Abstract: AbstractInvestigations of tornadogenesis in supercells attempt to find the origin of the tornado?s large vorticity by determining vorticity generation and amplification along trajectories that enter the tornado from a ...

Abstract: Hoskins, Draghici, and others have shown that the Q vector is an important quantity in quasi-geostrophic (QG) theory for the diagnosis of ageostrophic circulations. In this paper, a vorticity dynamics perspective is used ...

Abstract: The problem of weakly stratified, weakly sheared flow over (or under) obstacles is solved approximately by using a Lagrangian approach that obtains solutions on isentropic or Bernoulli surfaces and hence reveals the vortex ...

Abstract: An exact solution of the primitive equations (PEs) and the corresponding exact solutions of the alternative balance (AB), geostrophic momentum (GM), and quasigeostrophic (QG) equations are presented. The PE solution ...

Abstract: ormulas in an Eulerian framework are presented for the absolute velocity and vorticity of individual parcels in inviscid isentropic flow. The analysis is performed in a rectangular Cartesian rotating coordinate system. The ...

Abstract: Given wind data from three noncollinear observing stations, divergence and vorticity can be computed very efficiently by fitting a linear velocity field to the observed wind components. The four wind gradients and the four ...

Abstract: A new technique for computing the wet-bulb potential temperature of a parcel and its temperature after pseudoadiabatic ascent or descent to a new pressure level is presented. It is based on inverting Bolton?s most accurate ...

Abstract: Several new formulas for pseudoadiabatic equivalent potential temperature (EPT) are devised and compared to previous ones. The maximum errors of all the formulas are determined from calculations on a dense grid of points ...

Abstract: Linear (small amplitude) theory of shallow, inviscid, isentropic convection in a dry, unstably stratified, nonrotating atmosphere is used to investigate the rotational characteristics of an isolated, incipient convective ...