Synchronization experiments with an atmospheric global circulation model
Synchronization experiments with an atmospheric global circulation model
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DOI：
10.1063/1.1338127
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发表时间：
2001-03-01
期刊：
影响因子：
2.9
通讯作者：
Lunkeit, F
中科院分区：
文献类型：
--
作者：
Lunkeit, F
通过耦合两个相同的全球大气环流模型，研究了多自由度混沌系统的同步问题。从不同的初始条件出发，两个子模型根据耦合强度的不同表现出完全同步和非完全同步。完全同步的耦合强度阈值相对较低，表明气候变率中涉及的同步机制的潜在重要性。此外，结果表明同步实验是分析复杂动力学模型的一种有价值的额外方法，例如，来估计最大的李雅普诺夫指数(C)2001年美国物理学会。
Synchronization in a chaotic system with many degrees of freedom is investigated by coupling two identical global atmospheric circulation models. Starting from different initial conditions, the two submodels show complete synchronization as well as noncomplete synchronization depending on the coupling strength. The relatively low value of the coupling strength threshold for complete synchronization indicates the potential importance of synchronization mechanisms involved in climate variability. In addition, the results suggest synchronization experiments as a valuable additional method to analyze complex dynamical models, e.g., to estimate the largest Lyapunov exponent. (C) 2001 American Institute of Physics.