Study for the dissipation process of oceanic surface waves and mesoscale eddies based on a complementary approach
Project/Area Number |
26400474
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Meteorology/Physical oceanography/Hydrology
|
Research Institution | Nagoya University (2015-2017) Japan Agency for Marine-Earth Science and Technology (2014) |
Principal Investigator |
Hidenori Aiki 名古屋大学, 宇宙地球環境研究所, 准教授 (60358752)
|
Project Period (FY) |
2014-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
Keywords | 群速度ベクトル / 熱帯ー亜熱帯相互作用 / 波動エネルギー循環 / 気候変動 / 大気海洋波動 / エネルギー追跡 / 熱帯中緯度相互作用 / テレコネクション / シースプレー観測 / 波と平均流相互作用 / ロスビー波 / エネルギーフラックス / 風波 / 波飛沫 / 運動量フラックス(風応力) / 運動量フラックス / 重み付け平均理論 / Lagrange平均理論 |
Outline of Final Research Achievements |
In previous theories for the atmosphere and ocean, frameworks for the dynamics of midlatitude and equatorial regions have been separated. Thus it has been impossible to continuously trace the life-cycle of wave energy from tropical to extratropical regions. This study has developed a scheme for calculating group velocity that is seamlessly diagnosable for waves at all latitudes and automatically applicable to various types of waves (Rossby, inertia-gravity, and Kelvin waves). The new scheme enables to trace the generation, circulation, and dissipation of wave energy with referring to the direction of group velocity.
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Report
(5 results)
Research Products
(48 results)