My research focuses  on spatial and temporal scaling of hydrodynamical and biogeochemical processes-  with emphasis on the riparian zone. To achieve my research objectives, I combine field measurements with GIS-based landscape analysis and hydrological modeling.

Don’t hesitate to contact me for copies of my publications.


At times when I’m away-from-keyboard&work I enjoy rowing, reading and skiing among other things.


Featured Contents



^^please enable java-script to be able to view the above slide-show^^


Peer-reviewed papers

Ledesma, J. L. J., Grabs, T., Futter, M. N., Bishop, K. H., Laudon, H., and Köhler, S. J.: Riparian zone controls on base cation concentrations in boreal streams, Biogeosciences Discuss., 10, 739-785, doi:10.5194/bgd-10-739-2013 (pdf)

Wallin, M.B., Grabs, T., Buffam, I., Laudon, H., Ã…gren, A., Öquist, M.G., Bishop, K. (2012) Evasion of CO2 from streams – The dominant component of the carbon export through the aquatic conduit in a boreal landscape. Global Change Biology. doi: 10.1111/gcb.12083

Grabs, T., Bishop, K., Laudon, H., Lyon, S. W., and Seibert, J. (2012) 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, doi:10.5194/bg-9-3901-2012, 9, 3031–3069 (pdf)

Lyon, S. W., Grabs, T., Laudon, H., Bishop, K. and Seibert, J.  (2011), Variability of groundwater levels and total organic carbon in the riparian zone of a boreal catchment, J. Geophys. Res., 116, G01020, doi:10.1029/2010JG001452.

Nathanson, M., Kean, J. W., Grabs, T. J., Seibert, J., Laudon, H. & Lyon, S. W. (2012), Modelling rating curves using remotely sensed LiDAR data, Hydrol. Process., DOI: 10.1002/hyp.9225

Laudon H., Berggren M., Ågren A., Buffam I., Bishop K., Grabs T., Jansson M., Köhler S. (2011), Patterns and dynamics of dissolved organic carbon (DOC) in boreal streams: The role of processes, connectivity and scaling, Ecosystems, Ecosystems, Volume: 14, Issue: 6, Publisher: Springer New York, Pages: 880-893.

Lyon S.W., Grabs T., Laudon H., Bishop K.H. and Seibert J. (2010), Variability of groundwater levels and total organic carbon in the riparian zone of a boreal catchment, J. Geophys. Res., 116, G01020, doi:10.1029/2010JG001452.

Grabs T., Jencso K. G., McGlynn B. L., and Seibert J. (2010), Calculating terrain indices along streams – a new method for separating stream sides, Water Resources Research, 46, W12536, doi:10.1029/2010WR009296. (email me for copy)

Grabs T., Seibert J., Bishop K., and Laudon H. (2009), Modeling spatial patterns of saturated areas: A comparison of the topographic wetness index and a dynamic distributed model, Journal of Hydrology, 373(1-2), 15-23. (pdf)

Seibert, J., Grabs T., Köhler S., Laudon H., Winterdahl M., and Bishop K. (2009), Linking soil and stream-water chemistry based on a riparian flow-concentration integration model, Hydrological Earth System Sciences, 13, 2287-2297. (pdf)

Sørensen, R., Ring E., Meili M., Högbom L., Seibert J., Grabs T., Laudon H., and Bishop K. (2009), Forest Harvest Increases Runoff Most during Low Flows in Two Boreal Streams, AMBIO: A Journal of the Human Environment, 38(7), 357-363. (pdf)

Scientific reports

Grabs, T, Seibert, J. and Laudon, H. (2007). Distributed runoff modeling; Wetland runoff and its importance for spring-flood predictions, Elforsk rapport, 59 pp.