Study of submarine groundwater discharge phenomenon using method of detection of direction and velocity of groundwater flow

本文主要研究潮汐周期变化对沙质海滩的影响，特别是对非饱和土层盐分浓度的影响。通过海水和淡水持水试验以及地表卤水变异性和降雨淋溶试验研究，验证了非饱和土层水盐浓度的同步运动。

In this paper, we focus on the impact on sandy beaches due to tidal cycle variation, especially on the salt concentration of unsaturated ground. We demonstrate experimentally the simultaneous movement of water and salt concentration of unsaturated ground by water retention test using seawater and freshwater and experimental study of leaching by the surface brine variability and rainfall.