Pulido Velázquez, D.; Llopis Albert, C.; Peña Haro, S.; Pulido Velázquez, MA. (2011). Efficient conceptual model for simulating the effect of aquifer heterogeneity on natural groundwater discharge to rivers. ADVANCES IN WATER RESOURCES. 34(11):1377-1389. https://doi.org/10.1016/j.advwatres.2011.07.010
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/30481
Title:
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Efficient conceptual model for simulating the effect of aquifer heterogeneity on natural groundwater discharge to rivers
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Author:
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Pulido Velázquez, David
Llopis Albert, Carlos
Peña Haro, Salvador
Pulido Velázquez, Manuel Augusto
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials
Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient
Universitat Politècnica de València. Instituto Universitario de Ingeniería del Agua y del Medio Ambiente - Institut Universitari d'Enginyeria de l'Aigua i Medi Ambient
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Issued date:
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Abstract:
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[EN] When linearity can be assumed (linear response of heads to stresses), stream-aquifer flow exchange can be simulated as the drainage of a number of independent linear reservoirs. This conceptual model, which can be ...[+]
[EN] When linearity can be assumed (linear response of heads to stresses), stream-aquifer flow exchange can be simulated as the drainage of a number of independent linear reservoirs. This conceptual model, which can be mathematically deduced in a univocal way from an eigenvalue solution of the linear groundwater flow problem, facilitates the understanding of the physical phenomenon and the analysis of influencing factors. The number of reservoirs required to simulate stream depletion in some ideal homogeneous cases of stream-aquifer connection was analyzed in detail in a previous investigation using analytical eigenvalue solutions [16]. However, most aquifers are heterogeneous in nature and numerical solutions must be employed to analyze whether they could also be simulated using few reservoirs. This paper presents a stochastic analysis of the influence of heterogeneity on the simulation of natural groundwater discharges in aquifers connected to rivers, as a series of linear reservoirs. A Monte-Carlo approach was employed to perform this study. The results show that, on a monthly time scale, many cases (even heterogeneous aquifers) can be simulated using just a few reservoirs with sufficient accuracy and at minimum computational cost. Therefore, this modeling technique can be useful to efficiently simulate the integrated management of complex water resources systems at the basin scale (with many aquifers, reservoirs, demands, etc.) that need to simultaneously consider surface and groundwater flow and stream-aquifer interaction. © 2011 Elsevier Ltd.
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Subjects:
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Conceptual model
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Eigenvalue techniques
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Heterogeneity
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Linear reservoir
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Natural discharge
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Linear reservoirs
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Aquifers
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Computer simulation
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Discharge (fluid mechanics)
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Eigenvalues and eigenfunctions
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Groundwater flow
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Hydrogeology
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Rivers
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Underground reservoirs
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Groundwater resources
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Accuracy assessment
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Aquifer
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Conceptual framework
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Discharge
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Efficiency measurement
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Eigenvalue
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Flow modeling
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Groundwater-surface water interaction
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Monte Carlo analysis
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Stochasticity
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Copyrigths:
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Cerrado |
Source:
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ADVANCES IN WATER RESOURCES. (issn:
0309-1708
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DOI:
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10.1016/j.advwatres.2011.07.010
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.advwatres.2011.07.010
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Project ID:
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info:eu-repo/grantAgreement/MICINN//CGL2009-13238-C02-01/ES/Generación y simulación de escenarios futuros de hidrología superficial y subterránea (GESHYDRO)/
info:eu-repo/grantAgreement/MICINN//CGL2009-13238-C02-02/ES/Modelos hidroeconómicos para adaptar la gestión de sistemas de recursos hídricos al cambio climático (HYDROECOCLIMATE)/
European Community 226536
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Thanks:
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The authors thank the reviewers for their comments, which have helped to improve significantly the clarity of the original manuscript. This research has been supported by the SAWARES project (GESHYDRO CGL2009-13238-C02-01 ...[+]
The authors thank the reviewers for their comments, which have helped to improve significantly the clarity of the original manuscript. This research has been supported by the SAWARES project (GESHYDRO CGL2009-13238-C02-01 & HYDROECOCLIMATE CGL2009-13238-C02-02) of the Spanish Ministry of Science and Innovation (Plan Nacional I+D+I 2008-2011) and the European Community 7th Framework Project GENESIS (226536) on groundwater systems.
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Type:
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Artículo
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