Now showing items 202-221 of 1163

  • Data assimilative modeling investigation of Gulf Stream Warm Core Ring interaction with continental shelf and slope circulation 

    Chen, Ke; He, Ruoying; Powell, Brian S.; Gawarkiewicz, Glen G.; Moore, Andrew M.; Arango, Hernan G. (John Wiley & Sons, 2014-09-12)
    A data assimilative ocean circulation model is used to hindcast the interaction between a large Gulf Stream Warm Core Ring (WCR) with the Mid-Atlantic Bight (MAB) shelf and slope circulation. Using the recently developed ...
  • A data processing module for acoustic doppler current meters 

    Plueddemann, Albert J.; Oien, Andrea L.; Singer, Robin C.; Smith, Stephen P. (Woods Hole Oceanographic Institution, 1992-01)
    This report describes the development of a Data Processing Module (DPM) designed for use with an RD Instruments Acoustic Doppler Current Meter (ADCM). The DPM is a self-powered unit in its own pressure case and its use ...
  • Decadal changes of wind stress over the Southern Ocean associated with Antarctic ozone depletion 

    Yang, Xiao-Yi; Huang, Rui Xin; Wang, Dong Xiao (American Meteorological Society, 2007-07-15)
    Using 40-yr ECMWF Re-Analysis (ERA-40) data and in situ observations, the positive trend of Southern Ocean surface wind stress during two recent decades is detected, and its close linkage with spring Antarctic ozone depletion ...
  • Decadal variability of pycnocline flows from the subtropical to the equatorial Pacific 

    Wang, Qi; Huang, Rui Xin (American Meteorological Society, 2005-10)
    A method based on isopycnal trajectory analysis is proposed to quantify the pathways from the subtropics to the Tropics. For a continuous stratified ocean a virtual streamfunction is defined, which can be used to characterize ...
  • Decadal variability of the upper ocean heat content in the East/Japan Sea and its possible relationship to northwestern Pacific variability 

    Na, Hanna; Kim, Kwang-Yul; Chang, Kyung-Il; Park, Jong Jin; Kim, Kuh; Minobe, Shoshiro (American Geophysical Union, 2012-02-09)
    The upper ocean heat content variability in the East/Japan Sea was investigated using a 40 year temperature and salinity data set from 1968 to 2007. Decadal variability was identified as the dominant mode of variability ...
  • Decadal variability of wind-energy input to the world ocean 

    Huang, Rui Xin; Wang, Wei; Liu, Ling Ling (2005-08-17)
    Wind stress energy input to the oceans is the most important source of mechanical energy in maintaining the oceanic general circulation. Previous studies indicate that wind energy input to the Ekman layer and surface waves ...
  • Decay and return of internal solitary waves with rotation 

    Helfrich, Karl R. (2006-12-18)
    The effect of rotation on the propagation of internal solitary waves is examined. Wave evolution is followed using a new rotating extension of a fully-nonlinear, weakly nonhydrostatic theory for waves in a two-layer ...
  • Deep ocean changes near the Western Boundary of the South Pacific Ocean 

    Sloyan, Bernadette M.; Wijffels, Susan E.; Tilbrook, Bronte; Katsumata, Katsuro; Murata, Akihiko; Macdonald, Alison M. (American Meteorological Society, 2013-10)
    Repeated occupations of two hydrographic sections in the southwest Pacific basin from the 1990s to 2000s track property changes of Antarctic Bottom Water (AABW). The largest property changes—warming, freshening, increase ...
  • Deep South China Sea circulation 

    Wang, Guihua; Xie, Shang-Ping; Qu, Tangdong; Huang, Rui Xin (American Geophysical Union, 2011-03-01)
    The analysis of an updated monthly climatology of observed temperature and salinity from the U.S. Navy Generalized Digital Environment Model reveals a basin-scale cyclonic circulation over the deep South China Sea (SCS). ...
  • Deep-water flow over the Lomonosov Ridge in the Arctic Ocean 

    Timmermans, Mary-Louise; Winsor, Peter; Whitehead, John A. (American Meteorological Society, 2005-08)
    The Arctic Ocean likely impacts global climate through its effect on the rate of deep-water formation and the subsequent influence on global thermohaline circulation. Here, the renewal of the deep waters in the isolated ...
  • Deepwater overflow through Luzon Strait 

    Qu, Tangdong; Girton, James B.; Whitehead, John A. (American Geophysical Union, 2006-01-10)
    This study examines water property distributions in the deep South China Sea and adjoining Pacific Ocean using all available hydrographic data. Our analysis reveals that below about 1500 m there is a persistent baroclinic ...
  • Defining the spicity 

    Huang, Rui Xin (Sears Foundation for Marine Research, 2011-07-01)
    Spicity is defined as a thermodynamic variable whose isopleths are 'perpendicular“ to those of density in the (T, S) diagram. A new set of Matlab codes are defined based on the following criteria: First, the isopleths of ...
  • Delayed baroclinic response of the Antarctic circumpolar current to surface wind stress 

    Yang, Xiao-Yi; Huang, Rui Xin; Wang, Jia; Wang, Dong Xiao (2008-01-11)
    Antarctic Circumpolar Current (ACC) responds to the surface windstress via two processes, i.e., instant barotropic process and delayed baroclinic process. This study focuses on the baroclinic instability mechanism in ACC. ...
  • Dense water formation around islands 

    Spall, Michael A. (John Wiley & Sons, 2013-05-17)
    Basic constraints on the dense water formation rate and circulation resulting from cooling around an island are discussed. The domain under consideration consists of an island surrounded by a shelf, a continental slope, ...
  • Design and operation of automated ice-tethered profilers for real-time seawater observations in the polar oceans 

    Krishfield, Richard A.; Doherty, Kenneth W.; Frye, Daniel E.; Hammar, Terence R.; Kemp, John N.; Peters, Donald B.; Proshutinsky, Andrey; Toole, John M.; von der Heydt, Keith (Woods Hole Oceanographic Institution, 2006-06)
    An automated, easily-deployed Ice-Tethered Profiler (ITP) has been developed for deployment on perennial sea ice in polar oceans to measure changes in upper ocean temperature and salinity in all seasons. The ITP system ...
  • Design and validation of a modified Eppley PSP pyranometer 

    Payne, Richard E. (Woods Hole Oceanographic Institution, 1994-11)
    A modified version of the Eppley PSP pyranometer has been designed for use on ships and moored buoys. Seventeen have been built by the Eppley Laboratory for the Upper Ocean Processes Group and deployed on buoys in the ...
  • Design study for a moored surface-scanning sonar 

    Freitag, Lee E.; Plueddemann, Albert J.; Merriam, Steve (Woods Hole Oceanographic Institution, 1993-06)
    This report contains the results of a design study for a surface scanning sonar instrument capable of long-term deployment on ocean moorings. The instrument is intended to sample the bubble field just below the ocean's ...
  • Detection of change in the Arctic using satellite and in situ data 

    Comiso, Josefino C.; Yang, Jiayan; Honjo, Susumu; Krishfield, Richard A. (American Geophysical Union, 2003-12-24)
    The decade of the 1990s was the warmest decade of the last century, while the year 1998 was the warmest year ever observed by modern techniques, with 9 out of 12 months of the year being the warmest months. Satellite ice ...
  • Deterioration of perennial sea ice in the Beaufort Gyre from 2003 to 2012 and its impact on the oceanic freshwater cycle 

    Krishfield, Richard A.; Proshutinsky, Andrey; Tateyama, K.; Williams, William J.; Carmack, Eddy C.; McLaughlin, Fiona A.; Timmermans, Mary-Louise (John Wiley & Sons, 2014-02-22)
    Time series of ice draft from 2003 to 2012 from moored sonar data are used to investigate variability and describe the reduction of the perennial sea ice cover in the Beaufort Gyre (BG), culminating in the extreme minimum ...
  • The development of nonlinear surface and internal wave groups 

    Chereskin, Teresa K. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1982-08)
    The development of nonlinear surface and internal wave groups is investigated. Surface wave evolution was observed in an unusually long wave channel as a function of steepness and group length. Dissipation and frequency ...