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Browsing WHOI Theses by Title

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Browsing WHOI Theses by Title

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  • Deffenbaugh, Max (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-02)
    This thesis presents the design and simulation of an acoustic listen-only navigation system for use in a time-varying high-multipath environment. The system uses a ray tracing model of sound propagation in a horizontally ...
  • LeBas, Phillip J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-09)
    A review of the Odyssey IIB autonomous underwater vehicle shows that energy costs associated with vehicle controls can be reduced and operational flexibility improved with relatively simple, low cost improvements. Because ...
  • Xu, Kevin (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
    An algorithm is developed for underwater acoustic signal processing with an array of hydrophones. With various acoustic signals coming from different directions, the maximum likelihood approach is used to estimate the ...
  • Eriksen, Charles Curtis (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1976-09)
    Measurements of horizontal and vertical current by propeller cluster current meters and temperature by thermistors mounted on a rigid array 8 m high and 20 m long moored in the oceanic main thermocline near Bermuda are ...
  • Lawrence, Wendy B. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-08)
    A tomographic array is placed in a 2-layer, flat bottom, steady-wind driven quasi-geostrophic circulation model to investigate whether the analysis of acoustic travel time changes can detect large-scale barotropic ...
  • Haven, Scott (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2012-09)
    The Acoustic Doppler Current Profiler (ADCP) is a proven technology which is capable of measuring surface wave height and directional information, however it is generally limited to rigid, bottom mounted applications which ...
  • Bowen, Melissa M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-02)
    The variability of salt transport determines the variation of the length of the salinity intrusion and the large-scale density gradient in an estuary. This thesis contains three studies that address salt transport and ...
  • Hestermann, Eli V. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-12)
    Aryl hydrocarbon receptor (AHR) expression and activity was characterized in the teleost hepatoma cell line, PLHC-1. This work was carried out in order to gain insights into mechanisms of halogenated aromatic hydrocarbon ...
  • Crowe, John (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1981-02)
    The equatorial Pacific heat flow low, a major oceanic geothermal anomaly centered on the equatorial sediment bulge, was investigated using deeply penetrating heat flow probes (6-11 meters penetration) within three ...
  • Kalnejais, Linda H. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2005-09)
    The fate of trace metals in contaminated coastal sediments is poorly understood, yet critical for effective coastal management. The aim of this thesis is to investigate and quantify the mechanisms leading to the release ...
  • Shaw, William J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
    The bottom boundary layer is an important dynamical region of shallow water flows. In this thesis, the problem of turbulent mixing in the coastal bottom boundary layer is investigated with a unique set of field measurements ...
  • Friedrichs, Marjorie A. M. (Woods Hole Oceanographic Institution, 1993-01)
    A transatlantic CTD/ADCP section nominally located at 11°N was carried out in March 1989. In this paper relative geostrophic velocities are computed from these data via the thermal wind balance, with reference level choices ...
  • Botella, Juan (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-09)
    The interaction between the eddy field and the mean flow near the Gulf Stream is studied here using satellite altimeter measurements and an eddy resolving numerical modeL. The eddy vorticity flux in the quasigeostrophic ...
  • Strasser, Carly A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-06)
    In this dissertation, I explored metapopulation dynamics and population connectivity, with a focus on the softshell clam, Mya arenaria. I first worked towards developing a method for using elemental signatures retained ...
  • Boissonneault Cellineri, Katie Rose (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
    Phytoplankton mortality (herbivory) and bacterivory were examined experimentally in West Neck Bay and Coecles Harbor, Long Island, NY from April through September, 1998. Small algae (<5 μm diameter) dominated phytoplankton ...
  • Hmelo, Laura R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-06)
    Quorum sensing (QS) via acylated homoserine lactones (AHLs) was discovered in the ocean, yet little is known about its role in the ocean beyond its involvement in certain symbiotic interactions. The objectives of this ...
  • Becker, Jamie W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-06)
    Marine phytoplankton are the principal producers of oceanic dissolved organic matter (DOM), the organic substrate responsible for secondary production by heterotrophic microbes in the sea. Despite the importance of DOM ...
  • Gin, Karina Y. H. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-06)
    Characteristics of microbial size spectra (bacteria and phytoplankton) were examined in relation to changes in ecosystem productivity and environmental perturbations. Samples were obtained from productive coastal waters ...
  • Walther, Benjamin D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-02)
    Geochemical signatures in the otoliths of diadromous fishes may allow for retrospective analyses of natal origins. In an assessment of river-specific signatures in American shad (Alosa sapidissima), an anadromous clupeid ...
  • Siemann, Liese A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-05)
    I sequenced mitochondrial DNA (mtDNA) from 59 long-finned pilot whales (Globicephala melas) that stranded on the coasts of Cape Cod, Newfoundland, Nova Scotia, Scotland, and England or were caught by commercial fisheries ...

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