
作者：
Bang Chen;S. Hsu
通讯作者：
Bang Chen;S. Hsu
影响因子：
5.8
作者：
Hailong Li;M. Boufadel
通讯作者：
Hailong Li;M. Boufadel
影响因子：
5.4
作者：
Terrie M. Lee
通讯作者：
Terrie M. Lee