NSCAT・SSM/I衛星観測データを用いた太平洋3次元流動場による二酸化炭素の海洋隔離の可能性に関する基礎的研究

抄録

As one of measures for controlling the emission of carbon dioxide (CO₂) into the atmosphere, attention is focused on making effective use of the ability of the ocean to absorb CO₂, and an evaluation is performed on the ability to isolate CO₂ from the atmosphere by emitting CO₂ into areas deeper than the middle layer of the ocean.
In the first stage of this research, the Pacific three-dimensional circulation model was revised to enhance the accuracy of the circulation model further. The wind-velocity value observed from two satellites (NSCAT and SSM/I) were applied as an ocean current driving force, and equations in which treatment at the time of a light wind is regulated more finely were used to analyze ocean currents in the Pacific. The results of analysis were compared with observed values, and a data assimilation technique was used so that calculated values can be corrected per time step, thus obtaining good results. And we showed that the results by tracking water particles indicate the possibility of isolation CO₂under 2000m depth.