Now showing items 283-302 of 938

    • Ekman veering, internal waves, and turbulence observed under Arctic sea ice 

      Cole, Sylvia T.; Timmermans, Mary-Louise; Toole, John M.; Krishfield, Richard A.; Thwaites, Fredrik T. (American Meteorological Society, 2014-05)
      The ice–ocean system is investigated on inertial to monthly time scales using winter 2009–10 observations from the first ice-tethered profiler (ITP) equipped with a velocity sensor (ITP-V). Fluctuations in surface winds, ...
    • Electrical structure beneath the northern MELT line on the East Pacific Rise at 15°45′S 

      Baba, Kiyoshi; Tarits, Pascal; Chave, Alan D.; Evans, Rob L.; Hirth, Greg; Mackie, Randall L. (American Geophysical Union, 2006-11-16)
      The electrical structure of the upper mantle beneath the East Pacific Rise (EPR) at 15°45′S is imaged by inverting seafloor magnetotelluric data obtained during the Mantle ELectromagnetic and Tomography (MELT) experiment. ...
    • Electromagnetic constraints on a melt region beneath the central Mariana back-arc spreading ridge 

      Matsuno, Tetsuo; Evans, Rob L.; Seama, Nobukazu; Chave, Alan D. (American Geophysical Union, 2012-10-25)
      An electrical resistivity profile across the central Mariana subduction system shows high resistivity in the upper mantle beneath the back-arc spreading ridge where melt might be expected to exist. Although seismic data ...
    • Electromagnetic image of the Trans-Hudson orogen — THO94 transect 

      Garcia, Xavier; Jones, Alan G. (National Research Council Canada, 2005-06-01)
      The North American Central Plains (NACP) anomaly in enhanced electric conductivity and its relationship with the Paleoproterozoic Trans-Hudson orogen (THO) has been studied under the auspices of Lithoprobe for over a decade. ...
    • Electronic still camera processing and mosaicking 

      Howland, Jonathan C.; Lerner, Steven A. (Woods Hole Oceanographic Institution, 1999-12-23)
      Since 1990, the Deep Submergence Laboratory and Deep Submergence Group of the Woods Hole Oceanographic Institution have been collecting large quantities of digital imagery and creating digital photomosaics of the sea ...
    • Elevators - autonomous transporters for deep sea benthic sample recovery 

      Bowen, Martin F.; Bernard, P. J.; Gleason, D. E.; Whitcomb, Louis L. (Woods Hole Oceanographic Institution, 2000-01)
      Two classes of sample recovery devices have been fabricated for use with the Jason deep diving remotely operated vehicle (ROV). One class includes custom-built, autonomous vertical transporters (AVTs) that are capable of ...
    • Emerging trends in the sea state of the Beaufort and Chukchi seas 

      Thomson, James M.; Fan, Yalin; Stammerjohn, Sharon E.; Stopa, Justin; Rogers, W. Erick; Girard-Ardhuin, Fanny; Ardhuin, Fabrice; Shen, Hayley; Perrie, Will; Shen, Hui; Ackley, Steve; Babanin, Alexander; Liu, Qingxiang; Guest, Peter; Maksym, Ted; Wadhams, Peter; Fairall, Christopher W.; Persson, Ola; Doble, Martin; Graber, Hans C.; Lund, Bjoern; Squire, Vernon; Gemmrich, Johannes; Lehner, Susanne; Holt, Benjamin; Meylan, Michael; Brozena, John; Bidlot, Jean-Raymond (Elsevier, 2016-07-06)
      The sea state of the Beaufort and Chukchi seas is controlled by the wind forcing and the amount of ice-free water available to generate surface waves. Clear trends in the annual duration of the open water season and in the ...
    • Emulating the fast-start swimming performance of the chain pickerel (Esox niger) using a mechanical fish design 

      Watts, Matthew Nicholas (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2006-09)
      Mean maximum start-up accelerations and velocities achieved by the fast-start specialist, northern pike, are reported at 120 ms-2 and 4 ms-1, respectively (Harper and Blake, 1990). In this thesis, a simple mechanical system ...
    • Enhanced acoustic mode coupling resulting from an internal solitary wave approaching the shelfbreak in the South China Sea 

      Chiu, Linus Y. S.; Reeder, D. Benjamin; Chang, Yuan-Ying; Chen, Chi-Fang; Chiu, Ching-Sang; Lynch, James F. (Acoustical Society of America, 2013-03)
      Internal waves and bathymetric variation create time- and space-dependent alterations in the ocean acoustic waveguide, and cause subsequent coupling of acoustic energy between propagating normal modes. In this paper, the ...
    • Enhancement of fine particle deposition to permeable sediments 

      Fries, Jerry Stephen (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2002-02)
      Predictions of deposition rate are integral to the transport of many constituents including contaminants, organic matter, and larvae. Review of the literature demonstrates a general appreciation for the potential control ...
    • An entropic framework for AUV sensor modelling 

      Singh, Hanumant (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1995-05-25)
      This thesis examines the general task of active sensing by defining a measure of efficiency for sensing in a particular environment. We focus on fine-scale acoustic mapping from an autonomous underwater vehicle (AUV). ...
    • Entropy and scintillation analysis of acoustical beam propagation through ocean internal waves 

      Morozov, Andrey K.; Colosi, John A. (Acoustical Society of America, 2005-03)
      Parabolic equation numerical simulations of waveguide acoustical beam propagation in an ocean of Garrett–Munk internal waves are used to examine the range evolution of beam properties such as beamwidth (both spectral and ...
    • Entropy rate defined by internal wave scattering in long-range propagation 

      Morozov, Andrey K.; Colosi, John A. (Acoustical Society of America, 2015-09-08)
      The reduction of information capacity of the ocean sound channel due to scattering by internal waves is a potential problem for acoustic communication, navigation, and remote sensing over long ranges. In spite of recent ...
    • Environmental analysis and prediction of transmission loss in the region of the New England Shelfbreak 

      Hornick, Heather Rene (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-09)
      A confluence of several coastal oceanographic features creates an acoustically interesting region with high variability along the New England Shelfbreak. Determining the effect of the variability on acoustic propagation ...
    • Environmental controls, oceanography and population dynamics of pathogens and harmful algal blooms: connecting sources to human exposure 

      Dyble, Julianne; Bienfang, Paul; Dusek, Eva; Hitchcock, Gary; Holland, A. Fredrick; Laws, Edward A.; Lerczak, James A.; McGillicuddy, Dennis J.; Minnett, Peter; Moore, Stephanie K.; O'Kelly, Charles; Solo-Gabriele, Helena M.; Wang, John D. (BioMed Central, 2008-11-07)
      Coupled physical-biological models are capable of linking the complex interactions between environmental factors and physical hydrodynamics to simulate the growth, toxicity and transport of infectious pathogens and harmful ...
    • Environmental metabolomics : databases and tools for data analysis 

      Longnecker, Krista; Futrelle, Joe; Coburn, Elizabeth; Kido Soule, Melissa C.; Kujawinski, Elizabeth B. (Elsevier, 2015-06-19)
      Metabolomics is the study of small molecules, or ‘metabolites’, that are the end products of biological processes. While -omics technologies such as genomics, transcriptomics, and proteomics measure the metabolic potential ...
    • Error and uncertainty in estimates of Reynolds stress using ADCP in an energetic ocean state 

      Rapo, Mark A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2006-02)
      The challenge of estimating the Reynolds stress in an energetic ocean environment derives from the turbulence process overlapping in frequency, or in wavenumber, with the wave process. It was surmised that they would not ...
    • Eruption of a deep-sea mud volcano triggers rapid sediment movement 

      Feseker, Tomas; Boetius, Antje; Wenzhofer, Frank; Blandin, Jerome; Olu, Karine; Yoerger, Dana R.; Camilli, Richard; German, Christopher R.; de Beer, Dirk (Nature Publishing Group, 2014-11-11)
      Submarine mud volcanoes are important sources of methane to the water column. However, the temporal variability of their mud and methane emissions is unknown. Methane emissions were previously proposed to result from a ...
    • ESOM I and II final report 

      Bocconcelli, Alessandro; Berteaux, Henri O.; Frye, Daniel E.; Prindle, Bryce (Woods Hole Oceanographic Institution, 1991-11)
      An Engineering Surface Oceanographic Mooring (ESOM) program was initiated in 1989 by the Woods Hole Oceanographic Institution for the purpose of evaluating the long term, in situ performance of new moored array materials ...