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Filtering by: Creator Breese, W. P. Remove constraint Creator: Breese, W. P. Has journal sim Journal of Physical Oceanography Remove constraint Has journal sim: Journal of Physical Oceanography

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  • Objective Maps of Near-Surface Flow States near Point Conception, California

    Creator:
    Dever, E. P.
    Abstract:
    Objective streamfunction and velocity potential maps of three commonly observed flow states near Point Conception, California, are derived from moored current-meter and drifter observations. The states are defined using current-meter data. Drifter data are sorted by flow state and averaged within spatial bins to resolve their spatial structures. Spatial correlations...
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    21c 5 P(A 1 «I) w, (6) and the OA estimate of x is 21x 5 Q(A 1 «I) w, (7) FEBRUARY 2004 451D E V E

  • Wind-Forced Cross-Shelf Circulation on the Northern California Shelf

    Creator:
    Dever, E. P.
    Abstract:
    Velocity time series are used to study cross-shelf circulation on the northern California shelf and to examine classical ideas of locally wind-forced cross-shelf circulation. A simple linear two-dimensional model of cross-shelf transport is compared to estimates of cross-shelf transport in the near surface, interior, and near bottom. In winter, when...
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    Article
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    1566 VOLUME 27J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y

  • Decay of Turbulence in the Upper Ocean following Sudden Isolation from Surface Forcing

    Creator:
    Smyth, W. D., Zavialov, P. O., and Moum, J. N.
    Abstract:
    Measurements of velocity, hydrography, surface meteorology, and microstructure were made through several squall events during a westerly wind burst that occurred in the Western Pacific warm pool in December 1992. Sustained wind forcing generated a weakly stratified turbulent surface layer that extended to the top of the main thermocline. Following...
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    810 VOLUME 27J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y

  • Instabilities of a Baroclinic, Double Diffusive Frontal Zone

    Creator:
    Smyth, W. D.
    Abstract:
    The linear theory of double diffusive interleaving is extended to take account of baroclinic effects. This study goes beyond previous studies by including the possibility of modes with nonzero tilt in the alongfront direction, which allows for advection by the baroclinic frontal flow. This requires that the stability equations be...
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    Instabilities of a Baroclinic, Double Diffusive Frontal Zone W

  • Large-Scale Forcing of the Agulhas Variability: The Seasonal Cycle

    Creator:
    Matano, R. P., Beier, E. J., Strub, P. T., and Tokmakian, R.
    Abstract:
    In this article the authors examine the kinematics and dynamics of the seasonal cycle in the western Indian Ocean in an eddy-permitting global simulation [Parallel Ocean Circulation Model, model run 4C (POCM-4C)]. Seasonal changes of the transport of the Agulhas Current are linked to the large-scale circulation in the tropical...
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    . Res. Lett., 26, 3321–3324. de Ruijter, W. P. M., A. Biastoch, S. S. Drijfhout, J. R. E. Lutjeharms, R

  • Modeling the Wind-Driven Variability of the South Indian Ocean

    Creator:
    Matano, R. P., Simionato, C. G., and Strub, P. T.
    Abstract:
    This article describes the results of numerical experiments carried out with a general circulation ocean model to investigate the effect of the seasonal cycle of the wind forcing on the Agulhas transport. Two cases are described. The first was initialized with temperature and salinity values obtained by horizontally averaging Levitus...
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    Stream transports. Progress in Ocean- ography, Vol. 14, Pergamon, 7–40. Boudra, D. B., and W. P. M. de

  • Annual Mean Surface Heat Fluxes in the Tropical Pacific Ocean

    Creator:
    Weare, Bryan C., Strub, P. Ted, and Samuel, Michael D.
    Abstract:
    The four components of the long-term annual mean net surface heating of the tropical Pacific Ocean between 30°N and 40°S are calculated and portrayed. These flux elements were derived by using the bulk formulas and about 5 million marine weather reports for the years 1957–76. In addition to illustrating the...
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    Article

  • The Impact of Boundary Conditions on the Upstream Spreading of Bottom-Trapped Plumes

    Creator:
    Matano, Ricardo P. and Palma, Elbio D.
    Abstract:
    This study shows that simulations of bottom-trapped plumes in periodic or closed domains generate a spurious cyclonic current that arrests the natural tendency of the plume to move upstream. Furthermore, it also shows that attempts to obstruct the upstream spreading lead to a bias of the fundamental characteristics of the...
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    . Smolarkiewicz, P. K., and W. W. Grabowski, 1990: The multi- dimensional positive definite advection transport

  • On Symmetric Instabilities in Oceanic Bottom Boundary Layers

    Creator:
    Allen, J. S. and Newberger, P. A.
    Abstract:
    Model studies of two-dimensional, time-dependent, wind-forced, stratified downwelling circulation on the continental shelf have shown that the near-bottom offshore flow can develop time- and space-dependent fluctuations involving spatially periodic separation and reattachment of the bottom boundary layer and accompanying recirculation cells. Based primarily on the observation that the potential vorticity...
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    (u, y , w), D ] 5 1 u ·= , (2.2)1 2Dt ]t and where p is the pressure, t is time, subscripts (x, y

  • The Upstream Spreading of Bottom-Trapped Plumes

    Creator:
    Matano, Ricardo P. and Palma, Elbio D.
    Abstract:
    It is well known that numerical simulations of freshwater discharges produce plumes that spread in the direction opposite to that of the propagation of coastally trapped waves (the upstream direction). The lack of a theory explaining these motions in unforced environments deemed the numerical results suspect. Thus, it became a...
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    ss se ct io n in E X P 1 . S h o w n a re (t o p ) th e d e n si ty a n o m a li e