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Browsing Water Resources Graduate Program Theses and Dissertations by Title

Browsing Water Resources Graduate Program Theses and Dissertations by Title

Now showing items 10-29 of 63

Characterizing community impacts of small dam removal : a case study of the Brownsville Dam

Elston, Denise E. (2009-06-09)

Emerging river policy has launched small dam removal as a viable option to meet the ecological and social demands for river restoration. As small dam removals gain precedence as a policy tool in river restoration project ...
Chemical and isotopic patterns of nitrate variability in the southern Willamette Valley, Oregon

Vick, Christopher Flanders (2004-11-12)

A relatively stable, persistent and historical problem with elevated NO₃⁻ concentrations in rural drinking wells in the southern Willamette Valley, Oregon is evident. What is the origin of NO₃⁻ in rural drinking water we ...
Climate change impacts on mountain snowpack presented in a knowledge to action framework

Sproles, Eric Allan (2012-02-16)

Throughout many of the world’s mountain ranges snowpack accumulates during the winter and into the spring, providing a natural reservoir for water. As this reservoir melts, it fills streams and recharges groundwater for ...
A collaborative potential assessment of project atmospheric brown clouds

McNally, Amy (2008-06-27)

Collaboration between scientists and decision makers is a critical element in mobilizing science into action. Likewise, the United Nations defines collaboration between scientists and policymakers as a requisite compon ...
Dam removals and downstream bar-pool morphology

Zunka, John Page Purnell (2011-06-20)

Bar-pool morphology in rivers can provide vital habitat to aquatic species, notably salmonids, which require gravel riffles to bury eggs and pools for hydraulic and cold-water refuge. In some cases, the erosion and subse ...
Demonstration of fiber optic distributed temperature sensing to differentiate cold water refuge between ground water inflows and hyporheic exchange

Collier, Michael W. (2008-08-22)

Recent developments in Distributed Temperature Sensing (DTS) have allowed new insight into the surface-to-ground water interaction. The continuous temperature measurement by the DTS allows for cool water inflows to be ...
Determining the relationship between measured residence time distributions in lateral surface transient storage zones in streams and corresponding physical characteristics

Coleman, Anthony M. (2012-09-17)

Surface transient storage (STS) in stream ecosystems serve an important function in retaining nutrients and refugia for aquatic communities. Unfortunately, they can retain contaminants as well. Therefore, it is of impo ...
The development of a hydrological model of the Walla Walla Basin using Integrated Water Flow Model

Scherberg, Jacob N. (2012-03-19)

The Walla Walla basin lies in an arid region of Eastern Washington and Oregon. A large portion of the area is devoted to agricultural production, relying on irrigation water diverted from the Walla Walla River and unde ...
An ecosystem service approach to inform reactive nitrogen management in the lower Yakima River Basin, Washington

Crowell, Morgan (2012-11-03)

Spatially explicit ecosystem service valuation (ESV) allows for the identification of the location and magnitude of services provided by natural ecosystems to human activities along with a measure of their significance b ...
The effects of land use on mineral flat wetland hydrologic processes in lowland agricultural catchments

Marshall, Sarah M. (Sarah Marie) (2011-09-16)

Hydrologic processes within mineral flat wetlands, along with their connections to groundwater and downstream surface water in lowland agricultural catchments are poorly understood, particularly under different land us ...
Establishing irrigation criteria for cultivation of Veratrum californicum

Doniger, Alison R. (2012-11-16)

Veratrum californicum (common name: corn lily) is a wild plant species that grows in the Intermountain West, its range extending from British Columbia to Mexico. Corn lily is of interest because it has the potential to p ...
Evaluating downstream channel changes in response to a small dam removal on the Calapooia River, Oregon with respect to measurement errors and prior aerial photo observed changes

Walter, Cara (2009-01-29)

The objective of this study was to evaluate the use of aerial photos as a substitute for multiple-year pre-removal field data to assess the downstream channel changes associated with a small dam removal. The Brownsville ...
Evaluation of instream flow restoration targets and the carrying capacity of Oncorhynchus mykiss according to temperature, Whychus Creek, Deschutes Basin, Oregon

Jones, Lesley M. (2011-04-07)

The Pelton Round Butte Hydroelectric Project (Oregon) was built between 1957 and 1964. As a result the anadromous steelhead trout was extirpated from the upper Deschutes Basin by 1968. The Deschutes Basin is a model for ...
Evaluation of stream temperature spatial variation using distributed temperature sensing

O'Donnell, Tara (2012-03-09)

Water temperature in rivers and streams is an important factor for aquatic ecosystem health. Measurement of stream temperature has traditionally been accomplished by point temperature measurements, continuous point temp ...
An exploratory study of the social factors of small dam removal : Chiloquin Dam at Sprague River Mile 0.87, Oregon

Hatch, Jason M. (2008-07-02)

Several reports related to dams and dam removal have been released this decade by non-governmental organizations including Dam Removal: Science and Decision Making by The Heinz Center which focused on small dams, since ...
Glacier change in a basin of the Peruvian Andes and implications for water resources

Burns, Patrick J. (Patrick Joseph) (2012-11-26)

Declines in glacier area and volume are widespread. These changes will have important hydrologic consequences since glaciers store tremendous amounts of fresh water and buffer seasonally low flows in many densely populat ...
Headwater stream characterization : an energy and physical approach to stream temperature using distributed temperature sensing

Roth, Travis R. (2011-02-01)

Headwater streams are an integral part of the ecological health of the greater stream network as they provide valuable biological habitat, provide upwards to 95% of total in channel flow, while providing downstream reach ...
Heat fluxes in the hyporheic zone of a gravel bar on the Willamette River, Oregon

Squeochs, Graysen M. (2011-06-10)

Increased water temperatures and thermal loading due to anthropogenic inputs has been shown to negatively impact the lifecycles of aquatic organisms in riverine systems (Poole and Berman 2001; Hannah, Malcolm et al. 20 ...
Hydraulic predictors and seasonal distribution of Manayunkia speciosa density in the Klamath River, CA, with implications for ceratomyxosis, a disease of salmon and trout

Jordan, Michelle S. (2012-11-09)

The freshwater polychaete Manayunkia speciosa was identified as an obligate host of the salmonid parasite Ceratomyxa shasta in 1997, prompting increased research on the small benthic invertebrate. Ceratomyxa shasta infec ...
Hydrological and biogeochemical dynamics of nitrate production and removal at the stream – ground water interface

Zarnetske, Jay P. (2011-09-07)

The feedbacks between hydrology and biogeochemical cycling of nitrogen (N) are of critical importance to global bioavailable N budgets. Human activities are dramatically increasing the amount of bioavailable N in the bio ...