| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Although Antarctic Bottom Water formation plays very important roles in the Earth's climate, it has not yet been realistically reproduced by numerical simulations. The present study focuses on the improvement of numerical model code by implementing a Lagrangian particle tracking system built-into a non-hydrostatic ocean model. Using this Eulerian-Lagrangian hybrid approach, we develop a new coupled sea ice-ocean model that explicitly deals with frazil ice as Lagrangian particles. It successfully simulated small scale sea ice formation processes in a coastal polynya. We also develop a model that explicitly simulates suspended sediments and their effects on the apparent density of seawater. The newly developed non-hydrostatic ocean model with a built-in Lagrangian particle tracking system has many potential applications.
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