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Combined electric resistivity tomography and seismic refraction tomography in brackish water in saltsjön in Stockholm

Dahlin, T. LU and Wisen, R. LU (2018) 3rd Applied Shallow Marine Geophysics Conference
Abstract

Electrical resistivity tomography (ERT) combined with seismic refraction tomography (SRT) were performed in brackish water in Saltsjön in Stockholm. Results from a test survey with measurements along two lines are presented, whereas a larger survey is in progress at the moment of writing. Geological interpretation of the obtained models fits well with the documentation from drilling, and show that the method works well in practice. As for geophysical surveys on land, the advantage is that you get continuous models that can be linked to variation in soil depth, structures in the rock and hydrogeological conditions. ERT is also a possibility where it is inappropriate to blast or drill because of occurrence of cables, pipelines or... (More)

Electrical resistivity tomography (ERT) combined with seismic refraction tomography (SRT) were performed in brackish water in Saltsjön in Stockholm. Results from a test survey with measurements along two lines are presented, whereas a larger survey is in progress at the moment of writing. Geological interpretation of the obtained models fits well with the documentation from drilling, and show that the method works well in practice. As for geophysical surveys on land, the advantage is that you get continuous models that can be linked to variation in soil depth, structures in the rock and hydrogeological conditions. ERT is also a possibility where it is inappropriate to blast or drill because of occurrence of cables, pipelines or archaeological remains on the seabed. The electrical and seismic models from the combined survey complement each other and provide a more reliable overall picture of the variations in sediment depth and rock conditions.

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Please use this url to cite or link to this publication:
author
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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
3rd Applied Shallow Marine Geophysics Conference
publisher
European Association of Geoscientists and Engineers
conference name
3rd Applied Shallow Marine Geophysics Conference
conference location
Porto, Portugal
conference dates
2018-09-09 - 2018-09-13
external identifiers
  • scopus:85060522959
ISBN
9789462822641
DOI
10.3997/2214-4609.201802661
project
Integrated Use and Interpretation of Data from Geophysical and Non-Geophysical Methods for Site Investigation for Underground Construction
Geoelectrical Imaging for Site Investigation for Urban Underground Infrastructure
language
English
LU publication?
yes
id
889a6fae-60c0-4192-8400-f4a40df916a5
date added to LUP
2019-02-08 13:58:41
date last changed
2022-05-03 18:20:01
@inproceedings{889a6fae-60c0-4192-8400-f4a40df916a5,
  abstract     = {{<p>Electrical resistivity tomography (ERT) combined with seismic refraction tomography (SRT) were performed in brackish water in Saltsjön in Stockholm. Results from a test survey with measurements along two lines are presented, whereas a larger survey is in progress at the moment of writing. Geological interpretation of the obtained models fits well with the documentation from drilling, and show that the method works well in practice. As for geophysical surveys on land, the advantage is that you get continuous models that can be linked to variation in soil depth, structures in the rock and hydrogeological conditions. ERT is also a possibility where it is inappropriate to blast or drill because of occurrence of cables, pipelines or archaeological remains on the seabed. The electrical and seismic models from the combined survey complement each other and provide a more reliable overall picture of the variations in sediment depth and rock conditions.</p>}},
  author       = {{Dahlin, T. and Wisen, R.}},
  booktitle    = {{3rd Applied Shallow Marine Geophysics Conference}},
  isbn         = {{9789462822641}},
  language     = {{eng}},
  publisher    = {{European Association of Geoscientists and Engineers}},
  title        = {{Combined electric resistivity tomography and seismic refraction tomography in brackish water in saltsjön in Stockholm}},
  url          = {{http://dx.doi.org/10.3997/2214-4609.201802661}},
  doi          = {{10.3997/2214-4609.201802661}},
  year         = {{2018}},
}