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A Simple Model for Mesoscale Effects of Topography on Surface Winds
Publisher: American Meteorological Society
Abstract: This paper describes a diagnostic, one-level, primitive equation model for computing mesoscale influences of orography, friction and heating on surface winds, given large-scale data from synoptic or prognostic charts. The ...
A Prognostic Model for the Surface Temperature, Height of the Atmospheric Boundary layer, and Surface Wind
Publisher: American Meteorological Society
Abstract: A prognostic one-dimensional bulk model of the atmospheric boundary layer is described for the surface temperature, height of the atmospheric boundary layer, and surface wind. Heat conduction into the ground is accounted ...
A Diagnostic Method for Computing the Surface Wind from the Geostrophic Wind Including the Effects of Baroclinity
Publisher: American Meteorological Society
Abstract: A diagnostic procedure to compute the surface wind from the geostrophic wind including the effects of baroclinity is designed and tested. Expressions are derived to calculate the similarity functions A and B for use when ...
On Computing Viscous Forces in Map Coordinates with a Variable Scale
Publisher: American Meteorological Society
Abstract: Equations are first derived in shape-preserving coordinates for the spatial derivatives of the unit vectors, the gradient and Laplacian of a scalar, the divergence and vorticity of a vector, the advective acceleration in ...
On Computing the Surface Horizontal Pressure Gradient over Elevated Terrain
Publisher: American Meteorological Society
Abstract: Methods are proposed for calculating the surface horizontal pressure gradient or geostrophic wind in a local area over elevated terrain from randomly spaced surface observations. These procedures avoid many of the problems ...
On the Dependence of Wind Variability on Surface Wind Speed, Richardson Number and Height Above Terrain
Publisher: American Meteorological Society
Abstract: Some results obtained from double-theodolite measurements of the wind variability near Shilo, Manitoba, are presented. Wind variability [σ(s,t)] is defined here as the standard vector deviation of the difference between ...
On the Influence of Released Latent Heat on Cyclone Development
Publisher: American Meteorological Society
Abstract: The influences of release of latent heat on the vertical motion and production of kinetic energy and low- level vorticity in a major winter cyclone over the central United States have been investigated. The vertical velocity ...
A Quasi-Geostrophic Numerical Model Incorporating Effects of Release of Latent Heat
Publisher: American Meteorological Society
Abstract: A quasi-geostrophic numerical model for predicting precipitation amounts and the heights of the 1000-, 850-, 700-, 500-, and 300-mb surfaces is described. The basic equations are the vorticity and omega equations. Influences ...