A case study examining the relationship between stream temperatures and the thermal environment through which streams flow was conducted on the headwaters of 4 tributaries of the Burnt River (Barney, Elk, Greenhorn, and Stevens Creeks) in northeastern Oregon during July through August 1998 and 1999. Barney Creek and Stevens Creek...
The temperature of the water in our streams and rivers is very important to the well-being of fish and other aquatic organisms. Most species need cool water to survive. As a result, Oregon’s water-quality standards include maximum stream temperature criteria. Streams that are monitored and found to exceed these temperatures...
The WET-Temp (Watershed Evaluation Tool Temperature) model is designed to take advantage of spatially explicit datasets to predict stream temperature distribution. Datasets describing vegetation cover, stream network locations, elevation and stream discharge are utilized by WET-Temp to quantify geometric relationships between the sun, stream channel and riparian areas. These relationships...
The Elk River Basin drains 93 sq ml of steep forested terrain
on the west side of the Klamath Mountains in Southwest Oregon.
This river and its tributaries support a diverse and abundant
population of anadromous fish; a hatchery located at river mile 13
(km 21) supplements these native populations....
Oregon water temperature standards were described by former Oregon Governor John Kitzhaber’s Office as “an important component of the water quality element of the Oregon Plan [for Salmon and Watersheds]”. In 1998, Governor Kitzhaber’s Office and the Oregon Legislature asked the Independent Multidisciplinary Science Team (IMST) to examine and review...
Many streams in eastern Oregon are listed as water quality impaired on the basis of water temperature. However, it is often difficult to predict water temperature for these streams even if there are no anthropogenic impacts. We measured air and water temperature and stream characteristics on three Type C and...
A case study was performed in 2000 and 2001 to characterize the thermal pattern of four morphologically similar eastern Oregon streams and to identify the physical and environmental factors that expressed significant and functionally viable relationships with stream temperature (daily maximum, daily minimum and daily rate of heating). Stream and...
Two tributaries of the south fork of the Burnt River, near Unity Oregon were studied
during the summers of 2000 and 2001 to determine water heating and cooling
patterns. Hourly temperature data were recorded for air, water, and soil parameters
at four elevations 150m apart on Barney and Stevens Creeks....
Buffer strips have been proposed as a method for controlling temperature changes in streams adjacent to clear-cuttings. Nine small mountain streams in Oregon's Coast Range and Cascade Mountains were studied to determine the influence of buffer strips on water temperature. Timber volume in the strip, strip width, and canopy density...
During the summer of 1972 we sampled the Umpqua River estuary to determine distribution of fish populations. As a part of that study temperature and salinity data were collected monthly throughout the estuary. The environmental data should help explain the distributions of various fishes within the estuary and be useful...