Now showing items 308-327 of 867

    • Flow and skin friction over natural rough beds 

      Paola, Christopher (Woods Hole Oceanographic Institution, 1983-06)
      The first of two sets of data reported here, measured over two-dimensional immobile current ripples, comprises skin-friction time series at four streamwise positions and velocity profiles measured to within a few mm of ...
    • Flow over finite isolated topography 

      Thompson, LuAnne (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1990-11)
      One and two layer models are used to study flow over axisymmetric isolated topography. Inviscid or nearly inviscid flow in which non-linear effects have order one importance is considered, and both the effects of β and ...
    • Fluid flow and sound generation at hydrothermal vent fields 

      Little, Sarah A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-04-08)
      Several experiments are presented in this thesis which examine methods to measure and monitor fluid flow from hydrothermal vent fields. Simultaneous velocity, temperature, and conductivity data were collected in the ...
    • Fluxes, dynamics and chemistry of particulates in the ocean 

      Gardner, Wilford D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1977-10)
      Sediment traps designed to yield quantitative data of particulate fluxes have been deployed and successfully recovered on four moorings in the deep sea. The traps were designed after extensive calibration of different ...
    • The Flying Fish, an untethered oceanographic sensor platform with acoustic homing capability 

      Hoyt, Joshua King (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1986-05)
      The Flying Fish is an autonomous, streamlined, gravity driven underwater vehicle of high speed (15 knots) vertical excursions to depths of 6000 meters. This prototype uses short baseline acoustic interferometry to guide ...
    • Form, function and flow in the plankton : jet propulsion and filtration by pelagic tunicates 

      Sutherland, Kelly R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-02)
      Trade-offs between filtration rate and swimming performance among several salp species with distinct morphologies and swimming styles were compared. Small-scale particle encounter at the salp filtering apparatus was also ...
    • Forward scattering of a pulsed continuous wave signal through laminar and turbulent thermal plumes 

      Bowen, Stephen G. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1993-09)
      The results of an experiment examining the forward propagation or an acoustic signal through a buoyant plume are discussed. Two distinct testing sights were used. One made use of a small fresh water tank in NUWC to provide ...
    • Forward sound propagation around seamounts : application of acoustic models to the Kermit-Roosevelt and Elvis seamounts 

      Kim, Hyun Joe (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-06)
      The Basin Acoustic Seamount Scattering Experiment (BASSEX) of 2004 was conducted to measure forward-scattering around the Kermit-Roosevelt Seamount Complex in the Northeast Pacific. The BASSEX experiment was focused on ...
    • Free-surface turbulence and air-water gas exchange 

      McKenna, Sean P. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-09)
      This thesis investigates the physical mechanisms of air-water gas transfer through direct measurements of turbulence at the air--water interface. To enable this study, a new approach to the particle image velocimetry ...
    • Functional anatomy of the Macrouridae (Teleostei, Gadiformes) 

      McLellan, Tracy (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1976-05)
      Osteology and myology of the head of 21 species of macrourids and two closely related species are described. A general model of the mechanics of the macrourid head during feeding has been developed based on the ...
    • Functional characterization and expression of molluscan detoxification enzymes and transporters involved in dietary allelochemical resistance 

      Whalen, Kristen E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-06)
      Understanding how organisms deal with potentially toxic or fitness-reducing allelochemicals is important for understanding patterns of predation and herbivory in the marine environment. The ability of marine consumers ...
    • Functional connectivity of coral reef fishes in a tropical seascape assessed by compound-specific stable isotope analyses 

      McMahon, Kelton W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-02)
      The ecological integrity of tropical habitats, including mangroves, seagrass beds and coral reefs, is coming under increasing pressure from human activities. Many coral reef fish species are thought to use mangroves and ...
    • Functional genomics of a non-toxic Alexandrium lusitanicum culture 

      Martins, Claudia A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-02)
      Paralytic shellfish poisoning (PSP) is a human intoxication associated with the consumption of shellfish contaminated with a family of neurotoxins called saxitoxins. Many species in the dinoflagellate genus Alexandrium ...
    • Gene discovery and expression profilng in the toxin-producing marine diatom, Pseudo-nitzschia multiseries (Hasle) Hasle 

      Boissonneault, Katie Rose (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2004-09)
      Toxic algae are a growing concern in the marine environment. One unique marine diatom, Pseudo-nitzschia multiseries (Hasle) Hasle, produces the the neurotoxin domoic acid, which is the cause of amnesic shellfish poisoning. ...
    • Generation and maintenance of recirculations by Gulf Stream instabilities 

      Beliakova, Natalia Y. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-02)
      This thesis studies the problems of generation and maintenance of recirculations by Gulf Stream instabilities. Observations show that the horizontal structure of the jet and its recirculations suffer significant changes ...
    • Generation of mid-ocean eddies : the local baroclinic instability hypothesis 

      Arbic, Brian K. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-08)
      The plausibility of local baroclinic instability as a generation mechanism for midocean mesoscale eddies is examined with a two-layer, quasi-geostrophic (QG) model forced by an imposed, horizontally homogeneous, vertically ...
    • The generation, energetics and propagation of internal tides in the western North Atlantic Ocean 

      Hendry, Ross MacRae (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-04)
      This thesis reports on an investigation into the structure, energetics and propagation of tidal frequency internal waves. Data from Site D, near the New England continental slope, Muir Seamount northeast of Bermuda, and ...
    • The genetic analysis of the vulval cell lineages of Caenorhabditis elegans 

      Ferguson, Edwin Louis (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1985-05)
      The cell lineages of the nematode Caenorhabditis elegana are essentially invariant among individuals. We have begun an attempt to understand the genetic specification of one particular cell lineage, that of the hermaphrodite ...
    • Genetic variability and differentiation in niche components of marine phytoplankton species 

      Brand, Larry E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1980-01)
      The acclimated asexual reproduction rates of many clones of Emiliania huxleyi (82), Gephrocapsa oceanica (19), Cyclococcolithina leptopora (31), Prorocentrum micans (28), Dissodinium lunula (22), Thoracosphaera heimi ...
    • Geoacoustic inversion by mode amplitude perturbation 

      Poole, Travis L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-02)
      This thesis introduces an algorithm for inverting for the geoacoustic properties of the seafloor in shallow water. The input data required by the algorithm are estimates of the amplitudes of the normal modes excited by ...