Personal profile
Research
My primary research interest is geoelectrical imaging and monitoring for engineering, groundwater and environmental applications, with main focus on direct current resistivity and time-domain induced polarisation (DCIP) tomography. I have pioneered and lead development of methodology and several prototype instrument generations for DCIP tomography. A prototype data acquisition system for electrical resistivity tomography (ERT) developed during the doctorate studies was later commercialised as the ABEM Lund Imaging System, which has been used worldwide, and the functionality subsequently integrated in the state-of-the-art instrument ABEM Terrameter LS[2]. I have been organising and teaching courses in engineering geology, hydrogeology, field investigation methodology and applied geophysics for universities and industry, and supervised master and doctorate level students, and postdocs. Research activities include cooperation with authorities and industry, and international collaboration that includes field work in Scandinavia, Cape Verde Islands, eastern and southern Africa, Central America, South America and the Arctic.
Subject classification (UKÄ)
- Earth Observation
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 1 No Poverty -
SDG 6 Clean Water and Sanitation -
SDG 8 Decent Work and Economic Growth -
SDG 11 Sustainable Cities and Communities -
SDG 12 Responsible Consumption and Production -
SDG 13 Climate Action -
SDG 14 Life Below Water
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Collaborations the last five years
Research output
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Assessing infiltration dynamics using integrated hydrogeophysical monitoring in a managed aquifer recharge pond
Prayag, A., Dahlin, T., Hägg, K., Rossi, M., Watlet, A., Rosberg, J.-E. & Martin, T., 2026 Mar, In: Journal of Hydrology. 672, 135338.Research output: Contribution to journal › Article › peer-review
Open Access -
Reconstruction of electrical resistivity tomography (ERT) data using different base measurements
Che, H., Hedblom, P. & Dahlin, T., 2026 Mar, In: Journal of Applied Geophysics. 249, 106199.Research output: Contribution to journal › Article › peer-review
Open Access -
Integration of seepage modelling and electrical resistivity monitoring data for the Älvkarleby test embankment dam, Sweden
Norooz, R., Dahlin, T. & Toromanovic, J., 2025 Oct, In: Engineering Geology. 357, 108311.Research output: Contribution to journal › Article › peer-review
Open Access -
Geophysical and hydrogeological monitoring of infiltration processes in an artificial recharge pond
Martin, T., Prayag, A., Hägg, K., Rossi, M., Hedblom, P., Abu Jaish, Y. & Dahlin, T., 2025 Sept, NSG 2025: 31st Meeting of Environmental and Engineering Geophysics. Naples, Italy: European Association of Geoscientists & EngineersResearch output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review
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3D DCIP techniques for detection of internal defects in the Älvkarleby test dam
Norooz, R. & Dahlin, T., 2025, 4th Conference on Geophysics for Infrastructure Planning, Monitoring and BIM 2025, Held at Near Surface Geoscience Conference and Exhibition, NSG 2025. European Association of Geoscientists and Engineers, (4th Conference on Geophysics for Infrastructure Planning, Monitoring and BIM 2025, Held at Near Surface Geoscience Conference and Exhibition, NSG 2025).Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review
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Geoelektriskt tomografisystem för grundvatten-och miljöundersökningar
Dahlin, T. (PI)
Carl Tryggers Stiftelse för Vetenskaplig Forskning
2025/01/01 → 2027/12/31
Project: Research
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Defect detection and seepage characterization for the Älvkarleby test embankment dam using resistivity-IP monitoring and 3D flow modelling
Dahlin, T. (PI) & Norooz, R. (Research student)
2024/10/01 → 2027/06/30
Project: Research
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Transparent embankment dam - Defect detection and seepage characterization in the Älvkarleby test embankment using 3D DCIP monitoring and hydraulic modelling
Dahlin, T. (PI) & Norooz, R. (Research student)
2024/05/27 → 2026/06/30
Project: Research
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Geophysical Mapping of Groundwater Properties for Construction of Transport Infrastructure – Part 2
Martin, T. (Researcher), Mendoza, A. (Researcher), Dahlin, T. (Researcher) & Ryckebusch, C. (Researcher)
Swedish Transport Administration
2024/04/01 → 2027/06/01
Project: Research
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Optimisation of geoelectrical tomography for underground construction applications - Step 2
Dahlin, T. (Researcher), Hedblom, P. (Researcher) & Che, H. (Researcher)
2023/01/01 → 2026/06/30
Project: Research
Activities
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Geophysical and hydrogeological monitoring of infiltration processes in an artificial recharge pond
Martin, T. (Presenter), Prayag, A. (Role not specified), Hägg, K. (Role not specified), Rossi, M. (Role not specified), Hedblom, P. (Role not specified), Abu Jaish, Y. (Role not specified) & Dahlin, T. (Role not specified)
2025 Sept 8Activity: Talk or presentation › Presentation
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Geoelectric tomography monitoring for protection of water resources and the environment (GEOELMON)
Dahlin, T. (Invited speaker)
2024 Nov 28Activity: Talk or presentation › Invited talk
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Mapping and protection of groundwater
Dahlin, T. (Organiser)
2023 Nov 14Activity: Participating in or organising an event › Organisation of workshop/ seminar/ course
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Mapping and protection of groundwater – experiences and ways ahead
Dahlin, T. (Presenter)
2023 Nov 14Activity: Talk or presentation › Public lecture/debate/seminar
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Nya metoden: Underjordskartorna ska rädda stora byggprojekt
Martin, T. (Interviewee) & Dahlin, T. (Interviewee)
2023 Feb 6Activity: Other › Media participation