Observations of energetic low frequency current fluctuations in the Charlie-Gibbs fracture zone
Citable URI
https://hdl.handle.net/1912/10395DOI
10.1575/1912/10395Abstract
Relatively energetic low frequency fluctuations in horizontal currents are found to exist below
the thermocline in the northern trough of the Charlie-Gibbs Fracture Zone. For example,
deep eddy kinetic energy levels there are about twice as large as those observed at similar relative
depths in the MODE-I region. Eddy kinetic energies are about 2-10 times larger than mean
kinetic energies. The vertical distribution of eddy kinetic energy is frequency dependent, increasing
toward the thermocline for the longer time scales and intensifying toward the bottom
at higher frequencies. In addition to the expected mean westward motion of Norwegian Sea
Overflow Water through the northern trough of the fracture, rather consistent mean southward
flow is observed at a depth immediately above the overflow.
Description
Also published as: Journal of Marine
Research 36 (1978): 725-734
Collections
Suggested Citation
Schmitz, W. J., & Hogg, N. G. (1979). Observations of energetic low frequency current fluctuations in the Charlie-Gibbs fracture zone. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/10395Related items
Showing items related by title, author, creator and subject.
-
A crossroads of the Atlantic Meridional Overturning Circulation : the Charlie-Gibbs Fracture Zone data report August 2010 – June 2012
Furey, Heather H.; Trafford, Leah; Bower, Amy S. (Woods Hole Oceanographic Institution, 2014-08)This is the final data report of all mooring data collected by the Woods Hole Oceanographic Institution in 2010-2012 during the experiment A Crossroads of the Atlantic Meridional Overturning Circulation: The Charlie-Gibbs ... -
Turbulent mixing in a deep fracture zone on the Mid-Atlantic Ridge
Clément, Louis; Thurnherr, Andreas M.; St. Laurent, Louis C. (American Meteorological Society, 2017-07-13)Midocean ridge fracture zones channel bottom waters in the eastern Brazil Basin in regions of intensified deep mixing. The mechanisms responsible for the deep turbulent mixing inside the numerous midocean fracture zones, ... -
Iceland-Scotland Overflow Water transport variability through the Charlie-Gibbs Fracture Zone and the impact of the North Atlantic Current
Bower, Amy S.; Furey, Heather H. (John Wiley & Sons, 2017-09-01)The Charlie-Gibbs Fracture Zone (CGFZ), a deep and wide gap in the Mid-Atlantic Ridge near 52°N, is a gateway between the eastern and western subpolar regions for the Atlantic Meridional Overturning Circulation (AMOC). In ...