Index Catalog // ScholarsArchive@OSU

Creator:: Wilson, Greg W., Özkan-Haller, H. Tuba, and Holman, Robert A.
Abstract:: We investigate the momentum balance in the surf zone, in a setting which is weakly varying in the alongshore direction. Our focus is on the role of nonlinear advective terms. Using numerical experiments, we find that advection tends to counteract alongshore variations in momentum flux, resulting in more uniform kinematics....
Resource Type:: Article
Full Text:: dependence of surf zone advection Greg W. Wilson,1 H. Tuba €Ozkan-Haller,1 and Robert A. Holman1 Received

Creator:: Landon, Kyle C., Wilson, Greg W., Özkan-Haller, H. Tuba, and MacMahan, Jamie H.
Abstract:: Velocity measurements from drifter GPS records are used in an ensemble-based data assimilation technique to extract the river bathymetry. The method is tested on a deep meandering reach and a shallow braided reach of the Kootenai River in Idaho. The Regional Ocean Modeling System (ROMS) is used to model numerous...
Resource Type:: Article
Full Text:: the Kootenai River, Idaho Landon, Kyle C., Greg W. Wilson, H. Tuba Özkan-Haller, Jamie H. MacMahan

Creator:: Wilson, Greg and Özkan-Haller, H. Tuba
Abstract:: A method is presented for estimating bathymetry in a river, based on observations of depth-averaged velocity during steady flow. The estimator minimizes a cost function that combines known information in the form of a prior estimate and measured data (including measurement noise). State augmentation is used to relate the measured...
Resource Type:: Article
Full Text:: Estimation of River Depths GREG WILSON AND H. TUBA ÖZKAN-HALLER College of Earth, Ocean, and Atmospheric

Creator:: Miller, Todd W., Brodeur, Richard D., Rau, Greg, and Omori, Koji
Abstract:: Eastern boundary current (EBC) upwelling zones are among the most productive of marine ecosystems globally and have been generalized in terms of their food web structure. Little empirically based evidence exists to suggest that there is any one form of trophic control of EBC systems and, because of logistical constraints,...
Resource Type:: Article
Full Text:: diet analysis Todd W. Miller1,*, Richard D. Brodeur2, Greg Rau3, Koji Omori1 1Center for Marine

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:: Parlour, James W. (James Wilson) and Halter, Albert N., 1927-
Abstract:: Published December 1970. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: AUTHORS: J. W. Parlour, former research assistant at the Oregon Agricultural Experiment Station, is

Creator:: Forsberg, Norman D., Smith, Brian W., Sower, Greg J., and Anderson, Kim A.
Abstract:: The current work sought to develop predictive models between time-weighted average polycyclic aromatic hydrocarbon (PAH) concentrations in the freely dissolved phase and those present in resident aquatic organisms. We deployed semipermeable membrane passive sampling devices (SPMDs) and collected resident crayfish (Pacifastacus leniusculus) at nine locations within and outside of the...
Full Text:: Norman D. Forsberg, Brian W. Smith, Greg J. Sower, Kim A. Anderson* Environmental and Molecular

Creator:: Forsberg, Norman D., Smith, Brian W., Sower, Greg J., and Anderson, Kim A.
Abstract:: The current work sought to develop predictive models between time-weighted average polycyclic aromatic hydrocarbon (PAH) concentrations in the freely dissolved phase and those present in resident aquatic organisms. We deployed semipermeable membrane passive sampling devices (SPMDs) and collected resident crayfish (Pacifastacus leniusculus) at nine locations within and outside of the...
Full Text:: Samplers and Partial Least-Squares Calibration Forsberg, N. D., Smith, B. W., Sower, G. J., & Anderson, K

Creator:: Forsberg, Norman D., Smith, Brian W., Sower, Greg J., and Anderson, Kim A.
Abstract:: The current work sought to develop predictive models between time-weighted average polycyclic aromatic hydrocarbon (PAH) concentrations in the freely dissolved phase and those present in resident aquatic organisms. We deployed semipermeable membrane passive sampling devices (SPMDs) and collected resident crayfish (Pacifastacus leniusculus) at nine locations within and outside of the...
Resource Type:: Article

Creator:: Gerber, H., Twohy, Cynthia, Gandrud, Bruce W., Heymsfield, Andrew J., McFarquhar, Greg M., DeMott, Paul J., and Rogers, David C.
Abstract:: Measurements of ice water content (IWC) and mean ice-crystal size and concentration made by two in-situ probes, C, VI and PVM, were compared on the DC-8 aircraft during SUCCESS flights in orographic ice clouds. The comparison of 1WC in these wave clouds, that formed at temperatures of about -38 °C...
Resource Type:: Article
Full Text:: . Heymsfield, Greg M. McFarquhar National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307

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