Now showing items 1-20 of 66

  • The adjustment of barotropic currents at the shelf break to a sharp bend in the shelf topography 

    Williams, William J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-02)
    During January-March, Scotian Shelf water has been observed to flow episodically from the southwestern Scotian Shelf directly across the Northeast Channel to Georges Bank. The possible factors that allow Scotian Shelf ...
  • An application of ocean wave-current refraction to the Gulf Stream using SEASAT SAR data 

    Byman, Michael W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1989-08)
    When ocean waves in deep water interact with a current, the direction of propagation and characteristics of the waves such as height and length are affected. Swell in the open ocean can undergo significant refraction as ...
  • Assimilation of altimeter data in a quasi-geostrophic model of the Gulf Stream system : a dynamical perspective 

    Capontondi, Antonietta (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1993-02)
    The dynamical aspects involved in the assimilation of altimeter data in a numerical ocean model have been investigated. The model used for this study is a quasi-geostrophic model of the Gulf Stream region. The data that ...
  • Atmospheric interactions with Gulf Stream Rings 

    Dewar, William K. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1982-10)
    Four different problems concerning Gulf Stream Rings are considered. The first deals with the particle trajectories of, and advection-diffusion by, a dynamic model of a Ring. It is found that the streaklines computed ...
  • Bottom currents and abyssal sedimentation processes south of Iceland 

    Shor, Alexander N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-10)
    An investigation was carried out to observe the geologic effects of steady bottom currents on sediments of East Katla Ridge on the southern insular rise of Iceland. Near-bottom southwest to west-flowing currents exceeded ...
  • Buoyancy-driven circulation in the Red Sea 

    Zhai, Ping (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2014-09)
    This thesis explores the buoyancy-driven circulation in the Red Sea, using a combination of observations, as well as numerical modeling and analytical method. The first part of the thesis investigates the formation ...
  • A comparison of cross-stream velocities and Gulf Stream translations utilizing in-situ and remotely-sensed data 

    Freise, Clark B. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-09)
    In previous Gulf Stream work (Hall and Bryden, 1985, Hall, 1985, 198GA, 198GB), a decomposition of multiple depth current records was developed which produced along- and cross-stream components. The cross-stream component ...
  • The design of an instrument to measure vertically averaged oceanic currents using geomagnetic electric fields 

    Poranski, Peter Frank (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1972-08)
    A bottom mounted electromagnetic current meter measures the vertically-averaged conductivity-weighted velocity. This measurement complements free-fall relative velocity profiles and is valuable for transport determination ...
  • 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 ...
  • Diapycnal advection by double diffusion and turbulence in the ocean 

    St. Laurent, Louis C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
    Observations of diapycnal mixing rates are examined and related to diapycnal advection for both double-diffusive and turbulent regimes. The role of double-diffusive mixing at the site of the North Atlantic Tracer ...
  • The dynamics and kinematics of the coastal boundary layer off Long Island 

    Pettigrew, Neal R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1980-12)
    Data from the COBOLT experiment, which investigated the first 12 km off Long Island's south shore, are analyzed and discussed. Moored current meter records indicate that the nearshore flow field is strongly polarized ...
  • The dynamics of bottom boundary currents in the ocean 

    Smith, Peter C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1973-09)
    This thesis presents an investigation of the dynamics of bottom boundary currents in the ocean. The major emphasis is to develop simple mathematical models in which various dynamical features of these complex geophysical ...
  • Dynamics of global ocean heat transport variability 

    Jayne, Steven R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-02)
    A state-of-the-art, high-resolution ocean general circulation model is used to estimate the time-dependent global ocean heat transport and investigate its dynamics. The north-south heat transport is the prime manifestation ...
  • The dynamics of mean circulation on the continental shelf 

    Shaw, Ping-Tung Peter (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1982-02)
    Mean long-isobath drift of the order 5 cm/sec has been observed on several continental shelves, e.g. in the Middle Atlantic Bight and in the Weddell Sea. A theoretical model is developed to explore the driving mechanism ...
  • Dynamics of nonlinear cross-equatorial flow in the deep ocean 

    Edwards, Christopher A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-12)
    The transformation of potential vorticity within and stability of nonlinear deep western boundary currents in an idealized tropical ocean are studied using a shallowwater model. Observational evidence indicates that the ...
  • Dynamics of the Antarctic circumpolar current : evidence for topographic effects from altimeter data and numerical model output 

    Gille, Sarah T. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1995-02)
    Geosat altimeter data and numerical model output are used to examine the circulation and dynamics of the Antarctic Circumpolar Current (ACC). The mean sea surface height across the ACC has been reconstructed from height ...
  • Dynamics of the equatorial undercurrent and its termination 

    Wacongne, Sophie H. C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-01)
    This study focuses on the zonal weakening, eastern termination and seasonal variations of the Atlantic equatorial undercurrent (EUC). The main and most original contribution of the dissertation is a detailed analysis ...
  • The East Greenland Coastal Current : its structure variability, and large-scale impact 

    Sutherland, David A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-02)
    The subtidal circulation of the southeast Greenland shelf is described using a set of highresolution hydrographic and velocity transects occupied in summer 2004. The main feature present is the East Greenland Coastal ...
  • Eddy forcing of the mean circulation in the western North Atlantic 

    Brown, Ellen Dunning (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1984-08)
    This thesis addresses several aspects of the problem of determining the effect of the low-frequency eddy variability on the mean circulation of the Western North Atlantic. A framework for this study is first established ...
  • Eddy generation at a convex corner by a coastal current in a rotating system 

    Klinger, Barry A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-03)
    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 ...