Details
| Original language | English |
|---|---|
| Title of host publication | 1st Conference on Hydrogeophysics |
| Subtitle of host publication | Contribution to Exploration and Management of Groundwater, Land-Use and Natural Hazards under a Changing Climate, Held at Near Surface Geoscience Conference and Exhibition 2021, NSG 2021 |
| Publisher | EAGE Publishing BV |
| ISBN (electronic) | 9789462823877 |
| Publication status | Published - Aug 2021 |
| Externally published | Yes |
| Event | 1st Conference on Hydrogeophysics: Contribution to Exploration and Management of Groundwater, Land-Use and Natural Hazards under a Changing Climate, Held at Near Surface Geoscience Conference and Exhibition 2021, NSG 2021 - Bordeaux, Virtual, France Duration: 29 Aug 2021 → 2 Sept 2021 |
Publication series
| Name | NSG2021 1st Conference on Hydrogeophysics |
|---|
Abstract
Electromagnetic measurements can provide valuable background information for many hydrogeological questions such as clay occurrence or saltwater intrusion. By using magnetic field sensors on a drone, one can efficiently cover large areas. A grounded electric dipole with a high voltage source generates an alternating current over a range of frequencies (32 Hz to 5 kHz). We show first results of a drone based semi-airborne setting on a site adjacent to the North Sea coast, where saltwater is intruding into a freshwater aquifer. We show the way from processing the raw magnetic data to subsurface models using a 500 m long line. Comparison to ground ERT and helicopter EM data shows the applicability of the methodology.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Earth-Surface Processes
- Earth and Planetary Sciences(all)
- Geophysics
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
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1st Conference on Hydrogeophysics: Contribution to Exploration and Management of Groundwater, Land-Use and Natural Hazards under a Changing Climate, Held at Near Surface Geoscience Conference and Exhibition 2021, NSG 2021. EAGE Publishing BV, 2021. (NSG2021 1st Conference on Hydrogeophysics).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - A new drone-based semi-airborne electromagnetic system for mapping saltwater-freshwater interfaces
AU - Günther, T.
AU - Ronczka, M.
AU - Rochlitz, R.
AU - Kotowski, P.
AU - Müller-Petke, M.
N1 - Publisher Copyright: © 1st Conference on Hydrogeophysics: Contribution to Exploration and Management of Groundwater, Land-Use and Natural Hazards under a Changing Climate, Held at Near Surface Geoscience Conference and Exhibition 2021, NSG 2021.
PY - 2021/8
Y1 - 2021/8
N2 - Electromagnetic measurements can provide valuable background information for many hydrogeological questions such as clay occurrence or saltwater intrusion. By using magnetic field sensors on a drone, one can efficiently cover large areas. A grounded electric dipole with a high voltage source generates an alternating current over a range of frequencies (32 Hz to 5 kHz). We show first results of a drone based semi-airborne setting on a site adjacent to the North Sea coast, where saltwater is intruding into a freshwater aquifer. We show the way from processing the raw magnetic data to subsurface models using a 500 m long line. Comparison to ground ERT and helicopter EM data shows the applicability of the methodology.
AB - Electromagnetic measurements can provide valuable background information for many hydrogeological questions such as clay occurrence or saltwater intrusion. By using magnetic field sensors on a drone, one can efficiently cover large areas. A grounded electric dipole with a high voltage source generates an alternating current over a range of frequencies (32 Hz to 5 kHz). We show first results of a drone based semi-airborne setting on a site adjacent to the North Sea coast, where saltwater is intruding into a freshwater aquifer. We show the way from processing the raw magnetic data to subsurface models using a 500 m long line. Comparison to ground ERT and helicopter EM data shows the applicability of the methodology.
UR - http://www.scopus.com/inward/record.url?scp=85125204523&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.202120214
DO - 10.3997/2214-4609.202120214
M3 - Conference contribution
AN - SCOPUS:85125204523
T3 - NSG2021 1st Conference on Hydrogeophysics
BT - 1st Conference on Hydrogeophysics
PB - EAGE Publishing BV
T2 - 1st Conference on Hydrogeophysics: Contribution to Exploration and Management of Groundwater, Land-Use and Natural Hazards under a Changing Climate, Held at Near Surface Geoscience Conference and Exhibition 2021, NSG 2021
Y2 - 29 August 2021 through 2 September 2021
ER -