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Can We Optimize the Assimilation Order in the Serial Ensemble Kalman Filter? A Study with the Lorenz-96 Model
Publisher: American Meteorological Society
Abstract: AbstractWith the serial treatment of observations in the ensemble Kalman filter (EnKF), the assimilation order of observations is usually assumed to have no significant impact on analysis accuracy. However, Nerger derived ...
Assessing the Ensemble Predictability of Precipitation Forecasts for the January 2015 and 2016 East Coast Winter Storms
Publisher: American Meteorological Society
Abstract: AbstractThe ensemble predictability of the January 2015 and 2016 East Coast winter storms is assessed, with model precipitation forecasts verified against observational datasets. Skill scores and reliability diagrams ...
The Regime Dependence of Optimally Weighted Ensemble Model Consensus Forecasts of Surface Temperature
Publisher: American Meteorological Society
Abstract: Previous methods for creating consensus forecasts weight individual ensemble members based upon their relative performance over the previous N days, implicitly making a short-term persistence assumption about the underlying ...
Potential for New Constraints on Tropical Cyclone Surface-Exchange Coefficients through Simultaneous Ensemble-Based State and Parameter Estimation
Publisher: American Meteorological Society
Physically Explainable Deep Learning for Convective Initiation Nowcasting Using GOES-16 Satellite Observations
Publisher: American Meteorological Society
Elevated Mixed Layers during Great Lake Lake-Effect Events: An Investigation and Case Study from OWLeS
Publisher: American Meteorological Society
Balance and Ensemble Kalman Filter Localization Techniques
Publisher: American Meteorological Society
Abstract: In ensemble Kalman filter (EnKF) data assimilation, localization modifies the error covariance matrices to suppress the influence of distant observations, removing spurious long-distance correlations. In addition to allowing ...
Postprocessing of GEFS Precipitation Ensemble Reforecasts over the U.S. Mid-Atlantic Region
Publisher: American Meteorological Society
Abstract: he potential of Bayesian model averaging (BMA) and heteroscedastic censored logistic regression (HCLR) to postprocess precipitation ensembles is investigated. For this, outputs from the National Oceanic and Atmospheric ...
Simultaneous Assimilation of Planetary Boundary Layer Observations from Radar and All-Sky Satellite Observations to Improve Forecasts of Convection Initiation
Publisher: American Meteorological Society
Diagnosing Factors Leading to an Incorrect Supercell Thunderstorm Forecast
Publisher: American Meteorological Society