GIS-supported mapping of low-temperature geothermal potential taking groundwater flow into account

García‐Gil, Alejandro; Vàzquez-Suñé, Enric; Alcaraz, Mar; Serrano-Juan, A.; Navarro, José Ángel Sánchez; Montlleó, Marc; Rodriguez, Giselle; Lao, Jose

doi:10.1016/j.renene.2014.11.096

Cited by 69 publications

(32 citation statements)

References 29 publications

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“…Two examples of this process at work in the management of geothermal resources in the vicinity of Barcelona are the studies by Alcaraz et al (2016) and García-Gil et al (2015a).…”

Section: Quaternary Stratigraphymentioning

confidence: 99%

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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“…Two examples of this process at work in the management of geothermal resources in the vicinity of Barcelona are the studies by Alcaraz et al (2016) and García-Gil et al (2015a).…”

Section: Quaternary Stratigraphymentioning

confidence: 99%

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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“…To estimate the very shallow geothermal energy potential of hGSHP systems, Bertermann et al (2014) included legal constraints, climatic parameters and soil textures. García-Gil et al (2015) proposed a low temperature geothermal potential (LTGP) for open-and closed-loop systems. They estimated the LTGP of the saturated zone using a steady-state analytical solution for conductive and advective heat transfer in porous media and applying a line source model for the unsaturated zone.…”

Section: Introductionmentioning

confidence: 99%

“…and (2018) focus on the potential of the groundwater body in the city of Basel. For the city of Barcelona, García-Gil et al (2015) contrasted the results for vGSHP and GWHP systems. Götzl et al (2010) conducted a comparative analysis of hGSHP and vGSHP systems for Austria.…”

Section: Introductionmentioning

confidence: 99%

Meeting the demand: geothermal heat supply rates for an urban quarter in Germany

et al. 2019

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Thermal energy for space heating and for domestic hot water use represents about a third of the overall energy demand in Germany. An alternative to non-renewable energy-based heat supply is the implementation of closed and open shallow geothermal systems, such as horizontal ground source heat pump systems, vertical ground source heat pump (vGSHP) systems and groundwater heat pump systems. Based on existing regulations and local hydrogeological conditions, the optimal site-specific system for heat supply has to be identified. In the presented technical feasibility study, various analytical solutions are tested for an urban quarter before and after building refurbishment. Geothermal heat supply rates are evaluated by providing information on the optimal system and the specific shortcomings. Our results show that standard vGSHP systems are even applicable in older and non-refurbished residential areas with a high heat demand using a borehole heat exchanger with a length of 100 m or in conjunction with multiple boreholes. After refurbishment, all studied shallow geothermal systems are able to cover the lowered heat demand. The presented analysis also demonstrates that ideally, various technological variants of geothermal systems should be evaluated for finding the optimal solution for existing, refurbished and newly developed residential areas. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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“…These systems can be found in aerial or submarine environments Wynn et al, 2007). In the sedimentary record, channelized systems can also represent interesting reservoirs for natural resources such as water and hydrocarbon (Fitterman et al, 1991;García-Gil et al, 2015;Mayall et al, 2006) or for storage of gas (e.g., carbon sequestration, Issautier et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Channelized Systems Through a Conditioned Reverse Migration Method

Parquer¹,

Collon²,

Caumon³

2017

Math Geosci

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Geological heterogeneities directly control underground flow. In channelized sedimentary environments, their determination is often underconstrained: it may be possible to observe the most recent channel path and the abandoned meanders on seismic or satellite images, but smaller-scale structures are generally below image resolution. In this paper, reconstruction of channelized systems is proposed with a stochastic inverse simulation reproducing the reverse migration of the system. Maps of the recent trajectories of the Mississippi river were studied to define appropriate relationships between simulation parameters. Measurements of curvature and migration vectors showed (i) no significant correlation between curvature and migration offset and (ii) correlation trends of downstream and lateral migration offsets versus the curvature at half-meander scale. The proposed reverse migration method uses these trends to build possible paleo-trajectories of the river starting from the last stage of the sequence observed on present-day (satellite or seismic) data. As abandoned meanders provide clues about the paleo-locations of the river, they are integrated step by step during the reverse simulation process. We applied the method on satellite images of a fluvial system. Each of the different resulting geometries of the system honors most of the available observations and presents meandering patterns that are similar to the observed ones.

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GIS-supported mapping of low-temperature geothermal potential taking groundwater flow into account

Cited by 69 publications

References 29 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

Meeting the demand: geothermal heat supply rates for an urban quarter in Germany

Reconstruction of Channelized Systems Through a Conditioned Reverse Migration Method

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