Original scientific paper

Some properties of hydrodynamic instability in a quasi-geostrophic atmosphere

Marta Mann ; Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia
Nadežda Šinik ; Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia

Abstract

The baroclinic hydrodynamic instability of zonal flow has been studied by a two-level model which takes into account the influence of a barotropic, nonlinear shear in a quasigeostrophic atmosphere. There are regions where a horizontal wind shear supports the baroclinic amplification of an unstable wave. It can be found near the inflexional part of the zonal flow meridional profile.

Keywords

baroclinic hydrodynamic instability; model; wind shear

Hrčak ID:

20794

URI

https://hrcak.srce.hr/20794

Publication date:

1.12.1990.

Article data in other languages: croatian

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