Monitoring of aquifer pump tests with Magnetic Resonance Sounding (MRS): a synthetic case study

Daan Herckenrath, E. Auken, Peter Bauer-Gottwein

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    Magnetic Resonance Sounding (MRS) can provide valuable data to constrain and calibrate groundwater flow and transport models. With this non-invasive geophysical technique, measurements of water content and hydraulic conductivity can be obtained. We developed a hydrogeophyiscal forward method, which calculates the MRS-signal generated by an aquifer pump test. A synthetic MRS-dataset was subsequently used to determine the hydrogeological parameters in an inverse parameter estimation approach. This was done for a virtual pump test with a partially and a fully penetrating well. With the MRS data we were able to retrieve the hydrogeological parameters of the aquifer. However, the differences in MRS signal in time were small compared to the electromagnetic noise. This limits the applicability of the MRS technique for pump tests in which a partially penetrating pumping well is used, as the limited drawdown around the extraction well causes smaller changes in received signal.
    Original languageEnglish
    Title of host publicationCalibration And Reliability In Groundwater Modelling: Managing Groundwater And The Environment
    Volume341
    PublisherIAHS Press
    Publication date2011
    Pages267-272
    ISBN (Print)9781907161155
    Publication statusPublished - 2011
    Event7th International Conference on Calibration and Reliability in Groundwater Modeling - Wuhan, China
    Duration: 20 Sept 200923 Sept 2009
    Conference number: 7

    Conference

    Conference7th International Conference on Calibration and Reliability in Groundwater Modeling
    Number7
    Country/TerritoryChina
    CityWuhan
    Period20/09/200923/09/2009
    SeriesIAHS Publications Series (Red Books)
    Volume341
    ISSN0144-7815

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