Index Catalog // ScholarsArchive@OSU

Forest Successional and Disturbance Dynamics in the Southern Blue Mountains of Eastern Oregon

Creator:: Johnston, James D.
Abstract:: The application of modern land management practices beginning at the turn of the 20th century is widely believed to have dramatically transformed forest landscapes of the inland Pacific Northwest. Restoring historical conditions to make forests resilient to future climate and disturbance regimes is a major goal of federal forest managers....
Resource Type:: Dissertation
Full Text:: James D. Johnston for the degree of Doctor of Philosophy in Forest Science presented on May 10, 2016

Evaluating the effectiveness of illuminated and shadowed contour lines

Creator:: Eynard, James D.
Abstract:: Illuminated contour lines, where line width and color are varied based on an angle of illumination, date back to the mid-nineteenth century, but their effectiveness compared to conventional contour lines has not been fully examined. Currently, illuminated contour lines are not widely used in computer-based cartography because they are not...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James D. Eynard for

Methods for short-term prediction of wind speeds in the Pacific Northwest Columbia Gorge wind farm region

Creator:: Davidson, James D.
Abstract:: Variable electrical generation (VG) sources such as wind farms are an increasing percentage of total electrical generation in the Bonneville Power Administration (BPA) balancing area and are starting to impact the ability of the regional balancing authority to control the electric grid. Wind farms are not dispatchable and challenge historical...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James D. Davidson for the degree of Master of Science in Electrical

Ocean Mixing by Kelvin-Helmholtz Instability

Creator:: Smyth, William D. and Moum, James N.
Abstract:: Kelvin-Helmholtz (KH) instability, characterized by the distinctive finite-amplitude billows it generates, is an important mechanism in the development of turbulence in the stratified interior of the ocean. In particular, it is often assumed that the onset of turbulence in internal waves begins in this way. Clear recognition of the importance...
Resource Type:: Article
Full Text:: | Vol. 25, No. 2140 Ocean Mixing by Kelvin-Helmholtz Instability B y W I l l I a M D . S M y t H

Characterization of white mold disease avoidance in common bean

Creator:: Miklas, Phillip N., Porter, Lyndon D., Kelly, James D., and Myers, James R.
Abstract:: White mold, caused by Sclerotinia sclerotiorum, is a devastating fungal disease of common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and disease avoidance conferred by plant architecture-related traits contribute to white mold field resistance. Our objective was to further examine white mold disease avoidance in common bean. A comparative map...
Resource Type:: Article
Full Text:: bean Phillip N. Miklas & Lyndon D. Porter & James D. Kelly & James R. Myers Accepted: 12 December

The role of turbulence stress divergence in decelerating a river plume

Creator:: Kilcher, Levi F., Nash, Jonathan D., and Moum, James N.
Abstract:: Turbulence controls the composition of river plumes through mixing and alters the plume's trajectory by diffusing its momentum. While believed to play a crucial role in decelerating river-source waters, the turbulence stress in a near-field river plume has not previously been observationally quantified. In this study, finely resolved density, velocity,...
Resource Type:: Article
Full Text:: Jonathan D. Nash,1 and James N. Moum1 Received 24 June 2011; revised 27 March 2012; accepted 2 April 2012

Investigation of Amber Snail Management Treatments in Nursery Production Facilities

Creator:: Rosetta, Robin, Coupland, James, Wells, D., and Mack, C.
Resource Type:: Conference Proceeding
Full Text:: . Coupland2, D. Wells1, and C. Mack3 1Oregon Sate University/NWREC 15210 NE Miley Road, Aurora, OR 97002

Evidence that summer jellyfish blooms impact Pacific Northwest salmon production

Creator:: Ruzicka, James J., Daly, Elizabeth A., and Brodeur, Richard D.
Abstract:: Interannual variability in salmon (Oncorhynchus spp.) production in the northeast Pacific is understood to be driven by oceanographic variability and bottom-up processes affecting prey availability to juvenile salmon. Scyphozoan jellyfish have an important role in shaping the pathways of energy flow through pelagic food webs. While jellyfish obtain high production...
Resource Type:: Article

Evaluation of Three Aging Techniques and Back-calculated Growth for Introduced Blue Catfish from Lake Oconee, Georgia

Creator:: Homer, Michael D. Jr, Peterson, James T., and Jennings, Cecil A.
Abstract:: Back-calculation of length-at-age from otoliths and spines is a common technique employed in fisheries biology, but few studies have compared the precision of data collected with this method for catfish populations. We compared precision of back-calculated lengths-at-age for an introduced Ictalurus furcatus (Blue Catfish) population among 3 commonly used cross-sectioning...
Resource Type:: Article
Full Text:: Techniques and Back-calculated Growth for Introduced Blue Catfish from Lake Oconee, Georgia Michael D

Energetics of Bottom Ekman Layers during Buoyancy Arrest

Creator:: Umlauf, Lars, Smyth, William D., and Moum, James N.
Abstract:: Turbulent bottom Ekman layers are among the most important energy conversion sites in the ocean. Their energetics are notoriously complex, in particular near sloping topography, where the feedback between cross-slope Ekman transports, buoyancy forcing, and mixing affects the energy budget in ways that are not well understood. Here, the authors...
Resource Type:: Article
Full Text:: Energetics of Bottom Ekman Layers during Buoyancy Arrest Umlauf, L., Smyth, W. D., & Moum, J. N. (2015

ScholarsArchive@OSU

Forest Successional and Disturbance Dynamics in the Southern Blue Mountains of Eastern Oregon

Evaluating the effectiveness of illuminated and shadowed contour lines

Methods for short-term prediction of wind speeds in the Pacific Northwest Columbia Gorge wind farm region

Ocean Mixing by Kelvin-Helmholtz Instability

Characterization of white mold disease avoidance in common bean

The role of turbulence stress divergence in decelerating a river plume

Investigation of Amber Snail Management Treatments in Nursery Production Facilities

Evidence that summer jellyfish blooms impact Pacific Northwest salmon production

Evaluation of Three Aging Techniques and Back-calculated Growth for Introduced Blue Catfish from Lake Oconee, Georgia

Energetics of Bottom Ekman Layers during Buoyancy Arrest

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