Details
| Original language | English |
|---|---|
| Pages (from-to) | 9620-9627 |
| Number of pages | 8 |
| Journal | Geophysical research letters |
| Volume | 46 |
| Issue number | 16 |
| Publication status | Published - 28 Aug 2019 |
| Externally published | Yes |
Abstract
Surface nuclear magnetic resonance (surface NMR) soundings are geophysical techniques that offer direct detection of groundwater. Ordinary surface NMR soundings are achieved with a wire loop that acts as both transmitter and receiver. We extend the capability of the technique by using a grounded electrical bipole as the measurement sensor. We provide the first successful measurements of surface NMR signals taken with a grounded electrode pair on a beach outside Perth, Western Australia. Simple changes to existing equations are sufficient to provide forward models for the changes in measurement technique, and the resulting groundwater models are consistent with coincident loop soundings. Our result opens the field for novel sounding techniques of surface NMR signals that could have broad impact on near-surface groundwater investigations.
Keywords
- bipoles, dipoles, groundwater, NMR, surface nuclear magnetic resonance
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geophysics
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
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In: Geophysical research letters, Vol. 46, No. 16, 28.08.2019, p. 9620-9627.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - First Measurements of Surface Nuclear Magnetic Resonance Signals in a Grounded Bipole
AU - Davis, A. C.
AU - Skibbe, N.
AU - Müller-Petke, M.
N1 - Funding information: A. C. D. thanks CSIRO for permission to publish. N. S. has received funds from the Deutsche Forschungsgemeinschaft (DFG) under Grant MU 3318/3?1. We thank Kevin Cahill for his assistance in the field. None of the authors have a conflict of interest with respect to the findings of this paper. Data are available from the CSIRO Data Access Portal (Davis, A.?C.?D. thanks CSIRO for permission to publish. N. S. has received funds from the Deutsche Forschungsgemeinschaft (DFG) under Grant MU?3318/3-1. We thank Kevin Cahill for his assistance in the field. None of the authors have a conflict of interest with respect to the findings of this paper. Data are available from the CSIRO Data Access Portal (Davis).
PY - 2019/8/28
Y1 - 2019/8/28
N2 - Surface nuclear magnetic resonance (surface NMR) soundings are geophysical techniques that offer direct detection of groundwater. Ordinary surface NMR soundings are achieved with a wire loop that acts as both transmitter and receiver. We extend the capability of the technique by using a grounded electrical bipole as the measurement sensor. We provide the first successful measurements of surface NMR signals taken with a grounded electrode pair on a beach outside Perth, Western Australia. Simple changes to existing equations are sufficient to provide forward models for the changes in measurement technique, and the resulting groundwater models are consistent with coincident loop soundings. Our result opens the field for novel sounding techniques of surface NMR signals that could have broad impact on near-surface groundwater investigations.
AB - Surface nuclear magnetic resonance (surface NMR) soundings are geophysical techniques that offer direct detection of groundwater. Ordinary surface NMR soundings are achieved with a wire loop that acts as both transmitter and receiver. We extend the capability of the technique by using a grounded electrical bipole as the measurement sensor. We provide the first successful measurements of surface NMR signals taken with a grounded electrode pair on a beach outside Perth, Western Australia. Simple changes to existing equations are sufficient to provide forward models for the changes in measurement technique, and the resulting groundwater models are consistent with coincident loop soundings. Our result opens the field for novel sounding techniques of surface NMR signals that could have broad impact on near-surface groundwater investigations.
KW - bipoles
KW - dipoles
KW - groundwater
KW - NMR
KW - surface nuclear magnetic resonance
UR - http://www.scopus.com/inward/record.url?scp=85071301764&partnerID=8YFLogxK
U2 - 10.1029/2019GL084342
DO - 10.1029/2019GL084342
M3 - Article
AN - SCOPUS:85071301764
VL - 46
SP - 9620
EP - 9627
JO - Geophysical research letters
JF - Geophysical research letters
SN - 0094-8276
IS - 16
ER -