Index Catalog // ScholarsArchive@OSU

Hydrology and delineation in four wetlands in the Oregon Cascades

Creator:: MacLeod, Norman A.
Abstract:: Four wetland sites were identified and delineated in Silver Falls State Park, Oregon using procedures outlined in the 1989 Federal Manual for the Identification and Delineation of Jurisdictional Wetlands and subsequently monitored for a ten month period. A network of 225 shallow (32") wells was installed throughout the sites to...
Resource Type:: Masters Thesis

The effects of channel modification on characteristics of streams during low flow

Creator:: Atkinson, Brett
Abstract:: Fluorescent dye was used to assess summer low flow hydraulic retention and transient storage (dead zone) associated with fish habitat structures at Camp Creek, Drift Creek, and the East Fork of Lobster Creek within the central Coast Range of Oregon. Utilizing channel units to stratify stream reaches, the effect of...
Resource Type:: Masters Thesis

Physical dimensions and hydrologic effects of beaver ponds on Kuiu Island in southeast Alaska

Creator:: Beedle, David L.
Abstract:: Dimensional characteristics of 44 beaver dams and ponds on Kuiu Island in Southeast Alaska were determined to evaluate the hydrologic effects of these structures on peak flows. The study area consisted of low gradient, incised streams in broad U-shaped valleys. Pond routing simulations were conducted using four return intervals (2-,...
Resource Type:: Masters Thesis

Evaporative heat loss of the upper Middle Fork of the John Day River, northeastern Oregon

Creator:: Benner, David A.
Abstract:: Evaporation was studied along the Middle Fork of the John Day River in northeastern Oregon. Evaporation pans and various meteorological sensors recorded data at nine sites during the summer of 1998; measurements were made at each site over a 3-4 day period. A Dalton-type evaporation model was produced using water...
Resource Type:: Masters Thesis

Stream temperatures, riparian vegetation, and channel morphology in the Upper Grande Ronde River Watershed, Oregon

Creator:: Bohle, Todd S.
Abstract:: The Upper Grande Ronde River Watershed in northeastern Oregon is considered important habitat for threatened stocks of chinook salmon (Oncorhynchus tshawytscha). Documented reductions in channel complexity and riparian vegetation within the watershed have increased concern over loss of viable habitat. An important component of salmonid habitat is stream temperature during...
Resource Type:: Masters Thesis

Influence of hillslope and instream processes on channel morphology of Esmond Creek in the Oregon Coast Range

Creator:: Dent, Elizabeth F.
Abstract:: Esmond Creek is a tributary to the Siuslaw River located in the Oregon Coast Range. It is 18 km in length and drains a watershed area is 48.9 km². Average channel gradient of the study reach is 0.9%. In 1988 a landslide occurred in the Esmond Creek watershed involving approximately...
Resource Type:: Masters Thesis

Summertime stream temperatures in the North and South Forks of the Sprague River, south central Oregon

Creator:: Friedrichsen, Paul T.
Abstract:: The Upper Sprague River Watershed (North and South Forks of the Sprague River) in south central Oregon provides important habitat for salmonid species, including native bull trout (Salvelinus confluentus) and redband trout (Oncorhynchus mykiss ssp.). Concern over the loss of viable habitat for these species has increased due to reductions...
Resource Type:: Masters Thesis

The effect of the size and orientation of large wood on pool volume in two Oregon Coast Range streams

Creator:: Lombard, Pamela
Abstract:: This study was conducted to determine how the size and orientation of large wood placed in streams in combination with peak flows, substrate and channel gradient affect pool volume, surface area and maximum depth in two coastal Oregon streams. Eighteen Douglas-fir (Pseudotsuga menziesii) logs were placed in each of two...
Resource Type:: Masters Thesis

Groundwater elevations and temperature adjacent to a beaver pond in central Oregon

Creator:: Lowry, Michael M.
Abstract:: This study was designed and implemented to observe the spatial and temporal dynamics of groundwater levels and temperatures adjacent to a beaver pond in semi-arid central Oregon. The study site was located on the eastern boundary of Painted Hills National Monument along Bridge Creek, a tributary to the John Day...
Resource Type:: Masters Thesis

Shallow aquifer characteristics adjacent to the upper Middle Fork John Day River, eastern Oregon

Creator:: Hopson, Richard G.
Abstract:: Subsurface inputs into lotic systems are a primary mechanism for cooling streams with high ambient water temperatures. Objectives of this study include: 1) to determine the effectiveness of Forward Looking Infrared (FLIR) thermal imagery to detect shallow aquifers, 2) to characterize certain physical, spatial, and temporal characteristics of the fluvial,...
Resource Type:: Masters Thesis

Subsurface flow of a forested riparian area in the Oregon coast range

Creator:: Reiter, Maryanne
Abstract:: This study was undertaken to gain further understanding of the subsurface hydrology for a stream-adjacent riparian area in Western Oregon's Coast Range. Spatial and temporal fluctuations of the free water surface of a toeslope, adjacent riparian area, and stream channel in a forested terrace reach were monitored over a period...
Resource Type:: Masters Thesis

Undercut streambanks in forested headwater streams of the Oregon coast range

Creator:: Salminen, Edward M.
Abstract:: This study was undertaken to evaluate the occurrence and characteristics of undercut streambanks in forested headwater streams of the Oregon Coast Range. Undercut streambanks and associated reach characteristics were surveyed along 46 sample reaches (each 152 m in length) in 8 streams; all sample reaches occurred in unmanaged forested riparian...
Resource Type:: Masters Thesis

Sedimentation of beaver ponds in an Oregon Coast Range stream

Creator:: Ringer, Gina O.
Abstract:: Through the trapping of sediment behind dams, the presence of beaver in a watershed may cause substantial changes to fluvial and geomorphic processes. In an effort to investigate sedimentation patterns in beaver ponds in the Oregon Coast Range, a case study was made of the annual accumulation of sediment in...
Resource Type:: Masters Thesis

Valley fill and channel incision in Meyer's Canyon, northcentral Oregon

Creator:: Peacock, Kathi A.
Abstract:: Meyer's Canyon, a tributary of Bridge Creek in the John Day Basin, is a deeply incised valley fill in northcentral Oregon. The current channel is incised to the Cretaceous and Tertiary bedrock. To determine the precedence of the current incision and the variation and timing of depositional sequences, the sediments...
Resource Type:: Masters Thesis

Municipal water source turbidities following timber harvest and road construction in western Oregon

Creator:: Grizzel, Jeffrey D.
Abstract:: Many municipalities throughout western Oregon rely upon forested watersheds as a source for domestic water supply. These watersheds are commonly managed by state or federal agencies or private corporations for timber production. Activities related to forest management within municipal watersheds have the potential to adversely affect water quality. Timber harvesting...
Resource Type:: Masters Thesis

Summertime water temperature trends in Steamboat Creek Basin, Umpqua National Forest

Creator:: Holaday, Steven A.
Abstract:: The Steamboat Creek basin drains 227 mi² (588 km²) of steep forested terrain into the North Umpqua River of Southwest Oregon, 39 mi (63 km) northeast of Roseburg. Summer base flows for Steamboat Creek average 83 cfs (2.35 m³/sec). Steamboat Creek and its tributaries are considered important to the production...
Resource Type:: Masters Thesis

Coarse woody debris in streams of the Drift Creek Basin, Oregon

Creator:: Veldhuisen, Curt N.
Abstract:: This study examined the occurrence of coarse woody debris (i.e., pieces greater than 0.15 m in diameter and 2.0 m in length) in first- through fifth-order streams located within the Drift Creek Basin of the Oregon Coast Range. Nine "tributary reaches" were surveyed to determine how three land management treatments...
Resource Type:: Masters Thesis

Object Watershed Link Simulation (OWLS)

Creator:: Chen, Huaisheng
Abstract:: Object Watershed Link Simulation (OWLS) is a physically based watershed model. In the OWLS model, a watershed is defined as a three-dimensional object with linkages between cells and their attributes (e.g., area, slope, soil type, etc.). A cell is defined as the linkages of edges and their attributes (e.g., length,...
Resource Type:: Dissertation

ScholarsArchive@OSU

Hydrology and delineation in four wetlands in the Oregon Cascades

The effects of channel modification on characteristics of streams during low flow

Physical dimensions and hydrologic effects of beaver ponds on Kuiu Island in southeast Alaska

Evaporative heat loss of the upper Middle Fork of the John Day River, northeastern Oregon

Stream temperatures, riparian vegetation, and channel morphology in the Upper Grande Ronde River Watershed, Oregon

Influence of hillslope and instream processes on channel morphology of Esmond Creek in the Oregon Coast Range

Summertime stream temperatures in the North and South Forks of the Sprague River, south central Oregon

The effect of the size and orientation of large wood on pool volume in two Oregon Coast Range streams

Groundwater elevations and temperature adjacent to a beaver pond in central Oregon

Shallow aquifer characteristics adjacent to the upper Middle Fork John Day River, eastern Oregon

Subsurface flow of a forested riparian area in the Oregon coast range

Undercut streambanks in forested headwater streams of the Oregon coast range

Sedimentation of beaver ponds in an Oregon Coast Range stream

Valley fill and channel incision in Meyer's Canyon, northcentral Oregon

Municipal water source turbidities following timber harvest and road construction in western Oregon

Summertime water temperature trends in Steamboat Creek Basin, Umpqua National Forest

Coarse woody debris in streams of the Drift Creek Basin, Oregon

Object Watershed Link Simulation (OWLS)

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