A case study of a subsynoptic disturbance in a polar outbreak

Auteur :
OERLEMANS, J.

Description :
A subsynoptic disturbance, occurring in an outbreak of polar air over northwestern Europe, is studied by using routine observational data. The disturbance showed a characteristic length scale of about 150km, a time scale of 4hours, caused a surface pressure drop of only 1mb, but brought up to 20mm of precipitation in the coastal region of the Netherlands. The analysis suggests that the disturbance was a warm-core system driven by latent heat release and triggered by forced lifting along the coastline, which activated a weak trough filled with potentially unstable air. (JPB).


Type de document :
Article de périodique

Source :
Quarterly journal of the royal meteorological society London, 1980, vol. 106, n°. 448, p. 313-325, Références bibliographiques : 8réf.

Date :
1980