On the temporally varying northward penetration of mediterranean overflow water and eastward penetration of Labrador sea water


Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Lozier, MS; Stewart, NM

Published Date

  • September 1, 2008

Published In

Volume / Issue

  • 38 / 9

Start / End Page

  • 2097 - 2103

International Standard Serial Number (ISSN)

  • 0022-3670

Digital Object Identifier (DOI)

  • 10.1175/2008JPO3908.1

Citation Source

  • Scopus