| Project/Area Number |
04640418
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
気象・海洋・陸水学
|
|---|
| Research Institution | Research Institute for Applied Mechanics, Kyushu University |
|---|
Principal Investigator |
YOON Jong-Hwan Kyushu University, Research Institute for Applied Mechanics, associate professor, 応用力学研究所, 助教授 (80111459)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KUBOKAWA Atsushi Kyushu University, Interdisciplinary Graduate School of Engineering Sciences, as, 総合理工学研究科, 助教授 (00178039)
TAKEMATSU Masaki Kyushu University, Research Institute for Applied Mechanics, professor, 応用力学研究所, 教授 (50038535)
|
|---|
| Project Period (FY) |
1992 – 1993
|
| Project Status |
Completed (Fiscal Year 1993)
|
| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥1,100,000 (Direct Cost: ¥1,100,000)
|
|---|
| Keywords | western boundary current / latitude of separation / diagnostic model / mini ocean / East Korean Warm Current / 離岸 / 水平渦動粘性 / 水平渦動拡散 / 風の回転 / スヴェルドラップ輸送 |
|---|
| Research Abstract |
To study the mechanism of the separation of the western boundary current (WBC), we carried out numerical experiments about an ideal ocean by a reduced gravity model and about the Japan Sea "the mini ocean" by a reduced gravity model, a multi - level model and a diagnostic model. We also carried out geostrophic calculation with the data provided by NODC and Russia.
The latitude of separation is determined by the balance between the strength of the northward WBC(the East Korean Warm Current) and the cyclonic gyre north of the Polar front(the subarctic gyre). The cyclonic gyre north of the Polar front is formed by the wind with positive curl and the cooling in winter. However, we cannot show which is more important, wind or cooling, guantitatively at this stage.
|
