Effects of groundwater evaporation on the natural recharge to groundwater lenses residing in coastal dunes in Southern Central Vietnam

Abstract

Groundwater lenses in the coastal dunes along the South Central coast of Vietnam are often of shallow table. The lithologic composition of the vadose zone in these areas is mainly fine to medium-grained sand, characterised by high porosity. The vegetation is sparse, the annual time of
sunrise is long, the air temperature and surface evaporation are high. The above-mentioned conditions are favourable for the evaporation of the groundwater...