We aim to understand the response of aquatic environments to ongoing environmental changes. Specifically, we study coupled biogeochemical cycles of i) major elements such as oxygen, iron and sulfur, ii) nutrient such as phosphorus, and iii) trace elements such as arsenic, selenium and vanadium, in the aquatic environment. We develop new approaches for the identification and modelling of key processes that control freshwater quality. More specifically, our research touches on:
- Fate and transport of metals and metalloids
- Lake response to environmental changes
- Reactive-transport and water quality modelling
Current projects, funded by Sentinel North, Natural Sciences and Engineering Research Council or Canada, and The Research Council of Norway, broadly focus on the changing dynamics of lakes in boreal and arctic landscapes in response to land use and climate.
We use a multi-disciplinary and multi-scale approach. We collaborate with engineers, biologists, hydrologists and computer scientists - among others - to carry out our projects. We acquire real-time data and environmental samples in the field, conduct laboratory experiments and develop numerical models that capture processes from the molecular to the lake scale.
We carry out research across the northern landscape, from the Northwest Territories to Scandinavia.
Our research starts in the field. We sample aquatic environments with focus on Nunavik and Nunavut, using the network of stations from the Center for Northern Studies as entry points. We access our field sites via boat or helicopter, depending on the landscape. We also increasingly carry out coastal work, onboard the icebreaker Amundsen. You can learn more about our field activities on Instagram and Facebook.
Équipe du professeur Raoul Couture. Lacs et #chimie de l'eau en milieu #boreal et #arctique. Chaire @sentinellenord en géochimie aquatique à @ulaval.