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Creator:: Arbic, Brian K., Scott, Robert B., Chelton, Dudley B., Richman, James G., and Shriver, Jay F.
Abstract:: This paper examines the effect of “stencil width” on surface ocean geostrophic velocity and vorticity estimated from differentiating gridded satellite altimeter sea surface height products. In oceanographic applications, the value of the first derivative at a central grid point is generally obtained by differencing the sea surface heights at adjacent...
Resource Type:: Article
Full Text:: . Arbic,1 Robert B. Scott,2,3 Dudley B. Chelton,4 James G. Richman,5 and Jay F. Shriver5 Received 7 June

Creator:: Howd, Peter A., Oltman-Shay, Joan, and Holman, Robert A.
Abstract:: The wave-induced velocity field in the nearshore is composed of contributions from incident wind waves (f > 0.05 Hz), surface infragravity waves (f < 0.05 Hz, lkl < (σ²/gβ) and shear waves (f < 0.05 Hz, lkl > σ²/gβ), where ƒ is the frequency, σ = 2πf, k is the...
Resource Type:: Article
Full Text:: Partitioning in the Trough of a Barred Beach PETER A. HOWD, JOAN OLTMAN=SHAY, 1 AND ROBERT A. HOLMAN

Creator:: Kosro, P. Michael, 1951-, Huyer, Adriana, 1945-, Ramp, S. R., Smith, Robert L. (Robert Lloyd), 1935-, Chavez, F. P., Cowles, Timothy J., Abbott, Mark R., Strub, P. Ted, Barber, R. T., Jessen, P., and Small, Lawrence F.
Abstract:: Physical and biological fields in the coastal transition zone off northern California were measured during February, March, May and June 1987 in an extended alongshore region between 60 km and 150 km offshore. The spring transition, as seen in coastal sea level and winds, occurred in mid-March. Surface variability during...
Resource Type:: Article

Creator:: Huyer, Adrianna, 1945-, Sobey, E. J. C., and Smith, Robert L. (Robert Lloyd), 1935-
Abstract:: Current meter moorings maintained over the Oregon continental shelf in 1973 and 1975 clearly show the difference between winter and spring oceanographic regimes and the rapid transition between the regimes. In winter the mean alongshore current is northward at all depths and strongest near shore; there is no mean vertical...
Resource Type:: Article
Full Text:: defined by the Sunflower data. 6998 HUYER ET AL.: SPRING CURRENTS OFF OREGON 6O 50' 23m J F M

Creator:: Anderson, Lain, Huyer, Adriana, 1945-, and Smith, Robert L. (Robert Lloyd), 1935-
Abstract:: Near‐inertial motions were observed at all current meters in an array of five moorings spanning the continental margin off central Oregon during October 1977 to January 1978. All moorings were between 10 and 130 km from shore, in water depths between 100 m and 2500 m. Largest near‐inertial amplitudes (>30...
Resource Type:: Article
Full Text:: ADRIANA HUYER AND ROBERT L. SMITH School of Oceanography, Oregon State University, Corvallis, Oregon

Creator:: Bowen, A. J. and Holman, Robert A.
Abstract:: A new class of nearshore waves based on the shear instability of a steady longshore current is discussed. The dynamics depend on the conservation of potential vorticity but with the background vorticity field, traditionally the role of Coriolis in larger scale flows, supplied by the shear structure of the longshore...
Resource Type:: Article
Full Text:: through a term f/h, where f is Coriolis and h is the depth. For the nearshore Coriolis is neglected and

Creator:: Sallenger, Asbury H., Jr. and Holman, Robert A.
Abstract:: Measurements of cross-shore flow were made across the surf zone during a storm as a nearshore bar became better developed and migrated offshore. Measured infragravity band spectra were compared to synthetic spectra calculated numerically over the natural barred profile assuming a white run-up spectrum of leaky mode or high-mode edge...
Resource Type:: Article
Full Text:: Barred Profile ASBURY H. $ALLENGER, JR. U.S. Geological Survey, Reston, Virginia ROBERT A. HOLMAN

Creator:: Sallenger, A. H., Jr. and Holman, Robert A.
Abstract:: Wave setup and swash statistics were calculated from 154 runup time series steep beach under incident waves varying from 0.4 to 4.0 m significant wave height. incident wave height, setup, swash height, and total runup (the sum of setup and were found to vary linearly with the surf zone similarity...
Resource Type:: Article
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Creator:: Brown, J., Barton, E.D., Trasvina, A., Velez, H.S., Kosro, P. Michael, 1951-, and Smith, Robert L. (Robert Lloyd), 1935-
Abstract:: Three upward looking acoustic Doppler current profilers (ADCP) were deployed beneath meteorological buoys in the Gulf of Tehuantepec, Mexico, during winter 1988-1989. Hourly averaged wind speed data from the buoys and from ship when in the vicinity were compared with surface acoustic backscatter intensity recorded at the ADCPs. The backscatter...
Resource Type:: Article
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Creator:: Trasviña, A., Barton, E.D., Brown, J., Velez, H.S., Kosro, P. Michael, 1951-, and Smith, Robert L. (Robert Lloyd), 1935-
Abstract:: Since the early surveys carried out by the Eastern Tropical Pacific (EASTROPIC) and Scripps Tuna Oceanographic Research (STOR) projects in the tropical Pacific off Mexico, the northerly winds which blow over the Gulf of Tehuantepec were described as an Important factor controlling the dynamics of this coastal ocean. In January-February...
Resource Type:: Article
Full Text:: . Trasvifia Departamento de Oceanograffa F/sica, Centro de Investigaci6n Cient/fica y de Educaci6n Superior

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