Index Catalog // ScholarsArchive@OSU

Dune erosion models and swash zone kinematics from remote video observations

Creator:: Palmsten, Margaret L.
Abstract:: The subaerial beach, composed of sand dunes and the foreshore, provides a natural buffer zone between vulnerable land and the dissipation of storm wave energy due to wave breaking. The natural beauty of this region is attractive to people, and as a result, significant investment has been placed in this...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Margaret L. Palmsten for the degree of Doctor of Philosophy in

Development of 2D models to estimate nearshore bathymetry and sediment transport

Creator:: Splinter, Kristen D.
Abstract:: We examine the interactions and feedbacks between bathymetry, waves, currents, and sediment transport. The ﬁrst two pro jects focus on the use of remote sensing techniques to expand our knowledge of the nearshore. Due to the plethora of snap-shot data that is available from satellites and their distribution via Google...
Resource Type:: Dissertation
Full Text:: . Holman We examine the interactions and feedbacks between bathymetry, waves, currents, and sediment

The sediment response of a dissipative beach to variations in wave climate

Creator:: Haxel, Joseph H.
Abstract:: Using wave and wind data from nearby buoys and gauges, real time kinematic global positioning system (RTK-GPS) and light detection and ranging (lidar) topographic survey data, and a robust video record, we have quantified the Large Scale Coastal Behavior (LSCB) of a dissipative end member beach in the Pacific Northwest....
Resource Type:: Masters Thesis
Full Text:: Dissipative Beach toVariations in Wave Climate. Abstract Approved: Robert A. Holman Using wave and wind

The statistics and kinematics of transverse sand bars on an open coast

Creator:: Konicki, Kathryn Maria
Resource Type:: Masters Thesis
Full Text:: Kinematics of Transverse Sand Bars on an Open Coast. Abstract Approved: Robert A. Holman Since a large

The role of morphologic feedback in surf zone sand bar response

Creator:: Plant, Nathaniel Granger
Resource Type:: Dissertation
Full Text:: Morphologic Feedback in Surf Zone Sand Bar Response. Abstract approved: Robert A. Holman This study showed

Estimation of wave phase speed and nearshore bathymetry using video techniques

Creator:: Stockdon, Hilary F.
Resource Type:: Masters Thesis
Full Text:: Speed and Nearshore Bathymetry Using Video Techniques. Abstract Robert A. Holman The beach profile

Foreshore dynamics : swash motions and topographic interactions on natural beaches

Creator:: Holland, K. Todd
Resource Type:: Dissertation
Full Text:: Motions and Topographic Interactions on Natural Beaches Abstract approved: Robert A. Holman The

Quantitative analysis of nearshore morphological variability based on video imaging

Creator:: Alexander, Patricia Soupy
Abstract:: In the past, classification systems for the analysis of morphodynamic variability have been developed in an attempt to understand large scale coastal behavior. The motivation behind the creation of these classification systems has been to provide a framework of analysis, in order to understand large scale response to seasonal variability,...
Resource Type:: Masters Thesis
Full Text:: of Nearshore Morphological Variability Based on Video Imaging. Abstract Approved: Robert A. Holman

Remote measurements of waves and currents over complex bathymetry

Creator:: Chickadel, Carmine C. (Carmine Christopher)
Abstract:: Waves are the primary input of energy in the nearshore region, and together with the currents forced through the transfer of momentum that occurs during the wave breaking process they are the principal mechanism for sediment transport in the nearshore. The basic physics of waves and currents are thought to...
Resource Type:: Dissertation
Full Text:: : ___________________________________________________ Robert A. Holman Waves are the primary input of energy in the nearshore region, and

Predicting the longshore-variable coastal response to hurricanes

Creator:: Stockdon, Hilary F.
Abstract:: The longshore variability of the coastal response to hurricanes may be examined within the framework of a storm-impact scaling model that compares spatially-variable beach morphology and fluid forcing. The relative elevations of dune height and storm-induced water levels are used to define three impact regimes (swash, collision, and overwash), within...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________ Robert A. Holman The longshore variability of the coastal

Remote sensing of radiation stress gradients from optical imagery

Creator:: Killian, Jason R.
Abstract:: Wave-induced circulation is the defining characteristic of the nearshore. Within this region, the constant feedback cycle between incoming waves, wave-generated currents, and the mobile sediment bed is responsible for the evolution of complex patterns in nearshore and beach morphology. Central to our understanding of this system is knowledge of the...
Resource Type:: Masters Thesis
Full Text:: Stress Gradients from Optical Imagery Abstract approved: Robert A. Holman Wave-induced circulation is

Field validation of a nearshore circulation model for alongshore-nonuniform flows

Creator:: Wilson, Gregory W.
Abstract:: We investigate, theoretically and experimentally, the problem of modeling depth-integrated (2DH) surf zone circulation on an alongshore-nonuniform natural beach, with waves approaching from an arbitrary angle. An approximate theoretical model is developed, which captures the important effect of advection in the alongshore dynamics, and shows that a nondimensional parameter Re[subscript]s...
Resource Type:: Masters Thesis
Full Text:: Robert A. Holman We investigate, theoretically and experimentally, the problem of modeling depth

Laboratory investigation of dune erosion using stereo video

Creator:: Palmsten, Margaret L. and Holman, Robert A.
Abstract:: Simple parameterizations of dune erosion are necessary for forecasting erosion potential prior to an oncoming storm. Dune erosion may be parameterized in terms of the elevation of the total water level (composed of surge, tide, and wave runup) above the dune base and period of exposure of the dune to...
Resource Type:: Article
Full Text:: erosion using stereo video Margaret L. Palmsten a,b,⁎, Robert A. Holman a a College of Oceanic and

Numerical model investigations of wind-driven coastal circulation

Creator:: Cervantes, Brandy T.
Abstract:: The effects of wind forcing on coastal ocean circulation are studied using a numerical modeling approach. The first region of interest is on the North Carolina shelf, where the Coastal Ocean Processes (CoOP) Inner Shelf Study (ISS) took place during August - November 1994. ISS observations are used to initialize,...
Resource Type:: Dissertation
Full Text:: committee John A. Barth, Robert N. Miller, Roger Samelson, Rob Holman, and the graduate representative Todd

Intersite comparison of interannual nearshore bar behavior

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

Assessing physical vulnerability of the coast in light of a changing climate : an integrated, multi-hazard, multi-timescale approach

Creator:: Harris, Erica L.
Abstract:: Hazards threaten coastal communities and ecosystems over a wide range of spatiotemporal scales. One of the most pressing concerns for coastal property owners, decision makers, and researchers is the uncertain role that a changing climate will have on the intensity and frequency of these hazards. The significant uncertainties associated with...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Erica L

Swash zone sediment suspension and transport

Creator:: Puleo, Jack A.
Abstract:: Swash zone processes are of significant importance to foreshore morphologic change. This thesis addresses the importance of the uprush and backwash fluid motions and flow duration effects to the resulting sediment transport. The analysis relates the field observations to well known sediment transport formulations as well as investigates the importance...
Resource Type:: Masters Thesis
Full Text:: science from a different viewpoint. i owe much of this insight to Rob Holman and Rcg Beach who I

Hydrothermal activity along the northern Mid-Atlantic Ridge and in the Bransfield Strait backarc basin, Antarctica

Creator:: Chin, Carol Sue
Resource Type:: Dissertation
Full Text:: . Sci. Lett., 6, 213-220. Corliss, J. B., J. Dymond, L. I. Gordon, J. M. Edmond, R. P. von Herzen, R

Laboratory investigations of the natural fluorescence of marine phytoplankton

Creator:: Laney, Samuel R.
Abstract:: The influence of nitrate availability and irradiance on phytoplankton natural fluorescence was investigated in laboratory cultures of the marine diatom Thalassiosira weissflogii (Bacillariophyceae). Two cultures of phytoplankton, differing only in the nitrate-limited growth rate, were compared to learn how increases in irradiance influences natural fluorescence. Instrumentation was developed for these...
Resource Type:: Masters Thesis
Full Text:: ........................................................................................................... 77 4.4.1 <l>p in Different Models of PSII Structure .......................................... 77

Seasonal renewal of the California Current: The spring transition off California

Creator:: Lynn, Ronald J., Bograd, Steven J., Chereskin, Teresa K., and Huyer, Adriana, 1945-
Abstract:: A pair of high-resolution oceanographic surveys in March and April 1995 revealed a large and rapid transition from late winter to spring conditions in the coastal zone off central and southern California. These data are unique in capturing the detailed three-dimensional physical structure of and biological response to the spring...
Resource Type:: Article
Full Text:: - eter and a Chelsea Instruments Ltd. Aquatracka III Fluorometer. Water samples were collected every

Wave competence and morphodynamics of boulder and gravel beaches

Creator:: Lorang, Mark
Resource Type:: Dissertation
Full Text:: boulders. The analysis uses a mobility ratio, r, / r, expressed as the shear stress, = l/8fpU2, during

Seconds to hour scale photosynthetic responses in marine microalgae

Creator:: Laney, Samuel R.
Abstract:: Our view of phytoplankton has historically revolved around their inability to control their location in space. The term phytoplankton itself underscores this particular difference between phytoplankton and their sessile terrestrial counterparts. Yet there are other differences between land plants and the phytoplankton that are perhaps equally important, beyond this sessile-planktonic...
Resource Type:: Dissertation
Full Text:: . The optical apparatus used to determine hI[n] of the Chelsea Marine Systems Fasttracka fluorometer

Forcing a three-dimensional, hydrostatic, primitive-equation model for application in the surf zone : 2. application to DUCK94

Creator:: Newberger, P. A. and Allen, John S.
Abstract:: A three‐dimensional primitive‐equation model for application to the nearshore surf zone has been developed. This model, an extension of the Princeton Ocean Model (POM), predicts the wave‐averaged circulation forced by breaking waves. All of the features of the original POM are retained in the extended model so that applications can...
Resource Type:: Article
Full Text:: turbulent kinetic energy, and q2l, which together give the turbulent length scale l. The vertical velocity

High-frequency measurement of seawater chemistry: Flow-injection analysis of macronutrients

Creator:: Hales, Burke, van Geen, Alexander, and Takahashi, Taro
Abstract:: We adapted a commercially available flow‐injection autoanalyzer (Lachat Quik‐Chem 8000) to measure seawater nitrate concentrations at a rate of nearly 0.1 Hz and phosphate and silicate concentrations at a rate half that. Several minor improvements, including reduced sample‐loop size, high sample flushing rate, modified carrier chemistry, and use of peak...
Resource Type:: Article
Full Text:: ; currently marketed by Chelsea Instrument: http://www.chelsea.co.uk), which is capable of undulating between

A geographic information system and remote sensing to support community-based coastal hazards planning in the Netarts Littoral Cell, Oregon

Creator:: Revell, David
Abstract:: The 14-km long Netarts Littoral Cell, located on the northern Oregon coast, experienced episodic erosion as a result of the severe 1997-98 El Nino and 1998-99 La Nina. The erosion events led to the development of a unique partnership bridging scientists, stakeholders, and various planning agencies. To address these erosion...
Resource Type:: Capstone Project
Full Text:: , Marcus, Niles and Mike. Others at Oregon State have also inspired and educated me including: Rob Holman

Parameterizing the natural fluorescence kinetics of Thalassiosira weissflogii

Creator:: Laney, Samuel R., Letelier, Ricardo M., and Abbott, Mark R.
Abstract:: We examined variability in the natural fluorescence yield of a neritic diatom, Thalassiosira weissflogii, in continuous cultures. In this species, kinetics in natural fluorescence yield over time scales less than a photoperiod were characterized by sharp decreases, occurring at irradiance intensities that presumably coincide with the onset of nonphotochemical fluorescence...
Resource Type:: Article
Full Text:: Repetition Rate fluorom- eter (FRRF, Fasttracka, Chelsea Instruments). Circulation of the culture was rapid

Primary production dynamics in the North Pacific subtropical gyre

Creator:: Corno, Guido
Abstract:: The North Pacific subtropical gyre (NPSG), once considered to be a biological desert due to low primary production (PP) and its associated variability, has been found more productive and variable than previously thought. The environmental conditions controlling this relatively high PP variability are yet to be elucidated, despite important implications...
Resource Type:: Dissertation
Full Text:: : 199-213. Campbell, L. and Vaulot, D. 1993. Photosynthetic picoplankton community structure in the

Hydrography and heat flux in hydrothermal regions

Creator:: Wilson, Cara, 1967-
Resource Type:: Dissertation
Full Text:: , 6351- 6345, 1993. Chin, C. S., G. P. Kllnkhammer, C. Wilson, L. A. Lawyer, and J. Lupton, Hydrothermal

Geochemical tracers of Arctic river waters

Creator:: Guay, Christopher K. H.
Resource Type:: Dissertation
Full Text:: ancillary data contributed by Dr. Tim Boyd, Dr. Rob Holman, Dr. Wieslaw Maslowski, Mark Ortermeyer, Dr

Studies on the spatial variability of phytoplankton physiology and biomass in the Oregon upwelling system

Creator:: Sanders, Rachel B.
Abstract:: The Oregon upwelling system is a region of high biomass and primary productivity as well as strong mesoscale variability. In order to examine the interaction of physical forcing and ecosystem dynamics, four 3-week sampling cruises were conducted in the Oregon upwelling system as part of the Northeast Pacific Global Ocean...
Resource Type:: Masters Thesis
Full Text:: ........................................................................................31 10. Figure 10: Distributions of nitrate (NO3) + nitrite (NO2) (j.tmol/L) during each of the four

Untangling the complexity of nearshore ecosystems : examining issues of scaling and variability in benthic communities

Creator:: Schoch, G. Carl
Abstract:: The objective of this research was to improve our understanding of how changes in the environment affect ecological processes. Change detection is often confounded by the large variation found in ecological data due to the difficulty of finding replicates in nature. Intertidal communities were chosen for studies of biophysical interactions...
Resource Type:: Dissertation
Full Text:: in uM/l (B), with isobaths and the coastal configuration. Relative abundances of amphipods (A), and

Annual cycles of organic matter and phytoplankton attributes in the Columbia and Willamette Rivers, with reference to the Columbia River Estuary

Creator:: Sullivan, Barbara Elaine
Resource Type:: Masters Thesis
Full Text:: ) chlorophyll a (p.g/l), b) pheopigments (..tgfl) and c) %chlorophyll a (%chl

Reconstructing salinity conditions in Nares Strait (Canadian Archipelago) from stable isotope profiles in bivalve shells

Creator:: Zima, Daniela
Abstract:: Nares Strait is one of three main passages of the Canadian Archipelago that channels freshwater from the Arctic Ocean to the North Atlantic. There are very few observations regarding the role of this region on the present day Arctic freshwater budget, and even less regarding the changes in freshwater fluxes...
Resource Type:: Masters Thesis
Full Text:: length (L) measured from the umbo to the tip of the ventral margin (red line

An X-radiographic study of the October 2000 Po River flood deposit, Italy

Creator:: Hunt, Louise
Abstract:: During October 2000 the Po River, Italy's largest river, experienced a historically significant flood, producing a deposit on the adjacent prodelta. In December 2000 an event-response study of the deposit was conducted, and during the ensuing 16 months three additional sampling cruises were conducted to study the subsequent evolution of...
Resource Type:: Masters Thesis
Full Text:: grateful to Rob Holman, Clare Reimers, and Mark Christensen for their time, guidance, and interest in this

Design, assessment, and future implications of the Multiple Enzyme Analyzer (MEA), a tool for in-situ monitoring of marine microbial activity

Creator:: Jaeger, Stephanie A.
Abstract:: The microbial loop plays a crucial role in remineralization of organic matter and fuels recycled production in the aquatic environment. The capability of microbes to utilize particular compounds can be examined through their ectoenzyme (found outside the cell) activities using fluorogenic substrate analogs. These catalysts hydrolyze polymers otherwise too large...
Resource Type:: Masters Thesis
Full Text:: along with Dr. Rob Holman, Statistical Analyses of Geological Databases (OC665), and he continued to

The distribution and partitioning of dissolved organic matter off the Oregon Coast : a first look

Creator:: Hill, Jon K.
Abstract:: The purpose of this thesis is to provide a first look at the spatial and temporal distributions of dissolved organic material (DOM) off the Oregon coast of North America. While this paper is not a comprehensive examination of these distributions, several patterns are identified as promising candidates for continued research....
Resource Type:: Masters Thesis
Full Text:: ................................................................................ 34 3.9 Distribution of chlorophyll a (g/L) in the surface waters off Oregon and southern Washington

Paleoclimate, paleoventilation, and paleomagnetism as recorded in a 17kyr marine sediment record from the SE Alaska margin

Creator:: Davies, Maureen Helen
Abstract:: The deglacial behavior of the sub-Arctic North Pacific is poorly constrained, with many published records suffering from limited age control due to extensive post- depositional biogenic carbonate dissolution. Potential alternative dating methods could include the correlation of stable-isotopic and/or paleomagnetic secular variation records to an independently-dated regional template, however no...
Resource Type:: Dissertation
Full Text:: to convince people I am. Thanks to Amy Simmons, Paul Walczak, Chelsea Stephen, and David Langner

SeaSoar observations during the Coastal Ocean Advances in Shelf Transport (COAST) mesoscale survey II : R/V Wecoma cruise from 6 to 26 August 2001

Creator:: O'Malley, Robert T., Barth, John A., and Erofeev, Anatoli Y.
Abstract:: As part of the Coastal Ocean Processes (CoOP) project Coastal Ocean Advances in Shelf Transport (COAST), this was the second of two cruises in 2001 to study cross-shelf transport processes in a wind-driven coastal ocean. The project includes field experiments off the Oregon coast and coordinated ocean circulation/ecosystem and atmospheric...
Resource Type:: Technical Report
Full Text:: 124.5 Longitude (°W) Cape Lookout Cape Kiwanda Cascade Head Lincoln City L 45.5 - 45 Boiler Bay

MicroSoar : a high speed microstructure profiling system

Creator:: May, Glenn H.
Abstract:: As ocean ecosystems continue to deteriorate in the face of human induced pressures, marine management professionals are increasingly being urged to predict the impacts of various activities on ocean ecosystems. Many ecosystem interactions are still not adequately understood, so managers often turn to scientists to provide data and analysis on...
Resource Type:: Masters Thesis
Full Text:: ........ 148 APPENDIX K MICROSOAR WIRING HARNESS ................. 150 APPENDIX L CONDUCTIVITY SYSTEM

Development of a rare earth element paleoproxy

Creator:: Haley, Brian Alexander, 1973-
Abstract:: This thesis describes the development of a rare earth element (REE) proxy for paleoceanographic studies of climate change. This work was done in three stages with the goal: (1) To develop a cleaning method that overcomes the problems of REE readsorption; (2) To measure pore water REEs for evaluation of...
Resource Type:: Dissertation
Full Text:: Falkner, (Dr.) Rob Holman and Nick Pisias. I am forever indebted to the COAS staff, who rescued me from

SeaSoar observations during the Coastal Ocean Advances in Shelf Transport (COAST) mesoscale survey I : R/V Wecoma cruise from 23 May to 13 June 2001

Creator:: O'Malley, Robert T., Barth, John A., and Erofeev, Anatoli Y.
Abstract:: As part of the Coastal Ocean Processes (CoOP) project Coastal Ocean Advances in Shelf Transport (COAST), this was the first of two cruises in 2001 to study cross-shelf transport processes in a wind-driven coastal ocean. The project includes field experiments off the Oregon coast and coordinated ocean circulation/ecosystem and atmospheric...
Resource Type:: Technical Report
Full Text:: L a tit u d e ( o N ) 123.8124.2124.6125125.4 Waldport Line locations for BB1 01/05/24 02:32

Search Constraints

Search Results

Limit your search