Now showing items 1-20 of 26

  • Extraction of tidal streams from a ship-borne acoustic Doppler current profiler using a statistical-dynamical model 

    Dowd, M., and KR Thompson. 1996. "Extraction of tidal streams from a ship-borne acoustic Doppler current profiler using a statistical-dynamical model." Journal of Geophysical Research-Oceans 101(C4): 8943-8956. DOI:10.1029/95JC02693
    We present a method for extracting the barotropic tide directly from the time-space series of horizontal velocity obtained by a ship-borne acoustic Doppler current profiler (ADCP). The method is conceptually straightforward, ...
  • Low-Frequency Fluctuations in the Strait of Gibraltar from Medalpex Sea-Level Data 

    GARRETT, C., J. AKERLEY, and K. THOMPSON. 1989. "Low-Frequency Fluctuations in the Strait of Gibraltar from Medalpex Sea-Level Data." Journal of Physical Oceanography 19(11): 1682-1696. © Copyright 1989 American Meteorological Society (AMS)
    No abstract available.
  • Tide-surge interaction off the east coast of Canada and northeastern United States 

    Bernier, N. B., and K. R. Thompson. 2007. "Tide-surge interaction off the east coast of Canada and northeastern United States." Journal of Geophysical Research-Oceans 112(C6): 06008-C06008. DOI:10.1029/2006JC003793
    [1] Sea level observations and a dynamical model are used to investigate tide-surge interaction in the coastal waters off the east coast of Canada and northern USA. The study is motivated in part by the need to improve ...
  • The adjoint method of data assimilation used operationally for shelf circulation 

    Griffin, DA, and KR Thompson. 1996. "The adjoint method of data assimilation used operationally for shelf circulation." Journal of Geophysical Research-Oceans 101(C2): 3457-3477. DOI:10.1029/95JC03218
    A real-time shelf circulation model with data assimilation has been successfully used, possibly for the first time, on the outer Nova Scotian Shelf, The adjoint method was used to infer the time histories of flows across ...
  • The mean surface circulation of the North Atlantic subpolar gyre: A comparison of estimates derived from new gravity and oceanographic measurements 

    Higginson, S., K. R. Thompson, J. Huang, M. Veronneau, et al. 2011. "The mean surface circulation of the North Atlantic subpolar gyre: A comparison of estimates derived from new gravity and oceanographic measurements." Journal of Geophysical Research-Oceans 116: 08016-C08016.DOI:10.1029/2010JC006877
    A new mean sea surface topography (MSST) is used to estimate the surface circulation of the subpolar gyre of the northwest Atlantic. The MSST is produced using a new geoid model derived from a blend of gravity data from ...
  • Predicting mesoscale variability of the North Atlantic using a physically motivated scheme for assimilating altimeter and Argo observations 

    Liu, Yimin, and K. R. Thompson. 2009. "Predicting mesoscale variability of the North Atlantic using a physically motivated scheme for assimilating altimeter and Argo observations." Monthly Weather Review 137(7): 2223-37. doi:10.1175/2008MWR2625.1
    A computationally efficient scheme is described for assimilating sea level measured by altimeters and vertical profiles of temperature and salinity measured by Argo floats. The scheme is based on a transformation of ...
  • The detection of coastal-trapped waves 

    Haines, J. W., K. R. Thompson, and D. P. Wiens. 1991. "The detection of coastal-trapped waves." Journal of Geophysical Research 96: 2593-7. DOI:10.1029/90JC02218
    The authors outline a simple method for estimating the cross-spectral matrix of coastal-trapped wave amplitudes, A, from a set of oceanographic observations. Specifically, they propose that A may be estimated by ...
  • Predicting the frequency of storm surges and extreme sea levels in the northwest Atlantic 

    Bernier, N. B., and K. R. Thompson. 2006. "Predicting the frequency of storm surges and extreme sea levels in the northwest Atlantic." Journal of Geophysical Research-Oceans 111(C10): 10009-C10009. DOI:10.1029/2005JC003168
    [1] A 40 year hindcast of storm surges in the northwest Atlantic and adjacent shelf seas is performed using a 2-D nonlinear barotropic ocean model forced by realistic 6 hourly winds and air pressures. This hindcast is used ...
  • Madden-Julian Oscillation and sea level: Local and remote forcing 

    Oliver, ECJ, and K. R. Thompson. 2010. "Madden-Julian Oscillation and sea level: Local and remote forcing." Journal of Geophysical Research.C.Oceans 115(C01). DOI:10.1029/2009JC005337
    The Madden-Julian Oscillation (MJO) is the dominant mode of atmospheric variability in the tropical atmosphere on intraseasonal time scales (i.e., weeks to seasons). This study examines the connection between the MJO and ...
  • Sea level and circulation variability of the Gulf of Carpentaria; influence of the Madden-Julian Oscillation and the adjacent deep ocean 

    Oliver, E. C. J., and K. R. Thompson. 2011. "Sea level and circulation variability of the Gulf of Carpentaria; influence of the Madden-Julian Oscillation and the adjacent deep ocean." Journal of Geophysical Research 116(C2): 02019-Citation C02019. DOI: 10.1029/2010JC006596
    The Madden-Julian Oscillation (MJO) is a significant contributing factor to intraseasonal variability in both the tropical and extratropical atmosphere and ocean. Sea level and circulation variations in the Gulf of Carpentaria ...
  • Return periods of extreme sea levels from short records 

    Middleton, J. F., and K. R. Thompson. 1986. "Return periods of extreme sea levels from short records." Journal of Geophysical Research 91: 11707-16. DOI: 10.1029/JC091iC10p11707
    Extreme sea levels usually arise from a combination of the tides (assumed here to be deterministic) and storm surges (assumed stochastic). The authors show how tide and surge statistics derived from short (~1 year) records ...
  • A description of water types on the Mackenzie Shelf of the Beaufort Sea during winter 

    Moore, R. M., H. Melling, and K. R. Thompson. 1992. "A description of water types on the Mackenzie Shelf of the Beaufort Sea during winter." Journal of Geophysical Research.C.Oceans 97(C8): 12607-12618. DOI:10.1029/92JC00842
    For a number of years during the 1980s, observations of the physical and chemical properties of seawater in the southeastern Beaufort Sea have been acquired in late winter. The most complete data set, from 1987, has been ...
  • A modified galerkin-spectral model for three-dimensional, barotropic, wind-driven shelf circulation 

    Sheng, Jinyu, and K. R. Thompson. 1993. "A modified galerkin-spectral model for three-dimensional, barotropic, wind-driven shelf circulation." Journal of Geophysical Research.C.Oceans 98(C4): 7011-7022. DOI:10.1029/92JC02963
    The authors describe an efficient numerical scheme for calculating wind-driven currents on the continental shelf. Our scheme is based on the spectral approach introduced by Heaps and subsequently modified by Lardner. The ...
  • Modeling events of sea-surface variability using spectral nudging in an eddy permitting model of the northeast Pacific Ocean 

    Stacey, Michael W., Jennifer Shore, Daniel G. Wright, and Keith R. Thompson. 2006. "Modeling events of sea-surface variability using spectral nudging in an eddy permitting model of the northeast Pacific Ocean." Journal of Geophysical Research-Oceans 111(C6): 06037-C06037. DOI:10.1029/2005JC003278
    [ 1] Eddies are an important part of the current system that hugs the coasts of British Columbia and Alaska. The ability of "spectral nudging'' to improve the eddy statistics determined from model simulations of this current ...
  • A robust method for diagnosing regional shelf circulation from scattered density profiles 

    Sheng, JY, and KR Thompson. 1996. "A robust method for diagnosing regional shelf circulation from scattered density profiles." Journal of Geophysical Research-Oceans 101(C11): 25647-25659. DOI:10.1029/96JC01331
    We present a straightforward method for estimating surface circulation on an f plane from a set of irregularly spaced vertical density profiles. The first step is to express bottom density rho(h) as the sum of a mean for ...
  • Estimation of Low-Frequency Wind Stress Fluctuations Over the Open Ocean 

    THOMPSON, KR, RF MARSDEN, and DG WRIGHT. 1983. "Estimation of Low-Frequency Wind Stress Fluctuations Over the Open Ocean." Journal of Physical Oceanography 13(6): 1003-1011. © Copyright 1983 American Meteorological Society (AMS)
    No abstract available.
  • A model of the circulation on the outer Scotian shelf with open boundary conditions inferred by data assimilation 

    Thompson, K. R., and D. A. Griffin. 1998. "A model of the circulation on the outer Scotian shelf with open boundary conditions inferred by data assimilation." Journal of Geophysical Research 103: 30641-60. DOI:10.1029/98JC01765
    The circulation on Western Bank is described using data collected in spring 1991 and 1992 as part of an interdisciplinary study of the early life history of Atlantic cod (Gadus morhua). The mean circulation over the crest ...
  • Subtidal circulation on the Scotian Shelf: assessing the hindcast skill of a linear, barotropic model 

    Thompson, K. R., and Jinyu Sheng. 1997. "Subtidal circulation on the Scotian Shelf: assessing the hindcast skill of a linear, barotropic model." Journal of Geophysical Research 102: 24987-5003. DOI: 10.1029/97JC00368
    Currents measured during the winter of 1985-1986 by four moorings on the inner Scotian Shelf are used to assess the hindcast skill of a three-dimensional circulation model forced by local wind stress and coastal sea level. ...
  • Mean surface topography of the northwest Atlantic: Comparison of estimates based on satellite, terrestrial gravity, and oceanographic observations 

    Thompson, K. R., J. Huang, M. Veronneau, D. G. Wright, et al. 2009. "Mean surface topography of the northwest Atlantic: Comparison of estimates based on satellite, terrestrial gravity, and oceanographic observations." Journal of Geophysical Research - Part C - Oceans 114: 0701511. DOI:10.1029/2008JC004859
    The accuracy of a new mean sea surface topography (MSST) of the northwest Atlantic is assessed. The MSST is estimated from 12 years of altimeter observations referenced with respect to a new regional geoid based on a blend ...
  • Surface heat flux, horizontal advection, and the seasonal evolution of water temperature on the Scotian Shelf 

    Umoh, JU, and K. R. Thompson. 1994. "Surface heat flux, horizontal advection, and the seasonal evolution of water temperature on the Scotian Shelf." Journal of Geophysical Research.C.Oceans 99(10): 20-20,416. DOI: 10.1029/94JC01620
    Seasonal temperature variations on the Scotian Shelf penetrate to a depth of about 75 m. The net surface heat flux (Q) can explain about 85% of the annual cycle in the rate of change of mean temperature over this depth ...