State Water Resources Research Institute Program

Project ID: 2012NJ309B
Title: Predicting the matric potential of unsaturated porous media using nuclear magnetic resonance
Project Type: Research
Start Date: 3/01/2012
End Date: 2/28/2013
Congressional District: NJ-010
Focus Categories: Groundwater, Hydrology, Methods
Keywords: NMR, matric potential, vadose zone
Principal Investigators: Falzone, Sam; Keating, Kristina
Federal Funds: $ 5,000
Non-Federal Matching Funds: $ 10,001
Abstract: Quantifying matric potential is essential for predicting groundwater flow within the vadose zone. Current methods of determining matric potential consist of invasive instruments such as tensiometers, which can alter the natural hydrogeological state of the vadose zone. Nuclear Magnetic Resonance (NMR) is a non-invasive geophysical method that is sensitive to the presence as well as physical and chemical environments of hydrogen in a porous media. This study consists of a joint laboratory and field study to confirm the hypothesis: NMR relaxation times can be used to determine matric potential.

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