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Time-lapse resistivity investigations for imaging saltwater transport in glaciofluvial deposits

Leroux, Virginie LU and Dahlin, Torleif LU (2006) In Environmental Geology 49(3). p.347-358
Abstract
Five intersecting resistivity sections have been measured in glaciofluvial deposits hosting an aquifer of regional importance situated along a heavy traffic highway in Sweden. The winter salt spreading has caused a regular salinity increase through the years. For imaging the transport of saltwater in the aquifer, the sections were measured exactly in the same location before and after winter, and interpreted using a time-lapse inverse procedure. Some auger drilling and RCPT data were available for correlation. After winter, the resistivity had generally decreased under the water table and increased above it. The decrease in resistivity in the saturated zone is interpreted as a plume of more saline groundwater created by de-icing salt from... (More)
Five intersecting resistivity sections have been measured in glaciofluvial deposits hosting an aquifer of regional importance situated along a heavy traffic highway in Sweden. The winter salt spreading has caused a regular salinity increase through the years. For imaging the transport of saltwater in the aquifer, the sections were measured exactly in the same location before and after winter, and interpreted using a time-lapse inverse procedure. Some auger drilling and RCPT data were available for correlation. After winter, the resistivity had generally decreased under the water table and increased above it. The decrease in resistivity in the saturated zone is interpreted as a plume of more saline groundwater created by de-icing salt from the road. The increase in the upper layer can be explained by changes in temperature and soil moisture. The study shows that time-lapse resistivity investigations has potential for imaging hydraulic pathways in complex hydrogeological environments. (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
monitoring, groundwater, glaciofluvial sediments, resistivity, salinization, seasonal variations
in
Environmental Geology
volume
49
issue
3
pages
347 - 358
publisher
Springer
external identifiers
  • wos:000234199600001
  • scopus:29344436533
ISSN
0943-0105
DOI
10.1007/s00254-005-0070-7
language
English
LU publication?
yes
id
7d353680-543b-4886-8ce7-00183e4f72d9 (old id 421608)
date added to LUP
2016-04-01 15:23:50
date last changed
2021-09-15 05:37:24
@article{7d353680-543b-4886-8ce7-00183e4f72d9,
  abstract     = {Five intersecting resistivity sections have been measured in glaciofluvial deposits hosting an aquifer of regional importance situated along a heavy traffic highway in Sweden. The winter salt spreading has caused a regular salinity increase through the years. For imaging the transport of saltwater in the aquifer, the sections were measured exactly in the same location before and after winter, and interpreted using a time-lapse inverse procedure. Some auger drilling and RCPT data were available for correlation. After winter, the resistivity had generally decreased under the water table and increased above it. The decrease in resistivity in the saturated zone is interpreted as a plume of more saline groundwater created by de-icing salt from the road. The increase in the upper layer can be explained by changes in temperature and soil moisture. The study shows that time-lapse resistivity investigations has potential for imaging hydraulic pathways in complex hydrogeological environments.},
  author       = {Leroux, Virginie and Dahlin, Torleif},
  issn         = {0943-0105},
  language     = {eng},
  number       = {3},
  pages        = {347--358},
  publisher    = {Springer},
  series       = {Environmental Geology},
  title        = {Time-lapse resistivity investigations for imaging saltwater transport in glaciofluvial deposits},
  url          = {https://lup.lub.lu.se/search/files/4383324/4934628.pdf},
  doi          = {10.1007/s00254-005-0070-7},
  volume       = {49},
  year         = {2006},
}