Zonal index variations, 1899-1992: links to air temperature in Southern Scandinavia

Auteurs :
JÖNSSON, J.
BÄRRING, L.

Description :
Monthly zonal indices (ZI:s) from January 1899 to August 1992 in a North Atlantic area (40°W-5°W) and a north European area (5°E-40°E) are analysed. Time series analysis show that the ZI:s for each area does not show the same evolutionary trends and that any distinct periods are hard to identify, except for a phase with low ZI for winters over the North Atlantic area during 1955-70. The correlation between ZI and temperature is shown to vary over time (especially for spring and autumn) indicating that the relationship between the strength of the zonal flow and temperature signal is not consistent.


Type de document :
Article de périodique

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 1994, vol. 76, n°. 4, p. 207-219, Collation : Illustration, Références bibliographiques : 46 ref.

Date :
1994

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi