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A coupled dynamic-thermodynamic model of an ice-ocean system in the marginal ice zoneThermodynamics are incorporated into a coupled ice-ocean model in order to investigate wind-driven ice-ocean processes in the marginal zone. Upswelling at the ice edge which is generated by the difference in the ice-air and air-water surface stresses is found to give rise to a strong entrainment by drawing the pycnocline closer to the surface. Entrainment is shown to be negligible outside the areas affected by the ice edge upswelling. If cooling at the top is included in the model, the heat and salt exchanges are further enhanced in the upswelling areas. It is noted that new ice formation occurs in the region not affected by ice edge upswelling, and it is suggested that the high-salinity mixed layer regions (with a scale of a few Rossby radii of deformation) will overturn due to cooling, possibly contributing to the formation of deep water.
Document ID
19870066726
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hakkinen, Sirpa
(NASA Goddard Space Flight Center; National Research Council Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
August 15, 1987
Publication Information
Publication: Journal of Geophysical Research
Volume: 90
ISSN: 0148-0227
Subject Category
Oceanography
Accession Number
87A54000
Distribution Limits
Public
Copyright
Other

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