Combined electric resistivity tomography and seismic refraction tomography in brackish water in saltsjön in Stockholm
(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.
(Less)
- author
- Dahlin, T. LU and Wisen, R. LU
- organization
- publishing date
- 2018
- 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}}, }