Chaos Excitation and Stochastic Synchronization in an Oceanic Double Gyre

• SHIMOKAWA Shinya

  National Research Institute for Earth Science and Disaster Resilience

• MATSUURA Tomonori

  University of Toyama

抄録

Stochastic synchronization, which is the coupling phenomena of synchronization and stochastic resonance, is considered to be related to formation of ordered structure, such as in the rhythm adjustment observed in non-linear systems including ocean system. To investigate chaos excitation and the relation of it to the stochastic synchronization in the oceanic double gyre, numerical simulations are conducted using 1.5 layer reduced gravity quasi-geostrophic model driven by seasonal changing forcing with red noise. Results show that by adding red noise to external forcing, synchronization (i.e., stochastic synchronization) occurs when the amplitude of external forcing is smaller than that in the case without noise, and the transition to chaos excitation occurs more rapidly when the amplitude of external forcing is larger, corresponding to the Curry-York model.

収録刊行物

• Theoretical and Applied Mechanics Japan

  Theoretical and Applied Mechanics Japan 64 (0), 15-22, 2018

  日本学術会議 「機械工学委員会・土木工学・建築学委員会合同IUTAM分科会」

詳細情報

• CRID: 1390001288121555328
• NII論文ID: 130007584842
• DOI: 10.11345/nctam.64.15
• ISSN: 13494244
• ISSN: 13480693
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可