Comparison of Groundwater Recharge Quantification Method

Ardana, Putu Doddy Heka and Sumarda, Gede and Sudika, I Gusti Made and Astariani, Ni Kadek (2020) Comparison of Groundwater Recharge Quantification Method. Solid State Technology, 63.

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Abstract

Groundwater recharge is an essential component in groundwater systems and significant in efficient and sustainable management of groundwater resources. In addition, it is also the most difficult quantity to determine. However, because it is nearly impossible to measure directly, numerous methods, ranging widely in complexity and cost, have been used to estimate recharge. Study of the groundwater recharge is important and to determine the recharge estimates based on the scale of space and time. In this paper, various techniques for predicting groundwater recharge are outlined and critically assessed concerning their limitations. Multiple methods for predicting groundwater recharge were discussed, involving the fluctuated of water-table method (WTF), Darcian approach, the water budget, soil water balance approach, rainfall infiltration factor, tracer techniques which involving chloride mass-balance and isotope method, all of which approached with dissimilar of assumptions and data requirements. Keywords: Groundwater recharge, WTF method, Darcian approach, the water budget, soil water balance, rainfall infiltration factor, tracer techniques

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