globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-21-1439-2017
Scopus记录号: 2-s2.0-85015255956
论文题名:
Flow dynamics in hyper-saline aquifers: Hydro-geophysical monitoring and modeling
作者: Haaken K; , Deidda G; P; , Cassiani G; , Deiana R; , Putti M; , Paniconi C; , Scudeler C; , Kemna A
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期:3
起始页码: 1439
结束页码: 1454
语种: 英语
Scopus关键词: Aquifers ; Hydrogeology ; Porous materials ; Water ; Water management ; Water resources ; Density driven flows ; Electrical resistivity tomography ; Fresh water resources ; Geophysical monitoring ; Noninvasive technique ; Physicochemical process ; Semi-arid environments ; Threedimensional (3-d) ; Saline water ; aquifer ; experimental study ; flow modeling ; monitoring ; numerical model ; physicochemical property ; porous medium ; saline intrusion ; three-dimensional modeling ; water resource ; Cagliari ; Italy ; Sardinia
英文摘要: Saline-freshwater interaction in porous media is a phenomenon of practical interest particularly for the management of water resources in arid and semi-arid environments, where precious freshwater resources are threatened by seawater intrusion and where storage of freshwater in saline aquifers can be a viable option. Saline-freshwater interactions are controlled by physico-chemical processes that need to be accurately modeled. This in turn requires monitoring of these systems, a non-trivial task for which spatially extensive, high-resolution non-invasive techniques can provide key information. In this paper we present the field monitoring and numerical modeling components of an approach aimed at understanding complex saline-freshwater systems. The approach is applied to a freshwater injection experiment carried out in a hyper-saline aquifer near Cagliari (Sardinia, Italy). The experiment was monitored using time-lapse cross-hole electrical resistivity tomography (ERT). To investigate the flow dynamics, coupled numerical flow and transport modeling of the experiment was carried out using an advanced three-dimensional (3-D) density-driven flow-transport simulator. The simulation results were used to produce synthetic ERT inversion results to be compared against real field ERT results. This exercise demonstrates that the evolution of the freshwater bulb is strongly influenced by the system's (even mild) hydraulic heterogeneities. The example also highlights how the joint use of ERT imaging and gravity-dependent flow and transport modeling give fundamental information for this type of study. © 2017 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79231
Appears in Collections:气候变化事实与影响

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作者单位: Department of Geophysics, Steinmann Institute, University of Bonn, Meckenheimer Allee 176, Bonn, Germany; Dipartimento di Ingegneria Civile Ambientale e Architettura, Università di Cagliari, Via Marengo 2, Cagliari, Italy; Dipartimento di Geoscienze, Università di Padova, Via Gradenigo 6, Padova, Italy; Dipartimento di Beni Culturali, Università di Padova, Piazza Capitaniato 7, Palazzo Liviano Padova, Italy; Dipartimento di Matematica, Università di Padova, Via Trieste 63, Padova, Italy; Institut National de la Recherche Scientifique, Centre EAU Terre Environnement, Université du Québec, Rue de la Couronne 490, Québec, Canada; Björnsen Consulting Engineers, Maria Trost 3, Koblenz, Germany; Risk Management Solutions, Model Development, London, United Kingdom

Recommended Citation:
Haaken K,, Deidda G,P,et al. Flow dynamics in hyper-saline aquifers: Hydro-geophysical monitoring and modeling[J]. Hydrology and Earth System Sciences,2017-01-01,21(3)
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