Modification of the Baroclinic Instability Associated with Positive and Negative Arctic Oscillation Index: A Theoretical Proof of the Positive Feedback
スポンサーリンク
概要
- 論文の詳細を見る
The modification of the baroclinic instability associated with positive and negative Arctic Oscillation Index (AOI) is theoretically investigated using a linearized 3D spectral primitive equation model. The linear instability analysis shows that the most unstable Charney mode MC changes its structure to intensify (weaken) the polar jet by the eddy momentum flux associated with the positive (negative) AOI. More importantly, the meridionally dipole Charney mode M2 is modified into the monopole Charney mode M1 to transport eddy momentum flux northward under the positive AOI condition. It is found that this modification is essential to intensify the polar jet during the AOI positive phase. Hence, we have theoretically confirmed that there are positive feedbacks between the baroclinic instability waves and the Arctic Oscillation characterized by the intensity of the polar jet.
論文 | ランダム
- 麻酔科学史の新研究(9)「笑気研究会」の歩み
- 74) 新たに確定した「乳巖姓名録」中の患者23名の歿年月日について(日本歯科医史学会第30回(平成14年度)学術大会一般演題抄録)
- 新たに確定した「乳巖姓名録」中の患者二三名の歿年月日について
- 新に確定された青洲の乳癌患者三名の死亡年月日
- EL4-3 小細胞肺癌(肺癌ガイドライン「肺癌診療ガイドライン改訂後1年の現状と展望」, 第47回日本肺癌学会総会)