北太平洋亜寒帯海域でのCO2海洋隔離によるCO2濃度変化予測

概要

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Among countermeasures against the global warming, attention has been given to the so-called ocean sequestration technique of carbon dioxide, in which CO2 produced and accumulated in plants is introduced into the middle or deeper layers of the ocean, in order to prevent further increase of atmospheric CO2. The subarctic region of the northern Pacific Ocean has recent1y been recognized as a sea area which has the potential to absorb CO2 although oceanographical data of this region are comparatively scarce except for sea areas adjacent to Japan, the Aleutian Islands and the Canadian coast. As this sea region is thought to play decisive roles in the climate fluctuations of the world in the time-scale of decades years, it is indispensable to correctly evaluate effects of the ocean sequestration of CO2 when this technique would actually be undertaken. Based on the flow fields of the whole Pacific Ocean, which were calculated by the data assimilation system, the authors examined changes in CO2 concentration of the ocean which may result from CO2 introduction into the subarctic zone of the northern Pacific Ocean.
海洋調査技術学会の論文