Submarine Groundwater Discharge in the Coastal Zone

Global Colloquium on GeoSciences and Engineering 2017

Bakti, Hendra^1

Research Center for Geotechnology, Indonesia Institute of Sciences (LIPI), Bandung

40135, Indonesia^1

关键词: Clean waters;    Coastal area;    Groundwater hydraulics;    Hydrogeological properties;    Indonesia;    Marine environment;    Natural conditions;    Submarine groundwater discharge;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/118/1/012016/pdf
DOI  :  10.1088/1755-1315/118/1/012016

来源: IOP

【 摘 要 】

Indonesia is one of the archipelagic countries that has the longest coastline in the world. Because it is located in the tropics, in general it has a very high rainfall. Each island has a different morphology which is composed of a variety of rocks with different hydrogeological properties. This natural condition allows for the presence of groundwater in different amount in each island. The difference in groundwater hydraulics gradients in aquifer continuous to the sea has triggered the discharge of groundwater to offshore known as submarine groundwater discharge (SGD). Its presence can be as seepage or submarine springs with components derived from land and sea and a mixture between them. The understanding of SGD phenomenon is very important because it can be useful as a source of clean water in coastal areas, affecting marine health, and improving marine environment.