Geological characteristics and hydrology, including the structure of the study area. If the study area there is a sludge layer groundwater in coastal heavy stone base layers away from the shore would risk the occurrence of encroachments.
Geology and hydrology, including the structure of the study area. The study area has a coastal aquifers by thick sedimentary layers of rock away from the shore base will inevitably create risks to the encroachment of the sea.
The geology and hydrology, including the structure of the study area. If the study area, coastal sediment layer thick layer groundwater by rock base away from the coast is very surely will be the risk of seawater intrusion.