Index Catalog // ScholarsArchive@OSU

Single and multiple rates of nonequilibrium diffusive mass transfer at the laboratory, field, and regional scales in the Culebra Member of the Rustler Formation, New Mexico

Creator:: Fleming, Sean W.
Resource Type:: Masters Thesis
Full Text:: Mexico AN ABSTRACT OF THE THESIS OF Sean W. Fleming for the degree of Master of Science in Geology

Measurement of Gas Exchange, Stream Metabolism, and Carbon Fluxes of Headwater Streams

Creator:: Pennington, Robert S.
Abstract:: Freshwater systems are an important component of the global carbon cycle as they outgas disproportionately large quantities of carbon compared to the terrestrial landscape. Of particular importance are headwater streams, which represent roughly 90% of the channel network by length and have been conservatively estimated to outgas roughly 36% of...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Roy D. Haggerty

Changes in hyporheic exchange flow following experimental large wood removal in a second order, low gradient stream, Chichagof Island, AK

Creator:: La Nier, Justin
Abstract:: Hyporheic Exchange Flow (HEF) is driven by head gradients defined by the hydro-topography of the stream surface, which is controlled by the particular geomorphology of the stream. We quantified the impact of large wood, which typically exerts a strong control on stream morphology, on HEF in a second order, low...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________________ Roy D. Haggerty Hyporheic Exchange Flow (HEF) is driven by head gradients defined by the

Hydrogeologic field investigation and groundwater flow model of the southern Willamette Valley, Oregon

Creator:: Craner, Jeremy D.
Abstract:: Elevated groundwater nitrate (NO3 -) concentrations in the Southern Willamette Valley (SWV) caused the Oregon Department of Environmental Quality (ODEQ) to declare a Groundwater Management Area (GWMA) in Spring, 2004. To better understand direction of groundwater flow, groundwater age, and nitrate transport pathways of the SWV we developed a steady-state...
Resource Type:: Masters Thesis
Full Text:: Southern Willamette Valley, Oregon. Abstract approved: Roy Haggerty Elevated

Hydrological and biogeochemical dynamics of nitrate production and removal at the stream – ground water interface

Creator:: Zarnetske, Jay P.
Abstract:: 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 biosphere, which is causing increasingly frequent and severe impacts on ecosystems and human welfare. Streams are important features in...
Resource Type:: Dissertation
Full Text:: – Ground Water Interface. Abstract approved: Roy D. Haggerty The feedbacks between

Tracer experiments in a non-uniform porous medium : implications of diffusive mass transfer on the late-time breakthrough behavior

Creator:: Freiherr von Schwerin, Claudius
Abstract:: Mass transfer processes were evaluated in an artificial, non-uniform porous medium with a power law distribution of diffusion rate coefficients obtained from physical characterization of solute and porous medium. Breakthrough curves of several pulse experiments conducted at different velocities were compared (1) to analytical expressions for concentrations at mass transfer...
Resource Type:: Masters Thesis
Full Text:: : _______________________ _ Roy Haggerty Mass transfer processes were evaluated in an artificial, non-uniform porous

A preliminary assessment of hydrogeologic suitability for Aquifer Storage and Recovery (ASR) in Oregon

Creator:: Woody, Jen
Abstract:: An ASR metric and site rating index applied to over 120 municipal and agricultural locations across Oregon, combined with comparison to case study data from existing ASR sites, indicate that more than 50% of selected sites are hydrogeologically suitable for ASR. The ASR metric is a ratio of aquifer storage...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Dr. Roy Haggerty An ASR metric and site rating index applied to over 120

Groundwater Flow Modeling at Santa Susana Field Laboratory

Creator:: Gardner, Gerrit T.
Abstract:: Understanding groundwater flow in faulted and fractured rock is an important frontier in the field of environmental remediation and in the management of water resources. One example of a site where this is particularly evident is the Santa Susana Field Laboratory (SSFL) in Ventura County, CA where environmental remediation activities...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Roy Haggerty Understanding groundwater flow in faulted and fractured rock is an

Forensic Hydrogeography : Assessing Groundwater Arsenic Concentrations and Testing Methods within the Harney Basin, Oregon

Creator:: Smitherman, Lauren L.
Abstract:: Harney County contains defining characteristics of regions containing arsenic within the groundwater such as its location in the western United States, unique closed basin geography, complex geology, and seasonal groundwater level fluctuations. Confirmation of arsenic concentrations above the Maximum Contaminant Level Drinking Water Standard of 10 μg/L has been observed...
Resource Type:: Masters Thesis
Full Text:: members Dr. Molly Kile, Dr. Roy Haggerty, and my graduate committee representative Dr. Tracy Arras

Determining the relationship between measured residence time distributions in lateral surface transient storage zones in streams and corresponding physical characteristics

Creator:: Coleman, Anthony M.
Abstract:: 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 importance to determine the residence time distribution (RTD). A RTD of a particular STS zone encompasses the time it takes...
Resource Type:: Masters Thesis
Full Text:: Physical Characteristics Abstract approved: Roy D. Haggerty Surface transient storage (STS

ScholarsArchive@OSU

Single and multiple rates of nonequilibrium diffusive mass transfer at the laboratory, field, and regional scales in the Culebra Member of the Rustler Formation, New Mexico

Measurement of Gas Exchange, Stream Metabolism, and Carbon Fluxes of Headwater Streams

Changes in hyporheic exchange flow following experimental large wood removal in a second order, low gradient stream, Chichagof Island, AK

Hydrogeologic field investigation and groundwater flow model of the southern Willamette Valley, Oregon

Hydrological and biogeochemical dynamics of nitrate production and removal at the stream – ground water interface

Tracer experiments in a non-uniform porous medium : implications of diffusive mass transfer on the late-time breakthrough behavior

A preliminary assessment of hydrogeologic suitability for Aquifer Storage and Recovery (ASR) in Oregon

Groundwater Flow Modeling at Santa Susana Field Laboratory

Forensic Hydrogeography : Assessing Groundwater Arsenic Concentrations and Testing Methods within the Harney Basin, Oregon

Determining the relationship between measured residence time distributions in lateral surface transient storage zones in streams and corresponding physical characteristics

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