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Filtering by: Creator Özkan-Haller, H. Tuba Remove constraint Creator: Özkan-Haller, H. Tuba Academic Affiliation College of Earth, Ocean, and Atmospheric Sciences Remove constraint Academic Affiliation: College of Earth, Ocean, and Atmospheric Sciences Rights Statement In Copyright Remove constraint Rights Statement: In Copyright

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Data assimilation for prediction of shallow water flows with uncertain bathymetry

Creator:

Wilson, Gregory W.

Abstract:

A new method is introduced for incorporating bathymetric uncertainty into predictions of nearshore and river flows (i.e., unstratified flows primarily forced by pressure and radiation stress gradients). The method involves the use of the ensemble Kalman filter (EnKF) as a parameter estimation scheme, where the parameter to be estimated is...

Resource Type:

Dissertation

Full Text:

Shallow Water Flows with Uncertain Bathymetry Abstract approved: ¨ H. Tuba Ozkan-Haller A new
Using Magnetotellurics Towards Imaging the Primary Magma Reservoir in the Cotopaxi Volcano, Ecuador

Creator:

Angel, Kaitlan W. E.

Abstract:

In this study, 3D finite difference and 2D finite element forward modeling were used to create an electromagnetic sensitivity analysis for the Cotopaxi volcano in Ecuador. Magnetotellurics (MT) is a natural-source electromagnetic geophysical technique that images electrical conductivity. Measuring strong contrasts in electrical conductivity in volcanic materials allows for the...

Resource Type:

Masters Thesis

Full Text:

Tuba Özkan-Haller In this study, 3D finite difference and 2D finite element forward modeling
Power Calculations for a Passively Tuned Point Absorber Wave Energy Converter on the Oregon Coast

Creator:

Oskamp, Jeffrey A. and Özkan-Haller, H. Tuba

Abstract:

A wave-structure interaction model is implemented, and power output estimates are made for a simplified wave energy converter operating in measured spectral wave conditions. In order to estimate power output from a wave energy converter, device response to hydrodynamic forces is computed using a boundary element method potential flow model....

Resource Type:

Article

Full Text:

Geophysical Research, 104(C4):7649–7666, 1999. [5] T. K. A. Brekken, H. T. Özkan-Haller, and A. Simmons. A
Modeling Eddy Correlation Biases Created by Velocity Sensitivities of Clark-type Oxygen Microelectrodes Under Waves

Creator:

Albright, Andrea and Albright, Andrea T. P.

Abstract:

Field deployments, flume experiments, and a 2D wave model have been used to identify the characteristics of Clark-type oxygen microelectrodes and measurement parameters that could possibly bias eddy correlation (EC) flux measurements made under waves. Eddy correlation is a technique adapted from atmospheric sciences that couples concurrent and co-located velocity...

Resource Type:

Capstone Project

Full Text:

. Thanks to Tuba Özkan-Haller for teaching me about wave theory and providing the seeds to many of the
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
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:

is inspiring. To my other committee members, Rob Holman and Tuba Ӧzkan-Haller, thank you for your
Technical note: Time lag correction of aquatic eddy covariance data measured in the presence of waves

Creator:

Berg, P., Reimers, Clare E., Rosman, J. H., Huettel, M., Delgard, M. L., Reidenbach, M. A., and Özkan-Haller, H. Tuba

Abstract:

Extracting benthic oxygen fluxes from eddy covariance time series measured in the presence of surface gravity waves requires careful consideration of the temporal alignment of the vertical velocity and the oxygen concentration. Using a model based on linear wave theory and measured eddy covariance data, we show that a substantial...

Resource Type:

Article

Full Text:

., Delgard, M. L., Reidenbach, M. A., & Özkan-Haller, H. T. (2015). Technical note: Time lag correction of
Technical note: Time lag correction of aquatic eddy covariance data measured in the presence of waves

Creator:

Berg, P., Reimers, Clare E., Rosman, J. H., Huettel, M., Delgard, M. L., Reidenbach, M. A., and Özkan-Haller, H. Tuba

Abstract:

Extracting benthic oxygen fluxes from eddy covariance time series measured in the presence of surface gravity waves requires careful consideration of the temporal alignment of the vertical velocity and the oxygen concentration. Using a model based on linear wave theory and measured eddy covariance data, we show that a substantial...

Resource Type:

Article

Full Text:

., Delgard, M. L., Reidenbach, M. A., & Özkan-Haller, H. T. (2015). Technical note: Time lag correction of
From the Shoreface to the Foredunes : Coastal Morphodynamics Across the Land-Sea Interface

Creator:

Cohn, Nicholas T.

Abstract:

Coastal flooding and erosion are major concerns for low lying coastal communities -- particularly in light of accelerated sea level rise and climate change. To improve quantitative understanding of the physical drivers of both flooding and coastal landscape change, this dissertation explores coastal morphodynamics bridging the land-sea interface on modally...

Resource Type:

Dissertation

Date Created:

Full Text:

other members of my committee, Tuba Özkan-Haller, Rob Holman, and Michael Olsen as well. I have been
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:

things coastal. To my committee members Dr. Hilary Stockdon, Dr. Phil Mote, Dr. Tuba Özkan-Haller, and

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Academic Affiliation

College of Earth, Ocean, and Atmospheric Sciences[remove]35
Civil and Construction Engineering2

Advisor

Ruggiero, Peter4
Conway, Flaxen3
Barth, John A.2
Goldfinger, Chris2
Reimers, Clare E.2
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2012 to 2024

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Unknown 6

Committee Member

Ozkan-Haller, H. Tuba3
Holman, Robert2
Holman, Robert A.2
Lancaster, Stephen2
Meigs, Andrew2
more Committee Members »

Conference Name

International Coastal Symposium1
Ocean Sciences Meeting 20241

Creator

Ozkan Haller, H. Tuba4
Berg, P.2
Delgard, M. L.2
Huettel, M.2
Reidenbach, M. A.2
more Creators »

Contributor

Barth, Jack A.1
Briles, Christy1
Colombaroli, Daniele1
Erofeev, Anatoli Y.1
Goldfinger, Chris1
more Contributors »

Date

Date range begin – Date range end

Current results range from 2012 to 2023

View distribution

Decade

2020-20296
2010-201929

Degree Field

Ocean, Earth, and Atmospheric Science8
Marine Resource Management7
Geology6
Earth, Ocean, and Atmospheric Sciences3
Geography3
more Degree Fields »

Degree Level

Master's17
Doctoral12

Degree Name

Master of Science (M.S.)17
Doctor of Philosophy (Ph.D.)12

Language

English [eng]35

License

All rights reserved27
Attribution 3.0 United States2
Attribution 4.0 (CC BY 4.0)1
CC0 1.0 Universal1

Location

Colón, Colón, Panama, (Populated Place)1

Non-Academic Affiliation

Oregon State University. Graduate School14
Oregon State University. Sea Grant College Program1

Peer Reviewed

No28
Yes5

Resource Type

Masters Thesis15
Dissertation12
Article5
Capstone Project2
Dataset1

Rights Statement

In Copyright[remove]35

Subject

Beach erosion -- Oregon -- Pacific Coast -- Mathematical models1
Benthic animals -- Habitat suitability index models -- Pacific Coast (U.S.)1
Bivalves1
Bivalves -- Pacific Coast (U.S.)1
Bivalves -- Pacific Coast (U.S.) -- Geographical distribution1
more Subjects »

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