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Creator:: Mazzini, P. L. F. and Barth, John A.
Abstract:: Several mechanisms can drive vertical velocities in the coastal ocean, including wind-forcing and through gradients in the vorticity field generated by flow-topography interactions. A two-layer, steady, wind-driven, analytical model is applied to the major upwelling systems of Brazil : Cabo Frio (CF) and Cabo de Santa Marta (CSM) regions. Comparisons...
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Full Text:: transport in the Brazilian coastal upwelling regions P. L. F. Mazzini1 and J. A. Barth1 Received 13 March

Creator:: Kilcher, Levi F., Nash, Jonathan D., and Moum, James N.
Abstract:: Turbulence controls the composition of river plumes through mixing and alters the plume's trajectory by diffusing its momentum. While believed to play a crucial role in decelerating river-source waters, the turbulence stress in a near-field river plume has not previously been observationally quantified. In this study, finely resolved density, velocity,...
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Full Text:: plume The role of turbulence stress divergence in decelerating a river plume Levi F. Kilcher,1

Creator:: Cheng, T. K., Hill, D. F., Beamer, J., and García-Medina, G.
Abstract:: Total water levels (TWLs) within estuaries are influenced by tides, wind, offshore waves, and streamflow, all of which are uniquely affected by climate change. The magnitude of TWL associated with various return periods is relevant to understanding how the hydrodynamics of a bay or estuary may evolve under distinct climate...
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Full Text:: , and Hs for (a, b) the historic period, (c, d) the future simulation, and (e, f) a 1 month zoomed in

Creator:: Hill, D. F., Bruhis, N., Calos, S. E., Arendt, A., and Beamer, J.
Abstract:: A study of the freshwater discharge into the Gulf of Alaska (GOA) has been carried out. Using available streamgage data, regression equations were developed for monthly flows. These equations express discharge as a function of basin physical characteristics such as area, mean elevation, and land cover, and of basin meteorological...
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Full Text:: of Alaska Hill, D. F., Bruhis, N., Calos, S. E., Arendt, A., & Beamer, J. (2015). Spatial and

Creator:: Risien, Craig M., Reason, C. J. C., Shillington, F. A., and Chelton, Dudley B.
Abstract:: Wind stress variability over the Benguela upwelling system is considered using 16 months (01 August 1999 to 29 November 2000) of satellite-derived QuikSCAT wind data. Variability is investigated using a type of artificial neural network, the self-organizing map (SOM), and a wavelet analysis. The SOM and wavelet analysis are applied...
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Full Text:: upwelling system during 1999––2000 C. M. Risien,1 C. J. C. Reason, and F. A. Shillington Department of

Creator:: Kilcher, Levi F. and Nash, Jonathan D.
Abstract:: Time‐dependent buoyant plumes form at the outflow of tidally dominated estuaries. When estuary discharge velocity exceeds plume internal wave speed c, a sharp front forms at the plume’s leading edge that expands from the time‐dependent source. Using observations of the Columbia River tidal plume from multiple tidal cycles we characterize...
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Full Text:: limit, Benjamin pre- dicted, F = ffiffiffi 2 p . More recently, in a lock‐release framework, Shin et

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...
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Full Text:: infragravity waves (f < 0.05 Hz). The recent discovery of a third "band," shear waves [Oltman-Shay et al

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...
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Full Text:: Setup and Swash on a Natural Beach JOURNAL OF GEOPHYSICAL

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...
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Full Text:: through a term f/h, where f is Coriolis and h is the depth. For the nearshore Coriolis is neglected and

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:: bL/f, where L is a typical horizontal length scale. Under the traditional “beta plane approxima- tion

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