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气候与环境研究 2011
Choice of Ensemble Members for Ensemble Optimal Interpolation
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Abstract:
The back error covariance controls the magnitude and structure of adjustment to the observations.Therefore,it plays a very important role in the quality of the assimilation.For the ensemble-based data assimilation methods,the ensemble determines the distribution of the background error covariance.This study investigates the impacts of choice and update of static ensemble for Ensemble Optimal Interpolation(EnOI) on the structure of the back-error covariance based on the long-time HYCOM model integration.The ...