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Modelling an induced thermal plume with data from electrical resistivity tomography and distributed temperature sensing: a case study in northeast Italy

Hydrogeology Journal, ISSN: 1435-0157, Vol: 26, Issue: 3, Page: 837-851
2018
  • 17
    Citations
  • 0
    Usage
  • 33
    Captures
  • 0
    Mentions
  • 15
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    17
    • Citation Indexes
      17
  • Captures
    33
  • Social Media
    15
    • Shares, Likes & Comments
      15
      • Facebook
        15

Article Description

Groundwater tracer tests are often used to improve aquifer characterization, but they present several disadvantages, such as the need to pour solutions or dyes into the aquifer system and alteration of the water’s chemical properties. Thus, tracers can affect the groundwater flow mechanics and data interpretation becomes more complex, hindering effective study of ground heat pumps for low enthalpy geothermal systems. This paper presents a preliminary methodology based on a multidisciplinary application of heat as a tracer for defining the main parameters of shallow aquifers. The field monitoring techniques electrical resistivity tomography (ERT) and distributed temperature sensing (DTS) are noninvasive and were applied to a shallow-aquifer test site in northeast Italy. The combination of these measurement techniques supports the definition of the main aquifer parameters and therefore the construction of a reliable conceptual model, which is then described through the numerical code FEFLOW. This model is calibrated with DTS and validated by ERT outcomes. The reliability of the numerical model in terms of fate and transport is thereby enhanced, leading to the potential for better environmental management and protection of groundwater resources through more cost-effective solutions.

Bibliographic Details

Matteo Cultrera; Jacopo Boaga; Giorgia Dalla Santa; Massimiliano De Seta; Antonio Galgaro; Eloisa Di Sipio

Springer Science and Business Media LLC

Environmental Science; Earth and Planetary Sciences

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