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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 19-38 of 66

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 ...
Identifying "at-risk" regions of snow accumulation within California's Sierra Nevada Mountains, and assessing implications on reservoir operations

Kalyan, Imtiaz-Ali M. (2013-05-21)

California's water resources vary throughout the state owing to the regions varying topography, diverse climate, and the distribution of precipitation. Most of the state's precipitation falls over the northern coastal ra ...
Improving soil water determination in spatially variable field using fiber optic technology and Bayesian decision theory

Sayde, Chadi (2012-03-22)

Achieving and maintaining sustainability in irrigated agriculture production in the era of rapidly increasing stress on our natural resources require, among other essential actions, optimum control and management of the ...
Infiltration and temperature characterization of a wastewater hyporheic discharge system

Stewart, Ryan D. (2010-03-30)

The Clean Water Act imposes Total Maximum Daily Load (TMDL) limits on pollutant concentrations within wastewater effluent; in Oregon, thermal discharge is one of the pollutants subject to regulation. The City of Woodbur ...
Influence of hyporheic flow and geomorphology on temperature of a large, gravel-bed river, Clackamas River, Oregon, USA

Burkholder, Barbara K. (2008-01-22)

The hyporheic zone influences the thermal regime of rivers, buffering temperature by storing and releasing heat over a range of timescales. We examined the relationship between hyporheic exchange and temperature along a ...
Influence of vegetation on streambank hydraulics

Czarnomski, Nicole M. (2010-07-19)

Proper use of vegetation in streambank bioengineering practices requires a comprehensive understanding of the influence of vegetation density on streambank hydraulics. A series of studies were conducted to investigate th ...
Institutional capacity building through land and water stewardship integration- an analysis of source water protection in Corvallis, Oregon

Odom, Olivia (2008-07-11)

Globally, access to safe, reliable drinking water sources is a major challenge of this generation. Protected sources of drinking water provide communities with a sustainable, vital resource, yet many public water supplie ...
Integrating solute transport, metabolism and processing in stream ecosystems

González Pinzón, Ricardo A. (2013-05-31)

After three decades of active research coupling hydrology and stream ecology, the connection among solute transport, metabolism and processing is still unresolved. These knowledge gaps obscure the functioning of stream e ...
Investigating capillary pressure and interfacial area for multiphase flow in porous media using pore-scale imaging and lattice-Boltzmann modeling

Porter, Mark L. (2008-07-21)

Recent advances in imaging technology and numerical modeling have greatly enhanced pore-scale investigations of multiphase flow and transport in porous media. It is now feasible to obtain high resolution 3-dimensional po ...