Now showing items 323-342 of 1187

  • Estimating the predictability of an oceanic time series using linear and nonlinear methods 

    Yuan, Guo-Cheng; Lozier, M. Susan; Pratt, Lawrence J.; Jones, C. K. R. T.; Helfrich, Karl R. (American Geophysical Union, 2004-08-03)
    This study establishes a series of tests to examine the relative utility of nonlinear time series analysis for oceanic data. The performance of linear autoregressive models and nonlinear delay coordinate embedding methods ...
  • Estimation of mixed-layer depth from surface parameters 

    Swain, D.; Ali, M. M.; Weller, Robert A. (Sears Foundation for Marine Research, 2006-09)
    Mixed layer depth (MLD) is an important oceanographic parameter. However, the lack of direct observations of MLD hampers both specification and investigation of its spatial and temporal variability. An important alternative ...
  • Estimation of ocean subsurface thermal structure from surface parameters : a neural network approach 

    Ali, M. M.; Swain, D.; Weller, Robert A. (American Geophysical Union, 2004-10-22)
    Satellite remote sensing provides diverse and useful ocean surface observations. It is of interest to determine if such surface observations can be used to infer information about the vertical structure of the ocean's ...
  • Estuarine boundary layer mixing processes : insights from dye experiments 

    Chant, Robert J.; Geyer, W. Rockwell; Houghton, Robert; Hunter, Elias; Lerczak, James A. (American Meteorological Society, 2007-07)
    A series of dye releases in the Hudson River estuary elucidated diapycnal mixing rates and temporal variability over tidal and fortnightly time scales. Dye was injected in the bottom boundary layer for each of four releases ...
  • Eulerian and Lagrangian correspondence of high-frequency radar and surface drifter data : effects of radar resolution and flow components 

    Rypina, Irina I.; Kirincich, Anthony R.; Limeburner, Richard; Udovydchenkov, Ilya A. (American Meteorological Society, 2014-04)
    This study investigated the correspondence between the near-surface drifters from a mass drifter deployment near Martha’s Vineyard, Massachusetts, and the surface current observations from a network of three high-resolution, ...
  • Evaluating salt-fingering theories 

    Inoue, R.; Kunze, Eric; St. Laurent, Louis C.; Schmitt, Raymond W.; Toole, John M. (Sears Foundation for Marine Research, 2008-07)
    The NATRE fine- and microstructure data set is revisited to test salt-finger amplitude theories. Dependences of the mixing efficiency Γ, microscale buoyancy Reynolds number Re and thermal Cox number CxT on 5-m density ratio ...
  • Evaluation and recommendations for improving the accuracy of an inexpensive water temperature logger 

    Lentz, Steven J.; Churchill, James H.; Marquette, Craig D.; Smith, Jason C. (American Meteorological Society, 2013-07)
    Onset's HOBO U22 Water Temp Pros are small, reliable, relatively inexpensive, self-contained temperature loggers that are widely used in studies of oceans, lakes, and streams. An in-house temperature bath calibration of ...
  • Evaluation of Arctic sea ice thickness simulated by Arctic Ocean Model Intercomparison Project models 

    Johnson, Mark; Proshutinsky, Andrey; Aksenov, Yevgeny; Nguyen, An T.; Lindsay, Ron; Haas, Christian; Zhang, Jinlun; Diansky, Nikolay; Kwok, Ron; Maslowski, Wieslaw; Hakkinen, Sirpa M. A.; Ashik, Igor M.; de Cuevas, Beverly (American Geophysical Union, 2012-03-15)
    Six Arctic Ocean Model Intercomparison Project model simulations are compared with estimates of sea ice thickness derived from pan-Arctic satellite freeboard measurements (2004–2008); airborne electromagnetic measurements ...
  • Evaluation of GEOSAT data and application to variability of the Northeast Pacific Ocean 

    Campbell, Jeffrey W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-09)
    A portion of the northeast Pacific ocean was chosen within which to evaluate and use altimetric data from the U.S. Navy Geodetic Satellite GEOSAT. The zero-order accuracy of the major GEOSAT geophysical data record (GDR) ...
  • Evaluation of monsoon seasonality and the tropospheric biennial oscillation transitions in the CMIP models 

    Li, Yue; Jourdain, Nicolas C.; Taschetto, Andrea S.; Ummenhofer, Caroline C.; Ashok, Karumuri; Sen Gupta, Alexander (American Geophysical Union, 2012-10-26)
    Characteristics of the Indian and Australian summer monsoon systems, their seasonality and interactions are examined in a variety of observational datasets and in the Coupled Model Intercomparison Project Phase 3 and 5 ...
  • Evaluation of NSCAT scatterometer winds using equatorial Pacific buoy observations 

    Caruso, Michael J.; Dickinson, Suzanne; Kelly, Kathryn A.; Spillane, Mick; Mangum, Linda J.; McPhaden, Michael J.; Stratton, Linda D. (Woods Hole Oceanographic Institution, 1999-07)
    As part of the calibration/validation effort for NASA's Scatterometer (NSCAT) we compare the satellite data to winds measured at the sea surface with an array of buoys moored in the equatorial Pacific Ocean. The NSCAT ...
  • Evaporative dense water formation and cross-shelf exchange over the northwest Australian inner shelf 

    Shearman, R. Kipp; Brink, Kenneth H. (American Geophysical Union, 2010-06-29)
    High-resolution surveys of oceanographic and atmospheric conditions made during the winter over the inner shelf off northwest Australia are used to examine the coastal ocean response to large outgoing heat and freshwater ...
  • The evolution and demise of North Brazil Current rings 

    Fratantoni, David M.; Richardson, Philip L. (American Meteorological Society, 2006-07)
    Subsurface float and surface drifter observations illustrate the structure, evolution, and eventual demise of 10 North Brazil Current (NBC) rings as they approached and collided with the Lesser Antilles in the western ...
  • Evolution of the Irminger Current anticyclones in the Labrador Sea from hydrographic data 

    Rykova, Tatiana A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2006-06)
    The continuous supply of heat and fresh water from the boundaries to the interior of the Labrador Sea plays an important role for the dynamics of the region and in particular, for the Labrador Sea Water formation. Thus, ...
  • The evolution of upper ocean thermal structure at 10°N, 125°W during 1997-1998 

    Farrar, J. Thomas (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-09)
    In this thesis I have endeavored to determine the factors and physical processes that controlled SST and thermocline depth at 10°N, 125°W during the Pan American Climate Study (PACS) field program. Analysis based on the ...
  • Exchanges between hemispheres and gyres : a direct approach to the mean circulation of the equatorial Pacific 

    Wijffels, Susan E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1993-09)
    An extensive set of new high-quality hydrographic data is assembled in order to determine the mean circulation in the equatorial Pacific, and thus the pathways for cross-equatorial and cross-gyre exchange. Making up the ...
  • Experimental and numerical studies of sound propagation over a submarine canyon northeast of Taiwan 

    Lin, Ying-Tsong; Duda, Timothy F.; Emerson, Chris; Gawarkiewicz, Glen G.; Newhall, Arthur E.; Calder, Brian; Lynch, James F.; Abbot, Philip A.; Yang, Yiing-Jang; Jan, Sen (IEEE, 2015-01-09)
    A study of sound propagation over a submarine canyon northeast of Taiwan was made using mobile acoustic sources during a joint ocean acoustic and physical oceanographic experiment in 2009. The acoustic signal levels ...
  • An experimental study of a mesoscale vortex colliding with topography of varying geometry in a rotating fluid 

    Adduce, Claudia; Cenedese, Claudia (Sears Foundation for Marine Research, 2004-09)
    The interaction of a self-propagating barotropic cyclonic vortex with an obstacle has been investigated and the conditions for a vortex to bifurcate into two vortices determined. As in a previous study, after a self-propagating ...
  • Experimental study of internal gravity waves over a slope 

    Cacchione, David A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1970-09)
    A series of laboratory experiments were conducted in a glass wave tank to investigate the propagation of internal gravity waves up a sloping bottom in a fluid with constant Brunt-Vaisala frequency. Measurements of the ...
  • Experimental study of the effect of rotation on nonlinear internal waves 

    Grimshaw, Roger H. J.; Helfrich, Karl R.; Johnson, Edward R. (2013-03-01)
    Large amplitude internal waves are commonly observed in the coastal ocean. In the weakly nonlinear long wave r egime, they are often modeled by the Korteweg-de Vries equation, which predicts that the long-time outcome ...