A Cold Case - Reducing the uncertainty in permafrost models and observations
Jelte de Bruin, PostDoc at Wageningen University
This seminar is part of the Tuesday Seminar Series organized by the Center for Hydrogeology and Geothermics (CHYN) at the University of Neuchâtel. We are pleased to welcome Dr. Jelte de Bruin from Wageningen University, who will speak about uncertainty reduction in permafrost models and observations.
AbstractAs the global air temperatures rise, permafrost areas are subjected to higher temperatures, causing the active layer depth to increase. The deepening of the active layer reactivates groundwater transport processes, responsible for transporting solutes such as dissolved carbon to discharge streams and to the surface. To make predictions of these thawing processes e.g. thawing speed, we need numerical models with accurate data on the active layer thermal properties. During the science café, work will be presented on the combination of freeze-thaw column experiments to parameterize numerical heat transport models to simulate permafrost dynamics. Furthermore, results are shown how timelapse-ERT observations are used to track a seasonal permafrost freeze-thaw front in an experimental setup.
Date
Le mardi 1 avril 2025
Horaire
16:15 - 17:00
Lieu
Faculté des sciences
Rue Emile-Argand 11
2000 Neuchâtel
Rue Emile-Argand 11
2000 Neuchâtel
Salle
E301-304
Intervenant-e-s
Jelte de Bruin
Organisation
Wageningen University