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| Titel |
Self-breeding: a new method to estimate local Lyapunov structures |
| VerfasserIn |
J. D. Keller, A. Hense |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2198-5634
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics Discussions ; 1, no. 2 ; Nr. 1, no. 2 (2014-09-09), S.1509-1537 |
| Datensatznummer |
250115125
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| Publikation (Nr.) |
 copernicus.org/npgd-1-1509-2014.pdf |
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| Zusammenfassung |
| We present a new approach to estimate local Lyapunov vectors. The
so called self-breeding method is based on the breeding of growing
modes technique from medium range weather forecasting and consists
of a continuous forecasting and rescaling cycle. Using the Lorenz96
model we test and characterize the behavior of the algorithm
regarding error growth, spatial perturbation structure estimates and
orthogonalization. The results indicate that the method can be used
to generate error growing modes optimized for a certain rescaling
interval, thus enabling the user to target specific scales of error
growth. When an additional orthogonalization procedure is applied,
the method is able to produce structures representing the error
growth subspace spanned by the largest Lyapunov vectors. |
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