Now showing items 431-450 of 938

    • The influence of stratification and nonlocal turbulent production on estuarine turbulence : an assessment of turbulence closure with field observations 

      Scully, Malcolm E.; Geyer, W. Rockwell; Trowbridge, John H. (American Meteorological Society, 2011-01)
      Field observations of turbulent kinetic energy (TKE), dissipation rate ε, and turbulent length scale demonstrate the impact of both density stratification and nonlocal turbulent production on turbulent momentum flux. The ...
    • Initial results from a cartesian three-dimensional parabolic equation acoustical propagation code 

      Duda, Timothy F. (Woods Hole Oceanographic Institution, 2006-12)
      A three-dimensional (3D) parabolic equation acoustical propagation code has been developed and run successfully. The code is written in the MATLAB language and runs in the MATLAB environment. The code has been implemented ...
    • Instrumentation for open ocean aquaculture monitoring 

      Irish, James D.; Carroll, Megan; Singer, Robin C.; Newhall, Arthur E.; Paul, Walter; Johnson, Craig; Witzell, Nick; Rice, Glen; Fredriksson, David W. (Woods Hole Oceanographic Institution, 2001-10)
      The Woods Hole Oceanographic Institution is assisting the University of New Hampshire by instrumenting a fish cage and mooring as part of their Open Ocean Aquaculture demonstration program in the Gulf of Maine. To understand ...
    • Intake flow fields for a zooplankton pump sampling system 

      Brooks, James Ray (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-08)
      The flow fields entering intake forms oriented into a steady flume flow has been observed and quantified. This data is applied to a model of zooplankton sampler performance, to predict the fraction of the sampled ...
    • An integrated modal approach to surface and volume scattering in ocean acoustic waveguides 

      Tracey, Brian H. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-01)
      Acoustic propagation in the ocean can be strongly affected by small random variations in ocean properties, including rough surfaces and volume fluctuations in the ocean or seabed. Such inhomogeneities scatter part of the ...
    • Integrated seawater sampler and data acquisition system prototype : final report 

      Berteaux, Henri O.; Eck, Calvert F.; Irish, James D.; Jenkins, William J.; Kery, Sean M.; Albro, Carl S.; McDowell, S. (Woods Hole Oceanographic Institution, 1993-04)
      This report documents the work performed by the Woods Hole Oceanographic Institution (WHOI) and the Battelle Memorial Institute from August 1988 to December 1992 in the NSF sponsored development of an Integrated Seawater ...
    • Inter-annual variability of acoustic ray travel times in the northeast Pacific 

      Furgerson, John A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1990-09)
      An acoustic tomography experiment consisting of a source near Hawaii and seven receivers along the west coast of North America was conducted from November 1987 to May 1988 and from February 1989 to July 1989. In this ...
    • Interaction of high frequency internal waves and the boundary layer on the continental shelf 

      Sanford, Lawrence P. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1984-08)
      Intermittent, shoreward propagating packets of high frequency first mode internal waves are common on the continental shelf when the water column is stratified and may induce large fluctuations in near bottom velocity. ...
    • Interannual variability of Alexandrium fundyense abundance and shellfish toxicity in the Gulf of Maine 

      McGillicuddy, Dennis J.; Anderson, Donald M.; Solow, Andrew R.; Townsend, David W. (2005-05-03)
      Six years of oceanographic surveys of Alexandrium fundyense concentrations in the Gulf of Maine are combined with shellfish toxicity records from coastal monitoring stations to assess covariations of these quantities on ...
    • Interannual variability of the surface summertime eastward jet in the South China Sea 

      Li, Yuanlong; Han, Weiqing; Wilkin, John L.; Zhang, Weifeng G.; Arango, Hernan G.; Zavala-Garay, Javier; Levin, Julia C.; Castruccio, Frederic S. (John Wiley & Sons, 2014-10-27)
      The summertime eastward jet (SEJ) located around 12°N, 110°E–113°E, as the offshore extension of the Vietnam coastal current, is an important feature of the South China Sea (SCS) surface circulation in boreal summer. ...
    • Internal solitons in the northeastern south China Sea. Part I: sources and deep water propagation 

      Ramp, Steven R.; Tang, Tswen Yung; Duda, Timothy F.; Lynch, James F.; Liu, Antony K.; Chiu, Ching-Sang; Bahr, Frederick L.; Kim, Hyoung-Rok; Yang, Yiing-Jang (IEEE, 2004-10)
      A moored array of current, temperature, conductivity, and pressure sensors was deployed across the Chinese continental shelf and slope in support of the Asian Seas International Acoustics Experiment. The goal of the ...
    • Internal solitons in the ocean 

      Apel, J. R.; Ostrovsky, L. A.; Stepanyants, Y. A.; Lynch, James F. (Woods Hole Oceanographic Institution, 2006-01)
      Nonlinear internal waves in the ocean are discussed (a) from the standpoint of soliton theory and (b) from the viewpoint of experimental measurements. First, theoretical models for internal solitary waves in the ocean are ...
    • Internal tide and nonlinear internal wave behavior at the continental slope in the northern south China Sea 

      Duda, Timothy F.; Lynch, James F.; Irish, James D.; Beardsley, Robert C.; Ramp, Steven R.; Chiu, Ching-Sang; Tang, Tswen Yung; Yang, Yiing-Jang (IEEE, 2004-10)
      A field program to measure acoustic propagation characteristics and physical oceanography was undertaken in April and May 2001 in the northern South China Sea. Fluctuating ocean properties were measured with 21 moorings ...
    • Internal tide generation by tall ocean ridges 

      Echeverri Mondragon, Paula (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-09)
      Internal tides are internal waves of tidal period generated by tidal currents flowing over submarine topography. Tall ridges that are nominally two-dimensional (2-D) are sites of particularly strong generation. The ...
    • Internal wave effects on acoustic propagation 

      Duda, Timothy F. (Institute of Applied and Computational Mathematics, 2005-06)
      Internal gravity wave induced acoustic fluctuations are reviewed. It is well known that internal waves cause temporal and spatial variability above and beyond that caused by mesoscale and larger ocean heterogeneity. ...
    • Intrinsic nonlinearity and spectral structure of internal tides at an idealized Mid-Atlantic Bight shelf break 

      Zhang, Weifeng G.; Duda, Timothy F. (American Meteorological Society, 2013-12)
      To quantify dynamical aspects of internal-tide generation at the Mid-Atlantic Bight shelf break, this study employs an idealized ocean model initialized by climatological summertime stratification and forced by monochromatic ...
    • An inverse method for obtaining the attenuation profile and small variations in the sound speed and density profiles of the ocean bottom 

      Rajan, Subramaniam D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1985-05)
      The acoustic properties of marine sediments have a direct effect on the propagation of sound in the ocean. In the frequency range of interest (50 - 500 Hz) the sediment can be modelled as a fluid. Assuming horizontal ...
    • Inversion for subbottom sound velocity profiles in the deep and shallow ocean 

      Souza, Luiz Alberto Lopes de (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2005-02)
      This thesis investigates the application of acoustic measurements in the deep and shallow ocean to infer the sound velocity profile (svp) in the seabed. For the deep water ocean, an exact method based on the Gelfand-Levitan ...
    • An investigation into the characteristics and sources of light emission at deep-sea hydrothermal vents 

      White, Sheri N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-06)
      A spectral camera (ALISS - Ambient Light Imaging and Spectral System) was used to image ambient light from high-temperature vents at 9°N East Pacific Rise and the Juan de Fuca Ridge during 1997 and 1998 Alvin dive cruises. ...
    • Investigation into the feasibility of detecting salt fingers optically 

      Albro, Carl S. (Woods Hole Oceanographic Institution, 1972-08)
      During the last decade there has been increasing interest in discovering the existance of salt fingering in the ocean. The purpose of this investigation was to determine the feasibility of optically detecting ...