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Static Stability—An Update
Publisher: American Meteorological Society
Abstract: Static stability should not be evaluated from the local lapse rate. There is a growing body of observations, such as within portions of mixed layers and forest canopies, showing that the whole sounding should be considered ...
Transilient Turbulence Theory. Part I: The Concept of Eddy-Mixing across Finite Distances
Publisher: American Meteorological Society
Abstract: A first-order turbulence theory is developed that describes eddy-like mixing. Named transilient theory after a Latin word meaning ?leap across? this approach models the turbulent mixing between arrays of points separated ...
Integral Scales for the Nocturnal Boundary Layer. Part II: Heat Budget, Transport and Energy Implications
Publisher: American Meteorological Society
Abstract: In Part I, external forcings such as pressure gradient, terrain roughness and imposed cooling were used to forecast the thickness and strength of an exponentially-shaped (ES) nocturnal boundary layer (NBL) temperature ...
A Convective Transport Theory for Surface Fluxes
Publisher: American Meteorological Society
Abstract: For a boundary layer in free convection where turbulent thermal structures communicate information between the surface and the interior of the mixed layer, it is hypothesized that the surface momentum flux can be parameterized ...
Integral Scales for the Nocturnal Boundary Layer. Part 1: Empirical Depth Relationships
Publisher: American Meteorological Society
Abstract: The stable-layer thickness h and near-surface potential temperature strength ??s, of the nocturnal boundary layer (NBL) are shown to have a ?background? square-root of time dependence. Superimposed upon this background are ...
Transilient Turbulence Theory. Part III: Bulk Dispersion Rate and Numerical Stability
Publisher: American Meteorological Society
Abstract: Even though a continuum of mixing parameters ?(t, z, ?) is used in transilient turbulence theory to describe the effects of many superimposed eddy sizes (?) on the mean field at height z, the overall bulk dispersive rate ...
Inversion Rise Model Based on Penetrative Convection
Publisher: American Meteorological Society
Abstract: A mathematical model to describe the height changes and other characteristics of an inversion base under the influence of surface convection and general subsidence is developed. Inversion interface dynamics and entrainment ...
Internal Gravity Waves Generated by Penetrative Convection
Publisher: American Meteorological Society
Abstract: Penetrative convection is modeled by a series of idealized disturbances at the base of an atmospheric temperature inversion. Internal gravity waves excited in the inversion by the disturbances are theoretically found to ...