Abstract: The mixing of mass and momentum induced by the full life cycle of stratified shear instability is considered. In particular, the nonlinear numerical simulation of a stratified shear layer that is unstable to Kelvin?Helmholtz ...

Abstract: The forcing of large-scale internal gravity waves by shear-unstable stratified free shear layers is investigated. The gravity wave forcing mechanism considered arises from the nonlinear interaction of unstable modes of ...

Abstract: Recently reported Doppler lidar observations of the downslope component of flow velocity made during the occurrence of a mountain windstorm at Boulder, Colorado, have established that such storms are characterized by an ...

Abstract: The dynamics of stratified shear flow over localized topography in two spatial dimensions is investigated through analysis of a sequence of nonlinear numerical simulations. The existence of a critical level for all stationary ...

Abstract: The flow configurations that obtain in several severe downslope windstorm events generated over isolated topography are studied using a two-dimensional nonlinear anelastic model. A new high resolution simulation of the 11 ...

Abstract: Through direct numerical simulation, the instability of Long's exact finite-amplitude steady-state solution to the problem of stratified flow over topography and the subsequent evolution towards severe downslope windstorm ...

Abstract: An analysis of severe downslope windstorm evolution, from flow conditions initially described by Long's stationary solution, is considered through the application of finite-amplitude wave-activity diagnostics. Such quantities ...

Abstract: Finite-amplitude wave-activity diagnostics characteristic of the steady-state flow of a stratified Boussinesq fluid over localized topography in two spatial dimensions are considered. In particular, analytic expressions ...

Abstract: Exact, finite-amplitude, local wave-activity conservation laws are derived for disturbances to steady flows in the context of the two-dimensional anelastic equations. The conservation laws are expressed entirely in terms ...

Abstract: new approach of coordinated global and regional climate modeling is presented. It is applied to the Canadian Centre for Climate Modelling and Analysis Regional Climate Model (CanRCM4) and its parent global climate model ...