Coastal Hydrogeology - Saltwater Intrusion
We are launching several projects on saltwater intrusion focused on small-island aquifers. We are examining both impacts to coastal communities as well as island ecosystems. Much of this work will be focused on Sable Island, where fresh groundwater-sourced ponds are critical for the island's unique ecosystem.
Coastal Hydrogeology - Groundwater-Borne Coastal Pollution
Coastal aquifers can provide a conduit for anthropogenic pollution of coastal waters. This type of discharge is known as submarine groundwater discharge, and is receiving increased attention in the international literature. We have projects launched in Mabou Harbour Cape Breton and Basin Head, Prince Edward Island. These examine sources, pathways, and ecosystem impacts of coastal nutrients and bacteria.
Groundwater and River Temperature
We study temperature patterns in aquifers, rivers, and coastal zones to better understand thermal drivers of ecosystem dynamics and sensitivities to climate change. We have also developed tools and algorithms for quantifying vertical fluid and heat exchanges between surface water and groundwater using temperature.
Cold Regions Hydrology and Hydrogeology
Arctic and subarctic hydrologic systems are strongly controlled by the distribution of perennially frozen ground (permafrost). Permafrost is thawing with climate warming, causing hydrologic regime shifts and altering the distribution of surface and subsurface water. Understanding how these systems will continue to change is critical for northern water security. Most of our work along this theme has been with permafrost groundwater (cryohydrogeology) models.