Monitoring of an infiltration experiment using electrical impedance tomography
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| Titles: | Main Title: Monitoring of an infiltration experiment using electrical impedance tomography Alternative Title: 4th report |
| Description: | 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: | Matthias Kelter (Author) |
| Publisher: | CRC/TR32 Database (TR32DB) |
| Publication Year: | 2015 |
Topic
| TR32 Topic: | Soil |
| Related Subproject: | A3 |
| Subject: | Keyword: PhD Report |
File Details
| Filename: | Kelter_2014_1.docx |
| Data Type: | Text - Text |
| File Size: | 2.5 MB |
| Date: | Submitted: 01.02.2014 |
| Mime Type: | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| Data Format: | MS word |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Only Project Members |
| 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 |
Geographic
Specific Information - Report
| Report Date: | 1st of February, 2014 |
| Report Type: | PhD Report |
| Report City: | Jülich, Germany |
| Report Institution: | Institute of Bio- and Geosciences (IBG-3), Research Center Jülich |
| Further Information: | TR32 Student Report Phase II |
Metadata Details
| Metadata Creator: | Matthias Kelter |
| Metadata Created: | 15.09.2015 |
| Metadata Last Updated: | 15.09.2015 |
| Subproject: | A3 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 644 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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