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 ...

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 ...

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 ...

Abstract: Using quasi-geostrophic theory, equations are derived separating from other factors the contribution of release of latent heat to changes in the available potential energy. A synoptic case study of a major winter cyclone ...

Abstract: A simple relationship is obtained between pressure changes associated with friction and the geostrophic drag coefficient. From this, the imbalance between frictionally induced mass inflow and outflow is shown to be one or ...

Abstract: A simple method of computing longwave radiative cooling in the troposphere associated with water vapor is described. The procedure may readily be incorporated into a tropospheric numerical prediction model. Radiation from ...

Abstract: An eight-level primitive equation model has been developed incorporating orography, large-scale release of latent heat, longwave radiation, and surface and internal friction. The clouds and moisture patterns used in the ...

Abstract: Numerical models have been designed to compute carbon monoxide concentrations in the vicinity of a plane highway and a depressed highway in Toronto. The non-steady two-dimensional diffusion equation is integrated in time ...

Abstract: Numerical integrations with a 5-level quasi-geostrophic model incorporating effects of released latent heat were carried out for three cases of winter cyclogenesis. For purposes of comparison, calculations were also performed ...

Abstract: A form of the thermodynamic equation with variable static stability and ageostrophic advection is derived. The effects of these two terms are then computed for four synoptic cases. Whereas the two influences tend to cancel ...