ISSN:
0992-7689
Keywords:
Meteorology and atmospheric dynamics (climatology; ocean-atmosphere interactions)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The North Atlantic Oscillation (NAO) and the Southern Oscillation (SO) are compared from the standpoint of a possible common temporal scale of oscillation. To do this a cross-spectrum of the temporal series of NAO and SO indices was determined, finding a significant common oscillation of 6/8 years. To assure this finding, both series were decomposed in their main oscillations using singular spectrum analysis (SSA). Resulting reconstructed series of 6/8 years’ oscillation were then cross-correlated without and with pre-whitened, the latter being significant. The main conclusion is a possible relationship between a common oscillation of 6/8 years that represents about 20% of the SO variance and about 25% of the NAO variance.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s00585-000-0247-z
Permalink