Abstract: We show that a bivane anemometer or other elevation angle sensing device records a nonzero mean angle when responding to cross-correlated fluctuations in a mean wind. Our analysis shows how this mean offset can be used to ...

Abstract: Second-order theory is formulated for a wave packet propagating in a stratified fluid, and the packet-scale flows in the system are examined. These large-scale flows originate from interactions between first-order field ...

Abstract: It has been suggested that the potential temperature of the tropical tropopause may be linked to the energy of air flowing into storms, and Previous studies have sought to correlate the subannual fluctuations of the two ...

Abstract: Small-scale (Kelvin-Helmholtz) shear instabilities usually display very little dispersion. However, investigations by Hazel reveal an anomalous modal structure when the length scales associated with the density and velocity ...

Abstract: Observations of a severe form of rainband, which is comprised of a line of strong but shallow convection, suggest that the environment into which it moves is nearly neutrally stratified with respect to moist convection. A ...

Abstract: The thunderstorm solitary gust or bow wave, observed by Doviak and Ge, is examined from the viewpoint of boundary layer wave theory. It is concluded that all its well defined characteristics are consistently modeled as a ...

Abstract: Upscale scattering of Kelvin-Helmholtz waves to gravity shear waves involves the nonlinear interaction of two Kelvin-Helmholtz waves with wavenumbers k and k? to produce a wave with wavenumber k?k?. Calculations show that ...

Abstract: The stabilities of two model tropospheric jets are compared. The first jet is a simple, smooth, idealized profile governed by a single scale length of tropospheric dimensions. The second jet takes the first model flow and ...

Abstract: Pre-storm conditions are often characterized by an atmosphere in the presence of rather strong wind shears and a temperature inversion. The latter acts as a lid for moisture in the boundary layer. In this paper we discuss ...

Abstract: We present the results of an analytical and numerical calculation of the interaction between an internal gravity wave and a wave-induced turbulence. The initial atmospheric state, assumed horizontally homogeneous, is ...