Index Catalog // ScholarsArchive@OSU

Examining Wave Attenuation Rates and Subsurface Pore Pressures Across Three Marsh Restoration Sill Structures on a Sandy Bed

Creator:: Converse, Jordan D.
Abstract:: With rising sea levels and more frequent exposure to extreme storms, coastlines worldwide are vulnerable to increased erosion and loss of natural marsh lands. In an effort to lessen these impacts, there is a growing practice of adapting hard or “gray” coastline protection techniques to more nature-based features that promote...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Meagan. E. Wengrove With rising sea levels and more frequent exposure to extreme storms

Estimating Drag and Roughness along a Near-Vertical Ice-Ocean Boundary on a Grounded Iceberg

Creator:: Cohen, Nadia
Abstract:: Ice–ocean interactions have profound consequences for the ocean and climate, influencing the rate of sea level rise. Submarine melt is commonly parameterized using a three-equation formulation for the heat, salt, and momentum conservation equations coupled to a buoyant plume model, together called plume-melt theory. However, recent direct observations of terminus...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Meagan E. Wengrove Ice

Observations and Modeling of Shear Reduction and Sediment Flux within Vegetated Canopies on Managed Coastal Dunes

Creator:: Dickey, John
Abstract:: Wind flow on vegetated coastal foredunes adapts to the local canopy drag, resulting in spatial gradients in bed shear stresses which contribute to the formation of localized bedforms (e.g., nebkha, shadow dunes). Numerous morphological properties of the plants, including canopy height and density, affect the wind flow dynamics and therefore...
Resource Type:: Masters Thesis
Full Text:: approved: Meagan Wengrove Wind flow on vegetated coastal foredunes adapts to the local canopy drag

The contribution of morphologic slope on wave, current, and combined wave-current driven sediment flux and ripple geometry on an idealized sand mound

Creator:: Lee, Seok-Bong
Abstract:: Sediment convergence and divergence zones create subaqueous morphological features that range from ripples O (cm) to coastlines O (km). However, there is a gap in knowledge associated with quantifying the contribution of small-scale ripple mobility to the evolution of large-scale morphology. To address this gap, we investigate how small-scale ripples...
Resource Type:: Dissertation
Full Text:: Flux and Ripple Geometry on an Idealized Sand Mound Abstract approved: Meagan E. Wengrove Sediment

Munition Mobility in Mixed Grain (Sand and Cobble) Environments

Creator:: Paskoski, Jessica
Abstract:: Nearly 24% of Formerly Used Defense Sites (FUDS) containing military munitions are in the nearshore coastal zone with approximately 30% of those sites containing heterogeneous sediment compositions of gravel-sand. Previous exploration in munition mobility was performed on beaches of sandy or muddy bottoms leaving the influence of heterogeneous sediment properties...
Resource Type:: Masters Thesis
Full Text:: : Munition Mobility in Mixed Grain (Sand and Cobble) Environments Abstract approved: Meagan E. Wengrove

Engineering Services of Submerged Aquatic Vegetation (SAV): Investigation of the Land-Building and Energy-Attenuating Properties of SAV Habitats Across Spatial Scales

Creator:: Holzenthal, Elizabeth R.
Abstract:: Submerged aquatic vegetation (SAV) species, such as seagrasses, are highly valued in estuaries because of the many economic, ecological, and cultural services that they provide, including shelter for fisheries, minimizing water turbidity, and improving am-bient water quality. SAV can also alter its physical environment by attenuating wave and current velocities,...
Resource Type:: Dissertation
Full Text:: -Attenuating Properties of SAV Habitats Across Spatial Scales Abstract approved: David F. Hill Meagan E

Applying climate change information to hydraulic and hydrologic transportation infrastructure

Creator:: Al Naabi, Rawan Y.
Abstract:: Scour is the main cause of bridge failures in the United States. Bridge failures raise a hazard to the safety of the traveling public as well as the massive economic consequences due to the high cost of constructing a new or a replacement bridge. The Oregon Department of Transportation (ODOT)...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Christopher C. Higgins Scour is the main cause of bridge failures in the United States

Estimating the in situ Stratification via Remotely-sensed Internal Wave Speeds

Creator:: Fang, Chufan
Abstract:: This work investigates a methodology for estimating the ocean stratification gradient based on high-resolution, in space and time, remote sensing observations of internal wave propagation speeds. The internal wave speed observations were collected using a shore-based, X-band marine radar and the ocean vertical density profiles were collected simultaneously from an...
Resource Type:: Masters Thesis
Full Text:: situ Stratification via Remotely-sensed Internal Wave Speeds Abstract approved: Merrick C. Haller

Evaluation of Stereoscopic Camera Systems for Non-Intrusive Spatial Free Surface Measurement in Coastal Research Laboratories

Creator:: O'Day, Christopher S.
Abstract:: Physical modelling is instrumental to the progression of coastal engineering research and our understanding of the offshore and nearshore environments. Scaled models are designed and built to be tested in coastal research laboratories, where a wave basin or flume generates the desired wave conditions for experimentation. The surrounding hydrodynamics of...
Resource Type:: Masters Thesis
Full Text:: offshore (b) instrumentation frame looking onshore (c) basin beach looking offshore. Red arrows indicate

Radar and Optical Remote Sensing of Submesoscale Frontal Features

Creator:: Simpson, Alexandra J.
Abstract:: The coastal region is home to many types of surface fronts that exist on a submesoscale (1-10 $km$). While in situ observations capture point or transect observations of frontal behavior subsurface, their complex spatial patterns can be well-captured using remote sensing techniques, which provide synoptic views of the ocean surface...
Resource Type:: Dissertation
Full Text:: : Radar and Optical Remote Sensing of Submesoscale Frontal Features Abstract approved: Merrick C. Haller

ScholarsArchive@OSU

Examining Wave Attenuation Rates and Subsurface Pore Pressures Across Three Marsh Restoration Sill Structures on a Sandy Bed

Estimating Drag and Roughness along a Near-Vertical Ice-Ocean Boundary on a Grounded Iceberg

Observations and Modeling of Shear Reduction and Sediment Flux within Vegetated Canopies on Managed Coastal Dunes

The contribution of morphologic slope on wave, current, and combined wave-current driven sediment flux and ripple geometry on an idealized sand mound

Munition Mobility in Mixed Grain (Sand and Cobble) Environments

Engineering Services of Submerged Aquatic Vegetation (SAV): Investigation of the Land-Building and Energy-Attenuating Properties of SAV Habitats Across Spatial Scales

Applying climate change information to hydraulic and hydrologic transportation infrastructure

Estimating the in situ Stratification via Remotely-sensed Internal Wave Speeds

Evaluation of Stereoscopic Camera Systems for Non-Intrusive Spatial Free Surface Measurement in Coastal Research Laboratories

Radar and Optical Remote Sensing of Submesoscale Frontal Features

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