[1182] - Monitoring of an infiltration experiment using electrical impedance tomography

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Kelter, M., 2014. Monitoring of an infiltration experiment using electrical impedance tomography. PhD Report, Institute of Bio- and Geosciences (IBG-3), Research Center Jülich, Jülich, Germany. Accessed from https://www.tr32db.uni-koeln.de/data.php?dataID=1182 at 2019-07-20.
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Title(s):Main Title: Monitoring of an infiltration experiment using electrical impedance tomography
Alternative Title: 5th report
Description(s):Abstract: An infiltration experiment was performed on a constructed test facility. The infiltration was monitored, using time domain reflectometry (TDR), ground penetrating radar (GPR), electromagnetic induction (EMI), nuclear magnetic resonance (NMR) and electrical impedance tomography (EIT) in order to capture the water dynamics in space and time with different geophysical measurement techniques. EIT was performed on two profiles, one with stainless steel electrodes in the middle of the irrigated plot and another with non-polarizable Cu/CuSO4 electrodes which was one meter away from the steel electrode profile. Results show considerable heterogeneities in the dynamics of electrical conductivity, which is seen as a proxy for soil water content. A comparison of the used electrodes for the EIT measurements showed that non-polarizing electrodes not only improve the quality of the phase measurements but also showed a more stable electrical contact than the steel electrodes, which have had problems with the multiple infiltration/drainage cycles due to swelling and shrinking of the soil. Both EIT profiles were strongly affected by the installed TDR sensors due to electrode polarization at the metal-water interface and the electromagnetic pulses during the TDR measurements.
Responsible Party
Creator(s):Author: Matthias Kelter
Publisher:CRC/TR32 Database (TR32DB)
TR32 Topic:Soil
Related Sub-project(s):A3
Subject(s):CRC/TR32 Keywords: PhD Report
File Details
File Name:Kelter_2014_2.docx
Data Type:Text
File Size:3994 kB (3.9 MB)
Date(s):Date Submitted: 2014-08-01
Mime Type:application/vnd.openxmlformats-officedocument.wordprocessingml.document
Data Format:MS word
Download Permission:OnlyTR32
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:TR32DB Data policy agreement
North:-no map data
Measurement Region:Ellebach
Measurement Location:Selhausen
Specific Informations - Report
Report Date:1st of August, 2014
Report Type:PhD Report
Report City:Jülich, Germany
Report Institution:Institute of Bio- and Geosciences (IBG-3), Research Center Jülich
Further Informations:TR32 Student Report Phase II
Metadata Details
Metadata Creator:Matthias Kelter
Metadata Created:2015-09-15
Metadata Last Updated:2015-09-15
Funding Phase:2
Metadata Language:English
Metadata Version:V40
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Dataset Downloads:2
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