Two Boat Lake

SKB has carried out site investigations in the Two Boat Lake catchment (TBL) in the Kangerlussuaq area of western Greenland since 2010. It is a precipitation driven catchment, i.e. despite the close vicinity to the Greenland Ice sheet it is not connected to a glacial melt water system.

The presence of a through talik below the lake has been confirmed by drilling of a deep bedrock borehole which enables studies of talik processes such as exchange of water between the supra- and sub permafrost water system. Temperature, groundwater pressure measurements and water chemistry sampling have been performed in the borehole. Monitoring of the main water balance components as well as groundwater levels in the active layer have been going on since 2011. Soil sampling, geometrical information such as a Digital Elevation Model (DEM), sediment layer models and active layer depth models are available for further use.

There is also a GIS-database established for the site with maps of soil types, vegetation types and other spatial information of general interest for hydrological studies. A biogeochemical data set was published in 2017, this dataset can be used in order to support hydrological transport studies.

All data from the TBL site will be freely available and can be downloaded from the Pangaea data base, see Pangea links to the right.

Relevant publications from Two Boat Lake:

• Johansson, E., Berglund, S., Lindborg, T., Petrone, J., van As, D., Gustafsson, L.-G., Näslund, J.-O., and Laudon, H.: Hydrological and meteorological investigations in a periglacial lake catchment near Kangerlussuaq, west Greenland – presentation of a new multi-parameter data set, Earth Syst. Sci. Data, 7, 93-108, doi:10.5194/essd-7-93-2015, 2015.
• Johansson, E., Gustafsson, L.-G., Berglund, S., Lindborg, T., Selroos, J.-O., Claesson Liljedahl, L., and Destouni G. Data evaluation and numerical modeling of hydrological interactions between active layer, lake and talik in a permafrost catchment, Western Greenland. Journal of Hydrology 527 (2015) 688–703 .
• Rydberg J, Lindborg T, Sohlenius  G, Reuss N, Olsen J,  Laudon H.  The importance of eolian input on lake-sediment geochemical-composition in the dry proglacial landscape of western Greenland. Arctic, Antarctic, and Alpine Research
• Lindborg, T., Rydberg, J., Tröjbom, M., Berglund ,S., Johansson, E., Löfgren, A., , Saetre, P., Nordén, S.,  Sohlenius, G.,  Andersson, E.,  Petrone, J., Borgiel, M., Kautsky, U. and Laudon, H. Biogeochemical data from terrestrial and aquatic ecosystems in a periglacial catchment, West Greenland. Earth Syst. Sci. Data, 8, 439–459, 2016
• Petrone, J., Sohlenius, G., Johansson, E., Lindborg, T., Näslund, J-O., Strömgren, M. and Brydsten, L. Using ground-penetrating radar, topography and classification of vegetation to model the sediment and active layer thickness in a periglacial lake catchment, western Greenland. Earth Syst. Sci. Data, 8, 663–677, 2016
• Johansson, E . 2016. The influence of climate and permafrost on catchment hydrology. ISBN 978-91-7649-390-8
• Lindborg T., Rydberg, J., Andersson, E. , Löfgren A.,  Johansson E., Saetre P., Sohlenius G., Berglund S., Kautsky U. and Laudon, H. Terrestrial and aquatic sources, sinks and fluxes of carbon in a periglacial landscape.
• Lindborg, T., 2017. Climate-driven Landscape Development: Physical and Biogeochemical Long-term Processes in Temperate and Periglacial Environments. Doctoral thesis. Swedish University of Agricultural. Sciences978-91-7760-039-8