Bifurcations in a Nonlinear Dynamical Model between Western Pacific Subtropical High Ridge Line Index and Its Summer Monsoon Impact Factors
Joint Authors
Zhang, Ren
Ge, Jingjing
Chen, Jian
Hong, Mei
Qian, Longxia
Source
Discrete Dynamics in Nature and Society
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-14
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The western Pacific subtropical high (WPSH) is closely related to Asian climate.
Previous studies have shown that a precise dynamical model focusing on the interaction between WPSH and other summer monsoon factors has not been developed.
Based on the concept of dynamical model reconstruction, this paper reconstructs a nonlinear dynamical model of subtropical high ridge line (SHRL) and summer monsoon factors from recent 20 years data.
Then, using genetic algorithm (GA), model inversion and model parameter optimization are carried out.
Based on the reconstructed dynamical model, dynamical characteristics of SHRL are analyzed and an aberrance mechanism is developed, in which the external forcings resulting in the WPSH anomalies are explored.
Results show that the configuration and diversification of the SHRL equilibriums have better represented the abnormal activities of the SHRL in short and medium term.
Change of SHRL brought by the combination of equilibriums is more complex than that brought by mutation.
The mutation behavior from high-value to low-value equilibriums of the SHRL in summer corresponds with the southward drop of the SHRL.
The combination behavior of the two steady equilibriums corresponds with disappearance of the “double-ridge” phenomenon of WPSH.
Dynamical mechanisms of these phenomena are explained.
American Psychological Association (APA)
Hong, Mei& Zhang, Ren& Qian, Longxia& Ge, Jingjing& Chen, Jian. 2014. Bifurcations in a Nonlinear Dynamical Model between Western Pacific Subtropical High Ridge Line Index and Its Summer Monsoon Impact Factors. Discrete Dynamics in Nature and Society،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-492366
Modern Language Association (MLA)
Hong, Mei…[et al.]. Bifurcations in a Nonlinear Dynamical Model between Western Pacific Subtropical High Ridge Line Index and Its Summer Monsoon Impact Factors. Discrete Dynamics in Nature and Society No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-492366
American Medical Association (AMA)
Hong, Mei& Zhang, Ren& Qian, Longxia& Ge, Jingjing& Chen, Jian. Bifurcations in a Nonlinear Dynamical Model between Western Pacific Subtropical High Ridge Line Index and Its Summer Monsoon Impact Factors. Discrete Dynamics in Nature and Society. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-492366
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-492366