Seminar by Clarissa Willmes from the University of Oslo (UiO):
Improving Simulations of the Local Ground Thermal Regime by Data Assimilation of Fractional Snow-Covered Area in CryoGrid
Abstract: Permafrost landscapes such as thermokarst and high-Arctic permafrost terrain typically show large spatial variability on scales of 1-100 m. Local conditions and processes like snow-redistribution strongly modify the ground thermal state on these small spatial scales. Using stand-alone snow models, it has been shown that the timing of snowmelt and the snow depth can be well constrained with the assimilation of fractional snow-covered area. We assimilate fractional snow-covered area with the landsurface model CryoGrid to allow for interaction between the snowpack and the underlying permafrost ground. The assimilation scheme is validated for a fieldsite in Ny-Ålesund, Svalbard.
The talk is in Aud 1 in the Geology Building. It is also possible to follow at Zoom.
Videolink to the lecture will be sent to the e-mail list alle@geo and geohyd-info@geo. If you want to subscribe to the geohyd-info@geo list send an email to Anita.
About the seminar
This seminar is offered by the Section for Geography and Hydrology, Dept. of Geosciences, University of Oslo. The GeoHyd seminars are announced as lunch seminars so bring your lunch if you want to.
The seminars are open for everyone interested, and especially students are welcome.
The Lunch Seminar Team
– Yeliz and Thomas