Index Catalog // ScholarsArchive@OSU

Investigating the Role of Dune Grasses, Carbon Storage, and Marine Nutrient Subsidies to the Functions and Services of U.S. Central Atlantic Coastal Dune Ecosystems

Creator:: Jay, Katya R.
Abstract:: Sandy beaches and dunes cover approximately one-third of the world’s ice-free coastlines and provide ecosystem services including coastal protection, recreation, wildlife habitat, and carbon sequestration. These dynamic interface habitats are variably shaped by wind, waves, sedimentary processes, and vegetation feedbacks. Positive biophysical feedbacks lead to the formation of vegetated coastal...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Katya R. Jay for the degree of Doctor of Philosophy in

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:: Field Experiment results (red circles). Over the range of densities used in Hesp et al.’s data set our

Coastal Dunes as Meta-Ecosystems: Connecting Marine Subsidies to Dune Ecosystem Functions on the U.S. Pacific Northwest Coast

Creator:: Constant, Vanessa
Abstract:: Ecological communities are connected in space and time through the transfer of energy, materials, and organisms, together known as ecological subsidies. These ecological subsidies can have substantial effects on community structure, function, and services, especially when the connections are between communities with contrasting productivity. At the ocean-land interface, low productivity...
Resource Type:: Dissertation
Full Text:: beachgrass, Ammophila breviligulata. Since their introduction in the early 1900’s, the Ammophila congeners

Carbon storage in U.S. Pacific Northwest coastal dunes : the role of invasive beachgrasses and sand supply

Creator:: Stepanek, John
Abstract:: As global atmospheric carbon emissions continue to rise, scientists and land managers are increasingly looking to natural ecosystems to sequester and store carbon to buffer the impacts of climate change. Despite their small geographic size, many coastal ecosystems such as salt marshes, seagrass meadows, and mangroves sequester large amounts of...
Resource Type:: Masters Thesis
Full Text:: for funding this research. Thank you to Will Ritchie, Ben Cox, Cindy Burns, Courtney Gabriel, Jay

Tsunami propagation in large rivers : idealized cases and the Columbia River Estuary

Creator:: Kalmbacher, Kirk D.
Abstract:: The hazards associated with tsunamis are well known and have been studied for decades. The majority of research is, however, focused on open coastlines which bear the brunt of a tsunamis force. Other regions that can be strongly impacted by a tsunami are large estuaries. Here, the tsunami encounters a...
Resource Type:: Masters Thesis
Full Text:: ). ........................................................................ 39 Figure 23: Maximum WSEs for constant discharge: Q=100 m 3 /s ............................... 41

Wave modeling at the mouth of the Columbia River

Creator:: Kassem, Sarah
Abstract:: As the second largest river in the U.S., the entrance to the Columbia River is home to some of the most extreme wave conditions on the Pacific Coast. Winter storms commonly generate waves 6-8 m in height, which in combination with strong tidal currents, can produce dangerous navigation conditions. To...
Resource Type:: Masters Thesis
Full Text:: meter range and tidal velocities at the MCR range from over 2 m/s on ebb to 1 m/s on �ood tide

Tidal range changes in the Delaware Bay : past conditions and future scenarios

Creator:: Hall, George F.
Abstract:: Throughout the Holocene, appreciable changes in bathymetry are hypothesized to have resulted in large changes to tidal datums in coastal and estuarine areas. An understanding of tidal change is an important contribution to the knowledge of relative historical sea-level change and future coastal planning. To test this hypothesis, the Advanced...
Resource Type:: Masters Thesis
Full Text:: , potentially affecting the salinity of the environment (Jay 2009). Green (2010) proposed that future sea

Coupled wave and surge modeling of Tillamook Bay, Oregon : extreme events and climate change impacts

Creator:: Cheng, Tiffany Kay
Abstract:: Estuaries represent the confluence of land and ocean environments and encompass a number of complex interactions amongst tides, winds, offshore waves and the riverine contributions, all of which contribute to total water levels (TWLs). The study of TWLs and the relative weight of its components can assist local communities in...
Resource Type:: Masters Thesis
Full Text:: . Figure 2. Peak gusts in m s-1 for the 02-03 Dec 2007 windstorm. Given high spatial variability of peak

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

Creator:: Zarnetske, Phoebe Lehmann
Abstract:: Biological invasions provide a unique opportunity to study the mechanisms that regulate community composition and ecosystem function. Invasive species that are also ecosystem engineers can substantially alter physical features in an environment, and this can lead to cascading effects on the biological community. Aquatic-terrestrial interface ecosystems are excellent systems to...
Resource Type:: Dissertation
Full Text:: degree without Jay – his support, commitment, friendship, and honesty has helped me become a better

Experimental and numerical modeling of wave height attenuation by emergent coastal vegetation

Creator:: Blackmar, Philip James
Abstract:: Coastal vegetation dampens waves which can provide benefits to the local area, but existing literature shows large variations in the degree of wave height attenuation depending on plant properties and wave conditions. Better knowledge of how to predict the wave height decay accurately in different types of vegetation may help...
Resource Type:: Masters Thesis
Full Text:: . ..................................................................................................................... 23 4. Figure 5. Measured and predicted attenuation due to vegetation for Tp=0.6 s, Density 1 and

ScholarsArchive@OSU

Investigating the Role of Dune Grasses, Carbon Storage, and Marine Nutrient Subsidies to the Functions and Services of U.S. Central Atlantic Coastal Dune Ecosystems

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

Coastal Dunes as Meta-Ecosystems: Connecting Marine Subsidies to Dune Ecosystem Functions on the U.S. Pacific Northwest Coast

Carbon storage in U.S. Pacific Northwest coastal dunes : the role of invasive beachgrasses and sand supply

Tsunami propagation in large rivers : idealized cases and the Columbia River Estuary

Wave modeling at the mouth of the Columbia River

Tidal range changes in the Delaware Bay : past conditions and future scenarios

Coupled wave and surge modeling of Tillamook Bay, Oregon : extreme events and climate change impacts

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

Experimental and numerical modeling of wave height attenuation by emergent coastal vegetation

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search