Carbonate system & phosphate evolution during sea ice growth and decay
Carbonate system & phosphate evolution during sea ice growth and decay
Dissolved inorganic carbon (DIC) in sea ice is an important parameter to describe the ocean-sea ice-atmosphere CO2 flux. For a long time, sea ice was considered as a lid over seawater, preventing CO2 exchange between the atmosphere and ocean (Tison et al. 2002). Recent observations suggest that sea ice can be an active source or sink for CO2 (e.g., Miller et al. 2011; Nomura et al. 2010). However, the magnitude of these processes is not clear. The objective of this fieldwork is to follow the change of carbonate system as well as phosphate concentration during the sea ice growth and decay using our newly developed sea ice DIC sampling technique. Focus will be particularly on the transition between ice growth and ice melting, to understand the response of the carbonate system during this transition.
Fieldwork site: Sea Ice Environmental Research Facility (SERF), University of Manitoba, Winnipeg (Canada)
PI: F. Wang/S. Rysgaard
Project Lead: Y. Hu
Project Participants: Yubin Hu (CEOS), Feiyue Wang (CEOS), Soren Rysgaard (CEOS)