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Chaotic Behaviors in the Response of a Quasigeostrophic Oceanic Double Gyre to Seasonal External Forcing
https://nied-repo.bosai.go.jp/records/4963
https://nied-repo.bosai.go.jp/records/496391de5192-4f14-486e-9daa-2bdbe227bb00
Item type | researchmap(1) | |||||||||
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公開日 | 2023-07-10 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | Chaotic Behaviors in the Response of a Quasigeostrophic Oceanic Double Gyre to Seasonal External Forcing | |||||||||
著者 |
Shinya Shimokawa
× Shinya Shimokawa
× Tomonori Matsuura
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抄録 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | <title>Abstract</title> In an oceanic double-gyre system, nonlinear oscillations of the ocean under seasonally changing external forcing are investigated using a 1.5-layer quasigeostrophic model and a simple model related to energy balance of the oceanic double gyre. In the experiments, the variable parameter is the amplitude of external seasonal forcing and the Reynolds number is fixed as 39, at which periodic shedding of inertial subgyres occurs. The authors found that entrainment (at 2 times the period of the forcing) and intermittency (on?off type), phenomena that are often seen in nonlinear systems, emerge with increasing amplitude of the forcing. They seem to be related to the generation mechanism and characteristics of long-term (from interannual to decadal) variations in the strong current region of subtropical gyres such as the Kuroshio and its extension region. |
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言語 | en | |||||||||
書誌情報 |
en : Journal of Physical Oceanography 巻 40, 号 7, p. 1458-1472, 発行日 2010-07-01 |
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出版者 | ||||||||||
言語 | en | |||||||||
出版者 | American Meteorological Society | |||||||||
ISSN | ||||||||||
収録物識別子タイプ | EISSN | |||||||||
収録物識別子 | 1520-0485 | |||||||||
DOI | ||||||||||
関連識別子 | 10.1175/2010jpo4400.1 |