Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmod

Since the 1970’s the Ged Deeble (GD) basin is exploited to supply water to the town of Hargeisa (Somaliland, East Africa, 350,000 inhabitants). The goal of this work is to improve the comprehension of the recharge mechanisms, by the simulation of groundwater flow, in order to assess the sustainabili...

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Main Authors: Laura Cattaneo, Chiara Vassena, Mauro Giudici, Bruno Petrucci
Format: Article
Language:English
Published: PAGEPress Publications 2013-03-01
Series:Acque Sotterranee
Subjects:
Online Access:http://www.acquesotterranee.online/index.php/acque/article/view/139
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author Laura Cattaneo
Chiara Vassena
Mauro Giudici
Bruno Petrucci
author_facet Laura Cattaneo
Chiara Vassena
Mauro Giudici
Bruno Petrucci
author_sort Laura Cattaneo
collection DOAJ
description Since the 1970’s the Ged Deeble (GD) basin is exploited to supply water to the town of Hargeisa (Somaliland, East Africa, 350,000 inhabitants). The goal of this work is to improve the comprehension of the recharge mechanisms, by the simulation of groundwater flow, in order to assess the sustainability of present-day and future exploitation schemes that aim to satisfy the water demand of the city. For this goal, the exploration activities performed in the past were used to reconstruct the geological framework, the basin shape and the mechanisms of recharge and to define the conceptual model. The mathematical model YAGMod, that simulates groundwater steady flow in presence of head-dependent sources and boundary conditions, was applied to quantify the terms of the groundwater balance. Different management scenarios, accompanied by a sensitivity analysis, have been examined to verify if the future water demand of the city could be satisfied and to provide some indications about the land use planning and the management of water resources.
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spelling doaj.art-fbb5a3cb3ce8437ea3540ea8bf1f006f2022-12-21T20:36:07ZengPAGEPress PublicationsAcque Sotterranee1828-454X2280-64582013-03-012110.7343/as-018-13-0042139Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmodLaura Cattaneo0Chiara Vassena1Mauro Giudici2Bruno Petrucci3Università degli Studi di Milano Dipartimento di Scienze della Terra “A. Desio”, MilanoUniversità degli Studi di Milano, Dipartimento di Scienze della Terra “A. Desio”, MilanoUniversità degli Studi di Milano, Dipartimento di Scienze della Terra “A. Desio”, MilanoNGO Africa ’70Since the 1970’s the Ged Deeble (GD) basin is exploited to supply water to the town of Hargeisa (Somaliland, East Africa, 350,000 inhabitants). The goal of this work is to improve the comprehension of the recharge mechanisms, by the simulation of groundwater flow, in order to assess the sustainability of present-day and future exploitation schemes that aim to satisfy the water demand of the city. For this goal, the exploration activities performed in the past were used to reconstruct the geological framework, the basin shape and the mechanisms of recharge and to define the conceptual model. The mathematical model YAGMod, that simulates groundwater steady flow in presence of head-dependent sources and boundary conditions, was applied to quantify the terms of the groundwater balance. Different management scenarios, accompanied by a sensitivity analysis, have been examined to verify if the future water demand of the city could be satisfied and to provide some indications about the land use planning and the management of water resources.http://www.acquesotterranee.online/index.php/acque/article/view/139water resources, groundwater, arid regions, aquifer recharge, mathematical modelling
spellingShingle Laura Cattaneo
Chiara Vassena
Mauro Giudici
Bruno Petrucci
Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmod
Acque Sotterranee
water resources, groundwater, arid regions, aquifer recharge, mathematical modelling
title Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmod
title_full Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmod
title_fullStr Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmod
title_full_unstemmed Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmod
title_short Modelling groundwater recharge in an alluvial aquifer of Somaliland with the groundwater flow model YAGmod
title_sort modelling groundwater recharge in an alluvial aquifer of somaliland with the groundwater flow model yagmod
topic water resources, groundwater, arid regions, aquifer recharge, mathematical modelling
url http://www.acquesotterranee.online/index.php/acque/article/view/139
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AT maurogiudici modellinggroundwaterrechargeinanalluvialaquiferofsomalilandwiththegroundwaterflowmodelyagmod
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