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How does Arctic summer wind modulate sea ice‐ocean heat balance in the Canada Basin?
Author(s) -
Watanabe Eiji,
Ogi Masayo
Publication year - 2013
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/grl.50363
Subject(s) - sea ice , arctic ice pack , drift ice , sea ice thickness , climatology , antarctic sea ice , upwelling , geology , environmental science , arctic sea ice decline , cryosphere , canada basin , oceanography , heat flux , arctic , sea ice concentration , fast ice , heat transfer , thermodynamics , physics
The impacts of Arctic summer wind on ice‐ocean heat processes in the sea ice reduction zone were investigated using a pan‐Arctic ice‐ocean model. The interannual simulation demonstrated event‐like sea ice melting because of enhanced solar radiation input and upward ocean heat transfer in the Canada Basin area. Both factors were derived from mechanical ice divergence under cyclonic wind stress. Atmospheric heat penetration into the newly formed open leads was estimated to be a primary contributor to sea ice lateral/bottom melting. The vertical ocean heat flux associated with wind‐driven upwelling/mixing was the secondary factor on a monthly time scale. The modeled interannual variability indicated that the relative role of internal ocean dynamics in sea ice variability was greater under cyclonic wind patterns compared with anticyclonic wind conditions.