Permalink :  http://hdl.handle.net/2115/91847

JaLCDOI :  10.14943/lowtemsci.82.45

KEYWORDS : 海氷; ブライン; 二酸化炭素; 気体交換; Sea ice; brine; carbon dioxide; gas exchange

Sea-ice has not been considered in estimations of biogeochemical cycles, especially in gas exchange, in icecovered seas because of the assumption that sea-ice acts as a barrier for atmosphere—ocean exchange. However, recent works have shown that sea ice cover play an active role in the carbon dioxide (CO2) exchange between the ocean and atmosphere. This paper describes the relationship between the physical properties of sea ice and gas exchange, laboratory experiments and field observation efforts, and progress in our understanding for sea ice—atmosphere CO2 exchange. We also introduce our recent efforts to evaluate the carbon budget of sea ice areas on a global scale by integrating data and to establish methods for CO2 exchange with the atmosphere in sea ice areas.

FULL TEXT :  PDF