运用三维变密度潮汐效应模型确定滨海含水系统的海底等效边界——山东烟台夹河中下游地区为例

成建梅; 陈崇希; 吉孟瑞; 孙桂明

Volume 28 Issue 2

Mar. 2003

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Article Navigation > Earth Science > 2003 > 28(2): 225-231

CHENG Jian-mei, CHEN Chong-xi, JI Meng-rui, SUN Gui-ming, 2003. Determination of Seaward Boundary with Three-Dimensional Density-Dependent Tidal Effect Model: By Example of Coastal Aquifers in Jiahe River Basin, Shandong Province. Earth Science, 28(2): 225-231.

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Determination of Seaward Boundary with Three-Dimensional Density-Dependent Tidal Effect Model: By Example of Coastal Aquifers in Jiahe River Basin, Shandong Province

1.
Institute of Environmental Geology, China University of Geosciences, Wuhan 430074, China
2.
Institute of Geotechnique Survey, The Third Geology Pioneer of Shangdong Province, Yantai 264000, China

Received Date: 2001-09-29
Publish Date: 2003-03-25

Abstract

Abstract

One of the main tasks in studying saltwater intrusion into coastal aquifer system is to determine the position of the saltwater-freshwater interface. For a natural confined aquifer, this position is related to the roof length of the aquifer extending under the sea. This information can be obtained from fluctuations of confined groundwater level caused by tidal effect of the sea. In the paper, taking account to the density difference between freshwater and seawater, a three-dimensional density-dependent tidal-effect model is developed in the Jiahe River basin, Shandong Province, China. The position of the aquifer roof extending under the sea, which is called the equivalent boundary toward sea, is determined by converging hydraulic head fluctuations data observed in the tidal-effect observation experiment. The aquifer parameters near the sea side are also estimated according to tidal fluctuation information.
- tidal effect of groundwater,
- variable-density,
- seaward boundary,
- three-dimensional model

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References(18)

References

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