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  • Udovydchenkov, Ilya A.; Rypina, Irina I.; Brown, Michael G. (Acoustical Society of America, 2010-04-07)
    The discrete form of the mode filtering problem is considered. The relevant equations constitute a linear inverse problem. Solutions to problems of this type are subject to a well-known trade-off between resolution and ...
  • Noyes, T. James; Guza, R. T.; Feddersen, Falk; Elgar, Steve; Herbers, T. H. C. (American Geophysical Union, 2005-05-27)
    Observations of shear waves, alongshore propagating meanders of the mean alongshore current with periods of a few minutes and alongshore wavelengths of a few hundred meters, are compared with model predictions based on ...
  • Chen, Changsheng; Xu, Qichun; Houghton, Robert; Beardsley, Robert C. (American Geophysical Union, 2008-02-09)
    A process-oriented model-dye comparison experiment was conducted to examine the ability of a numerical ocean model to simulate the observed movement of dye across the tidal mixing front on the southern flank of Georges ...
  • Yamashita, Grant; Miller, Holly; Goddard, Anthony; Norton, Cathy N. (2010-08-04)
    Many areas of science such as biology, medicine, and oceanography are becoming increasingly data-rich and most programs that train scientists do not address informatics techniques or technologies that are necessary for ...
  • Klanjscek, Tin; Nisbet, Roger M.; Caswell, Hal; Neubert, Michael G. (Ecological Society of America, 2007-12)
    We present a dynamic energy budget (DEB) model for marine mammals, coupled with a pharmacokinetic model of a lipophilic persistent toxicant. Inputs to the model are energy availability and lipid-normalized toxicant ...
  • Helfrich, Karl R.; White, Brian L. (Copernicus Publications on behalf of the European Geosciences Union and the American Geophysical Union, 2010-07-15)
    Large-amplitude internal solitary waves in continuously stratified systems can be found by solution of the Dubreil-Jacotin-Long (DJL) equation. For finite ambient density gradients at the surface (bottom) for waves of ...
  • Morford, Jennifer L.; Martin, William R.; Francois, Roger; Carney, Caitlin M. (2008-12-31)
    The purpose of this research is to characterize the mobilization and immobilization processes that control the authigenic accumulation of uranium (U), rhenium (Re) and molybdenum (Mo) in marine sediments. We analyzed ...
  • Malmquist, Kenneth A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-09)
    The Deep Submergence Laboratory has developed a family of calibrated high frequency bathymetric sonar systems for underwater survey. It is useful to have a detailed mathematical description of these systems to assist in ...
  • DeRuiter, Stacy L.; Tyack, Peter L.; Lin, Ying-Tsong; Newhall, Arthur E.; Lynch, James F.; Miller, Patrick J. O. (Acoustical Society of America, 2006-12)
    In 2002 and 2003, tagged sperm whales (Physeter macrocephalus) were experimentally exposed to airgun pulses in the Gulf of Mexico, with the tags providing acoustic recordings at measured ranges and depths. Ray trace and ...
  • Jakuba, Michael V. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-02)
    The Sentry AUV represents a radical departure from conventional AUV design, particularly with respect to actuation. The vehicle's combined foil/thruster actuators have the potential to produce a vehicle both maneuverable ...
  • Severson, Jared (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-02)
    Marine mammal whistle calls present an attractive medium for covert underwater communications. High quality models of the whistle calls are needed in order to synthesize natural-sounding whistles with embedded information. ...
  • Bhushan, Vikas (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1998-09)
    A detailed examination of the development of a deep convection event observed in the Greenland Sea in 1988-89 is carried out through a combination of modeling, scale estimates, and data analysis. We develop a prognostic ...
  • Rastetter, Edward B. (Ecological Society of America, 2011-02)
    Organisms require about 30 essential elements to sustain life. The cycles of these elements are coupled to one another through the specific physiological requirements of the organisms. Here, I contrast several approaches ...
  • Udovydchenkov, Ilya A.; Duda, Timothy F.; Doney, Scott C.; Lima, Ivan D. (Acoustical Society of America, 2010-08-19)
    Possible future changes of ambient shipping noise at 0.1–1 kHz in the North Pacific caused by changing seawater chemistry conditions are analyzed with a simplified propagation model. Probable decreases of pH would cause ...
  • Fennel, Katja; Brady, Damian; DiToro, Dominic; Fulweiler, Robinson W.; Gardner, Wayne S.; Giblin, Anne E.; McCarthy, Mark J.; Rao, Alexandra; Seitzinger, Sybil P.; Thouvenot-Korppoo, Marie; Tobias, Craig R. (2008-10-10)
    Sediment denitrification is a major pathway of fixed nitrogen loss from aquatic systems. Due to technical difficulties in measuring this process and its spatial and temporal variability, estimates of local, regional and ...
  • Li, Dan (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-09)
    Acoustic propagation in the ocean inevitably encounters inhomogeneities of various types, which give rise to scattering. Acoustic scattering from rough water /bottom interfaces comprised of exposed rocks and sea mountains ...
  • Stephen, Ralph A.; Swift, Stephen A. (Acoustical Society of America, 1994-08)
    A numerical scattering chamber (NSC) has been developed to compute backscatter functions for geologically realistic seafloor models. In the NSC, solutions are computed to the elastic (or anelastic) wave equation by the ...
  • Stephen, Ralph A. (Acoustical Society of America, 1996-10)
    A numerical scattering chamber based on the time-domain finite-difference solution of the two-way elastic wave equation is applied to a sea surface scattering problem, and excellent agreement is obtained in amplitude and ...
  • Duda, Timothy F.; Preisig, James C. (IEEE, 1999-01)
    Propagation of 400-Hz sound through continental-shelf internal solitary wave packets is shown by numerical simulation to be strongly influenced by coupling of normal modes. Coupling in a packet is controlled by the mode ...
  • Jin, X.; Najjar, Raymond G.; Louanchi, F.; Doney, Scott C. (American Geophysical Union, 2007-05-09)
    An ecosystem model embedded in a global ocean general circulation model is used to quantify roles of biological and physical processes on seasonal oxygen variations. We find that the thermally induced seasonal net outgassing ...

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