کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
976490 933134 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Resonant phenomena in extended chaotic systems subject to external noise: The Lorenz’96 model case
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Resonant phenomena in extended chaotic systems subject to external noise: The Lorenz’96 model case
چکیده انگلیسی

We have investigated the effects of noise on an extended chaotic system. The chosen model is the Lorenz’96, a type of “toy” model used for climate studies. Through the analysis of the system’s time evolution and its time and space correlations, we have obtained numerical evidence for two distinct stochastic resonance-like behaviors. Such behaviors are seen when both the usual and a generalized signal-to-noise ratio functions are depicted as a function of the external noise intensity, or of the system size. The underlying mechanisms seem to be associated with a noise-induced chaos reduction. The possible relevance of these and other findings for an optimal climate prediction are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 387, Issue 13, 15 May 2008, Pages 3103–3110
نویسندگان
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