Observations of energetic low frequency current fluctuations in the Charlie-Gibbs fracture zone
MetadataShow full item record
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.
Also published as: Journal of Marine Research 36 (1978): 725-734
Suggested CitationTechnical Report: Schmitz, William J., Hogg, Nelson G., "Observations of energetic low frequency current fluctuations in the Charlie-Gibbs fracture zone", 1979-02, DOI:10.1575/1912/10395, https://hdl.handle.net/1912/10395
Showing items related by title, author, creator and subject.
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, ...
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 ...
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 ...