Monitoring technique of freshwater/ saltwater interface level using time domain reflectometry

为建立沿海含水层淡水资源盐渍化监测技术，研制了一种新型的淡水/咸水界面水位探头，并通过室内实验对探头的有效性进行了验证。在实验柱中假设产生界面，并通过设置在柱中心的探针测量液位变化。结果表明，当柱内产生清晰的界面时，探头可以测量液位。我们的结论是，所开发的探针是有用的监测淡水资源盐渍化在沿海含水层。

To establish a monitoring technique for salinization of freshwater resources stored in a coastal aquifer, a novel probe to measure freshwater/ saltwater interface level was developed and the effectiveness of the probe was examined through the laboratory experiment. The interface was hypothetically produced in the experimental column and the level variation was measured by the probe which was set at center of the column. The results showed that the level can be measured with the probe when the interface was produced clearly in the column. We concluded that the developed probe is useful for monitoring the salinization of freshwater resources in a coastal aquifer.