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RISOn Improving 4-km Mesoscale Model Simulations
Publisher: American Meteorological Society
Abstract: A previous study showed that use of analysis-nudging four-dimensional data assimilation (FDDA) and improved physics in the fifth-generation Pennsylvania State University?National Center for Atmospheric Research Mesoscale ...
A Shallow-Convection Parameterization for Mesoscale Models. Part I: Submodel Description and Preliminary Applications
Publisher: American Meteorological Society
Abstract: A shallow-convection parameterization suitable for both marine and continental regimes is developed for use in mesoscale models. The scheme is closely associated with boundary layer turbulence processes and can transition ...
A Shallow-Convection Parameterization for Mesoscale Models. Part II: Verification and Sensitivity Studies
Publisher: American Meteorological Society
Abstract: Formulations describing a new shallow-convection parameterization intended for mesoscale models have been described in a companion paper, Part I. In the present paper the convection scheme is tested and evaluated against ...
Ensemble Variance Calibration for Representing Meteorological Uncertainty for Atmospheric Transport and Dispersion Modeling
Publisher: American Meteorological Society
Abstract: In the event of the release of a dangerous atmospheric contaminant, an atmospheric transport and dispersion (ATD) model is often used to provide forecasts of the resulting contaminant dispersion affecting the population. ...
Evaluation of Interregional Transport Using the MM5–SCIPUFF System
Publisher: American Meteorological Society
Abstract: Improved understanding of transport issues and source?receptor relationships on the interregional scale is dependent on reducing the uncertainties in the ability to define complex three-dimensional wind fields evolving in ...
Investigation of Ensemble Variance as a Measure of True Forecast Variance
Publisher: American Meteorological Society
Abstract: he uncertainty in meteorological predictions is of interest for applications ranging from economic to recreational to public safety. One common method to estimate uncertainty is by using meteorological ensembles. These ...
Improving SCIPUFF Dispersion Forecasts with NWP Ensembles
Publisher: American Meteorological Society
Abstract: The relationships between atmospheric transport and dispersion (AT&D) plume uncertainty and uncertainties in the transporting wind fields are investigated using the Second-Order Closure, Integrated Puff (SCIPUFF) AT&D model ...
Application of the Weather Research and Forecasting Model for Air Quality Modeling in the San Francisco Bay Area
Publisher: American Meteorological Society
Abstract: he Weather Research and Forecasting (WRF) model is evaluated by conducting various sensitivity experiments over central California including the San Francisco Bay Area (SFBA), with the goal of establishing a WRF model ...
An Automated High-Resolution, Rapidly Relocatable Meteorological Nowcasting and Prediction System
Publisher: American Meteorological Society
Abstract: An automated, rapidly relocatable nowcasting and prediction system, whose cornerstone is the full-physics, nested-grid, nonhydrostatic fifth-generation Pennsylvania State University?National Center for Atmospheric Research ...
The Role of Unresolved Clouds on Short-Range Global Horizontal Irradiance Predictability
Publisher: American Meteorological Society
Abstract: he shortwave radiative impacts of unresolved cumulus clouds are investigated using 6-h ensemble simulations performed with the WRF-Solar Model and high-quality observations over the contiguous United States for a 1-yr ...