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dc.contributor.authorElçi, Alper
dc.contributor.authorŞimşek, Celalettin
dc.contributor.authorGündüz, Orhan
dc.contributor.authorBaba, Alper
dc.contributor.authorAcınan, Sezen
dc.contributor.authorYıldızer, Nilgün
dc.contributor.authorMurathan, Alim
dc.date.accessioned2019-09-02T13:56:20Z
dc.date.available2019-09-02T13:56:20Z
dc.date.issued2015en_US
dc.identifier.urihttps://hdl.handle.net/11147/7252
dc.descriptionEWRA 2015 -9th World Congress -İstanbul- June 10-13 / 2015 “Water Resources Management in a Changing World: Challenges and Opportunities”en_US
dc.description.abstractThe objective of this paper is to present the approach and results of a groundwater flow modeling study that was conducted for the Gediz River Basin (GRB), located in western Turkey. The GRB is one of the most important, largest and stressed river basins in Turkey. This basin is agriculture-dominant; however significant competition for water exists among various stakeholders and sectors. The model is set up as a two-dimensional, finite-difference MODFLOW-2005 model that is solved for steady-state conditions, representing average annual groundwater flow in the basin. The main purpose of the groundwater flow model is to determine groundwater flow dynamics and water budget for the alluvial aquifers of the GRB. Pumping wells in the GRB predominantly withdraw water from these aquifers. A model-based estimate of the hydraulic conductivity distribution is also obtained. A two-stage modeling approach is taken to determine boundary conditions of the alluvial aquifer model domain. This approach results in two independently calibrated models that are referred as baseline and alluvial flow models. Modeled groundwater heads of both models provide an acceptable fit to observed data. The range of hydraulic conductivity (K) values is from 0.01 to 4451 m/d indicating a very heterogeneous aquifer. The median K value is 34.92 m/d and the standard deviation is 366.45 m/d. According to the baseline flow model budget, it can be concluded that the most significant groundwater input for the entire GRB is leakage from surface water such as dam reservoirs and the Gediz riverbed. In the alluvial aquifer, surface water still plays an important role in the water balance, however lateral flows across aquifer boundaries are the most important component. Also, groundwater extraction is larger than groundwater recharge by precipitation.en_US
dc.language.isoengen_US
dc.publisherEuropean Water Resources Associationen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectWatersheden_US
dc.subjectGroundwater modelen_US
dc.subjectMODFLOWen_US
dc.titleSimulation of groundwater flow in the Gediz River Basinen_US
dc.typeconferenceObjecten_US
dc.contributor.authorID0000-0001-5307-3156en_US
dc.contributor.institutionauthorBaba, Alper
dc.relation.journalEWRA 2015 -9th World Congressen_US
dc.contributor.departmentIzmir Institute of Technology. Civil Engineeringen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US


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