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Yarmouk University (2019)

Hydrogeological and Hydrochemical Modeling of Wadi Zeglab Catchment NW-Jordan

Ahmed, Maha Thabit

Titre : Hydrogeological and Hydrochemical Modeling of Wadi Zeglab Catchment NW-Jordan

Auteur : Ahmed, Maha Thabit

Université de soutenance : Yarmouk University

Grade : Master of Science (MS) in Geology 2019

Résumé
This study attempts to determine the hydrogeological characteristics of Wadi Ziqlab catchment including recharge rate, depth to water table level, head elevation in saturated zone, saturated thickness and flow directions by using MIKE SHE software and then figure out the reasons behind the fluctuation in water table from 1997 to 2018. This model was used for groundwater modeling in Wadi Ziqlab. It is one of the few hydrologic models that was initially developed to integrate surface water and groundwater modeling capabilities. MIKE SHE created clear hydrogeological image of simulated period from January 1997 to June 2018 for Wadi Ziqlab included recent recharge rate with an average of 2.3 mm/d, depth to groundwater level with an average of 89 m, head elevation with an average of 214 m, saturated thickness with an average 160 m and the groundwater flow from SE to NW within the whole basin in 2018, while in January 1997 the simulated period included depth to groundwater level with an average of 60 m, head elevation with an average of 255 m and saturated thickness with an average of 192 m. The model results showed a clear drop in water table level in the study area from 1997 to 2018 with an average of 1.4 m per year and this declination is caused by over pumping and urbanization factors. The chemical analysis of the water samples from wells and springs of Wadi Ziqlab catchment confirmed that the water type in the study area is Ca-HCO3 and its polluted by nitrate and it needs treatment to be drinkable

Mots Clés : groundwater modeling, MIKE SHE, Wadi Ziqlab, water table level, over pumping, urbanization.

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Page publiée le 22 avril 2022