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RISObjective Verification of the SAMEX ’98 Ensemble Forecasts
Publisher: American Meteorological Society
Abstract: During May 1998, the Center for Analysis and Prediction of Storms (CAPS) at the University of Oklahoma coordinated a multi-institution numerical forecast project known as the Storm and Mesoscale Ensemble Experiment (SAMEX). ...
The Effect of Large-Scale Atmospheric Uncertainty on Streamflow Predictability
Publisher: American Meteorological Society
Abstract: Hydrological processes are strongly coupled with atmospheric processes related, for example, to precipitation and temperature, and a coupled atmosphere?land surface system is required for a meaningful hydrological forecast. ...
Ensemble Transform with 3D Rescaling Initialization Method
Publisher: American Meteorological Society
Abstract: he ensemble transform with rescaling (ETR) method has been used to produce fast-growing components of analysis error in the NCEP Global Ensemble Forecast System (GEFS). The rescaling mask contained in the ETR method ...
Bias Correction for Global Ensemble Forecast
Publisher: American Meteorological Society
Abstract: he main task of this study is to introduce a statistical postprocessing algorithm to reduce the bias in the National Centers for Environmental Prediction (NCEP) and Meteorological Service of Canada (MSC) ensemble forecasts ...
A Comparison of Perturbations from an Ensemble Transform and an Ensemble Kalman Filter for the NCEP Global Ensemble Forecast System
Publisher: American Meteorological Society
Abstract: wo perturbation generation schemes, the ensemble transformation with rescaling (ETR) and the ensemble Kalman filter (EnKF), are compared for the NCEP operational environment for the Global Ensemble Forecast System (GEFS). ...
Untitled
Publisher: American Meteorological Society
Abstract: AbstractThe Global Ensemble Forecasting System (GEFS) is being extended from 16 to 35 days to cover the subseasonal period, bridging weather and seasonal forecasts. In this study, the impact of SST forcing on the extended-range ...
Untitled
Publisher: American Meteorological Society
Abstract: AbstractA new version of the Global Ensemble Forecast System (GEFS, v11) is tested and compared with the operational version (v10) in a 2-yr parallel run. The breeding-based scheme with ensemble transformation and rescaling ...
Systematic Error Analysis and Calibration of 2-m Temperature for the NCEP GEFS Reforecast of the Subseasonal Experiment (SubX) Project
Publisher: American Meteorological Society
Abstract: AbstractThe National Centers for Environmental Prediction have generated an 18-yr (1999?2016) subseasonal (weeks 3 and 4) reforecast to support the Climate Prediction Center?s operational mission. To create this reforecast, ...
Climatology-Calibrated Precipitation Analysis at Fine Scales: Statistical Adjustment of Stage IV toward CPC Gauge-Based Analysis
Publisher: American Meteorological Society
Abstract: wo widely used precipitation analyses are the Climate Prediction Center (CPC) unified global daily gauge analysis and Stage IV analysis based on quantitative precipitation estimate with multisensor observations. The former ...