(Article of periodic en Anglais - 2005)

Document title

Comparison of blocking versus non-blocking using the local energetics of kinetic energy divided in vertical mean and sheared flows

Authors(s) and Affiliation(s)



The AA. compared the composite fields of typical cases for blocking and non-blocking, which where selected using objective thresholds. The results of this study demonstrate the obvious difference in mechanical energy flux between the blocking and the non-blocking about 1.5 days after the onset time. It is suggested that the convergence of mechanical energy flux around the eastern flank of the ridge is the necessary condition for the blocking formation. In addition, there is a significant convergence of mechanical energy flux around the upstream jet at 4 days before the onset. This may be the precursor signal of the formation of blocking


Article of periodic

published at : Science reports of the Institute of Geoscience, University of Tsukuba. Section A : Geographical sciences / ISSN 0388-6174

Editor : University of Tsukuba, Institute of Geoscience, Tsukuba - JAPON (1980- 2005)

Millesime : 2005, vol. 26 [pp. 13-25]

Bibliographic references : 26 ref.

Collation : Illustration ;




Laboratoire INTERGEO - Paris

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2006.
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