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RISOBJECTIVE ANALYSIS OF A TWO-DIMENSIONAL DATA FIELD BY THE CUBIC SPLINE TECHNIQUE
Publisher: American Meteorological Society
Abstract: A procedure to use the spline interpolation technique on an arbitrarily prescribed two-dimensional data field is described. For using this technique, one must obtain an initial approximation to the data at the grid points. ...
A One-Dimensional Entraining/Detraining Plume Model and Its Application in Convective Parameterization
Publisher: American Meteorological Society
Abstract: A new one-dimensional cloud model, specifically designed for application in mesoscale convective parameterization schemes (CPSs), is introduced. The model is unique in its representation of environmental entrainment and ...
Numerical Simulation of the Mesa-β Scale Structure and Evolution of the 1977 Johnstown Flood. Part III. Internal Gravity Waves and the Squall Line
Publisher: American Meteorological Society
Abstract: The interaction between internal gravity waves and a squall line that developed early in the evolution of the 1977 Johnston flood event is studied based on available surface observations and a three-dimensional model ...
A Study of the Development of Extratropical Cyclones with an Analytic Model. Part I: The Effects of Stratospheric Structure
Publisher: American Meteorological Society
Abstract: A new five-layer, quasigeostrophic model of baroclinic development is utilized to examine the initial-value problem sensitivity of extratropical cyclogenesis to the variation of stratospheric thermal and geopotential ...
Numerical Simulation of the Meso-β Scale Structure and Evolution of the 1977 Johnstown Flood. Part II: Inertially Stable Warm-Core Vortex and the Mesoscale Convective Complex
Publisher: American Meteorological Society
Abstract: A mesoscale warm-core vortex associated with the mesoscale convective complex (MCC) that produced the 1977 Johnstown flood is examined using a three-dimensional nested-grid model simulation of the flood episode. In the ...
An Analytic Five-Layer Quasigeostrophic Model for Initial-Value Problems
Publisher: American Meteorological Society
Abstract: A five-layer analytic model of quasigeostrophic flow is developed. The model provides exact analytic solutions to the nonlinear quasigeostrophic omega and vorticity equations for various atmospheric temperature and ...
Diabatically Driven Discrete Propagation of Surface Fronts: A Numerical Analysis
Publisher: American Meteorological Society
Abstract: Discrete frontal propagation has been identified as a process whereby a surface front discontinuously moves forward, without evidence of frontal passage across a mesoscale region. Numerical simulations are employed to ...
Discrete Propagation of Surface Fronts in a Convective Environment: Observations and Theory
Publisher: American Meteorological Society
Abstract: A case example demonstrating that surface fronts can propagate in a discrete manner is presented. The event occurred as a cold front encountered a mesoscale area of surface-based convectively generated cold air over the ...
Improving Quantitative Precipitation Forecasts in the Warm Season: A USWRP Research and Development Strategy
Publisher: American Meteorological Society
Abstract: Warm-season quantitative precipitation forecasts (QPFs) are the poorest performance area of forecast systems worldwide. They stubbornly fall further behind while other aspects of weather prediction steadily improve. Unless ...