Eddy generation at a convex corner by a coastal current in a rotating system
Klinger, Barry A.
MetadataShow full item record
Rotating baroclinic and barotropic boundary currents flowing around a corner in the laboratory were studied in order to discover the circumstances under which eddies were produced at the corner. Such flows are reminiscent of oceanic coastal flows around capes. When the baroclinic currents, which consisted of surface flows bounded by a density front, encountered a sharp corner, immediately downstream of the corner an anticyclone grew in the surface layer for an angle of greater than 40 degrees. Varying the initial condition of the flow or the depth of the lower layer did not noticeably affect the gyre's properties except for its growth speed, which was greater when the lower layer was shallower. The barotropic currents were pumped along a sloping bottom, and also formed anticyclonic gyres which quickly attained an approximately steady state. For a given topography, the size of the gyre was proportional to the inertial radius u/f. Volume flux calculations based on the surface velocity revealed vertical shear which increased with gyre size. Hydraulic models were also applied to flow around gently curving topography to determine the critical separation curvature as a function of upstream parameters.
Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution March 1992
Suggested CitationThesis: Klinger, Barry A., "Eddy generation at a convex corner by a coastal current in a rotating system", 1992-03, DOI:10.1575/1912/5486, https://hdl.handle.net/1912/5486
Showing items related by title, author, creator and subject.
Development and application of a field instrumentation system for the investigation of surf zone hydrodynamics Greer, Matthew Noble (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-02)The development and application of an autonomous field instrumentation system consisting of four current meters and four wave gauges, along with a field monitor and digital recorder, is documented. The flow sensors are ...
Von Arx, William S. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1950-03)During the past four years a deliberate effort has been made at the Woods Hole Oceanographic Institution to devise methods of kinematic observation generally suited to the needs of oceanographers. One result of this work, ...
SOFAR float trajectories from an experiment to measure the Atlantic cross equatorial flow (1989-1990) Richardson, Philip L.; Zemanovic, Marguerite E.; Wooding, Christine M.; Schmitz, William J.; Price, James F. (Woods Hole Oceanographic Institution, 1992-08)Neutrally buoyant SOFAR floats at nominal depths of 800, 1800, and 3300 m were tracked for 21 months in the vicinity of western boundary currents near 6N and at several sites in the Atlantic near 11N and along the equator. ...