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The impacts of the Luni‐Solar oscillation on the Arctic oscillation
Author(s) -
Ramos da Silva Renato,
Avissar Roni
Publication year - 2005
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2005gl023418
Subject(s) - arctic oscillation , northern hemisphere , oscillation (cell signaling) , predictability , climatology , latitude , arctic , atmospheric sciences , the arctic , environmental science , southern hemisphere , geology , amplitude , physics , oceanography , geodesy , chemistry , biochemistry , quantum mechanics
The Arctic Oscillation (AO) has a major impact on climate variability in the extra tropical regions of the Northern Hemisphere. In this study, we show that specific alignments between the Sun, the Moon and the Earth known as the Luni‐Solar Oscillation (LSO) that occur at frequencies of nearly 9 and 18 years are unambiguously correlated with the AO since the mid‐1960's. The occurrence of the LSO peaks is predictable and, as a result, it improves climate predictability. Furthermore, we hypothesize that the recent observed increase in the AO amplitude maybe due to ice melting in the Arctic and SST increases at northern latitudes combined with the recent LSO peaks.