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Symmetric Baroclinic Instability of Modified Hadley-Cell Models
https://jaxa.repo.nii.ac.jp/records/31431
https://jaxa.repo.nii.ac.jp/records/314311e1142ad-1014-438e-b140-96f933c5ae86
名前 / ファイル | ライセンス | アクション |
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SA0035229.pdf (1.7 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | Symmetric Baroclinic Instability of Modified Hadley-Cell Models | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
KWAK, Ho Sang
× KWAK, Ho Sang× KUWAHARA, Kunio |
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出版者 | ||||||
出版者 | 宇宙科学研究所 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science | |||||
書誌情報 |
en : The Institute of Space and Astronautical Science report 巻 663, p. 1-20, 発行日 1996-03 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | A numerical investigation is made of symmetric instability of baroclinic flows in a finite domain of horizontal fluid layer. A modified rotating Hadley-cell flow configuration is designed to achieve Ri&gne0 (1) by constructing two models, i.e., in Model I, ΔT_v=0; and in Model II, the free-slip and thermally-insulated upper boundary is adopted. A finite-volume numerical procedure is utilized to integrate the fully-nonlinear time-dependent Navier-Stokes equations over broad parameter ranges, i.e., the thermal Rossby number 1.0&gneRo&gne40.0,and the Richardson number 0.2&gneRi&gne2.0. The Ro-Ri diagram illustrates three flow regimes : (1) the stable flow regime with respect to the symmetric baroclinic instability, (2) the steady symmetric baroclinic wave regime, and (3) the vacillating symmetric baroclinic wave regime. The critical Richardson number for stability is determined and overall energetics of finite amplitude symmetric baroclinic waves are illustrated. The large-time behavior of wave generation is examined, and a plausible physical interpretation is offered. Both the time-dependent characteristics and the energetics of the vacillating symmetric baroclinic waves are scrutinized. Discussions are given on the impact of the nonlinear effects of symmetric baroclinic waves on the basic-state flow field. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0285-6808 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10632072 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA0035229000 |