Now showing items 457-476 of 899

    • Laboratory measurements of the sound generated by breaking waves 

      Loewen, Mark Richard (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1991-12)
      Breaking waves dissipate energy, transfer momentum from the wind to surface currents and breaking enhances the transfer of gas and mass across the air-sea interface. Breaking waves are believed to be the dominant source ...
    • A laboratory study of localized boundary mixing in a rotating stratified fluid 

      Wells, Judith R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-02)
      Oceanic observations indicate that abyssal mixing is localized in regions of rough topography. How locally mixed fluid interacts with the ambient fluid is an open question. Laboratory experiments explore the interaction ...
    • Large scale oceanic circulation and fluxes of freshwater, heat, nutrients and oxygen 

      Ganachaud, Alexandre S. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-12)
      A new, global inversion is used to estimate the large scale oceanic circulation based on the World Ocean Circulation Experiment and Java Australia Dynamic Experiment hydrographic data. A linear inverse "box" model is ...
    • Large-area visually augmented navigation for autonomous underwater vehicles 

      Eustice, Ryan M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2005-06)
      This thesis describes a vision-based, large-area, simultaneous localization and mapping (SLAM) algorithm that respects the low-overlap imagery constraints typical of autonomous underwater vehicles (AUVs) while exploiting ...
    • Larval dispersal between hydrothermal vent habitats 

      Kim, Stacy L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-01)
      Hydrothermal vents are isolated, short-term habitats that support unique biotic assemblages with relatively high biomass utilizing an unusual energy source. How these communities establish themselves and maintain species ...
    • Larval ecology and synchronous reproduction of two crustacean species : Semibalanus balanoides in New England, USA and Gecarcinus quadratus in Veraguas, Panama 

      Gyory, Joanna (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-02)
      The environmental cues for synchronous reproduction were investigated for two highly abundant, ecologically important crustacean species: the temperate acorn barnacle, Semibalanus balanoides, and the tropical terrestrial ...
    • Laser diffraction particle sizing : sampling and inversion 

      Riley, James B. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1987-08-13)
      The inverse problem of obtaining particle size distributions from observations of the angular distribution of near forward scattered light is reexamined. Asymptotic analysis of the forward problem reveals the ...
    • Late cretaceous (Maestrichtian) calcareous nannoplankton biogeography with emphasis on events immediately preceding the cretaceous/paleocene boundary 

      Ehrendorfer, Thomas W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1993-02)
      The Maestrichtian biogeography of calcareous nannoplankton is investigated in order to characterize paleoenvironmental conditions in the marine photic zone during the latest Cretaceous. Different theories explaining the ...
    • Late Holocene hurricane activity and climate variability in the northeastern Gulf of Mexico 

      Lane, D. Philip (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-09)
      Hurricane activity in the Northeastern Gulf of Mexico and its relationship to regional and large-scale climate variability during the Late Holocene is explored. A 4500-year record of hurricane-induced storm surges is ...
    • Late Paleogene (Eocene to Oligocene) paleoceanography of the northern North Atlantic 

      Miller, Kenneth George (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1982-10)
      Seismic stratigraphic evidence from the western and northern North Atlantic indicates that a major change in abyssal circulation occurred in the latest Eocene to earliest Oligocene. In the northern North Atlantic, the ...
    • Late Quaternary climate variability and terrestrial carbon cycling in tropical South America 

      Fornace, Kyrstin L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2016-02)
      Characterizing global and regional climate variability and climate-carbon cycle interactions in the past provides critical context for evaluating present and future climate trends. In this thesis, I use stable isotope ...
    • Late quaternary sedimentation in the Eastern Angola Basin 

      Bornhold, Brian D. (Woods Hole Oceanographic Institution, 1973-11)
      Recent sedimentation in the eastern Angola Basin includes calcareous oozes in the north and south (Guinea Rise and Walvis Ridge) and hemipelagic lutites and terrigenous turbidites on the Congo Cone and on the Angola rise ...
    • Life cycle evolution and systematics of Campanulariid hydrozoans 

      Govindarajan, Annette F. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2004-09)
      The purpose of this thesis is to study campanulariid life cycle evolution and systematics. The Campanulariidae is a hydrozoan family with many life cycle variations, and provide an excellent model system to study life ...
    • Life cycle studies of the red tide dinoflagellate species complex Alexandrium tamarense 

      Brosnahan, Michael L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-02)
      Blooms of toxic species within the algal dinoflagellate species complex Alexandrium tamarense may cause Paralytic Shellfish Poisoning, a significant and growing environmental threat worldwide. However, blooms of closely ...
    • Life history traits and population processes in marine bivalve molluscs 

      Ripley, Bonnie J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1998-02)
      In this thesis, I investigated the how the life history characteristics of the clam Mya arenaria determine the population response to chronic contaminant exposure. To predict the potential responses of a broadcast-spawning ...
    • Linear and nonlinear Rossby waves in basins both with and without a thin meridional barrier 

      Atherton, Juli (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2002-02)
      The linear and nonlinear Rossby wave solutions are examined in homogeneous square basins on the ß-plane both with and without a thin meridional barrier In the presence of the meridional barrier the basin is almost ...
    • Linear and nonlinear stratified spindown over sloping topography 

      Benthuysen, Jessica A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-06)
      In a stratified rotating fluid, frictionally driven circulations couple with the buoyancy field over sloping topography. Analytical and numerical methods are used to quantify the impact of this coupling on the vertical ...
    • Linear normal mode analysis of baroclinic instability in a meridional channel 

      Walker, Alison (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-03)
      Numerical solutions of the unstable, growing modes are found for the two-layer inviscid quasigeostrophic equations in a meridional channel. A steady mean flow in the N-S direction is imposed in the upper layer, and it ...
    • Linking microbial metabolism and organic matter cycling through metabolite distributions in the ocean 

      Johnson, Winifred M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2017-02)
      Key players in the marine carbon cycle are the ocean-dwelling microbes that fix, remineralize, and transform organic matter. Many of the small organic molecules in the marine carbon pool have not been well characterized ...
    • Lipid biomarkers of coral stress : calibration and exploration 

      Kneeland, Jessie M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-06)
      Corals are increasingly threatened by warming sea surface temperatures and other anthropogenic changes. The delicate symbiosis between corals and their algal endosymbionts (zooxanthellae) is easil ...