Index Catalog // ScholarsArchive@OSU

Characterizing drivers of microbial community structure and function in diverse marine sediments

Creator:: Graw, Michael F.
Abstract:: Marine sediments are one of the largest habitats for microbial life on earth. These microorganisms play critical roles in biogeochemical cycling both within the subsurface and between the sediment and water columns. However, microbial communities in sediments are highly heterogeneous and the factors defining microbial community structure and metabolic function...
Resource Type:: Dissertation
Full Text:: Michael F. Graw for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science

The Role of Iron: How Natural and Human-Induced Iron Fertilization Could Change Ocean Productivity

Creator:: Adroli, Nurmalia
Abstract:: Iron (Fe) is an important limiting nutrient that can affect the rate of ocean primary production because it is required by phytoplankton as an enzymatic cofactor in photosynthesis, nitrogen fixation, and other essential metabolic functions. Most Fe reaches the surface of the open ocean via atmospheric dust deposition, which is...
Resource Type:: Masters Thesis
Full Text:: advising committee, Prof. Michael Harte and Prof. Ricardo Letelier: thank you very much for your

International river basin management in the face of change : Syr Darya Basin case study

Creator:: Pak, Mariya
Abstract:: The conflict over water resources exploitation and sharing in the Aral Sea Basin is one of the most pressing environmental issues yet to be resolved in Central Asia. The fall of the Soviet Union in 1991 and establishment of the New Independent States (NIS) within the Aral Sea Bain led...
Resource Type:: Dissertation
Full Text:: encouragement and friendship my committee members: Dr. Michael Campana, Dr. Todd Jarvis, Dr. Nancy Rosenberger

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

It Depends: Defining Cooperation and Evaluating Effectiveness in Transboundary Waters

Creator:: McCracken, Melissa J.
Abstract:: With the increasing international focus on transboundary cooperation as a part of the Sustainable Development Goal (SDG) Framework, there is global recognition of transboundary water cooperation as a tool for improved governance and management of transboundary surface and groundwaters. Yet, there is not an agreed upon definition of transboundary water...
Resource Type:: Dissertation
Full Text:: would also like to express my gratitude to my full committee, Prof. Dan Tarlock, Dr. Michael Campana

Water Governance Process Assessment : Evaluating the Link between Decision Making Processes and Outcomes in the Columbia River Basin

Creator:: Ogren, Kimberly
Abstract:: Academics and practitioners agree that in water governance, the quality of a decision making process should influence the quality of the outcome and the degree to which it is accepted by interested parties. However, finding a feasible way to evaluate and then improve the quality of a decision making process...
Resource Type:: Dissertation
Full Text:: Wolf, and committee Dr. Michael Campana, Dr. Gregg Walker, Barb Cosens, JD, and Dr. Christine Olsen

Correlation of ignimbrites using characteristic remanent magnetization and anisotropy of magnetic susceptibility, Central Andes, Bolivia

Creator:: Ort, Michael H., de Silva, Shanaka L., Jimenez C., Nestor, Jicha, Brian R., and Singer, Bradley S.
Abstract:: Large ignimbrite flare-ups provide records of profound crustal modification during batholith formation at depth. The locations of source calderas and volumes and ages of the eruptions must be determined to develop models for the tectonomagmatic processes that occur during these events. Although high-precision isotopic ages of the ignimbrites are critical,...
Resource Type:: Article
Full Text:: remanent magnetization and anisotropy of magnetic susceptibility, Central Andes, Bolivia Michael H. Ort

Resilience of large river basins : applying social-ecological systems theory, conflict management, and collaboration on the Mekong and Columbia Basins

Creator:: MacQuarrie, Patrick R.
Abstract:: River basins provide essential services for both humans and ecosystems. Understanding the connections between ecosystems and society and their function has been at the heart of resilience studies and has become an increasing important endeavor in research and practice. In this dissertation, I define basin resilience as a river basin...
Resource Type:: Dissertation
Full Text:: my PhD committee: Dr. Aaron Wolf, Dr. Gregg Walker, Dr. Michael Campana, and Dr. Brent Steel for

Optics, structure and variability of the offshore Columbia River plume

Creator:: Saldías, Gonzalo
Abstract:: The Columbia River delivers the greatest amount of freshwater to the coastal ocean along the U.S. Pacific coast. This freshwater forms the Columbia River plume, a mesoscale plume with significant implications on coastal ocean physical, biological, chemical, and geological processes. The plume is transported south and offshore during the upwelling...
Resource Type:: Dissertation
Full Text:: . Michael Kosro contributed to chapter 3 through review, and providing NH-10 and HF Radar data. Dr. John

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

ScholarsArchive@OSU

Characterizing drivers of microbial community structure and function in diverse marine sediments

The Role of Iron: How Natural and Human-Induced Iron Fertilization Could Change Ocean Productivity

International river basin management in the face of change : Syr Darya Basin case study

From the Shoreface to the Foredunes : Coastal Morphodynamics Across the Land-Sea Interface

It Depends: Defining Cooperation and Evaluating Effectiveness in Transboundary Waters

Water Governance Process Assessment : Evaluating the Link between Decision Making Processes and Outcomes in the Columbia River Basin

Correlation of ignimbrites using characteristic remanent magnetization and anisotropy of magnetic susceptibility, Central Andes, Bolivia

Resilience of large river basins : applying social-ecological systems theory, conflict management, and collaboration on the Mekong and Columbia Basins

Optics, structure and variability of the offshore Columbia River plume

Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

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