Please note that this session was withdrawn and is no longer available in the respective programme. This withdrawal might have been the result of a merge with another session.

CR4.3
Surface and subsurface hydrology and element transport in permafrost areas
Co-organized as HS2.1.5
Convener: Ylva Sjöberg | Co-conveners: Jeffrey McKenzie, Johanna Scheidegger

Permafrost, which underlies 25% of the non-glaciated northern hemisphere landmass, profoundly influences subsurface hydrology, the partitioning of surface and subsurface water, and element transport processes. With ongoing climate change, permafrost is thawing, leading to rapid changes in the cold region (e.g. Arctic, high mountains, paleopermafrost regions, etc.) hydrologic systems, including increased connectivity between subsurface and surface water systems. As these hydrologic systems change, there are concomitant changes in biogeochemical cycles and element transport, such as nutrients, contaminants and solutes.
For this session, we welcome studies that integrate understanding of the basic processes controlling surface and subsurface hydrology, biogeochemistry, and elemental transport in permafrost regions. Further, we encourage research that investigate the impact of climate change on these systems. Research may be data-driven, field-based, and/or numerical modeling, and focus on hillslope to regional scales over time-scales ranging from seasonal to millennial. We particularly welcome contributions that combine modeling with field observations of hydrology, hydrogeology, or elemental transport, in permafrost regions.