Inicio  /  Atmósfera  /  Vol: 15 Núm: 1 Par: 0 (2002)  /  Artículo
ARTÍCULO
TITULO

An explosive cyclogenesis over land

N. POSSIA    

Resumen

In this paper, an analytical study of an explosive cyclogenesis that occurred in northeastern Argentina on 11-12 November 1989, is carried out. European Centre for Medium Range Weather Forecasts Analysis data are used to compute the terms of the atmospheric motion governing equations in order to determine the triggering mechanisms of this event. This cyclogenesis is initiated by classical processes such as the advection of vorticity and divergence in the upper troposphere. The diabatic mechanisms rapidly associate to these processes, generating an intense cyclonic potential vorticity in low levels and depleting it in upper levels. The major development occurs when the presence of cyclonic vorticity in upper levels continues in spite of the mechanisms tending to weaken it.

 Artículos similares

       
 
Sien Liu, Qinghua Ye, Shiqiang Wu and Marcel J. F. Stive    
Wind induced hydrodynamic circulations play significant roles in the transport and mixing process of pollutants and nutrients in large shallow lakes, but they have been usually overlooked, while environmental, biological, and ecological aspects of eutrop... ver más
Revista: Water

 
Maximo Garcia-Jove Navarro,Julio Sheinbaum,Julien Jouanno     Pág. 235 - 265
The dynamics of the Loop Current (LC) and the release of its anticyclonic eddy (Loop Current eddy, LCE) are some of the most important features of the circulation in the Gulf of Mexico (GoM) and key aspects to gauge the validity of numerical simulations.... ver más
Revista: Atmósfera

 
LI GUO-QUING    
The present work consists of two parts. In the first, an experiment is described to study the topographic forcing on the baroclinic flow. By comparison of the experiments with and without topography, the role of topography in the formation of the flo... ver más
Revista: Atmósfera