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RISAn Adaptive Approach to Mitigate Background Covariance Limitations in the Ensemble Kalman Filter
Publisher: American Meteorological Society
Abstract: A new approach is proposed to address the background covariance limitations arising from undersampled ensembles and unaccounted model errors in the ensemble Kalman filter (EnKF). The method enhances the representativeness ...
Subseasonal Potential Predictability of Horizontal Water Vapor Transport and Precipitation Extremes in the North Pacific
Publisher: American Meteorological Society
Linear versus Nonlinear Filtering with Scale-Selective Corrections for Balanced Dynamics in a Simple Atmospheric Model
Publisher: American Meteorological Society
Abstract: his paper investigates the role of the linear analysis step of the ensemble Kalman filters (EnKF) in disrupting the balanced dynamics in a simple atmospheric model and compares it to a fully nonlinear particle-based filter ...
Coupled Impacts of the Diurnal Cycle of Sea Surface Temperature on the Madden–Julian Oscillation
Publisher: American Meteorological Society
Abstract: his study quantifies, from a systematic set of regional ocean?atmosphere coupled model simulations employing various coupling intervals, the effect of subdaily sea surface temperature (SST) variability on the onset and ...
An Adjoint-Based Adaptive Ensemble Kalman Filter
Publisher: American Meteorological Society
Abstract: new hybrid ensemble Kalman filter/four-dimensional variational data assimilation (EnKF/4D-VAR) approach is introduced to mitigate background covariance limitations in the EnKF. The work is based on the adaptive EnKF (AEnKF) ...
The Madden–Julian Oscillation in CCSM4
Publisher: American Meteorological Society
Abstract: his study assesses the ability of the Community Climate System Model, version 4 (CCSM4) to represent the Madden?Julian oscillation (MJO), the dominant mode of intraseasonal variability in the tropical atmosphere. The U.S. ...
Impacts of Northeastern Pacific Buoy Surface Pressure Observations
Publisher: American Meteorological Society
Monthly Modulations of ENSO Teleconnections: Implications for Potential Predictability in North America
Publisher: American Meteorological Society
Probabilistic Predictions from Deterministic Atmospheric River Forecasts with Deep Learning
Publisher: American Meteorological Society
El Niño–Like Physical and Biogeochemical Ocean Response to Tropical Eruptions
Publisher: American Meteorological Society
Abstract: AbstractThe oceanic response to recent tropical eruptions is examined in Large Ensemble (LE) experiments from two fully coupled global climate models, the Community Earth System Model (CESM) and the Geophysical Fluid ...