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RISRole of the Low-Frequency Deformation Field on the Explosive Growth of Extratropical Cyclones at the Jet Exit. Part II: Baroclinic Critical Region
Publisher: American Meteorological Society
Abstract: Midlatitude cyclones tend to develop strongly in specific locations relative to the large-scale flow, such as jet-exit zones. Here, the approach developed in Part I that highlights the role of large-scale deformation in ...
Role of the Low-Frequency Deformation Field on the Explosive Growth of Extratropical Cyclones at the Jet Exit. Part I: Barotropic Critical Region
Publisher: American Meteorological Society
Abstract: By using new theoretical results on perturbation growth in spatially and temporally complex quasigeostrophic flows, this paper investigates the role of the large-scale deformation field on extratropical cyclones and ...
Consequences of the Geostrophic Momentum Approximation on Barotropic Instability
Publisher: American Meteorological Society
Abstract: A subsynoptic instability with dominant barotropic signature has been found to be a possible mechanism for the development of frontal waves. Linear semigeostrophic calculations of the growth rate of waves developing along ...
Is a Real Cyclogenesis Case Explained by Generalized Linear Baroclinic Instability?
Publisher: American Meteorological Society
Abstract: Midlatitude cyclogenesis is currently often explained as resulting from the baroclinic instability of a jet flow. The present formulation of the theory, essentially resulting from the deep revision performed by Farrell, ...