Covariance localization in the ensemble transform Kalman filter based on an augmented ensemble
نویسندگان
چکیده
منابع مشابه
Localization in the ensemble Kalman Filter
Data assimilation in meteorology seeks to provide a current analysis of the state of the atmosphere to use as initial conditions in a weather forecast. This is achieved by using an estimate of a previous state of the system and merging that with observations of the true state of the system. Ensemble Kalman filtering is one method of data assimilation. Ensemble Kalman filters operate by using an...
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Ensemble Kalman filter techniques are widely used to assimilate observations into dynamical models. The dimension of phase is typically much larger than the number of ensemble members which leads to inaccurate results in the computed covariance matrices. These inaccuracies lead, among others, to spurious long range correlations which can be eliminated by Schur-product-based localization techniq...
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ژورنال
عنوان ژورنال: Ocean and Coastal Research
سال: 2020
ISSN: 2675-2824
DOI: 10.1590/s2675-28242020068309