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Groundwater response to tidal fluctuation in a sloping leaky aquifer system

机译:倾斜的渗漏含水层系统中地下水对潮汐波动的响应

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The effect of tidal fluctuation on groundwater flow is an important issue from many aspects in coastal areas. This paper develops a new analytical solution to describe the groundwater fluctuation in a sloping coastal aquifer system which comprises an upper unconfined aquifer, a lower confined aquifer, and an aquitard in between. The solution is allowed to investigate the effects of bottom slope and leakage as well as aquifer parameters on head fluctuations in both unconfined and confined aquifers. The research result indicates that the effect of the bottom angle on the groundwater fluctuation and time lag is significant in the unconfined aquifer and not negligible if the leakage in the confined aquifer is large. In addition, the joint effects of aquifer parameters and bottom angle on groundwater fluctuation and time lag are also discussed.
机译:潮汐波动对地下水流量的影响是沿海地区许多方面的重要问题。本文提出了一种新的分析解决方案,来描述一个倾斜的沿海含水层系统中的地下水波动,该系统包括一个上部无限制含水层,一个下部封闭含水层以及两者之间的一个脱水层。该解决方案可以研究无限制和受限含水层中底面坡度和渗漏以及含水层参数对水头波动的影响。研究结果表明,在无承压含水层中,底角对地下水波动和时间滞后的影响显着,而在承压含水层中的渗漏较大的情况下,这种影响不可忽略。此外,还讨论了含水层参数和底角对地下水波动和时滞的联合影响。

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