On the temporally varying northward penetration of mediterranean overflow water and eastward penetration of Labrador sea water
Historical hydrographic data in the eastern North Atlantic are used to suggest a connection between the northward penetration of Mediterranean Overflow Water (MOW) and the location of the subpolar front, the latter of which is shown to vary with the North Atlantic Oscillation (NAO). During persistent high-NAO periods, when the subpolar front moves eastward, waters in the subpolar gyre essentially block the northward-flowing MOW, preventing its entry into the subpolar gyre. Conversely, during low NAO periods, the subpolar front moves westward, allowing MOW to penetrate past Porcupine Bank into the subpolar gyre. The impacts of an intermittent penetration of MOW into the subpolar gyre, including the possible effect on water mass transformations, remain to be investigated. © 2008 American Meteorological Society.
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- Oceanography
- 4015 Maritime engineering
- 3708 Oceanography
- 0911 Maritime Engineering
- 0405 Oceanography
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Oceanography
- 4015 Maritime engineering
- 3708 Oceanography
- 0911 Maritime Engineering
- 0405 Oceanography