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RISMedium-Range Convection-Allowing Ensemble Forecasts with a Variable-Resolution Global Model
Publisher: American Meteorological Society
Abstract: AbstractTwo sets of global, 132-h (5.5-day), 10-member ensemble forecasts were produced with the Model for Prediction Across Scales (MPAS) for 35 cases in April and May 2017. One MPAS ensemble had a quasi-uniform 15-km ...
Reproducing the September 2013 Record-Breaking Rainfall over the Colorado Front Range with High-Resolution WRF Forecasts
Publisher: American Meteorological Society
Abstract: our convection-permitting Weather Research and Forecasting Model (WRF) forecasts were produced in an attempt to replicate the record-breaking rainfall across the Colorado Front Range between 1200 UTC 11 September and 1200 ...
A Comparison of Methods Used to Populate Neighborhood-Based Contingency Tables for High-Resolution Forecast Verification
Publisher: American Meteorological Society
Abstract: s high-resolution numerical weather prediction models are now commonplace, ?neighborhood? verification metrics are regularly employed to evaluate forecast quality. These neighborhood approaches relax the requirement that ...
Improving Large-Domain Convection-Allowing Forecasts with High-Resolution Analyses and Ensemble Data Assimilation
Publisher: American Meteorological Society
Abstract: nalyses with 20-km horizontal grid spacing were produced from continuously cycling three-dimensional variational (3DVAR), ensemble square root Kalman filter (EnSRF), and ?hybrid? variational?ensemble data assimilation (DA) ...
The Seasonal Cycle of Wind-Stress Curl in Subtropical Eastern Boundary Current Regions
Publisher: American Meteorological Society
Abstract: Historical surface marine wind reports have been processed to define characteristic seasonal distributions of wind-stress curl over the four major eastern boundary current regions of the World Ocean (i.e., the California, ...
Reflection of Hydrostatic Gravity Waves in a Stratified Shear Flow. Part II: Application to Downslope Surface Windstorms
Publisher: American Meteorological Society
Abstract: A model of continuous partial reflection of hydrostatic gravity waves, developed in Part I, is applied to the Klemp and Lilly model of downslope surface windstorms. It is shown how the magnitude and the location of the ...
Convection-Permitting Forecasts Initialized with Continuously Cycling Limited-Area 3DVAR, Ensemble Kalman Filter, and “Hybrid” Variational–Ensemble Data Assimilation Systems
Publisher: American Meteorological Society
Abstract: nalyses with 20-km horizontal grid spacing were produced from parallel continuously cycling three-dimensional variational (3DVAR), ensemble square root Kalman filter (EnSRF), and ?hybrid? variational?ensemble data assimilation ...
Simulation of Spatial Dependence in Daily Precipitation Using a Mixture of Generalized Chain-Dependent Processes at Multisites
Publisher: American Meteorological Society
Abstract: Recently, a single-site stochastic precipitation model called ?the mixture of generalized chain-dependent processes conditioned on a climate variable? was developed. The model can effectively eliminate overdispersion?that ...
Measures of Bulk and Grain Strain in Deformation Processes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study illustrates a method of measuring internal total strain based on the observation that networks of internal boundaries within a polycrystalline material deform locally in a manner ...
Strength of Composite Slabs
Publisher: American Society of Civil Engineers
Abstract: Most composite‐slab designs in the United States are based on the results of extensive testing programs. These programs result in the development of load tables that structural engineers use for the design of composite ...