Publication Date:
2009-11-13
Description:
We investigate the relationship between the North Atlantic atmospheric blocking and winter and summer temperature variability as derived from long-term observational and proxy records from southwestern Greenland. It is shown that during boreal winter warm (cold) conditions in southwestern Greenland are related with high (low) blocking activity in the Greenland-Scandinavian region. An index for the North Atlantic blocking is significantly correlated with an oxygen isotope record from Greenland ice cores suggesting a possible reconstruction of blocking variability in this region during past millennium. During summer, high (low) blocking activity in the Euro-Atlantic region is associated with cold (warm) conditions in southwestern Greenland. We conclude that historical temperature records as well as proxy data from Greenland can be used to obtain information related to multidecadal variation of summer blocking during past periods.
Print ISSN:
1814-9340
Electronic ISSN:
1814-9359
Topics:
Geosciences