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1.
朱敏  林万涛  林一骅  莫嘉琪 《物理学报》2011,60(3):30204-030204
研究了一类厄尔尼诺-南方涛动(ENSO)的时滞振子耦合系统. 利用时滞理论, 摄动等方法求出了ENSO模型解的渐近式,并讨论了相应问题的渐近性态. 关键词: 非线性 摄动 ENSO模型  相似文献   

2.
厄尔尼诺/拉尼娜-南方涛动是涉及赤道太平洋中的一个海-气交互的年际现象.本文的目的是建立一类海-气振子模型的非线性奇摄动问题的渐近求解方法.并在一类海-气振子模型的基础上,借用奇摄动方法研究了对应问题的近似解.由奇摄动方法得到的结果分析厄尔尼诺/拉尼娜-南方涛动海-气振子模型的赤道太平洋的海表温度异常和气-海振子的温度深度异常.  相似文献   

3.
一类厄尔尼诺海-气振子机理的同伦解法   总被引:5,自引:0,他引:5       下载免费PDF全文
莫嘉琪  林万涛 《物理学报》2005,54(3):993-995
研究了一类厄尔尼诺-南方海涛(ENSO)机理耦合系统振荡.利用同伦理论和摄动方法,较简便地得到了一类ENSO模型解的近似展开式. 关键词: 非线性 同伦理论 摄动 厄尔尼诺-南方海涛模型  相似文献   

4.
海-气振子ENSO模型的同伦解法   总被引:11,自引:0,他引:11       下载免费PDF全文
莫嘉琪  林万涛  朱江 《物理学报》2004,53(10):3245-3247
研究了一个厄尔尼诺-南方海涛(ENSO)的时滞振子的模型.利用同伦映射方法求出了ENSO模型的近似解 关键词: 非线性 同伦 ENSO模型  相似文献   

5.
谢峰  林一骅  林万涛  莫嘉琪 《物理学报》2011,60(1):10201-010201
厄尔尼诺/拉尼娜-南方涛动(ENSO)是一个包括在赤道太平洋中海-气交互作用的年际现象. 本文创建一个求解ENSO模型非线性方程的近似方法. 并在这基础上借助同伦映射方法研究了一类ENSO模型振子模型的近似解与精确解. 同时讨论了近似解的精度. 从得到的结果看出,同伦映射方法能够用于分析ENSO模型在赤道东太平洋中的SST异常和气-海振荡的温跃层深度异常.  相似文献   

6.
莫嘉琪  林万涛  王辉 《物理学报》2005,54(9):3967-3970
研究了一类厄尔尼诺-南方海涛(ENSO)机理耦合系统振荡.利用摄动理论和方法,较简便地得到了一类ENSO模型解的一致有效的渐近展开式. 关键词: 非线性 摄动理论 厄尔尼诺-南方涛动模型  相似文献   

7.
莫嘉琪  林一骅  林万涛 《物理学报》2005,54(9):3971-3974
研究了一类热带海-气耦合振子的模型.利用摄动方法求出了相应模式的渐近解. 关键词: 非线性 摄动 海气耦合模式 厄尔尼诺-南方涛动  相似文献   

8.
石兰芳  欧阳成  莫嘉琪 《物理学报》2012,61(12):120201-120201
热带海-气振子是一个复杂的自然现象.本文是对一个海-气耦合振子模型,利用一个待定系数和摄动理论相结合的新方法,得到了相应模型的行波渐近解.  相似文献   

9.
莫嘉琪  林万涛 《中国物理》2005,14(5):875-878
厄尔尼诺—南方海涛(ENSO)是涉及到赤道太平洋中的一个年际现象。本文的目的是建立一个ENSO模型的非线性方程的渐近求解方法。并在一类ENSO模型振子的基础上,借用同伦映射方法研究了对应问题的近似解。由同伦方法得到的结果去分析ENSO模型的赤道东太平洋的SST变异和气-海振子的温度深度变异。  相似文献   

10.
赤道东太平洋SST的海-气振子模型   总被引:10,自引:0,他引:10       下载免费PDF全文
研究了一个海-气振子的非线性耦合系统的模型.利用变分迭代原理,首先构造了相应的一组泛函.其次选取其Lagrange乘子.再用广义变分迭代方法得到了海-气振子模型一组解的近似序列. 关键词: 海-气振子 非线性 耦合系统 厄尔尼诺模型  相似文献   

11.
Asymptotic solution of a sea--air oscillator for ENSO mechanism   总被引:1,自引:0,他引:1       下载免费PDF全文
莫嘉琪  林万涛  王辉 《中国物理》2007,16(3):578-581
The EI Ni\~{n}o/La Ni\~{n}a--Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific ocean--atmosphere interactions. In this paper, a class of coupled system of the ENSO mechanism is considered. Based on a class of oscillator of ENSO model, the asymptotic solution of a corresponding problem is studied by employing the approximate method. It is proved from the results that the perturbation method can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere--ocean oscillation for the ENSO model.  相似文献   

12.
莫嘉琪  王辉  林万涛 《中国物理》2006,15(7):1450-1453
A time delay equation for the sea--air oscillator model is studied. The aim is to create an asymptotic solving method of nonlinear equation for the El Ni\tilde{\rm n}o--Southern Oscillation model. And based on a class of oscillators of the model, employing the method of ENSO singular perturbation, the asymptotic solution of corresponding problem is obtained. It is proven from the results that the method of singular perturbation can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific of the atmosphere--ocean oscillation for ENSO model.  相似文献   

13.
The EI Nio-southern oscillation (ENSO) is an interannual phenomenon involved in tropical Pacific oceanatmosphere interactions. In this paper, we develop an asymptotic method of solving the nonlinear equation using the ENSO model. Based on a class of the oscillator of the ENSO model, a approximate solution of the corresponding problem is studied employing the perturbation method.  相似文献   

14.
杜增吉  林万涛  莫嘉琪 《中国物理 B》2012,21(9):90201-090201
The EI Niño-southern oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific ocean-atmosphere interactions. In this paper, we develop an asymptotic method of solving the nonlinear equation using the ENSO model. Based on a class of oscillator of the ENSO model, a approximate solution of the corresponding problem is studied employing the perturbation method.  相似文献   

15.
The El Nifio-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific Oceanatmosphere interactions. In this paper, an asymptotic method of solving the nonlinear equation for the ENSO model is used. And based on a class of oscillator of ENSO model, the approximate solution of a corresponding problem is studied by employing the perturbation method. Firstly, an ENSO model of nonlinear time delay equation of equatorial Pacific is introduced, Secondly, by using the perturbed method, the zeroth and first order asymptotic perturbed solutions are constructed. Finally, from the comparison of the values for a figure, it is seen that the first asymptotic perturbed solution using the perturbation method has a good accuracy. And it is proved from the results that the perturbation method can be used as an analytic operation for the sea surface temperature anomaly in the equatorial Pacific of the atmosphere-ocean oscillation for the ENSO model.  相似文献   

16.
莫嘉琪  林一骅  王辉 《中国物理》2005,14(12):2387-2390
The E1 Nifio/La Nifia Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific ocean-atmosphere interactions. In this paper, a coupled system of sea-air oscillator model is studied. The aim is to create an asymptotic solving method of nonlinear equation for the ENSO model. And based on a class of oscillators of ENSO model, employing the method of homotopic mapping, the approximate solution of corresponding problem is studied. It is proven from the results that the homotopic method can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere-ocean oscillation for ENSO model.  相似文献   

17.
莫嘉琪  王辉  林万涛 《中国物理》2006,15(9):1927-1931
The EI Nino/La Nina-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific Ocean-atmosphere interactions. In this paper, an asymptotic method of solving the nonlinear equation for the ENSO model is created. And based on a class of oscillator of the ENSO model, the approximate solution of a corresponding problem is studied by employing the method of homotopic mapping. It is proved from the results that the homotopic method can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere-ocean oscillation for the ENSO model.  相似文献   

18.
海-气振子厄尔尼诺-南方涛动模型的近似解   总被引:1,自引:0,他引:1       下载免费PDF全文
莫嘉琪  林一骅  林万涛 《物理学报》2010,59(10):6707-6711
研究了一类厄尔尼诺-南方涛动(ENSO)的时滞耦合系统振荡的模型.利用同伦映射方法求出了ENSO模型解的渐近展开式,并讨论了相应问题的渐近性态。  相似文献   

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