Index Catalog // ScholarsArchive@OSU

Modeling sediment transport, channel morphology and gravel mining in river bends

Creator:: Nam, Ilgi
Abstract:: A technique is developed and tested to analyze the interaction of flowing water, bed topography, and bedload sediment transport in meandering channels where gravel bars are removed. The method relates the local velocity distribution, bed shear stress and sediment transport conditions to the local bed configuration in river bends before...
Resource Type:: Dissertation
Full Text:: 147 Rhone River 155 VIII. TESTING OF HYPOTHESES AND MODEL REFINEMENTS 160 Shear Stress

Reaeration in a turbulent stream system

Creator:: Ice, George G. and Brown, George Wallace, 1939-
Resource Type:: Technical Report
Full Text:: reasons, foresters need to be able to predict the reaeration rate for a stream in orde r to model the

Stochastic geometry with applications to river networks

Creator:: Peckham, Scott
Abstract:: Empirical observations have established connections between river network geometry and various hydrophysical quantities of interest. Since rivers can be decomposed into basic components known as links, one would like to understand the physical processes at work in link formation and maintenance. The author develops a natural stochastic geometric model for...
Resource Type:: Masters Thesis

A proposed model to predict population in relatively rural areas experiencing rapid economic development

Creator:: Clark, Jerry E., 1949-
Abstract:: In this research a model is developed to predict population for relatively rural areas experiencing rapid economic development. Of the many ways to predict population size, in this research a "demographic-economic" model is chosen for use. The economic variables which aid in projecting population are total employment, and net changes...
Resource Type:: Masters Thesis
Full Text:: in three distinct sub-sections. The first includes a mathematical interpretation of the model in

Semi-emperical [sic] methods for estimating evapotranspiration in a modified marine climate

Creator:: Smith, Jerome Francis
Resource Type:: Masters Thesis
Full Text:: -Through-the-Origin Regression . . . . . . . . 64 Model Performance Improvements using Sliding Avgs . 69

Stream Temperature Modeling for Marys River Watershed

Creator:: Mustafa, Mamoon
Abstract:: High water temperatures in rivers have detrimental effects on riverine water quality and ecology. In this study, two river temperature models, within the agricultural watershed model Soil and Water Assessment Tool (SWAT), were investigated for their ability to simulate water temperatures accurately throughout the year. The original temperature model within...
Resource Type:: Masters Thesis
Full Text:: model was tested for Marys River, a west tributary of the Willamette River in Oregon. The output from

Physical and chemical characteristics of the Yaquina Estuary, Oregon

Creator:: Callaway, Richard J. and Specht, David T.
Abstract:: This report discusses data collected in the Yaquina Estuary from July 1976 through December 1977 at 6-8 week intervals. Also summarized are recording salinometer, runoff and precipitation data from September 1967 through July 1968. Station names and locations for the 76-77 field data are shown in Figure 1. Figure 2...
Resource Type:: Technical Report
Full Text:: .................................................................................................... 32 The Hydrodynamical Model DynHyd

A conceptual model of soil mass movement, surface soil erosion, and stream channel erosion processes

Creator:: Swanson, Frederick J. (Frederick John), 1943-, Swanston, Douglas N., Dyrness, C. T., Cromack, Kermit, Fredriksen, R. L., Moore, Duane G., Glenn, Leslie Fred, 1944-, U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: The conceptual framework of an erosion model has been designed to link processes of mass wasting, surface erosion, and channel storage and transport. A program to stimulate mass wasting will be based on a variation of the factor of safety approach which balances forces tending to drive mass movement against...
Resource Type:: Technical Report
Full Text:: Coast Range), Cedar River (Washington, Cascades). -2- GENERAL EROSION AND SOIL MASS MOVEMENT MODEL

Modeling Elevation-Dependent Snow Sensitivity to Climate Warming in the Data Sparse Eastern Oregon Cascades

Creator:: Cooper, Matthew Guy
Abstract:: In the mountains of the Western US, shifts in the timing and magnitude of snow water equivalent (SWE) over the past century are well documented and attributed to climate warming, but the magnitude of sensitivity depends on elevation. We modeled the spatial distribution of SWE and its sensitivity to climate...
Resource Type:: Masters Thesis
Full Text:: for the Upper Deschutes and McKenzie River Basins, and the model domains for each basin

Physical and chemical characteristics of the Yaquina Estuary, Oregon

Creator:: Callaway, R. J., Specht, David T., and National Health and Environmental Effects Research Laboratory (U.S.). Western Ecology Division. Coastal Ecology Branch
Abstract:: "After a brief description of the setting of the Yaquina Estuary, estuarine dynamics and classification, and estuarine chemistry are presented. Then, temperature-salinity relations are reviewed using the Rattray-Officer model in simulating variable distributions reported by Callaway and Specht (1982) and Callaway (1991). Finally, the numerical models DynHyd and WASP are...
Resource Type:: Technical Report
Full Text:: for this project the "Contractor shall construct a two-dimensional mathematical model of the

ScholarsArchive@OSU

Modeling sediment transport, channel morphology and gravel mining in river bends

Reaeration in a turbulent stream system

Stochastic geometry with applications to river networks

A proposed model to predict population in relatively rural areas experiencing rapid economic development

Semi-emperical [sic] methods for estimating evapotranspiration in a modified marine climate

Stream Temperature Modeling for Marys River Watershed

Physical and chemical characteristics of the Yaquina Estuary, Oregon

A conceptual model of soil mass movement, surface soil erosion, and stream channel erosion processes

Modeling Elevation-Dependent Snow Sensitivity to Climate Warming in the Data Sparse Eastern Oregon Cascades

Physical and chemical characteristics of the Yaquina Estuary, Oregon

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