Index Catalog // ScholarsArchive@OSU

Creator:: Holman, R. A.
Abstract:: Field measurements of onshore and longshore velocities in the surf zone have been obtained on Martinique Beach, Nova Scotia, for the purpose of investigating the dynamics of the infragravity band (0.003- 0.03 Hz) of the spectra. A total of35 data runs were obtained during a 1-week period. Of particular interest...
Resource Type:: Article
Full Text:: cusps, at. Geophys. Res., 80, 2997-3012, 1975. Holman, R. A., Infragravity waves on beaches, Ph.D

Creator:: Pianca, C., Holman, R., and Siegle, E.
Abstract:: The present work characterizes the time-space scales of variability and forcing dependencies of a unique 26 year record of daily to hourly shoreline data from a steep beach at Duck, North Carolina. Shoreline positions over a 1500 m alongshore span were estimated using a new algorithm called ASLIM based on...
Resource Type:: Article
Full Text:: imaging Pianca, C., Holman, R., & Siegle, E. (2015). Shoreline variability from days to decades: Results

Creator:: Holman, R. A. and Bowen, A. J.
Abstract:: In shallow water, any two waves of the same frequency are shown to produce complex patterns of drift velocity above the sea bed. If the longshore components λ₁, λ₂ of the wave numbers of the two waves are different, these steady flow patterns exhibit a longshore periodicity of wave number...
Resource Type:: Article
Full Text:: Bars, Bumps, and Holes' Models for the Generation of Complex Beach Topography R. A. HOLMAN AND A. J

Creator:: Lippmann, T. C. and Holman, R. A.
Abstract:: The spatial and temporal variability of nearshore sand bar morphology is quantified using a unique data set spanning 2 years. The data consist of daily time exposure images of incident wave breaking on an open coast sandy beach which may be used to infer bar morphology (Lippmann and Holman, 1989)....
Resource Type:: Article
Full Text:: Temporal Variability of Sand Bar Morphology T. C. LIPPMANN AND R. A. HOLMAN College of Oceanography

Creator:: Holman, R. A. and Bowen, A. J.
Abstract:: Synchronous runup records were collected from 14 locations spaced irregularly over a 7 km stretch of a low-slope beach. The significant runup height, herein defined as the significant vertical excursion of water level at the shoreline, was typically 2 m, 60% of the incident significant wave height at the breakpoint....
Resource Type:: Article
Full Text:: Wave Motions R. A. HOLMAN School of Oceanography, Oregon State University A. J. BOWEN Department

Creator:: Power, H. E., Holman, R. A., and Baldock, T. E.
Abstract:: Optical remote sensing is used to measure flow patterns in the swash zone. Timestack images are analyzed to measure the asymmetry and the relative duration of the inflow into the swash zone. This varies significantly between individual swashes, contrary to the classical analytical swash model for runup induced by bores,...
Resource Type:: Article
Full Text:: optical remote sensing of swash zone flow patterns H. E. Power,1 R. A. Holman,2 and T. E. Baldock1

Creator:: Wilson, G. W., Özkan-Haller, H. Tuba, and Holman, R. A.
Abstract:: A methodology is described for assimilating observations in a steady state twodimensional horizontal (2‐DH) model of nearshore hydrodynamics (waves and currents), using an ensemble‐based statistical estimator. In this application, we treat bathymetry as a model parameter, which is subject to a specified prior uncertainty. The statistical estimator uses state augmentation...
Resource Type:: Article
Full Text:: inversion in a two‐dimensional horizontal surf zone model G. W. Wilson,1 H. T. Özkan‐Haller,1 and R. A

Creator:: Guedes, R. M. C., Bryan, K. R., Coco, G., and Holman, R. A.
Abstract:: Swash hydrodynamics were investigated on an intermediate beach using runup data obtained from video images. Under mild, near-constant, offshore wave conditions, the presence of a sandbar and the tidally controlled water depth over its crest determined whether most of the incoming waves broke before reaching the shoreline. This forced a...
Resource Type:: Article
Full Text:: secondary waves. Citation: Guedes, R. M. C., K. R. Bryan, G. Coco, and R. A. Holman (2011), The effects of

Creator:: Ruessink, B. G., Wijnberg, K. M., Holman, R. A., Kuriyama, Y., and van Enckevort, I. M. J.
Abstract:: Long-term (>years) bathymetric data sets collected in six multiple near-shore sandbar systems were analyzed with complex empirical orthogonal function analysis to quantify intersite differences and similarities in cyclic offshore progressive bar behavior. The observations came from a 37-year annually sampled data set of four regions along the Dutch coast (spanning...
Resource Type:: Article
Full Text:: behavior B. G. Ruessink,1 K. M. Wijnberg,2 R. A. Holman,3 Y. Kuriyama,4 and I. M. J. van Enckevort1

Creator:: Wilson, G. W., Özkan-Haller, H. Tuba, Holman, R. A., Haller, M. C., Honegger, D. A., and Chickadel, C. C.
Abstract:: Bathymetry is a major factor in determining nearshore and surf zone wave transformation and currents, yet is often poorly known. This can lead to inaccuracy in numerical model predictions. Here bathymetry is estimated as an uncertain parameter in a data assimilation system, using the ensemble Kalman filter (EnKF). The system...
Resource Type:: Article
Full Text:: . Wilson, greg.wilson@dal.ca Citation: Wilson, G. W., H. T. €Ozkan-Haller, R. A. Holman, M. C. Haller, D

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