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Strong eddy compensation for the Gulf Stream heat transport
Author(s) -
Saenko Oleg A.
Publication year - 2015
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 - 10.1002/2015gl066111
Subject(s) - gulf stream , eddy , atmosphere (unit) , heat flux , geology , climatology , ocean heat content , environmental science , atmospheric sciences , heat transfer , ocean current , meteorology , turbulence , mechanics , geography , physics
Using a high‐resolution ocean model forced with high‐resolution atmospheric fields, a 5 year mean heat budget of the upper ocean in the Gulf Stream (GS) region is analyzed. The heat brought to the region with the mean flows along the GS path is 2–3 times larger than the heat loss to the atmosphere, with the difference being balanced by a strong cooling effect due to lateral eddy heat fluxes. However, over a broad area off the Grand Banks, the eddies warm the uppermost ocean layers, partly compensating for the loss of heat to the atmosphere. The upward eddy heat flux, which brings heat from the deeper ocean to the upper layers, is 30–80% of the surface heat loss.