Advancing the role and use of remote sensing for understanding the impact of sea ice on air-sea gas exchange in polar oceans

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The oceans around Antarctica are disproportionately important for the global uptake of anthropogenic carbon dioxide (CO2). Large (factor of three) uncertainties exist in our understanding of air-to-sea CO2 gas transfer in mixed ice regions. For example, sea-ice may alter transfer by suppressing ocean swell and modifying near surface turbulence. This project will use novel imaging approaches and drone techniques to quantify sea-ice extent coincident with measured gas fluxes. The data collected will help establish the importance of sea-ice for controlling air-to-sea CO2 fluxes.Main aim:Collect novel drone and ship-based measurements of sea-ice spatial extent in the Weddell Sea, East of the Antarctic Peninsula, and then determine how this ice extent, type and interactions are influencing air-to-sea CO2 fluxes.