Index Catalog // ScholarsArchive@OSU

Shore protection structures in Oregon : An analysis of demand and the implementation of engineering recommendations

Creator:: Chenault, Carla Diane and Chenault, Carla D.
Abstract:: Stabilization structures are the most commonly used form of shore protection along the Oregon coast. Eighty-five percent of the hard stabilization structures built in Oregon from 1976 – 1999 were riprap revetments. An evaluation was conducted of 143 riprap revetments in the northern three counties of Oregon. Clear trends exist...
Resource Type:: Capstone Project
Full Text:: and the Implementation of Engineering Recommendations by Carla Diane Chenault Project Report

Climate and streamflow trends in the Columbia River basin: evidence for ecological and engineering resilience to climate change

Creator:: Hatcher, Kendra L. and Jones, Julia A.
Abstract:: Large river basins integrate the signal of water from atmospheres to oceans. Climate change is widely expected to alter streamflow and potentially disrupt water management systems. We tested the ecological resilience -- capacity of headwater ecosystems to sustain streamflow under climate change – and the engineering resilience – capacity of...
Resource Type:: Article
Full Text:: : Evidence for Ecological and Engineering Resilience to Climate Change 1 Climate and streamflow trends

Data for Runups of unusual size: rogueness and variability of swash

Creator:: Garcia Medina, Gabriel, Ozkan-Haller, H. Tuba, Ruggiero, Peter, Holman, Robert A., and Li, Chuan
Abstract:: This repository item contains the files needed to reproduce the results reported in the published work entitled "Runups of unusual size: rogueness and variability of swash" in the Journal of Geophysical Research. As described in the publication, the results described within it pertain to simulations of wave runup for various...
Resource Type:: Dataset

From Micro to Macro: Insights into Biogeochemical Mechanisms that Shape Marine Systems

Creator:: Seabrook, Sarah
Abstract:: Biogeochemical mechanisms employed by key organisms, or symbiotic associations of organisms, transform the function and structure of their environment through processes recognized as ecosystem engineering. This dissertation seeks to investigate organism-ecosystem interactions that serve globally significant ecological functions in marine systems and impact how systems respond to environmental change. Using...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Sarah Seabrook for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric

Hydrodynamic and Morphologic Controls on Extreme Coastal Total Water Levels Across Regional and Local Scales

Creator:: Serafin, Katherine A.
Abstract:: Coastal and estuarine flooding and erosion events are usually driven by the cumulative effect of multiple individual processes like waves, streamflow, storm surge, and/or tides. This dissertation focuses on separating the influence of the regional and local-scale geomorphologic and hydrodynamic processes driving variability in the magnitude and impacts of extreme...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science presented on December 8

Ocean Mixing by Kelvin-Helmholtz Instability

Creator:: Smyth, William D. and Moum, James N.
Abstract:: Kelvin-Helmholtz (KH) instability, characterized by the distinctive finite-amplitude billows it generates, is an important mechanism in the development of turbulence in the stratified interior of the ocean. In particular, it is often assumed that the onset of turbulence in internal waves begins in this way. Clear recognition of the importance...
Resource Type:: Article
Full Text:: | Vol. 25, No. 2140 Ocean Mixing by Kelvin-Helmholtz Instability B y W I l l I a M D . S M y t H

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Creator:: Gradoville, Mary Rose
Abstract:: Biological di-nitrogen (N₂) fixation is a key process in open-ocean ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of primary productivity and carbon (C) drawdown. Recent laboratory studies have shown that elevated pCO₂ enhances the rate of N₂ fixation by select laboratory isolates...
Resource Type:: Masters Thesis
Full Text:: A study on the effects of enhanced pCO2 on open ocean

Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

Creator:: Pasmans, Ivo
Abstract:: Currently, forecasts produced by the Oregon-Washington (OR-WA) Coastal Ocean Forecast System are constrained by assimilation of only surface observations. The 4-dimensional variational (4DVAR) data assimilation (DA) algorithm is utilized to combine the model and the data, with the time-independent forecast ("background'') error covariance B. In this study, two possible improvements...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Sciences presented on December 7

Simulating extreme total water levels using a time-dependent, extreme value approach

Creator:: Serafin, Katherine A.
Abstract:: Coastal flood hazard zones and the design of coastal defenses are often devised using either the maximum recorded total water level (TWL) or a 'design' event such as the 100-year return-level flood, usually projected from observed extreme events. Despite technological advances driving more consistent instrumental records of wave heights and...
Resource Type:: Masters Thesis
Full Text:: Science in Ocean, Earth, and Atmospheric Science presented on October, 16, 2013. Title: Simulating

Deep-sea sediment paleomagnetism : a case study from the North Atlantic

Creator:: Strano, Sarah Elianna
Abstract:: Sedimentary records from the North Atlantic, instrumental in the development of modern paleo-geomagnetic concepts, show a highly variable field even during times of constant polarity. Yet, our understanding of how the magnetization is acquired in the sediments is poorly understood. Primary magnetizations preserved in deep-sea sediments are known to be...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Sarah Elianna Strano for the degree of Doctor of Philosophy in Earth, Ocean and

ScholarsArchive@OSU

Shore protection structures in Oregon : An analysis of demand and the implementation of engineering recommendations

Climate and streamflow trends in the Columbia River basin: evidence for ecological and engineering resilience to climate change

Data for Runups of unusual size: rogueness and variability of swash

From Micro to Macro: Insights into Biogeochemical Mechanisms that Shape Marine Systems

Hydrodynamic and Morphologic Controls on Extreme Coastal Total Water Levels Across Regional and Local Scales

Ocean Mixing by Kelvin-Helmholtz Instability

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

Simulating extreme total water levels using a time-dependent, extreme value approach

Deep-sea sediment paleomagnetism : a case study from the North Atlantic

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