Determining aquifer characteristics by the tidal method
Determining aquifer characteristics by the tidal method
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DOI：
10.1029/wr005i005p01023
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发表时间：
1969-10
影响因子：
5.4
通讯作者：
P. Carr;G. Kamp
中科院分区：
文献类型：
--
作者：
P. Carr;G. Kamp
如果承压含水层的地下水位随海潮波动，则可以确定渗透系数和比容积值。根据Hvorslev[1951]建立的标准，考虑到观测装置的响应特性，首先根据位于海洋内陆的观测装置所记录的水位数据计算表观潮汐效率和时间滞后。然后，根据表观潮汐效率确定海岸含水层的真实潮汐效率，并利用该潮汐效率获得特定的储水量。利用这一点和潮汐时滞来计算水力传导度。该方法在加拿大爱德华王子岛进行了测试，结果与泵测试数据一致。这是在沿海环境中测试承压含水层的一种简单且廉价的方法。
If ground-water levels of a confined aquifer fluctuate with sea tides, individual values of hydraulic conductivity and specific storage can then be determined. Apparent tidal efficiency and time lag are first calculated from the water level data recorded at an observational device situated inland from the sea, taking into account the response characteristics of the observational device according to criteria established by Hvorslev [1951]. The true tidal efficiency of the aquifer at the seacoast is then determined from the apparent tidal efficiency and used to obtain the specific storage. This and the tidal time lag are utilized to calculate the hydraulic conductivity. The method was tested in Prince Edward Island, Canada, and yielded results compatible with pump test data. This is a simple and inexpensive way to test a confined aquifer in the coastal environment.