Dynamics of Prediction Errors under the Combined Effect of Initial Condition and Model Errors
The transient evolution of prediction errors in the short to intermediate time regime is considered under the combined effect of initial condition and model errors. Some generic features are brought out and connected with intrinsic properties. Under the assumption of small uncorrelated initial error...
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| Veröffentlicht in: | Journal of the atmospheric sciences 2009-03, Vol.66 (3), p.766-778 |
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| container_end_page | 778 |
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| container_issue | 3 |
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| container_title | Journal of the atmospheric sciences |
| container_volume | 66 |
| creator | NICOLIS, C PERDIGAO, Rui A. P VANNITSEM, S |
| description | The transient evolution of prediction errors in the short to intermediate time regime is considered under the combined effect of initial condition and model errors. Some generic features are brought out and connected with intrinsic properties. Under the assumption of small uncorrelated initial errors and of small parameter errors, the conditions of existence of a time at which the mean quadratic error reaches a minimum and of a crossover time at which the contribution of initial condition errors matches that of model errors are determined. The results are illustrated and tested on representative low-order models of atmospheric dynamics exhibiting bistability, saddle-point behavior, and chaotic behavior. |
| doi_str_mv | 10.1175/2008jas2781.1 |
| format | Article |
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| ispartof | Journal of the atmospheric sciences, 2009-03, Vol.66 (3), p.766-778 |
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| language | eng |
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| source | American Meteorological Society; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Atmospheric dynamics Atmospheric models Data assimilation Dynamics Earth, ocean, space Errors Exact sciences and technology External geophysics Meteorology Modelling Physics of the high neutral atmosphere Saddle points Weather forecasting |
| title | Dynamics of Prediction Errors under the Combined Effect of Initial Condition and Model Errors |
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