Storm tracks and annular modes
نویسندگان
چکیده
منابع مشابه
Dynamics of Barotropic Storm Tracks
Longitudinal variations in the upper-tropospheric time-mean flow strongly modulate the structure and amplitude of upper-tropospheric eddies. This barotropic modulation is studied using simple models of wave propagation through zonally varying basic states that consist of contours separating regions of uniform barotropic potential vorticity. Such basic states represent in a simple manner the pot...
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The Northern Hemisphere storm tracks have maximum intensity over the Pacific and Atlantic basins; their intensity is reduced over the continents downstream. Here, simulations with an idealized aquaplanet general circulation model are used to demonstrate that even without continents, storm tracks have a self-determined longitudinal length scale. Their length is controlled primarily by the planet...
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The North Atlantic variability structure, storm tracks, and precipitation depending on the polar vortex strength K. Walter and H.-F. Graf 2 Max-Planck-Institute for Meteorology, Bundesstrasse 54, D-20146 Hamburg, Germany Centre for Atmospheric Science, University of Cambridge, Dept. Geography, Cambridge, CB2 3EN, UK Received: 10 June 2004 – Accepted: 29 July 2004 – Published: 5 October 2004 Cor...
متن کاملClimatology of Cyclones, Anticyclones and Storm Tracks: Revision of Concepts
This paper has the finality of describe climatology of extratropical cyclones, anticyclones and storm tracks for the NH and SH. There is a long history of studies on the characteristics of synoptic systems, beginning with classical work on mid-latitude cyclones. For the SH, analyses of pressure data provide extensive statistics of the climatology of synoptic systems. Interestingly, the anticycl...
متن کاملOn Symmetric and Asymmetric Buckling Modes of Functionally Graded Annular Plates under Mechanical and Thermal Loads
In the present article, buckling analysis of functionally graded annular thin and moderately thick plates under mechanical and thermal loads is investigated. The equilibrium and stability equations of the plate are obtained based on both classical and first order shear deformation plate theories. By using an analytical method, the coupled stability equations are converted to independent equatio...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2007
ISSN: 0094-8276
DOI: 10.1029/2007gl030436