Abstract: A potential vorticity theorem and its two summary statements published by Haynes and McIntyre are challenged conceptually by equations, discussions and examples. The apparent simplification proposed by the authors to convert ...

Abstract: An objective method for deriving the components of a generalized transport tensor for a two-dimensional model is presented. The method uses representative meridional and vertical velocities and thermodynamic scalars at a ...

Abstract: Vertical cross sections of potential vorticity, computed and contoured by band, and hemispheric distributions of potential vorticity, computed and contoured by machine, are compared to both discrete and continuous measurements ...

Abstract: Vertical and horizontal deviations between an air trajectory and isobaric and isentropic trajectories are presented in a convenient form for order-of-magnitude comparisons and interpretation. Also, an objective method for ...

Abstract: The mountain lee-wave problem is solved for a steady-state linearized model yielding both real and complex resonance modes. Filters applied to the wind and potential temperature determine the mean conditions and the number ...

Abstract: The thermal structure of the troposphere and lower stratosphere during the movement eastward of several Pacific troughs is examined primarily from the standpoint of the distribution of baroclinity within a vertical plane ...

Abstract: The most striking shortcomings of previous 1000-mb. forecast models have been over-intensification of pressure systems, especially anticyclones, and inferior predictions in and near mountains. In this article a graphical-numerical ...