An approach to identify urban groundwater recharge

Vàzquez-Suñé, Enric; Carrera, Jesús; Tubau, Isabel; Sánchez-Vila, Xavier; Soler, Albert

doi:10.5194/hess-14-2085-2010

Cited by 105 publications

(42 citation statements)

References 53 publications

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“…All the information from construction projects, surveys, and nearby exposures together with geophysical profiles (Martí et al, 2008;Gámez et al, 2009;Velasco, 2013;Velasco et al, 2012a and b) were standardized and entered into the geodatabase for modelling and analysis in a geographic information system (GIS) environment, concretely, in ArcGIS (ESRI). This geospatial database is part of a complete ongoing software platform that arranges all the available data into a coherent structure and provides support for their proper management, analysis, and interpretation.…”

Section: New Data Acquisition and Methodologymentioning

confidence: 99%

“…The data from each field complement the interpretation of data from the rest of the fields. For example, a reliable geological analysis enables us to perform a proper parameterization of the study area that can be complemented with an aquifer test, or a detailed hydrochemical analysis allows us to re-interpret the geology (Velasco, 2013).…”

Section: E Vázquez-suñé Et Al: a Geological Model For The Managemenmentioning

confidence: 99%

“…2) whose core is a standardized geodatabase containing all existing data and to which new data can be continuously added (Velasco, 2013). A set of tools developed for ArcGIS is coupled to this geodatabase and facilitates the visualization, processing, and analysis of the data.…”

Section: Quaternary Stratigraphymentioning

confidence: 99%

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A geological model for the management of subsurface data in the urban environment of Barcelona and surrounding area

et al. 2016

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Abstract. The overdevelopment of cities since the industrial revolution has shown the need to incorporate a sound geological knowledge in the management of required subsurface infrastructures and in the assessment of increasingly needed groundwater resources. Additionally, the scarcity of outcrops and the technical difficulty to conduct underground exploration in urban areas highlights the importance of implementing efficient management plans that deal with the legacy of heterogeneous subsurface information. To deal with these difficulties, a methodology has been proposed to integrate all the available spatio-temporal data into a comprehensive spatial database and a set of tools that facilitates the analysis and processing of the existing and newly added data for the city of Barcelona (NE Spain). Here we present the resulting actual subsurface 3-D geological model that incorporates and articulates all the information stored in the database. The methodology applied to Barcelona benefited from a good collaboration between administrative bodies and researchers that enabled the realization of a comprehensive geological database despite logistic difficulties. Currently, the public administration and also private sectors both benefit from the geological understanding acquired in the city of Barcelona, for example, when preparing the hydrogeological models used in groundwater assessment plans. The methodology further facilitates the continuous incorporation of new data in the implementation and sustainable management of urban groundwater, and also contributes to significantly reducing the costs of new infrastructures.

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Section: New Data Acquisition and Methodologymentioning

confidence: 99%

Section: E Vázquez-suñé Et Al: a Geological Model For The Managemenmentioning

confidence: 99%

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A geological model for the management of subsurface data in the urban environment of Barcelona and surrounding area

et al. 2016

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“…The groundwater management in urban areas is a hard task for hydrogeologists (Lerner and Barret 1996;Chilton 1998;Giudici et al 2000;Howard 2007;Li et al 2013;Valota et al 2002;Vázquez-Suñé et al 2010;Kruse et al 2013). The characterization of aquifers has to take into account the anthropogenic (people-induced) piezometric fluctuations and possible contamination.…”

Section: Introductionmentioning

confidence: 99%

Groundwater Mass Balance in Urbanized Areas Estimated by a Groundwater Flow Model Based on a 3D Hydrostratigraphical Model: the Case Study of the Eastern Plain of Naples (Italy)

Ducci

Sellerino

2015

Water Resour Manage

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Since 2001, a rising water table occurred in the eastern part of the city of Naples (Italy), leading to flooding of the foundations of many buildings and of the underground infrastructures (garages, subway tracks, etc.). This resulted from the reduction in the exploitation of water for industrial use and drinking water in the central part of the groundwater body of the eastern plain of Naples: the groundwater withdrawal decreased from up to 3 m3/s in 1990 to a few hundred litres per second in 1998. The variation of piezometric levels led to flooding of foundations of many buildings and of underground infrastructures, this is a big amount of water lost by the aquifer system and that should be evaluated. In order to assess aquifer hydraulic features and the groundwater quantitative status, a 3D hydrostratigraphic model reconstruction was developed to support groundwater flow modeling and the evaluation of the groundwater balance. \ud The 3D hydrostratigraphic model reconstructed the subsoil of the study area: layers of tuff and lenses of peat, which play an important hydrogeologic role as aquitard and aquiclude, are faithfully defined. Indeed, the model allows the depiction of the horizontal extension and of the thickness of each hydrofacies, even if strongly heteropic. \ud The groundwater flow model was defined using the 3D hydrostratigraphic model in the construction of the geometry and assignment of hydrodynamic parameters. The calibration and sensitivity analysis prove the goodness of the assigned hydraulic conductivity values. \ud \ud The model, together with a detailed computation of the paved areas with reduced infiltration, evaluated the recharge in 0.101 m3/s. The model calibration assessed an evaporation rate lower than the prefixed value, probably due to the absence of vegetation that restricts the phenomenon almost exclusively to evaporation. Moreover, the calibration of the model confirmed: - the assumed groundwater flow towards the sea in 0.313 m3/s; - the hypothesized amount of the subsurface inflow from upstream in 0.504 m3/s. A considerable amount of water lost by the aquifer system, about 0.315 m3/s, could be used by Municipality for different public uses

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“…Water budgets in urban areas are modified by installation of "impervious" cover, widespread use of import water, construction of soakways and drainage swales, concentration of septic tanks, over-irrigation, and groundwater leakage to and from sewer and water pipes. These groundwater flow terms and associated water budgets in urban areas are difficult to quantify (Lerner 2002;Vazquez-Sune et al 2010). Pipe leakage and delivered water return flow, for example, are frequently extrapolated from coefficients taken from often limited studies in other urbanized basins.…”

mentioning

confidence: 99%

Groundwater in Urban Areas

Hibbs

2016

Contemporary Water Research

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An approach to identify urban groundwater recharge

Cited by 105 publications

References 53 publications

A geological model for the management of subsurface data in the urban environment of Barcelona and surrounding area

A geological model for the management of subsurface data in the urban environment of Barcelona and surrounding area

Groundwater Mass Balance in Urbanized Areas Estimated by a Groundwater Flow Model Based on a 3D Hydrostratigraphical Model: the Case Study of the Eastern Plain of Naples (Italy)

Groundwater in Urban Areas

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