Research
My research focuses on spatial & temporal scaling of hydrodynamical and biogeochemical processes – with emphasis on the interface between land and water bodies. My principal research objective is to improve the understanding of the linkage between surface water quality & the interplay of shallow groundwater flow pathways and chemical buffering within the near-stream zones. To achieve my research objectives, I combine field measurements with GIS-based landscape analysis and hydrological modeling.
Publications
Peer-reviewed papers
2026. Jonsson, E., Sušnik, J., Masia, S., Todorović, A., Francisco, A., Grabs, T., Teutschbein, C. Dynamic mode decomposition for water-energy-food nexus modelling: Data-driven predictions of policy impacts. Journal of Environmental Management 398. https://doi.org/10.1016/j.jenvman.2025.128419
2025. Kreibich, H., Sivapalan, M., AghaKouchak, A., Addor, N., Aksoy, H., Arheimer, B., Arnbjerg-Nielsen, K., Vail-Castro, C., Cudennec, C., Madruga de Brito, M., Di Baldassarre, G., Finger, D. C., Fowler, K., Knoben, W., Krueger, T., Liu, J., Macdonald, E., McMillan, H., Mendiondo, E. M., … Blöschl, G. Panta Rhei: A decade of progress in research on change in hydrology and society. Hydrological Sciences Journal 70. https://doi.org/10.1080/02626667.2025.2469762
2025. Stenfors, E., Blicharska, M., Grabs, T., Teutschbein, C. Multi-sectoral and systemic drought risk in forested cold climates: Stakeholder-informed vulnerability factors from Sweden. Hydrology and Earth System Sciences 29. https://doi.org/10.5194/hess-29-3809-2025
2025. Stenfors, E., Blicharska, M., Grabs, T., Teutschbein, C. Sectoral vulnerability to drought: Exploring the role of blue and green water dependency in mid- and high-latitude regions. Natural Hazards and Earth System Sciences 25. https://doi.org/10.5194/nhess-25-3381-2025
2025. Teutschbein, C., Grabs, T., Giese, M., Todorović, A., Barthel, R. Drought propagation in high-latitude catchments: Insights from a 60-year analysis using standardized indices. Natural Hazards and Earth System Sciences 25. https://doi.org/10.5194/nhess-25-2541-2025
2024. Ehnvall, B., Ratcliffe, J.L., Nilsson, M.B., Öquist, M.G., Sponseller, R.A., Grabs, T. Topography and Time Shape Mire Morphometry and Large-Scale Mire Distribution Patterns in the Northern Boreal Landscape. Journal of Geophysical Research: Earth Surface 129. https://doi.org/10.1029/2023JF007324
2024. Bishop, K., Ameli, A., Grabs, T., Laudon, H., Amvrosiadi, N., Kolbe, T., Seibert, J., van Meerveld, I. Identifying Subsurface Connectivity From Observations: Experimentation With Equifinality Defines Both Challenges and Pathways to Progress. Hydrological Processes 38. https://doi.org/10.1002/hyp.15324
2024. Jonsson, E., Todorović, A., Blicharska, M., Francisco, A., Grabs, T., Sušnik, J., Teutschbein, C. An introduction to data-driven modelling of the water-energy-food-ecosystem nexus. Environmental Modelling and Software 181. https://doi.org/10.1016/j.envsoft.2024.106182
2024. Stenfors, E., Blicharska, M., Grabs, T., Teutschbein, C. Droughts in forested ecoregions in cold and continental climates: A review of vulnerability concepts and factors in socio-hydrological systems. Wiley Interdisciplinary Reviews: Water 11. https://doi.org/10.1002/wat2.1692
2024. Todorović, A., Grabs, T., Teutschbein, C.. Improving performance of bucket-type hydrological models in high latitudes with multi-model combination methods: Can we wring water from a stone? Journal of Hydrology 632. https://doi.org/10.1016/j.jhydrol.2024.130829
2023. Teutschbein, C., Albrecht, F., Blicharska, M., Tootoonchi, F., Stenfors, E., Grabs, T. Drought hazards and stakeholder perception: Unraveling the interlinkages between drought severity, perceived impacts, preparedness, and management. Ambio 52, 1262–1281. https://doi.org/10.1007/s13280-023-01849-w
2023. Ehnvall, B., Ratcliffe, J.L., Bohlin, E., Nilsson, M.B., Öquist, M.G., Sponseller, R.A., Grabs, T. Landscape constraints on mire lateral expansion. Quaternary Science Reviews 302. https://doi.org/10.1016/j.quascirev.2023.107961
2023. Tootoonchi, F., Todorović, A., Grabs, T., Teutschbein, C.. Uni- and multivariate bias adjustment of climate model simulations in Nordic catchments: Effects on hydrological signatures relevant for water resources management in a changing climate. Journal of Hydrology 623. https://doi.org/10.1016/j.jhydrol.2023.129807
2023. Teutschbein, C., Jonsson, E., Todorović, A., Tootoonchi, F., Stenfors, E., Grabs, T. Future drought propagation through the water-energy-food-ecosystem nexus – A Nordic perspective. Journal of Hydrology 617. https://doi.org/10.1016/j.jhydrol.2022.128963
2022. Teutschbein, C., Quesada Montano, B., Todorović, A., Grabs, T. Streamflow droughts in Sweden: Spatiotemporal patterns emerging from six decades of observations. Journal of Hydrology: Regional Studies 42. https://doi.org/10.1016/j.ejrh.2022.101171
2022. Todorović, A., Grabs, T., Teutschbein, C.. Advancing traditional strategies for testing hydrological model fitness in a changing climate. Hydrological Sciences Journal 67, 1790–1811. https://doi.org/10.1080/ 02626667.2022.2104646
2022. Tootoonchi, F., Haerter, J.O., Todorović, A., Räty, O., Grabs, T., Teutschbein, C.. Uni- and multivariate bias adjustment methods in Nordic catchments: Complexity and performance in a changing climate. Science of the Total Environment 853. https://doi.org/10.1016/j.scitotenv.2022.158615
2022. Tootoonchi, F., Sadegh, M., Haerter, J.O., Räty, O., Grabs, T., Teutschbein, C.. Copulas for hydroclimatic analysis: A practice-oriented overview. Wiley Interdisciplinary Reviews: Water 9. https://doi.org/10.1002/wat2.1579
2020. Reynolds, J.E., Halldin, S., Seibert, J., Xu, C.Y., Grabs, T. Robustness of flood-model calibration using single and multiple events. Hydrological Sciences Journal 65, 842–853. https://doi.org/10.1080/02626667.2019.1609682
2020. Reynolds, J.E., Halldin, S., Seibert, J., Xu, C.Y., Grabs, T. Flood prediction using parameters calibrated on limited discharge data and uncertain rainfall scenarios. Hydrological Sciences Journal 65, 1512–1524. https://doi.org/10.1080/02626667.2020.1747619
2019. Karlsen, R.H., Bishop, K., Grabs, T., Ottosson-Löfvenius, M., Laudon, H., Seibert, J. The role of landscape properties, storage and evapotranspiration on variability in streamflow recessions in a boreal catchment. Journal of Hydrology 570, 315–328. https://doi.org/10.1016/j.jhydrol.2018.12.065
2018. Ledesma, J.L.J., Futter, M.N., Blackburn, M., Lidman, F., Grabs, T., Sponseller, R.A., Laudon, H., Bishop, K.H., Köhler, S.J. Towards an Improved Conceptualization of Riparian Zones in Boreal Forest Headwaters. Ecosystems 21, 297–315. https://doi.org/10.1007/s10021-017-0149-5
2018. Ledesma, J.L.J., Kothawala, D.N., Bastviken, P., Maehder, S., Grabs, T., Futter, M.N. Stream Dissolved Organic Matter Composition Reflects the Riparian Zone, Not Upslope Soils in Boreal Forest Headwaters. Water Resources Research 54, 3896–3912. https://doi.org/10.1029/2017WR021793
2018. Wallin, M.B., Campeau, A., Audet, J., Bastviken, D., Bishop, K., Kokic, J., Laudon, H., Lundin, E., Löfgren, S., Natchimuthu, S., Sobek, S., Teutschbein, C., Weyhenmeyer, G.A., Grabs, T.. Carbon dioxide and methane emissions of Swedish low-order streams—a national estimate and lessons learnt from more than a decade of observations. Limnology And Oceanography Letters 3, 156–167. https://doi.org/10.1002/lol2.10061
2018. Teutschbein, C., Grabs, T., Laudon, H., Karlsen, R.H., Bishop, K., 2018. Simulating streamflow in ungauged basins under a changing climate: The importance of landscape characteristics. Journal of Hydrology 561, 160–178. https://doi.org/10.1016/j.jhydrol.2018.03.060
2017. Amvrosiadi, N., Seibert, J., Grabs, T., Bishop, K. Water storage dynamics in a till hillslope: the foundation for modeling flows and turnover times. Hydrological Processes 31, 4–14. https://doi.org/10.1002/hyp.11046
2017. Mayotte, J.-M., Grabs, T., Sutliff-Johansson, S., Bishop, K. The effects of ionic strength and organic matter on virus inactivation at low temperatures: general likelihood uncertainty estimation (GLUE) as an alternative to least-squares parameter optimization for the fitting of virus inactivation models. Hydrogeology Journal 25, 1063–1076. https://doi.org/10.1007/s10040-017-1559-3
2017. Teutschbein, C., Sponseller, R.A., Grabs, T., Blackburn, M., Boyer, E.W., Hytteborn, J.K., Bishop, K. Future Riverine Inorganic Nitrogen Load to the Baltic Sea From Sweden: An Ensemble Approach to Assessing Climate Change Effects. Global Biogeochemical Cycles 31, 1674–1701. https://doi.org/10.1002/2016GB005598
2016. Ameli, A.A., Amvrosiadi, N., Grabs, T., Laudon, H., Creed, I.F., McDonnell, J.J., Bishop, K. Hillslope permeability architecture controls on subsurface transit time distribution and flow paths. Journal of Hydrology 543, 17–30. https://doi.org/10.1016/j.jhydrol.2016.04.071
2016. Karlsen, R.H., Grabs, T., Bishop, K., Buffam, I., Laudon, H., Seibert, J. Landscape controls on spatiotemporal discharge variability in a boreal catchment. Water Resources Research 52, 6541–6556. https://doi.org/10.1002/2016WR019186
2016. Karlsen, R.H., Seibert, J., Grabs, T., Laudon, H., Blomkvist, P., Bishop, K. The assumption of uniform specific discharge: unsafe at any time? Hydrological Processes 30, 3978–3988. https://doi.org/10.1002/hyp.10877
2015. Ledesma, J.L.J., Grabs, T., Bishop, K.H., Schiff, S.L., Köhler, S.J. Potential for long-term transfer of dissolved organic carbon from riparian zones to streams in boreal catchments. Global Change Biology 21, 2963–2979. https://doi.org/10.1111/gcb.12872
2015. Teutschbein, C., Grabs, T., Karlsen, R.H., Laudon, H., Bishop, K.. Hydrological response to changing climate conditions: Spatial streamflow variability in the boreal region. Water Resources Research 51, 9425–9446. https://doi.org/10.1002/2015WR017337
2013. Wallin, M.B., Grabs, T., Buffam, I., Laudon, H., Ågren, A., Öquist, M.G., Bishop, K. Evasion of CO2 from streams – The dominant component of the carbon export through the aquatic conduit in a boreal landscape. Global Change Biology 19, 785–797. https://doi.org/10.1111/gcb.12083
2013. Ledesma, J.L.J., Grabs, T., Futter, M.N., Bishop, K.H., Laudon, H., Köhler, S.J. Riparian zone control on base cation concentration in boreal streams. Biogeosciences 10, 3849–3868. https://doi.org/10.5194/bg-10-3849-2013
2013. Schelker, J., Grabs, T., Bishop, K., Laudon, H.. Drivers of increased organic carbon concentrations in stream water following forest disturbance: Separating effects of changes in flow pathways and soil warming. Journal of Geophysical Research: Biogeosciences 118, 1814–1827. https://doi.org/10.1002/2013JG002309
2012. Grabs, T., Bishop, K., Laudon, H., Lyon, S.W., Seibert, J. Riparian zone hydrology and soil water total organic carbon (TOC): Implications for spatial variability and upscaling of lateral riparian TOC exports. Biogeosciences 9, 3901–3916. https://doi.org/10.5194/bg-9-3901-2012
2012. Lyon, S.W., Nathanson, M., Spans, A., Grabs, T., Laudon, H., Temnerud, J., Bishop, K.H., Seibert, J. Specific discharge variability in a boreal landscape. Water Resources Research 48. https://doi.org/10.1029/2011WR011073
2012. Nathanson, M., Kean, J.W., Grabs, T.J., Seibert, J., Laudon, H., Lyon, S.W. Modelling rating curves using remotely sensed LiDAR data. Hydrological Processes 26, 1427–1434. https://doi.org/10.1002/hyp.9225
2011. Laudon, H., Berggren, M., Ågren, A., Buffam, I., Bishop, K., Grabs, T., Jansson, M., Köhler, S. Patterns and Dynamics of Dissolved Organic Carbon (DOC) in Boreal Streams: The Role of Processes, Connectivity, and Scaling. Ecosystems 14, 880–893. https://doi.org/10.1007/s10021-011-9452-8
2011. Lyon, S.W., Grabs, T., Laudon, H., Bishop, K.H., Seibert, J. Variability of groundwater levels and total organic carbon in the riparian zone of a boreal catchment. Journal of Geophysical Research: Biogeosciences 116. https://doi.org/10.1029/2010JG001452
2010. Grabs, T.J., Jencso, K.G., McGlynn, B.L., Seibert, J. Calculating terrain indices along streams: A new method for separating stream sides. Water Resources Research 46. https://doi.org/10.1029/2010WR009296
2009. Grabs, T., Seibert, J., Bishop, K., Laudon, H. Modeling spatial patterns of saturated areas: A comparison of the topographic wetness index and a dynamic distributed model. Journal of Hydrology 373, 15–23. https://doi.org/10.1016/j.jhydrol.2009.03.031
2009. Seibert, J., Grabs, T., Köhler, S., Laudon, H., Winterdahl, M., Bishop, K. Linking soil- and stream-water chemistry based on a Riparian Flow-Concentration Integration Model. Hydrology and Earth System Sciences 13, 2287–2297. https://doi.org/10.5194/hess-13-2287-2009
2009. Sørensen, R., Ring, E., Meili, M., Högbom, L., Seibert, J., Grabs, T., Laudon, H., Bishop, K.. Forest harvest increases runoff most during low flows in two boreal streams. Ambio 38, 357–363. https://doi.org/10.1579/0044-7447-38.7.357
Scientific reports
2007. Grabs, T, Seibert, J. and Laudon, H. Distributed runoff modeling; Wetland runoff and its importance for spring-flood predictions, Elforsk rapport, 59 pp.
2019. Svensk Kärnbränslehantering AB, Stockholm. Biosphere synthesis for the safety evaluation SE-SFL (Technical report No. TR-19-05) (p. 278). Stockholm.