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Browsing Applied Ocean Physics and Engineering (AOP&E) by Title

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Browsing Applied Ocean Physics and Engineering (AOP&E) by Title

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  • Jensen, Harold Franklin (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-06)
    Over the past 20 years, underwater vehicle technology has undergone drastic improvements, and vehicles are quickly gaining popularity as a tool for numerous oceanographic tasks. Systems used on the vehicle to alter buoyancy, ...
  • Prestero, Timothy (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-09)
    Improving the performance of modular, low-cost autonomous underwater vehicles (AUVs) in such applications as long-range oceanographic survey, autonomous docking, and shallow-water mine countermeasures requires improving ...
  • Wichers, Sacha (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2005-02)
    Hydrothermal vents discharge superheated, mineral rich water into our oceans, thereby providing a habitat for exotic chemosynthetic biological communities. Hydrothermal fluids are convected upwards until they cool and ...
  • Feddersen, Falk; Trowbridge, John H.; Williams, Albert J. (American Meteorological Society, 2007-07)
    The vertical structure of the dissipation of turbulence kinetic energy was observed in the nearshore region (3.2-m mean water depth) with a tripod of three acoustic Doppler current meters off a sandy ocean beach. Surface ...
  • Jensen, Frants H.; Bejder, Lars; Wahlberg, Magnus; Aguilar De Soto, Natacha; Johnson, Mark P.; Madsen, Peter T. (Inter-Research, 2009-12-03)
    Increasing numbers and speeds of vessels in areas with populations of cetaceans may have the cumulative effect of reducing habitat quality by increasing the underwater noise level. Here, we first use digital acoustic tags ...
  • Lerner, Steven A. (Woods Hole Oceanographic Institution, 1999-08)
    Visual is a visualization system used to access and analyze high-volume multi-sensor data collected from remotely operated underwater vehicles. Since 1991, scientists have used Visual for scientific visualization and ...
  • Eustice, Ryan M.; Pizarro, Oscar; Singh, Hanumant (IEEE, 2008-04)
    As autonomous underwater vehicles (AUVs) are becoming routinely used in an exploratory context for ocean science, the goal of visually augmented navigation (VAN) is to improve the near-seafloor navigation precision of such ...
  • Martin, Ann; Catipovic, Josko A.; Fristrup, Kurt M.; Tyack, Peter L. (Woods Hole Oceanographic Institution, 1990-07)
    A real-time spetrogram instrument has been developed to provide an inexpensive and field-portable instrument for the analysis of animal sounds. The instrument integrates a computer graphics display package with a PC-AT ...
  • Anderson, Jamie M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-02)
    Vorticity control is a new paradigm in propulsion hydrodynamics. In this thesis, we study fish-like propulsion strategies as concepts in vorticity control. Our motivation for this research stems from the remarkable ...
  • Clark, David B.; Elgar, Steve; Raubenheimer, Britt (American Geophysical Union, 2012-12-21)
    Eddies and vortices associated with breaking waves rapidly disperse pollution, nutrients, and terrestrial material along the coast. Although theory and numerical models suggest that vorticity is generated near the ends of ...
  • Fredericks, Janet J.; Trowbridge, John H.; Williams, Albert J. (Woods Hole Oceanographic Institution, 1998-07)
    Electromagnetic fluctuations and turbulent vorticity fluctuations were measured over a nine month period in the strong tidal flows of the Strait of Juan De Fuca off the coast of the Olympic Peninsula of Washington. ...
  • Donoghue, Terence; Ledwell, James R.; Doherty, Kenneth W. (Woods Hole Oceanographic Institution, 1998-12)
    Conventional "spot" sampling of patchy distributions of oceanic constituents can lead to sampling errors. Interpretation of results based on data of disparate temporal or spatial resolution can be difficult or impossible. ...
  • Elgar, Steve; Raubenheimer, Britt (American Geophysical Union, 2008-04-12)
    Muddy seafloors cause tremendous dissipation of ocean waves. Here, observations and numerical simulations of waves propagating between 5- and 2-m water depths across the muddy Louisiana continental shelf are used to estimate ...
  • Apotsos, Alex; Raubenheimer, Britt; Elgar, Steve; Guza, R. T. (American Geophysical Union, 2008-07-19)
    The effect of alongshore variations in the incident wavefield on wave-driven setup and on alongshore flows in the surfzone is investigated using observations collected onshore of a submarine canyon. Wave heights and radiation ...
  • Engelstad, Anita; Janssen, T. T.; Herbers, T. H. C.; van Vledder, Gerbrant; Elgar, Steve; Raubenheimer, Britt; Trainor, Lincoln; Garcia-Garcia, Ana (2012-10)
    Observations and third-generation wave model hindcasts of ocean surface gravity waves propagating across the Louisiana shelf show that the effects of the mud environment on wave evolution are complex and episodic. Whereas ...
  • Hsu, Tian-Jian; Elgar, Steve; Guza, R. T. (2006-04-06)
    The 25-m onshore migration of a nearshore sandbar observed over a 5-day period near Duck, NC is simulated with a simplified, computationally efficient, wave-resolving singlephase model. The modeled sediment transport is ...
  • Laible, Henry A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1995-09)
    The goal of this thesis is to be able to predict acoustic wave speeds in sea ice with known concentrations of inhomogeneities. To accomplish this, ice is modeled as a solid in which cylindrical fluid brine channels are ...
  • Ralston, David K.; Jiang, Houshuo; Farrar, J. Thomas (2013-05-30)
    An unstructured grid, phase-averaged wave model forced with winds from a high resolution atmospheric model is used to evaluate wind wave conditions in the Red Sea over an approximately 2-year period. The Red Sea lies in a ...
  • Udovydchenkov, Ilya A.; Brown, Michael G.; Duda, Timothy F.; Worcester, Peter F.; Dzieciuch, Matthew A.; Mercer, James A.; Andrew, Rex K.; Howe, Bruce M.; Colosi, John A. (Acoustical Society of America, 2013-10)
    The propagation of weakly dispersive modal pulses is investigated using data collected during the 2004 long-range ocean acoustic propagation experiment (LOAPEX). Weakly dispersive modal pulses are characterized by weak ...
  • Rack, Frank R.; Zook, Robert; Levy, Richard H.; Limeburner, Richard; Stewart, Craig; Williams, Michael J. M.; Luyendyk, Bruce; ANDRILL Coulman High Project Site Survey Team (The Oceanography Society, 2012-09)
    Extensive field operations were conducted on the northwestern Ross Ice Shelf in Antarctica from November 2010 through January 2011. A significant amount of equipment, supplies, and people safely traversed from McMurdo ...

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