World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Inversion of the Western Pacific Subtropical High Dynamic Model and Analysis of Dynamic Characteristics for Its Abnormality : Volume 20, Issue 1 (18/02/2013)

By Hong, M.

Click here to view

Book Id: WPLBN0003988180
Format Type: PDF Article :
File Size: Pages 12
Reproduction Date: 2015

Title: Inversion of the Western Pacific Subtropical High Dynamic Model and Analysis of Dynamic Characteristics for Its Abnormality : Volume 20, Issue 1 (18/02/2013)  
Author: Hong, M.
Volume: Vol. 20, Issue 1
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Description
Description: Key Laboratory of Ocean Environment, Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing, China. Based on time series data of 500 hPa potential field from NCEP/NCAR (National Center for Environmental Forecast of American/National Center for Atmospheric Research), a novel consideration of empirical orthogonal function (EOF) time–space separation and dynamic system reconstruction for time series is introduced. This method consists of two parts: first, the dynamical model inversion and model parameter optimization are carried out on the EOF time coefficient series using the genetic algorithm (GA), and, second, a nonlinear dynamic model representing the subtropical high (SH) activity and its abnormality is established. The SH activity and its abnormal mechanism is studied using the developed dynamical model. Results show that the configuration and diversification of the SH equilibriums have good correspondence with the actual short–medium term abnormal activity of the SH. Change of SH potential field brought by the combination of equilibriums is more complex than that by mutation, and their exhibition patterns are different. The mutation behavior from high-value to low-value equilibriums of the SH in summer corresponds with the southward drop of the SH in the observed weather process. The combination behavior of the two steady equilibriums corresponds with disappearance of the double-ridge phenomenon of the SH. Dynamical mechanisms of these phenomena are explained.

Summary
Inversion of the western Pacific subtropical high dynamic model and analysis of dynamic characteristics for its abnormality

Excerpt
Alexander, A., Nepomany, A., and Ilya, B. S.: Stability of Thermocapillary Flows with Inclined Temperature Gradien, J. Fluid. Mech., 442, 141–155, 2001.; Cao, J., Huang, R. H., Xie, Y. Q., and Tao, Y.: Evolution mechanism of the Western Pacific subtropical high, Sci. China Ser. D.-Earth Sci., 46, 659–666, 2002.; Gouesbet, G.: Reconstruction of the vector fields of continuous dynamical systems form numerical scalar time series, Phys. Rev. A, 43, 5321–5331, 1991.; Hassard, B. D., Kazarinoff, W. D., and Wan, Y. H.: Theory and Application of Hopf Bifurcation, Cambridge University Press, Cambridge, 1982.; He, J. H., Qi, L., Wei, J., and Chi, Y. Z.: Reinvestigations on the East Asian Subtropical Monsoon and Tropical Monsoon, Chinese J. Atmos. Sci., 6, 1257–1265, 2007.; Li, J. P. and Zhu, J. L.: Climatological features of the Western Pacific subtropical high southward retreat process in late-spring and early-summer, Acta Meteorologica Sinica, 4, 397–412, 2010.; Liu, S. Z.: N-dimensional topological singularities of classification, Adv. Math., 8, 217–242, 1965.; Lu, X. T. and Zhang, J. Q.: Nonlinear physics, Press of University of Science and Technology of China, Anhui, 2010.; Qi, L., Guan, Z. Y., Zhang, Z. Q., and He, J. H.: Climatological View on Double Ridges Process of the Western Pacific Subtropical High and Its Relation to Quasi-10-day Oscillation of Monsoon Trough, Chinese J. Atmos. Sci., 32, 165–174, 2008.; Wang, L.: Intelligent Optimization Algorithms and Its Application, Tsinghua University Press, Beijing, 2001.; Wang, X. W. and Carey, G. F.: On Marangoni Effects in a Heated Thin Fluid Layer with a Monolayer Surfactant. Part I: Model Development and Stability Analysis, Int. J. Numer. Meth. Fluids, 48, 1–16, 2005.; Zhang, R., Hong, M., Sun, Z. B., Niu, S. J., Zhu, W. J., Min, J. Z., and Wan, Q. L.: Non-linear Dynamic Model Retrieval of Subtropical High Based on Empirical Orthogonal Function And Genetic Algorithm, Appl. Math. Mech., 27, 1645–1654, 2006.; Zhang, R., Hong, M., Wang, H. Z., Chen, Y. D., and Wan, Y. L.: Retrieval the non-linear dynamic forecast model of El Nino/La Nina index based on the genetic algorithm optimization, Chinese J. Geophys., 51, 633–645, 2008.

 

Click To View

Additional Books


  • A Mechanistic Modelling and Data Assimil... (by )
  • Quantitative Analysis of Randomness Exhi... (by )
  • Model Error Estimation in Ensemble Data ... (by )
  • Linear and Nonlinear Post-processing of ... (by )
  • Statistical Analysis of Polychaete Popul... (by )
  • The Evolution of Mode-2 Nonlinear Intern... (by )
  • The Soverato Flood in Southern Italy: Pe... (by )
  • Sensitivity of the Attractor of the Baro... (by )
  • Momentum and Buoyancy Transfer in Atmosp... (by )
  • Consequences of Entropy Bifurcation in N... (by )
  • Mirror Mode Structures and Elf Plasma Wa... (by )
  • Asymmetry of Wind Waves Studied in a Lab... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.