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Numerical Analysis of the Mixed 4th-Order Runge-Kutta Scheme of Conditional Nonlinear Optimal Perturbation Approach for the EI Niño-Southern Oscillation Model

Published online by Cambridge University Press:  19 September 2016

Xin Zhao*
Affiliation:
College of Tourism and Environment, Shaanxi Normal University, Shaanxi 720062, China Weihe River Basin Resources and Environment and Ecological Civilization, Institute of Computational Mathematics and Its Applications, Baoji University of Arts and Sciences, Shaanxi 721013, China
Jian Li*
Affiliation:
Weihe River Basin Resources and Environment and Ecological Civilization, Institute of Computational Mathematics and Its Applications, Baoji University of Arts and Sciences, Shaanxi 721013, China
Wansuo Duan*
Affiliation:
LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
Dongqian Xue*
Affiliation:
College of Tourism and Environment, Shaanxi Normal University, Shaanxi 720062, China
*
*Corresponding author. Email:sungirl_zhx@163.com (X. Zhao), jiaaanli@gmail.com (J. Li), duanws@lasg.iap.ac.cn (W. S. Duan), xuedq@snnu.edu.cn (D. Q. Xue)
*Corresponding author. Email:sungirl_zhx@163.com (X. Zhao), jiaaanli@gmail.com (J. Li), duanws@lasg.iap.ac.cn (W. S. Duan), xuedq@snnu.edu.cn (D. Q. Xue)
*Corresponding author. Email:sungirl_zhx@163.com (X. Zhao), jiaaanli@gmail.com (J. Li), duanws@lasg.iap.ac.cn (W. S. Duan), xuedq@snnu.edu.cn (D. Q. Xue)
*Corresponding author. Email:sungirl_zhx@163.com (X. Zhao), jiaaanli@gmail.com (J. Li), duanws@lasg.iap.ac.cn (W. S. Duan), xuedq@snnu.edu.cn (D. Q. Xue)
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Abstract

In this paper, we proposes and analyzes the mixed 4th-order Runge-Kutta scheme of conditional nonlinear perturbation (CNOP) approach for the EI Niño-Southern Oscillation (ENSO) model. This method consists of solving the ENSO model by using a mixed 4th-order Runge-Kutta method. Convergence, the local and global truncation error of this mixed 4th-order Runge-Kutta method are proved. Furthermore, optimal control problem is developed and the gradient of the cost function is determined.

Type
Research Article
Copyright
Copyright © Global-Science Press 2016 

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