Now showing items 497-516 of 846

  • Mixing and dynamics of the Mediterranean outflow 

    Baringer, Molly O. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1993-10)
    Hydrographic and expendable current profiler (XCP) data taken during the Gulf of Cadiz Expedition in September 1988 are analyzed to diagnose the mixing and dynamics of the Mediterranean outflow. The overall structure of ...
  • Mixing and general circulation dynamics : theory and observations 

    Tziperman, Eli (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1987-02)
    This thesis studies the role of cross-isopycnal mixing in general circulation dynamics, from both the theoretical and observational points of view. The first two chapters discuss some theoretical aspects of cross-isopycnal ...
  • Mixing in the North Atlantic Tracer Release Experiment : observations and numerical simulations of Lagrangian particles and passive tracer 

    Sundermeyer, Miles A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1995-09)
    Mixing and stirring of passive tracer and Lagrangian particles in the open ocean was studied through comparison of observations from the North Atlantic Tracer Release Experiment, a numerical model, and existing theory. ...
  • Mixing processes and hydraulic control in a highly stratified estuary 

    MacDonald, Daniel G. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-02)
    This thesis utilizes field data from the Fraser River Estuary, a highly stratified system located in southwestern British Columbia, Canada, to investigate the nature of mixing processes in a highly stratified environment, ...
  • Modal analysis of vertical array receptions for the Heard Island Feasibility Test 

    Sperry, Brian J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-05)
    During the 1991 Heard Island Feasibility Test, a vertical hydrophone array deployed off Monterey, CA, recorded transmissions from a low-frequency acoustic source nearly 18,000 km away. By determining the modal structure ...
  • A modal/WKB inversion method for determining sound speed profiles in the ocean and ocean bottom 

    Casey, Kevin D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-06)
    Two approaches to determining the ocean sound speed profile using measured acoustic modal eigenvalues are examined. Both methods use measured eigenvalues and mode dependent assumed values of the WKB phase integral as ...
  • A model of a Mediterranean salt lens in external shear 

    Walsh, David (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-04)
    A pair of simple models representing the interaction of a continuously stratified f-plane quasigeostrophic lens with a uniform external shear flow is examined. The study is motivated by the desire to understand the ...
  • Model of PAH and PCB bioaccumulation in Mya arenaria and application for site assessment in conjunction with sediment quality screening criteria 

    Levine, Rachel H. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-06)
    A review of six methods for deriving sediment quality criteria SQC was conducted. Each approach was analyzed according to cost, difficulty, applicability and reliability. Results of this analysis led to the recommendation ...
  • A model of the equatorial deep jets and the role of the horizontal Coriolis parameter 

    Zhang, Xiaoming (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1991-01)
    This thesis reviews observational and theoretical work on the equatorial deep jets and work related to the study of the role of the horizontal Coriolis parameter. Most existing analytical models interpret the equatorial ...
  • Modeling a 300 kHz bathymetric sonar system 

    Malmquist, Kenneth A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-09)
    The Deep Submergence Laboratory has developed a family of calibrated high frequency bathymetric sonar systems for underwater survey. It is useful to have a detailed mathematical description of these systems to assist in ...
  • Modeling and control of an autonomous underwater vehicle with combined foil/thruster actuators 

    Jakuba, Michael V. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-02)
    The Sentry AUV represents a radical departure from conventional AUV design, particularly with respect to actuation. The vehicle's combined foil/thruster actuators have the potential to produce a vehicle both maneuverable ...
  • Modeling and frequency tracking of marine mammal whistle calls 

    Severson, Jared (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-02)
    Marine mammal whistle calls present an attractive medium for covert underwater communications. High quality models of the whistle calls are needed in order to synthesize natural-sounding whistles with embedded information. ...
  • Modeling convection in the Greenland Sea 

    Bhushan, Vikas (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1998-09)
    A detailed examination of the development of a deep convection event observed in the Greenland Sea in 1988-89 is carried out through a combination of modeling, scale estimates, and data analysis. We develop a prognostic ...
  • Modeling of monostatic bottom backscattering from three-dimensional volume inhomogeneities and comparisons with experimental data 

    Li, Dan (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-09)
    Acoustic propagation in the ocean inevitably encounters inhomogeneities of various types, which give rise to scattering. Acoustic scattering from rough water /bottom interfaces comprised of exposed rocks and sea mountains ...
  • Modeling the processes affecting larval haddock (Melanogrammus aeglefinus) survival on Georges Bank 

    Petrik, Colleen M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-02)
    The ultimate goal of early life studies of fish over the past century has been to better understand recruitment variability. Recruitment is the single most important natural event controlling year-class strength and ...
  • Modeling wind forcing in phase resolving simulation of nonlinear wind waves 

    Kalmikov, Alexander G. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-02)
    Wind waves in the ocean are a product of complex interaction of turbulent air flow with gravity driven water surface. The coupling is strong and the waves are non-stationary, irregular and highly nonlinear, which restricts ...
  • Modelling bottom stress in depth-averaged flows 

    Jenter, Harry L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1989-05)
    The relationship between depth-averaged velocity and bottom stress for wind-driven flow in unstratified coastal waters is examined here. The adequacy of traditional linear and quadratic drag laws is addressed by comparison ...
  • The modern and glacial thermoclines along the Bahama Banks 

    Slowey, Niall C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1990-09)
    As a primary feature of ocean circulation and a key component of the global carbon cycle, changes in the thermocline must be accounted for if we are to understand the processes involved in Quaternary climatic fluctuation. ...
  • Modern sedimentation in the Northern Barents Sea : input, dipersal and deposition of suspended sediments from glacial meltwater 

    Pfirman, Stephanie L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1984-08)
    The modern depositional environment of the northern epicontinental Barents Sea varies from proximal to distal glaciomarine. The regional surface sediment distribution is controlled by erosion of shallow banks of the ...
  • Molecular and isotopic records of combustion inputs to the environment over the last 250 years 

    Lima, Ana Lucia Cessel de (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2004-06)
    The most ubiquitous source of polycyclic aromatic hydrocarbons (PAHs) to the environment is incomplete combustion. This study generated a high-resolution historical record of pyrogenic PAH emissions since pre-industrial ...