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Co-chairs : Jean-Carlos Montero-Serrano (Institut des sciences de la mer de Rimouski)

Alexandre Normandeau (Geological Survey of Canada (Atlantic) - Natural Resources Canada)

Audrey Limoges (University of New Brunswick)

 

The reduction in Arctic summer sea-ice cover observed over the last decades allows for new shipping routes, new fishing grounds and cruise tourism opportunities. These new opportunities come with risks in the unchartered regions of the Arctic, as demonstrated by ship groundings in recent years. The integration of multiple spatial datasets from the marine environment is therefore needed not only to provide important baseline environmental data, but also for a sustainable management of offshore resources in the Canadian Arctic. In addition, recent events in glaciated fjords such as the 2017 Greenland tsunami have shown the vulnerability of coastal communities to natural hazards. Thus, combining acoustic mapping of the seabed relief, surface sediment composition and subsurface sediment records in the Arctic and Subarctic regions can provide invaluable information to: improve navigational charts, understand the modern and past sedimentary processes affecting the seafloor, assess natural hazards, and document the evolution of coastal and marine ecosystems over time (e.g., sea-surface conditions and biological assemblages). In this context, this interdisciplinary session aims to bring together marine geoscientists from all horizons interested to explore the Arctic and Subarctic seafloor dynamics and its Late Quaternary evolution. Presentations by students at all level are strongly encouraged.