Abstract: A series of idealized nonlinear life cycle experiments is performed to compare changes in life cycle behavior caused by upper-level and near-surface meridional shear of the initial zonal wind. It is shown that both the ...

Abstract: It is suggested here that the zonal flow vacillation of the Southern Hemisphere is caused by a mutual interaction between the barotropic shear of the zonal flow and the evolution of baroclinic eddies during the later stages ...

Abstract: The method of time series analysis is used to study rawinsonde data in middle latitudes. The spectra reveal baroclinically unstable traveling waves with a preferred period of four to five days and a large amount of variance ...

Abstract: No abstract available.

Abstract: An eigenvalue analysis of the nondivergent barotropic model on a sphere and an initial value analysis of a baroclinic, quasi-geostrophic model on a sphere are used to study barotropically unstable zonal flows similar to ...

Abstract: The use of satellite data of constructing synoptic analyses is appropriate in the stratosphere where the most important disturbances are very large scale and slowly moving. Nimbus 5 data are applied to a study of the ...

Abstract: The heat, momentum and energy budgets of the region between 100 and 0.2 mb are investigated for the period 1 July to 6 September, 1973, using data derived from the Nimbus 5 meteorological satellite. The heat balance indicates ...

Abstract: No abstract available.

Abstract: An attempt is made to relate tracer transport in the stratosphere to the requirements of atmospheric dynamics. The relationships are illustrated by considering the observed transport and budget of potential vorticity in ...

Abstract: It is demonstrated that realistic zonal mean states on a sphere are unstable to perturbations of zonal wavenumbers 2 and 3. Moreover, these waves have significant growth rates and are of such a narrow meridional scale that ...