 |
| Titel |
Winter and summer blocking variability in the North Atlantic region – evidence from long-term observational and proxy data from southwestern Greenland |
| VerfasserIn |
N. Rimbu, G. Lohmann |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1814-9324
|
| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 7, no. 2 ; Nr. 7, no. 2 (2011-05-23), S.543-555 |
| Datensatznummer |
250004516
|
| Publikation (Nr.) |
 copernicus.org/cp-7-543-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| We investigate the interannual and decadal variability of the North Atlantic
atmospheric blocking frequency and distribution in connection with long-term
observational and proxy records from southwestern Greenland. It is shown that
warm (cold) conditions in southwestern Greenland during winter are related
with high (low) blocking activity in the Greenland-Scandinavian region. The
pattern of winter temperature-blocking variability is more complex than the
blocking pattern associated to the North Atlantic Oscillation (NAO). We find,
furthermore, that a North Atlantic blocking index is significantly correlated
with seasonally resolved stable isotope records from Greenland ice cores.
Both suggest a possible reconstruction of blocking variability in this
region. 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 interannual and
multidecadal variation of winter and summer blocking during past periods. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|