Regional Hydrological Systems Analysis in the northern coastal plain of Java, Indonesia
Groundwater conditions in extensive humid tropical coastal lowlands such as found along the northern side of the island of Java, are closely related to the overall clayey and silty character of the sediments. The ample supply of suspended sediments in the present-day tropical humid and monsoonal setting is sufficient to result in a net outbuilding of coastal lowlands in a shallow marine and deltaic environment. Hydraulic gradients are far too small and permeabilities are usually too low, to ensure adequate flushing by groundwater flows of the recently deposited marine and deltaic sediments. In general, when marine and deltaic sediments predominate, fairly unfavourable groundwater conditions are met. Shallow and deep groundwaters may be highly mineralised (TDS up to several grams per litre) and mostly unfit for human or livestock consumption, even at great distances from a present-day coastline.
KeywordsGroundwater Flow Deep Groundwater Groundwater Flow System Deltaic Plain Coastal Lowland
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- Kloosterman, RH., 1989. Groundwater Flow Systems in the Northern Coastal Lowlands of West- and Central Java, Indonesia; An Earth-Scientific Approach. Ph.D thesis, Vrije Universiteit Amsterdam, 298 p.Google Scholar