Title Broken symmetry and long-term forecasting
Authors Christopher Essex, Silvana Ilie, Robert M. Corless
Alternative Location http://www.agu.org/pubs/cro..., Restricted Access
Alternative Location http://dx.doi.org/10.1029/2..., Restricted Access
Publication JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
Year 2007
Volume 112
Issue D24
Document type Article
Status Published
Quality controlled Yes
Language eng
Publisher AMER GEOPHYSICAL UNION
Abstract English 1 This paper takes a novel approach to a known basic difficulty with computer simulations of nonlinear dynamical systems relevant to climate modeling. Specifically, we show by minimal examples how small systematic modeling errors might survive averaging over an ensemble of initial conditions. The resulting predictive errors can grow slowly enough initially that they may be overlooked without contradicting known behaviors on middle scales. However, they may nonetheless be significant on long timescales, given our current knowledge. Mathematical symmetry, which has been investigated for improving accuracy in computational algorithms, turns out to provide a novel perspective to this issue.
ISBN/ISSN/Other ISSN: 0148-0227

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