Now showing items 362-381 of 1290

    • 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 ...
    • An experimental study on mixing induced by gravity currents on a sloping bottom in a rotating fluid 

      Ohiwa, Mitchihiro (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2002-09)
      Mixing induced by gravity currents on a sloping bottom was studied through laboratory experiments in a rotating fluid. The dense fluid on the sloping bottom formed a gravity current that could be in regimes where the ...
    • An experimental study on thermal circulation driven by horizontal differential heating 

      Wang, Wei; Huang, Rui Xin (Cambridge University Press, 2005-09-27)
      Circulation driven by horizontal differential heating is studied, using a double-walled Plexiglas tank (20×15×2.5 cm3) filled with salt water. For instances of heating/cooling from above and below, results indicate that ...
    • Experiments in a rotating source-sink annulus 

      Ingram, Richard Grant (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1971-08)
      An experimental investigation of the different flow regimes in a rotating source-sink annulus is described. Both the steady and transient velocities are measured over a large range of Ekman Reynolds number and Rossby number. ...
    • Explaining the global distribution of peak-spectrum variability of sea surface height 

      Lin, Xiaopei; Yang, Jiayan; Wu, Dexing; Zhai, Ping (American Geophysical Union, 2008-07-19)
      A 14-year satellite observation of sea surface height (SSH) reveals an interesting pattern. Along any latitude, there is a frequency at which the SSH power spectrum peaks, regardless of which hemisphere or oceanic basin. ...
    • An exploration of the North Atlantic current and its recirculation in the Newfoundland basin using SOFAR floats 

      Owens, W. Brechner; Zemanovic, Marguerite E. (Woods Hole Oceanographic Institution, 1990-07)
      Trajectories and time series of velocity, temperature, and pressure are presented for 13 neutrally-buoyant, acoustically tracked (SOFAR) floats that were launched in May and June, 1986 in the Newfoundland Basin by the ...
    • Exploring practical estimates of the ensemble size necessary for particle filters 

      Slivinski, Laura; Snyder, Chris (American Meteorological Society, 2015-11-11)
      Particle filtering methods for data assimilation may suffer from the “curse of dimensionality,” where the required ensemble size grows rapidly as the dimension increases. It would, therefore, be useful to know a priori ...
    • Exploring the North Atlantic Ocean on floppy disks 

      Luyten, James R.; Stommel, Henry M. (Woods Hole Oceanographic Institution, 1988-12)
      A selection of hydrographic station data in the Atlantic between 8°S and 70°N is packed on four 5 1/4" floppy disks. Sample utility programs for reading and plotting the data are also on the disks. We present this ...
    • Explosive volcanism on the ultraslow-spreading Gakkel ridge, Arctic Ocean 

      Sohn, Robert A.; Willis, Claire; Humphris, Susan E.; Shank, Timothy M.; Singh, Hanumant; Edmonds, Henrietta N.; Kunz, Clayton G.; Hedman, Ulf; Helmke, Elisabeth; Jakuba, Michael V.; Liljebladh, Bengt; Linder, Julia; Murphy, Christopher A.; Nakamura, Ko-ichi; Sato, Taichi; Schlindwein, Vera; Stranne, Christian; Tausenfreund, Upchurch; Winsor, Peter; Jakobsson, Martin; Soule, Samuel A. (2007-11-26)
      Roughly 60% of the Earth’s outer surface is comprised of oceanic crust formed by volcanic processes at mid-ocean ridges (MORs). Although only a small fraction of this vast volcanic terrain has been visually surveyed ...
    • Extracting wind sea and swell from directional wave spectra derived from a bottom-mounted ADCP 

      Churchill, James H.; Plueddemann, Albert J.; Faluotico, Stephen M. (Woods Hole Oceanographic Institution, 2006-07)
      Recent advances in processing velocity data from bottom-mounted Acoustic Doppler Current Profilers (ADCPs) offer the capability of partitioning directional wave specctra of surface wave height in order to separate locally ...
    • Extratropical storm inundation testbed : intermodel comparisons in Scituate, Massachusetts 

      Chen, Changsheng; Beardsley, Robert C.; Luettich, Richard A.; Westerink, Joannes J.; Wang, Harry; Perrie, Will; Xu, Qichun; Donahue, Aaron S.; Qi, Jianhua; Lin, Huichan; Zhao, Liuzhi; Kerr, Patrick C.; Meng, Yanqiu; Toulany, Bash (John Wiley & Sons, 2013-10-07)
      The Integrated Ocean Observing System Super-regional Coastal Modeling Testbed had one objective to evaluate the capabilities of three unstructured-grid fully current-wave coupled ocean models (ADCIRC/SWAN, FVCOM/SWAVE, ...
    • Extreme rainfall activity in the Australian tropics reflects changes in the El Niño/Southern Oscillation over the last two millennia 

      Denniston, Rhawn F.; Villarini, Gabriele; Gonzales, Angelique N.; Wyrwoll, Karl-Heinz; Polyak, Victor J.; Ummenhofer, Caroline C.; Lachniet, Matthew S.; Wanamaker, Alan D.; Humphreys, William F.; Woods, David; Cugley, John (2015-03)
      Assessing temporal variability in extreme rainfall events prior to the historical era is complicated by the sparsity of long-term ‘direct’ storm proxies. Here we present a 2200-yr-long, accurate and precisely dated record ...
    • Factors governing the deep ventilation of the Red Sea 

      Papadopoulos, Vassilis P.; Zhan, Peng; Sofianos, Sarantis S.; Raitsos, Dionysios E.; Qurban, Mohammed; Abualnaja, Yasser; Bower, Amy S.; Kontoyiannis, Harilaos; Pavlidou, Alexandra; Asharaf, T. T. Mohamed; Zarokanellos, Nikolaos; Hoteit, Ibrahim (John Wiley & Sons, 2015-11-19)
      A variety of data based on hydrographic measurements, satellite observations, reanalysis databases, and meteorological observations are used to explore the interannual variability and factors governing the deep water ...