Search Constraints

Start Over
Filtering by: Creator Cheramie, H. S. Remove constraint Creator: Cheramie, H. S. Has journal sim Journal of Physical Oceanography Remove constraint Has journal sim: Journal of Physical Oceanography

Search Results

  • The Global S₁ Tide

    Creator:
    Ray, Richard D. and Egbert, Gary D.
    Abstract:
    The small S₁ ocean tide is caused primarily by diurnal atmospheric pressure loading. Its excitation is therefore unlike any other diurnal tide; in particular, pressure loading is maximum near the equator where the diurnal gravitational potential is zero. The global character of the S₁ tide is here determined by numerical...
    Resource Type:
    Article
    Full Text:
    phoc_34_807.1922_1935.tp 1922 VOLUME 34J O U R N A L O F P H Y S I C A

  • On the Effect of Bottom Friction on Barotropic Motion Over the Continental Shelf

    Creator:
    Brink, Kenneth H. and Allen, J. S.
    Abstract:
    Observations of the velocity fields over the continental shelf and slope off Oregon and off Peru have shown that there is a phase difference in the onshore-offshore direction, with the velocity fluctuations nearshore leading those offshore in time. It is shown here that the effects of bottom Ekman layer friction...
    Resource Type:
    Article

  • Coastal Trapped Waves in a Stratified Ocean

    Creator:
    Allen, J. S.
    Abstract:
    A two-layer model is used to study the properties of free coastal trapped waves which propagate over an idealized continental shelf and continental slope bottom topography. With both stratification and depth variations that are typical of continental shelf and slope regions, barotropic shelf waves and baroclinic internal Kelvin waves axe...
    Resource Type:
    Article

  • A Study of Low-Frequency Fluctuations Near the Peru Coast

    Creator:
    Brink, Kenneth H., Allen, J. S., and Smith, Robert L.
    Abstract:
    An analysis is presented of low-frequency (<0.4 cpd) fluctuations in currents, temperature and tide gage data collected during the March-September 1976 segment of the CUEA JOINT-II experiment off the coast of Peru. The observations were made near 15°S, a region of particularly strong and persistent coastal upwelling. Conclusions about the...
    Resource Type:
    Article

  • On the Momentum, Vorticity and Mass Balance on the Oregon Shelf

    Creator:
    Allen, J. S. and Kundu, Pijush K.
    Abstract:
    Velocity measurements from the continental shelf off Oregon taken during the Coastal Upwelling Experiment CUE-2 in the summer of 1973 are utilized to investigate momentum, vorticity and mass balance relationships for subinertial frequency (ω < 0.6 cpd) current fluctuations. Measurements from stations in water of depths of 54, 100 and...
    Resource Type:
    Article

  • On Vertically Propagating Coastal Kelvin Waves at Low Latitudes

    Creator:
    Romea, R. D. and Allen, J. S.
    Abstract:
    Vertically propagating coastal internal Kelvin waves (IKWs) forward by the alongshore component of the wind at the coast are studied, utilizing an ƒ-plane model of a continuously stratified ocean with a vertical eastern boundary. With an infinitely deep ocean, several initial value problems that illustrate the basic properties of the...
    Resource Type:
    Article

  • Measurements of Form and Frictional Drags over a Rough Topographic Bank

    Creator:
    Wijesekera, H. W., Jarosz, E., Teague, W. J., Wang, D. W., Fribance, D. B., Moum, J. N., and Warner, S. J.
    Abstract:
    Pressure differences across topography generate a form drag that opposes the flow in the water column, and viscous and pressure forces acting on roughness elements of the topographic surface generate a frictional drag on the bottom. Form drag and bottom roughness lengths were estimated over the East Flower Garden Bank...
    Resource Type:
    Article
    Full Text:
    Topographic Bank Measurements of Form and Frictional Drags over a Rough Topographic Bank Wijesekera, H. W

  • The Effect of Rainfall on the Surface Layer during a Westerly Wind Burst in the Western Equatorial Pacific

    Creator:
    Wijesekera, H. W., Paulson, C. A., and Huyer, A.
    Abstract:
    Measurements of a fresh surface anomaly (fresh lens) produced by rainfall during a westerly wind burst have been analyzed. The measurements were made in December 1992 as part of the Coupled Ocean–Atmosphere Response Experiment in the western equatorial Pacific (2°S, 156°E). Measurements included radar estimates of rainfall, upper-ocean temperature (T),...
    Resource Type:
    Article
    Full Text:
    phoc_29_406.612_632 612 VOLUME 29J O U R N A L O F P H Y S I C A L O C

  • Mixing in a Moderately Sheared Salt-Fingering Layer

    Creator:
    Smyth, W. D. and Kimura, S.
    Abstract:
    Mixing due to sheared salt fingers is studied by means of direct numerical simulations (DNS) of a double-diffusively unstable shear layer. The focus is on the “moderate shear” case, where shear is strong enough to produce Kelvin–Helmholtz (KH) instability but not strong enough to produce the subharmonic pairing instability. This...
    Resource Type:
    Article
    Full Text:
    considered here. 1364 J 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 VOLUME 41 DOI: 10.1175

  • Normal-Mode Instabilities of a Time-Dependent Coastal Upwelling Jet

    Creator:
    Durski, S. M., Samelson, R. M., and Allen, J. S.
    Abstract:
    The linear stability of a nearly time-periodic, nonlinear, coastal upwelling–downwelling circulation, over alongshore-uniform topography, driven by a time-periodic wind stress is investigated using numerical methods. The near-periodic alongshore-uniform basic flow is obtained by forcing a primitive equation numerical model of coastal ocean circulation with periodic wind stress. Disturbance growth on...
    Resource Type:
    Article
    Full Text:
    97331-5503. E-mail: sdurski@coas.oregonstate.edu 2056 J O U R N A L O F P H Y S I C A L O C E A N O G R