New nonlinear mechanisms of midlatitude atmospheric low-frequency variability
نویسندگان
چکیده
منابع مشابه
New nonlinear mechanisms of midlatitude atmospheric low-frequency variability
This paper studies the dynamical mechanisms potentially involved in the socalled atmospheric low-frequency variability, occurring at midlatitudes in the Northern Hemisphere. This phenomenon is characterised by recurrent nonpropagating and temporally persistent flow patterns, with typical spatial and temporal scales of 6000-10000 km and 10-50 days, respectively. We study a low-order model derive...
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The characteristics of atmospheric low-frequency variability and midlatitude SST variability as simulated by the NCAR Climate System Model are analyzed in the vicinity of the North Paciic and North Atlantic basins. The simulated spatial patterns of variability correspond quite well to those seen in observational datasets, although there are some diierences in the amplitudes of variability. Comp...
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The understanding of atmospheric and oceanic low-frequency variability is an old problem having both theoretical interest and practical importance, e.g., for the assessment of climate change. In this paper possible relations with dynamical systems theory are given, in particular through bifurcation theory. Firstly, a specific type of oceanic low frequency variability is described, the so-called...
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ژورنال
عنوان ژورنال: Physica D: Nonlinear Phenomena
سال: 2010
ISSN: 0167-2789
DOI: 10.1016/j.physd.2010.02.003