Index Catalog // ScholarsArchive@OSU

Impact of tide-topography interactions on basal melting of Larsen C Ice Shelf, Antarctica

Creator:: Mueller, R. D., Padman, L., Dinniman, M. S., Erofeeva, S. Y., Fricker, H. A., and King, M. A.
Abstract:: Basal melting of ice shelves around Antarctica contributes to formation of Antarctic Bottom Water and can affect global sea level by altering the offshore flow of grounded ice streams and glaciers. Tides influence ice shelf basal melt rate (w(b)) by contributing to ocean mixing and mean circulation as well as...
Resource Type:: Article
Full Text:: Larsen C Ice Shelf, Antarctica Impact of tide-topography interactions on basal melting of Larsen C Ice

Surf zone bathymetry and circulation predictions via data assimilation of remote sensing observations

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:: . Holman, M. C. Haller, D. A. Honegger, and C. C. Chickadel (2014), Surf zone bathymetry and circulation

Estimation of Time Averages from Irregularly Spaced Observations: With Application to Coastal Zone Color Scanner Estimates of Chlorophyll Concentration

Creator:: Chelton, Dudley B. and Schlax, Michael C.
Abstract:: A formalism is presented for quantifying the sampling error of an arbitrary linear estimate of a time-averaged quantity constructed from a time series of irregularly spaced observations at a fixed location. The method is applicable to any irregularly sampled time series; it is applied here to satellite observations of chlorophyll...
Resource Type:: Article
Full Text:: of Chlorophyll Concentration DUDLEY B. CHELTON AND MICHAEL C. SCHLAX College of Oceanography

The variation in the inherent optical properties of phytoplankton near an absorption peak as determined by various models of cell structure

Creator:: Zaneveld, J. Ronald and Kitchen, James C.
Abstract:: Optical oceanography models of attenuation and scattering properties often contain simple spectral relationships. Electromagnetic theory, however, predicts fluctuations in the spectra of the attenuation coefficients and scattering properties of substances at wavelengths near an absorption peak. We have modeled these effects for phytoplankton using homogeneous, two‐layered, and three‐layered sphere models...
Resource Type:: Article
Full Text:: . Ronald V. Zaneveld and James C. Kitchen College of Oceanic and Atmospheric Sciences, Oregon State

Remote sensing of wave roller lengths in the laboratory

Creator:: Haller, Merrick C. and Catalán, P. A.
Abstract:: The optical intensity signals from surf zone waves in a laboratory flume are analyzed using several different phase‐averaging techniques, and a methodology is developed for estimating wave roller lengths and local wave dissipation. The intensity signals (i.e., phase‐averaged intensity profiles) of individual breaking waves are compared with the wave profiles...
Resource Type:: Article
Full Text:: laboratory Merrick C. Haller1 and P. A. Catalán1,2 Received 3 November 2008; revised 20 April 2009

On the noncorrelation of the vertical structure of light scattering and chlorophyll α in case I waters

Creator:: Kitchen, James C. and Zaneveld, J. Ronald
Abstract:: The relationships between beam attenuation, absorption, suspended particle concentration, size distribution and pigment content are examined for a region where the particle concentration and pigment maxima are widely separated. Mie scattering analyses are performed on this data to predict the profiles of backscattering. It was found that absorption and scattering...
Resource Type:: Article
Full Text:: AND CHLOROP•LL a IN CASE I WATERS James C. Kitchen Sea Tech, Inc., Corvallis, Oregon J. Ronald

Shoreline variability from days to decades : results of long-term video imaging

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

Variability in satellite winds over the Benguela upwelling system during 1999–2000

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...
Resource Type:: Article
Full Text:: upwelling system during 1999––2000 C. M. Risien,1 C. J. C. Reason, and F. A. Shillington Department of

Evolution of 1996-1999 La Niña and El Niño conditions off the western coast of South America: A remote sensing perspective

Creator:: Carr, Mary-Elena, Strub, P. Ted, Thomas, Andrew C., and Blanco, Jose Luis
Abstract:: We present the evolution of oceanographic conditions off the western coast of South America between 1996 and 1999, including the cold periods of 1996 and 1998–1999 and the 1997–1998 El Niño, using satellite observations of sea level, winds, sea surface temperature (SST), and chlorophyll concentration. Following a period of cold...
Resource Type:: Article
Full Text:: Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, USA Andrew C. Thomas School

Microwave backscattering from surf zone waves

Creator:: Catalán, Patricio A., Haller, Merrick C., and Plant, William J.
Abstract:: The microwave backscatter properties of surf zone waves are analyzed using field observations. By utilizing a preexisting, independent, water surface discrimination technique, the microwave returns were extracted along individual waveforms and the data from shoaling (steepening) waves, surf zone breaking waves, and remnant foam were separated and quantified. In addition,...
Resource Type:: Article
Full Text:: backscattering from surf zone waves Catalán, P. A., M. C. Haller, and W. J. Plant. (2014). Microwave

ScholarsArchive@OSU

Impact of tide-topography interactions on basal melting of Larsen C Ice Shelf, Antarctica

Surf zone bathymetry and circulation predictions via data assimilation of remote sensing observations

Estimation of Time Averages from Irregularly Spaced Observations: With Application to Coastal Zone Color Scanner Estimates of Chlorophyll Concentration

The variation in the inherent optical properties of phytoplankton near an absorption peak as determined by various models of cell structure

Remote sensing of wave roller lengths in the laboratory

On the noncorrelation of the vertical structure of light scattering and chlorophyll α in case I waters

Shoreline variability from days to decades : results of long-term video imaging

Variability in satellite winds over the Benguela upwelling system during 1999–2000

Evolution of 1996-1999 La Niña and El Niño conditions off the western coast of South America: A remote sensing perspective

Microwave backscattering from surf zone waves

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