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Interdecadal variability generated by interactions between Pacific and Atlantic oceans
Author(s) -
Dima Mihai,
Stefan Sabina,
Dima Vasile,
Borsan Dorin
Publication year - 2001
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 - 10.1029/2001gl013613
Subject(s) - climatology , sea surface temperature , oceanography , pacific decadal oscillation , tropical atlantic , geology , mode (computer interface) , pacific ocean , environmental science , sea level , computer science , operating system
Recent studies suggest that, interannual, decadal, and quasibidecadal periodicities dominate global sea surface temperature and sea level pressure variability over past hundred years. In this study, we present evidence that the quasibidecadal mode of variability can be considered in a first order approximation as resulting from a linear interaction between the dominant modes of variability in the Tropical Pacific (associated with interannual variability) and North Atlantic ocean (associated with decadal variability). A two coupled delayed action oscillators model is proposed to qualitatively explain this result.