TY - GEN
T1 - Monitoring of aquifer pump tests with Magnetic Resonance Sounding (MRS)
T2 - 7th International Conference on Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009
AU - Herckenrath, D.
AU - Auken, E.
AU - Bauer-Gottwein, P.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
KW - Coupled hydrogeophysical inversion
KW - Magnetic Resonance Sounding (MRS)
KW - Pump test
UR - http://www.scopus.com/inward/record.url?scp=84860559045&partnerID=8YFLogxK
M3 - Conference article in proceedings
AN - SCOPUS:84860559045
SN - 9781907161155
T3 - IAHS-AISH Publication
SP - 267
EP - 271
BT - Calibration and Reliability in Groundwater Modelling
Y2 - 20 September 2009 through 23 September 2009
ER -