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Asymmetric impact of the North and South Pacific on the equator in a coupled climate model
Author(s) -
Yang H.,
Jiang H.,
Tan B.
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 - 10.1029/2004gl022195
Subject(s) - equator , pacific ocean , rossby wave , pacific decadal oscillation , climatology , oceanography , geology , north pacific high , climate model , climate change , latitude , geodesy
Relative contributions of the North and South Pacific to the equatorial ocean are estimated in a coupled climate model. Idealized experiments show that the South Pacific contributes 30–50% more than the North Pacific to the equatorial ocean temperature change, because the warming in the North Pacific can induce an additional cold Rossby wave at around 20°N that tends to block the warm effect from the central North Pacific, while the South Pacific influence can be easily convoyed to the equator through the interior pathway.