Initialization of unstable coupled systems by breeding ensembles

Shu Chih Yang, Ming Cai, Malaquias Peña, Eugenia Kalnay

Research output: Contribution to journalConference articlepeer-review


The initialization of unstable coupled ocean-atmosphere data assimilation systems by breeding ensembles was analyzed. the use of some nonlinear models, including the Zebiak-Cane model and coupled Lorenz model, for isolating the slow coupled instabilities by breeding process. The results show that breeding with long rescaling intervals can be used to capture the slowly evolving ENSO component of a coupled model. The long interval for rescaling the ocean-atmosphere perturbations allows atmospheric noise to saturate.

Original languageEnglish
Pages (from-to)299-307
Number of pages9
JournalBulletin of the American Meteorological Society
StatePublished - 2004
EventCombined Preprints: 84th American Meteorological Society (AMS) Annual Meeting - Seattle, WA., United States
Duration: 11 Jan 200415 Jan 2004


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