Index Catalog // ScholarsArchive@OSU

Simulation of storm runoff in the Oregon Coast Range

Creator:: Fedora, Mark A.
Abstract:: Simulation of storm hydrographs in the Oregon Coast Range was explored using the Soil Conservation Service (SCS) curve number methodology, and by developing and testing an antecedent precipitation index (API) method. Standard SCS procedures over-estimated peak discharge by about a factor of two (i.e., average over-prediction of 118 percent). When...
Resource Type:: Masters Thesis

On the estimation and application of spatial and temporal autocorrelation in headwater streams

Creator:: Som, Nicholas A.
Abstract:: This collection of three manuscripts serves to improve methods for collecting, interpreting, and utilizing autocorrelated data from headwater stream networks. Each stream network is comprised of linear segments. These segments lie within a unique branching structure that connects the segments via flowing water, and the connectivity provided by water varies...
Resource Type:: Dissertation
Full Text:: western Oregon. The first objective of this work was to evaluate how different sampling designs captured

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:: was used to force the Distributed Hydrology and Soil Vegetation Model [Wigmosta et al., 1994]. WRF

A coupled hydrologic-geomorphic model for evaluating effects of vegetation change on watersheds

Creator:: Duan, Jinfan
Abstract:: This work describes the modeling framework and initial results for CLAWS (Coupled Landscape And Water System), a physically-based, spatially-distributed hydrologicgeomorphic model that has been coupled with a vegetation dynamics simulation. Spatial variability of topography, soil, vegetation, and climate drive a hydrology module that calculates the water budget at given time...
Resource Type:: Dissertation

Local and downstream effects of contemporary forest harvesting on streamflow and sediment yield

Creator:: Zégre, Nicolas P.
Abstract:: This dissertation is a collection of three manuscripts that serve to fill the knowledge gaps and advance methods of detecting the effects of contemporary forest harvesting in experimental catchment studies. While there is a preponderance of studies evaluating the environmental effects of forest harvesting in the western United States, few...
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 LIST OF FIGURES Figure Page 2.1 Location of the Hinkle Creek Paired Watershed Study, Oregon

Modeling the hydrological aspects of the Fern Lake Watershed : annual report 1971

Creator:: Fowler, Charles W. (Charles Winsor), 1941-, U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Data collected from the Fern Lake watershed between 1958 and 1971 include measurements of the rate of flow of water into the lake through a single inlet stream. The objective of the work presented here is to develop a model of this flow using the climatological data available from the...
Resource Type:: Technical Report
Full Text:: here is to develop a model of this flow using the climatological data available from the watershed

A water balance model for reforestation sites : description and sensitivity

Creator:: Costello, Craig
Abstract:: A model was developed for analysis of the soil water balance of individual reforestation sites in western Oregon. The numerical procedure for this model was programmed in compiled BASIC language and calculations for an entire season are made in about 180 seconds on an IBM AT microcomputer. The processes that...
Resource Type:: Masters Thesis
Full Text:: model was developed for analysis of the soil water balance of individual reforestation sites in western

Modeling surface water and groundwater interactions near Milton-Freewater, Oregon

Creator:: Petrides Jimenez, Aristides Crisostomos
Abstract:: The gravel aquifer of the Oregon side of Walla Walla River Basin has a strong hydrologic connection to surface water through a series of springs, unlined irrigation canals, the Walla Walla River, numerous wells and, since 2004, artificial recharge to the shallow aquifer using infiltration basins. The finite element Integrated...
Resource Type:: Masters Thesis
Full Text:: 3.2 Model Area view from north boundary………………………………………39 3.3 Walla Walla basin watershed Oregon

Watershed response to western juniper control

Creator:: Deboodt, Timothy L.
Abstract:: Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a...
Resource Type:: Dissertation
Full Text:: Watershed Response to Western Juniper Control AN ABSTRACT

Analysis of hydrology and erosion in small, paired watersheds in a juniper-sagebrush area of central Oregon

Creator:: Fisher, Michael, (Michael Patrick), 1966-
Abstract:: Current research indicates that the expansion of western juniper can inhibit soil water retention, storage and prolonged releases from watersheds. This phenomenon is of great importance in eastern Oregon, as western juniper is encroaching into sagebrush/grass communities with a correlated reduction in herbaceous ground cover, resulting in reduced infiltration rates...
Resource Type:: Dissertation
Full Text:: of Hydrology and Erosion in Small, Paired Watersheds in a juniper-sagebrush Area of Central Oregon

ScholarsArchive@OSU

Simulation of storm runoff in the Oregon Coast Range

On the estimation and application of spatial and temporal autocorrelation in headwater streams

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

A coupled hydrologic-geomorphic model for evaluating effects of vegetation change on watersheds

Local and downstream effects of contemporary forest harvesting on streamflow and sediment yield

Modeling the hydrological aspects of the Fern Lake Watershed : annual report 1971

A water balance model for reforestation sites : description and sensitivity

Modeling surface water and groundwater interactions near Milton-Freewater, Oregon

Watershed response to western juniper control

Analysis of hydrology and erosion in small, paired watersheds in a juniper-sagebrush area of central Oregon

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