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Ventilation of North Pacific Intermediate Waters - The role of the Alaskan GyreHydrographic data, tritium data, and potential vorticity calculations suggest that although North Pacific Intermediate Water is formed in the northwest, the Alaskan Gyre might be an additional ventilation site. The proposed ventilation is quantified by a vertical column tritium inventory, which indicates an excess of 0.08 kg of tritium in the Alaskan Gyre. An evaluation of the energy stored in the water column and of wind and buoyancy forcing shows that during winter conditions enough energy can be pumped into the system to force 26.80 sigma(theta) to outcrop in the Alaskan Gyre. Model results suggest that relatively limited outcrops in time and space (tens of days and several hundred kilometers in diameter) can account for the excess tritium.
Document ID
19910068667
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Van Scoy, Kim A.
(Miami Univ. FL, United States)
Olson, Donald B.
(Miami Univ. FL, United States)
Fine, Rana A.
(Miami, University FL, United States)
Date Acquired
August 14, 2013
Publication Date
September 15, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Oceanography
Accession Number
91A53290
Funding Number(s)
CONTRACT_GRANT: NSF OCE-86-08125
CONTRACT_GRANT: NSF OCE-90-02484
CONTRACT_GRANT: NAGW-2073
Distribution Limits
Public
Copyright
Other

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