Predicting Daily Water Table Fluctuations in Karstic Aquifers from GIS-Based Modelling, Climatic Settings and Extraction Wells

Concepcion Pla (), Javier Valdes-Abellan, Antonio Jose Tenza-Abril and David Benavente
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Concepcion Pla: Universidad de Alicante
Javier Valdes-Abellan: Universidad de Alicante
Antonio Jose Tenza-Abril: Universidad de Alicante
David Benavente: Universidad de Alicante

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2016, vol. 30, issue 7, No 26, 2545 pages

Abstract: Abstract In semiarid regions, karstic aquifers are in some cases essential since they often constitute the only source of water supply. The increasing demand for water in these regions is responsible for the decreasing water table levels. As a consequence, groundwater management becomes indispensable. A robust black-box model of the Solana aquifer, a large karstic aquifer in Alicante province, is developed considering GIS-based modelling of the studied area, climatic settings and anthropic disturbances (water extractions and irrigation returns). The proposed model accurately predicts water table levels evolution (with EF index of 0.97 and RMSE of 0.09) and assesses the recharge rates. The model aims to become a useful tool in order to better understand the characteristics of karstic aquifers. A distinctive feature of the model is that it estimates the heterogeneous effective porosities along the depth profiles of the aquifer, which provides an advantage related to detect changes in the hydraulic transmissivity within karstic formations.

Keywords: Karstic aquifer; Recharge; Effective porosity; Semiarid regions; Simple model (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s11269-016-1302-1

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