Audrey Veillette presents: Stabilisation post-dégradation et modification à long terme du pergélisol

February 19, 2016 in Conference, post by Audrey Veillette


Me and my poster at the Center for Northern Studies annual colloquium. Photo credit : Daniel Fortier

It is at the annual colloquium of the Center for Northern Studies (CNS), that took place in Trois-Rivières, that I presented for the first time the preliminary results of my masters’ research to a scientific public! My poster focuses on the morphological traits of a stabilized permafrost following perturbation by thermo erosion. On Bylot Island, many thermo erosion gullies incise the studied valley; the gullies remain in the landscape once stabilized, after a few decades. This stabilization generates new characteristics for surface permafrost; hence it is important to understand better the new state of permafrost. Preliminary results indicate an increased presence of ice if the upper permafrost, which modifies the quantity of latent heat in the soil, having effects on its thermal stability! For the next few weeks, I will be working in the lab to quantify this latent heat.

During the colloquim, I also had the chance to discuss about thermo erosion with the passionate François Costard, as well as learn about a variety of ongoing Nordic research work. Thanks to the CNS 🙂




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