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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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  • Colosi, John A.; Duda, Timothy F.; Lin, Ying-Tsong; Lynch, James F.; Newhall, Arthur E.; Cornuelle, Bruce D. (Acoustical Society of America, 2012-02)
    Environmental sensors moored on the New Jersey continental shelf tracked constant density surfaces (isopycnals) for 35 days in the summer of 2006. Sound-speed fluctuations from internal-wave vertical isopycnal displacements ...
  • Raubenheimer, Britt; Elgar, Steve; Guza, R. T. (American Geophysical Union, 2004-01-30)
    Vertical flow structure and turbulent dissipation in the swash zone are estimated using cross-shore fluid velocities observed on a low-sloped, fine-grained sandy beach [Raubenheimer, 2002] with two stacks of three current ...
  • Gerbi, Gregory P.; Trowbridge, John H.; Terray, Eugene A.; Plueddemann, Albert J.; Kukulka, Tobias (American Meteorological Society, 2009-05)
    Observations of turbulent kinetic energy (TKE) dynamics in the ocean surface boundary layer are presented here and compared with results from previous observational, numerical, and analytic studies. As in previous studies, ...
  • Traykovski, Peter A. (American Geophysical Union, 2007-06-30)
    Measurements of seafloor ripples under wave-dominated conditions from the LEO15 site and the Martha’s Vineyard coastal observatory were used to develop a time-dependent model for ripple geometry. The measurements consisted ...
  • Collis, Jon M.; Duda, Timothy F.; Lynch, James F.; DeFerrari, Harry A. (Acoustical Society of America, 2008-08-28)
    Using a moored source and horizontal/vertical line array combination, horizontal coherence properties of high signal to noise ratio (>=20 dB) 100–1600 Hz signals have been measured. Internal waves in the area of the ...
  • Bowlin, James B.; Spiesberger, John L.; Duda, Timothy F.; Freitag, Lee E. (Woods Hole Oceanographic Institution, 1992-10)
    A new computer program for accurate calculation of acoustic ray paths through a range-varing ocean sound channel has been written. It is based on creating a model of the speed of sound in the ocean, consistent with input ...
  • Stephen, Ralph A.; Spiess, Fred N.; Collins, John A.; Hildebrand, John A.; Orcutt, John A.; Peal, Kenneth R.; Vernon, F. L.; Wooding, Frank B. (2003-10-31)
    The primary goal of the Ocean Seismic Network Pilot Experiment (OSNPE) was to learn how to make high quality broadband seismic measurements on the ocean bottom in preparation for a permanent ocean seismic network. The ...
  • Duda, Timothy F. (Acoustical Society of America, 2005-11)
    The relative importance of internal-wave strain and internal-wave shear on perturbation of acoustic ray trajectories in the ocean is analyzed. Previous estimates based on the Garrett-Munk internal-wave spectral model are ...
  • Zimmer, Walter M. X.; Madsen, Peter T.; Teloni, Valeria; Johnson, Mark P.; Tyack, Peter L. (Acoustical Society of America, 2005-11)
    Sperm whales (Physeter macrocephalus) produce multipulsed clicks with their hypertrophied nasal complex. The currently accepted view of the sound generation process is based on the click structure measured directly in front ...
  • Stanton, Timothy K. (Acoustical Society of America, 2000-08)
    Acoustic scattering by the seafloor is sometimes influenced, if not dominated, by the presence of discrete volumetric objects such as shells. A series of measurements of target strength of a type of benthic shelled animal ...
  • Stanton, Timothy K.; Chu, Dezhang (Acoustical Society of America, 2004-07)
    Recent laboratory measurements of acoustic backscattering by individual benthic shells have isolated the edge-diffracted echo from echoes due to the surface of the main body of the shell. The data indicate that the echo ...
  • Gorska, Natalia; Chu, Dezhang (2004-12-01)
    It is important to understand the volume backscattering by dense aggregations of a variety of scattering objects such as bubbles or biological targets. This paper addresses the interference of the echoes from randomly ...
  • Chave, Alan D. (John Wiley & Sons, 2009-10-14)
    In recent years, marine controlled source electromagnetics (CSEM) has found increasing use in hydrocarbon exploration due to its ability to detect thin resistive zones beneath the seafloor. Although it must be recognized ...
  • Chave, Alan D. (Oxford University Press on behalf of The Royal Astronomical Society, 2013-10-25)
    The statistical properties of the Swift skew, the phase-sensitive skew and the WAL invariants I1−I7 and Q are examined through analytic derivation of their probability density functions and/or simulation based on a Gaussian ...
  • Ross, Tetjana; Garrett, Christopher; Lueck, Rolf (Cambridge University Press, 2004-08-24)
    While acoustic scatter from oceanic turbulence is sensitive to temperature–salinity covariations, there are unfortunately no published measurements of the turbulent temperature–salinity co-spectrum. Several models have ...
  • Lynch, James F.; Emerson, Chris; Abbot, Philip A.; Gawarkiewicz, Glen G.; Newhall, Arthur E.; Lin, Ying-Tsong; Duda, Timothy F. (Acoustical Society of America, 2012-02)
    To understand the issues associated with the presence (or lack) of azimuthal isotropy and horizontal (along isobath) invariance of low-frequency (center frequencies of 600 Hz and 900 Hz) acoustic propagation in a shelfbreak ...
  • Moore, C.; Barnard, A.; Fietzek, P.; Lewis, Marlon R.; Sosik, Heidi M.; White, Sheri N.; Zielinski, O. (Copernicus Publications on behalf of the European Geosciences Union, 2009-12-10)
    Requirements for understanding the relationships between ocean color and suspended and dissolved materials within the water column, and a rapidly emerging photonics and materials technology base for performing optical based ...
  • Rajagopal, Gopalkrishna (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1995-02)
    Periodic structures which are slightly disordered undergo dramatic changes in mode shapes such that the responses go from being spatially extended to spatially localized. This phenomenon called mode localization, offers ...
  • Segal, Mordechai; Weinstein, Ehud (Woods Hole Oceanographic Institution, 1989-08)
    We develop a computationally efficient iterative algorithm for source localization and tracking using active/passive arrays with uncertainties in sensor locations. We suppose that the available data consist of time delay, ...
  • Foote, Kenneth G. (Acoustical Society of America, 1982-03)
    An operational definition of backscattering cross section is developed for the wideband reception of finite echoes. This is supported by relative measurements on a set of copper spheres by each of four echo sounders operating ...

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