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A Moment Matching Ensemble Filter for Nonlinear Non-Gaussian Data Assimilation
Publisher: American Meteorological Society
Abstract: he ensemble Kalman filter is now an important component of ensemble forecasting. While using the linear relationship between the observation and state variables makes it applicable for large systems, relying on linearity ...
Comparison of Ensemble Kalman Filters under Non-Gaussianity
Publisher: American Meteorological Society
Abstract: Recently various versions of ensemble Kalman filters (EnKFs) have been proposed and studied. This work concerns, in a mathematically rigorous manner, the relative performance of two major versions of EnKF when the forecast ...
Obstacles to High-Dimensional Particle Filtering
Publisher: American Meteorological Society
Abstract: Particle filters are ensemble-based assimilation schemes that, unlike the ensemble Kalman filter, employ a fully nonlinear and non-Gaussian analysis step to compute the probability distribution function (pdf) of a system?s ...