| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
Ekman pumping is a fundamental tool for understanding the causality in ocean variability except for the equator, where Ekman pumping becomes infinity. We have solved this difficulty by proposing and producing Ekman-pumping forced model for the first time and its adjuring backward integration version. By conducting a series of numerical experiments, we have found that off-equatorial Ekman pumping contribute more strongly in the Indian Ocean rather than in the Pacific Ocean for the equatorial upper layer thickness variability. Also, off-equatorial Ekman pumping contributes more for large-magnitude events of Indian Ocean dipole mode than for small magnitude events.
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