Now showing items 665-684 of 854

  • A SAIL compatible three channel acoustic navigation interrogator 

    Liberatore, Stephen P. (Woods Hole Oceanographic Institution, 1990-09)
    Ocean Acoustic Tomography data are significantly degraded if mooring motion is unknown. An autonomous instrument employing a solid state data logger designed to track and record mooring motion is described. Navigation ...
  • Satellite observations of chlorophyll, phytoplankton biomass, and Ekman pumping in nonlinear mesoscale eddies 

    Gaube, Peter; Chelton, Dudley B.; Strutton, Peter G.; Behrenfeld, Michael J. (John Wiley & Sons, 2013-12-02)
    Nonlinear mesoscale eddies can influence biogeochemical cycles in the upper ocean through vertical and horizontal advection of nutrients and marine organisms. The relative importance of these two processes depends on the ...
  • Satellite observations of mesoscale eddy-induced Ekman pumping 

    Gaube, Peter; Chelton, Dudley B.; Samelson, Roger M.; Schlax, Michael G.; O’Neill, Larry W. (American Meteorological Society, 2015-01)
    Three mechanisms for self-induced Ekman pumping in the interiors of mesoscale ocean eddies are investigated. The first arises from the surface stress that occurs because of differences between surface wind and ocean ...
  • Scalar flux profile relationships over the open ocean 

    Edson, James B.; Zappa, Christopher J.; Ware, J. A.; McGillis, Wade R.; Hare, Jeffrey E. (American Geophysical Union, 2004-08-14)
    The most commonly used flux-profile relationships are based on Monin-Obukhov (MO) similarity theory. These flux-profile relationships are required in indirect methods such as the bulk aerodynamic, profile, and inertial ...
  • Scattering of the low-mode internal tide at the Line Islands Ridge 

    Haji, Maha N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2015-02)
    The scattering of low-mode internal tides by ocean-floor topography is extensively studied through analytical models and field observations at the Line Islands Ridge (LIR). An existing Green function method is utilized ...
  • Sea surface temperature patterns on the West Florida Shelf using growing hierarchical self-organizing maps 

    Liu, Yonggang; Weisberg, Robert H.; He, Ruoying (American Meteorological Society, 2006-02)
    Neural network analyses based on the self-organizing map (SOM) and the growing hierarchical self-organizing map (GHSOM) are used to examine patterns of the sea surface temperature (SST) variability on the West Florida Shelf ...
  • Sea-to-air fluxes from measurements of the atmospheric gradient of dimethylsulfide and comparison with simultaneous relaxed eddy accumulation measurements 

    Hintsa, Eric J.; Dacey, John W. H.; McGillis, Wade R.; Edson, James B.; Zappa, Christopher J.; Zemmelink, Hendrik J. (American Geophysical Union, 2004-01-30)
    We measured vertical profiles of dimethylsulfide (DMS) in the atmospheric marine boundary layer from R/P FLIP during the 2000 FAIRS cruise. Applying Monin-Obukhov similarity theory to the DMS gradients and simultaneous ...
  • Seafloor ripples created by waves from Hurricane Ivan on the west Florida shelf 

    Bowers, Colleen Marie (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2006-09)
    Recent studies have shown that the presence of sand ripples on the seabed improves sonar detection of buried mines at sub-critical angles. Sidescan sonar data of ripples on the west Florida shelf were collected as part ...
  • Search methods for an autonomous underwater vehicle using scalar measurements 

    Burian, Erik A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-07-18)
    The continuing development of the autonomous underwater vehicle as an oceanographic research tool has opened up the realm of scientific possibility in the field of deep ocean research. The ability of a vehicle to travel ...
  • The seasonal nitrogen cycle in Wilkinson Basin, Gulf of Maine, as estimated by 1-D biological model optimization 

    Anderson, Laurence A. (2009-04-22)
    The objective of this study was to fit a simple ecosystem model to climatological nitrogen cycle data in the Gulf of Maine, in order to calibrate the biological model for use in future 3-D modelling studies. First ...
  • Seasonal variation of ocean bottom pressure derived from Gravity Recovery and Climate Experiment (GRACE) : local validation and global patterns 

    Kanzow, Torsten; Flechtner, Frank; Chave, Alan D.; Schmidt, Roland; Schwintzer, Peter; Send, Uwe (American Geophysical Union, 2005-09-02)
    The Gravity Recovery and Climate Experiment (GRACE) processing centers at the GeoForschungsZentrum Potsdam (GFZ) and the University of Texas Center for Space Research (UTCSR) provide time series of monthly gravity field ...
  • Sediment deposition in the lower Hudson River estuary 

    Woodruff, Jonathan D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
    This study uses geophysical and sedimentological data collected from the Lower Hudson River estuary to identify the depositional response of the estuary to high river discharge events. Erosional and depositional environments ...
  • Sediment pumping by tidal asymmetry in a partially mixed estuary 

    Scully, Malcolm E.; Friedrichs, Carl T. (American Geophysical Union, 2007-07-28)
    Observations collected at two laterally adjacent locations are used to examine the processes driving sediment transport in the partially mixed York River Estuary. Estimates of sediment flux are decomposed into advective ...
  • Sediment transport and deposition on a river-dominated tidal flat : an idealized model study 

    Chen, Shih-Nan; Geyer, W. Rockwell; Sherwood, Christopher R.; Ralston, David K. (American Geophysical Union, 2010-10-16)
    A 3-D hydrodynamic model is used to investigate how different size classes of river-derived sediment are transported, exported and trapped on an idealized, river-dominated tidal flat. The model is composed of a river channel ...
  • Sediment transport due to extreme events : the Hudson River estuary after tropical storms Irene and Lee 

    Ralston, David K.; Warner, John C.; Geyer, W. Rockwell; Wall, Gary R. (John Wiley & Sons, 2013-10-18)
    Tropical Storms Irene and Lee in 2011 produced intense precipitation and flooding in the U.S. Northeast, including the Hudson River watershed. Sediment input to the Hudson River was approximately 2.7 megaton, about 5 times ...
  • Sedimentation rates test models of oceanic detachment faulting 

    Parnell-Turner, Ross; Cann, Johnson R.; Smith, Deborah K.; Schouten, Hans A.; Yoerger, Dana R.; Palmiotto, Camilla; Zheleznov, Alexei; Bai, Hailong (John Wiley & Sons, 2014-10-23)
    Long-lived detachment faults play an important role in the construction of new oceanic crust at slow-spreading mid-oceanic ridges. Although the corrugated surfaces of exposed low-angle faults demonstrate past slip, it is ...
  • Self consistent bathymetric mapping from robotic vehicles in the deep ocean 

    Roman, Christopher N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2005-06)
    Obtaining accurate and repeatable navigation for robotic vehicles in the deep ocean is difficult and consequently a limiting factor when constructing vehicle-based bathymetric maps. This thesis presents a methodology to ...
  • Self deployable deep sea moorings 

    Berteaux, Henri O.; Kery, Sean M.; Walden, Robert G. (Woods Hole Oceanographic Institution, 1992-01)
    As part of a development effort in the field of moored arrays sponsored by the Office of Naval Technology, the Ocean Structures and Moorings Laboratory (OSM&L), Applied Ocean Physics and Engineering Department (AOP&E), ...
  • Setup in the surfzone 

    Apotsos, Alex (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-09)
    Surfzone wave height transformation and wave-breaking-driven increases in the mean sea level (setup) are examined on alongshore-uniform beaches with alongshore homogeneous and inhomogeneous wave forcing. While previously ...
  • Shallow Water ’06 : a joint acoustic propagation/nonlinear internal wave physics experiment 

    Tang, Dajun; Moum, James N.; Lynch, James F.; Abbot, Philip A.; Chapman, Ross; Dahl, Peter H.; Duda, Timothy F.; Gawarkiewicz, Glen G.; Glenn, Scott M.; Goff, John A.; Graber, Hans C.; Kemp, John N.; Maffei, Andrew R.; Nash, Jonathan D.; Newhall, Arthur E. (Oceanography Society, 2007-12)
    Since the end of the Cold War, the US Navy has had an increasing interest in continental shelves and slopes as operational areas. To work in such areas requires a good understanding of ocean acoustics, coastal physical ...