Now showing items 283-302 of 1308

    • Dynamics of marine zooplankton : social behavior ecological interactions, and physically-induced variability 

      Verdy, Ariane (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-02)
      Marine ecosystems reflect the physical structure of their environment and the biological processes they carry out. This leads to spatial heterogeneity and temporal variability, some of which is imposed externally and ...
    • The dynamics of mean circulation on the continental shelf 

      Shaw, Ping-Tung Peter (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1982-02)
      Mean long-isobath drift of the order 5 cm/sec has been observed on several continental shelves, e.g. in the Middle Atlantic Bight and in the Weddell Sea. A theoretical model is developed to explore the driving mechanism ...
    • Dynamics of nonlinear cross-equatorial flow in the deep ocean 

      Edwards, Christopher A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-12)
      The transformation of potential vorticity within and stability of nonlinear deep western boundary currents in an idealized tropical ocean are studied using a shallowwater model. Observational evidence indicates that the ...
    • Dynamics of the Antarctic circumpolar current : evidence for topographic effects from altimeter data and numerical model output 

      Gille, Sarah T. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1995-02)
      Geosat altimeter data and numerical model output are used to examine the circulation and dynamics of the Antarctic Circumpolar Current (ACC). The mean sea surface height across the ACC has been reconstructed from height ...
    • Dynamics of the direct intrusion of Gulf Stream ring water onto the Mid-Atlantic Bight shelf 

      Zhang, Weifeng G.; Gawarkiewicz, Glen G. (John Wiley & Sons, 2015-09-30)
      Onshore intrusions of offshore waters onto the Mid-Atlantic Bight shelf can greatly affect shelf circulation, biogeochemistry, and fisheries. Previous studies have concentrated on onshore intrusions of slope water. Here ...
    • Dynamics of the equatorial undercurrent and its termination 

      Wacongne, Sophie H. C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-01)
      This study focuses on the zonal weakening, eastern termination and seasonal variations of the Atlantic equatorial undercurrent (EUC). The main and most original contribution of the dissertation is a detailed analysis ...
    • The dynamics of unsteady strait and sill flow 

      Pratt, Lawrence J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1982-04)
      The dynamics of steady and unsteady channel flow over large obstacles is studied analytically and numerically in an attempt to determine the applicability of classical hydraulic concepts to such flows. The study is motivated ...
    • Early assessment of seasonal forage availability for mitigating the impact of drought on East African pastoralists 

      Vrieling, Anton; Meroni, Michele; Mude, Andrew G.; Chantarat, Sommarat; Ummenhofer, Caroline C.; de Bie, Kees (C.A.J.M.) (2015-11)
      Pastoralist households across East Africa face major livestock losses during drought periods that can cause persistent poverty. For Kenya and southern Ethiopia, an existing index insurance scheme aims to reduce the adverse ...
    • The East Greenland Coastal Current : its structure variability, and large-scale impact 

      Sutherland, David A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-02)
      The subtidal circulation of the southeast Greenland shelf is described using a set of highresolution hydrographic and velocity transects occupied in summer 2004. The main feature present is the East Greenland Coastal ...
    • The East Greenland Coastal Current : structure, variability, and forcing 

      Sutherland, David A.; Pickart, Robert S. (2008-03-12)
      The subtidal circulation of the southeast Greenland shelf is described using a set of high-resolution hydrographic and velocity transects occupied in summer 2004. The main feature is the East Greenland Coastal Current ...
    • The East Greenland Spill Jet 

      Pickart, Robert S.; Torres, Daniel J.; Fratantoni, Paula S. (American Meteorological Society, 2005-06)
      High-resolution hydrographic and velocity measurements across the East Greenland shelf break south of Denmark Strait have revealed an intense, narrow current banked against the upper continental slope. This is believed to ...
    • The East Greenland Spill Jet as an important component of the Atlantic Meridional Overturning Circulation 

      von Appen, Wilken-Jon; Koszalka, Inga M.; Pickart, Robert S.; Haine, Thomas W. N.; Mastropole, Dana; Magaldi, Marcello G.; Valdimarsson, Heoinn; Girton, James B.; Jochumsen, Kerstin; Krahmann, Gerd (2014-06-03)
      The recently discovered East Greenland Spill Jet is a bottom-intensified current on the upper continental slope south of Denmark Strait, transporting intermediate density water equatorward. Until now the Spill Jet has ...
    • EcoMapper operations---KN209-1 

      Hodges, Benjamin A.; Fratantoni, David M. (Woods Hole Oceanographic Institution, 2012-12)
      This report describes the collection of water property data from EcoMapper AUVs during the R/V Knorr 209-1 cruise as part of the SPURS (Salinity Processes Upper-ocean Regional Study) project. Post-processing was required ...
    • Eddies and an extreme water mass anomaly observed in the eastern south Pacific at the Stratus mooring 

      Stramma, Lothar; Weller, Robert A.; Czeschel, Rena; Bigorre, Sebastien P. (John Wiley & Sons, 2014-02-12)
      In the tropical eastern South Pacific the Stratus Ocean Reference Station (ORS) (∼20°S, 85.5°W) is located in the transition zone between the oxygen minimum zone (OMZ) and the well-oxygenated subtropical gyre. In February/March ...
    • Eddies and friction : removal of vorticity from the wind-driven gyre 

      Fox-Kemper, Baylor (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-06)
      Inertial terms dominate the single-gyre ocean model and prevent western-intensification when the viscosity is small. This occurs long before the oceanically-appropriate parameter range. It is demonstrated here that the ...
    • Eddies in the Canada Basin, Arctic Ocean, observed from ice-tethered profilers 

      Timmermans, Mary-Louise; Toole, John M.; Proshutinsky, Andrey; Krishfield, Richard A.; Plueddemann, Albert J. (American Meteorological Society, 2008-01)
      Five ice-tethered profilers (ITPs), deployed between 2004 and 2006, have provided detailed potential temperature θ and salinity S profiles from 21 anticyclonic eddy encounters in the central Canada Basin of the Arctic ...
    • Eddy dynamics of ß plumes 

      Kida, Shinichiro (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-09)
      The importance of eddies and nonlinearities in ß-plume dynamics in the deep ocean was investigated using reduced gravity models of the deep ocean forced by a small region of cross isopycnal transport in the interior. The ...
    • Eddy forcing of the mean circulation in the western North Atlantic 

      Brown, Ellen Dunning (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1984-08)
      This thesis addresses several aspects of the problem of determining the effect of the low-frequency eddy variability on the mean circulation of the Western North Atlantic. A framework for this study is first established ...
    • Eddy formation near the west coast of Greenland 

      Bracco, Annalisa; Pedlosky, Joseph; Pickart, Robert S. (American Meteorological Society, 2008-09)
      This paper extends A. Bracco and J. Pedlosky’s investigation of the eddy-formation mechanism in the eastern Labrador Sea by including a more realistic depiction of the boundary current. The quasigeostrophic model consists ...
    • Eddy generation at a convex corner by a coastal current in a rotating system 

      Klinger, Barry A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-03)
      Rotating baroclinic and barotropic boundary currents flowing around a corner in the laboratory were studied in order to discover the circumstances under which eddies were produced at the corner. Such flows are reminiscent ...