About
This interdisciplinary project links expertise in aquatic biogeochemistry, hydrology and permafrost dynamics. SIWA aims to better understand the role of high latitude inland waters in the carbon cycle and how this varies across different climate zones. The project produced comparative studies of lake-stream networks across climate and permafrost gradients in western Siberia. The main objective was to quantify to what extent terrestrial carbon export is emitted to the atmosphere versus exported downstream in river networks along the gradients, and how these fluxes are related to differences in hydrological dynamics.
Major advancement in the understanding of Siberian inland waters in the carbon cycle at high latitudes, and their role in the permafrost carbon feedback. This results in improved accuracy of assessments of current and future carbon cycle and feedbacks on the climate system.
Project leader
I am Jan Karlsson (Professor) and my research focuses on impacts of climate change on the biogeochemistry and ecology of high latitude aquatic ecosystems. The role of inlands waters in Siberia is of particular interest to me because of the high density of inland waters, large permafrost carbon stocks and ongoing and predicted strong climate change.
Project consortium
Umeå University
Тomsk State University
University of Aberdeen
Swedish University of Agricultural Sciences
University of Toulouse
Umeå University, Sweden - project lead and coordination - is responsible for assessment of CO2 and CH4 emission from lakes and streams, and for providing new techniques for this work. It links C emission in the inland waters to the specific properties along the climate and permafrost gradient. Tomsk University, Russia, links the C dynamics observed to climate and permafrost dynamics. Swedish University of Agricultural Sciences, Sweden, is responsible for estimating the fluvial C export and the availability of this C in the aquatic network. University Toulouse, France, organizes the field campaigns, including sub-contracting local staff and arranging for transport and accommodation. It will be involved in estimating C emission from lakes and streams and lateral C export. University of Aberdeen, UK, is responsible for tracer studies to assess hydrological transit times and flow path ways of water and to link this to observed dynamics in permafrost and to carbon fluxes in running waters.
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