Publications
All of our publications are accessible through the USGS Publication Warehouse. Publications by scientists of the Oregon Water Science Center are listed below.
Filter Total Items: 795
The North Santiam River, Oregon, water-quality monitoring network The North Santiam River, Oregon, water-quality monitoring network
No abstract available.
Authors
Heather M. Bragg, Mark A. Uhrich
Water-quality and algal conditions in the Clackamas River basin, Oregon, and their relations to land and water management Water-quality and algal conditions in the Clackamas River basin, Oregon, and their relations to land and water management
In 1998, the U.S. Geological Survey sampled the Clackamas River, its major tributaries, and reservoirs to characterize basic water quality (nutrients, dissolved oxygen, pH, temperature, and conductance), water quantity (water sources within the basin), and algal conditions (biomass and species composition). Sampling locations reflected the dominant land uses in the basin (forest...
Authors
Kurt D. Carpenter
Klamath River Basin Hydrologic Conditions Prior to the September 2002 Die-Off of Salmon and Steelhead Klamath River Basin Hydrologic Conditions Prior to the September 2002 Die-Off of Salmon and Steelhead
More than 33,000 salmon and steelhead died in the lower Klamath River in late September 2002 on their way to spawning areas upstream. According to the California Department of Fish and Game, the cause of death was infection by protozoan and bacterial pathogens. Two factors that may have contributed to the disease incidence are low streamflow and high water temperature. September...
Authors
Dennis D. Lynch, John C. Risley
The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon
Three sediment oxygen demand (SOD) measurement chambers were deployed in the Tualatin River near Tigard, Oregon, at river mile 10 in August 2000. SOD rates were calculated for three different circulation velocities during each chamber deployment. The SOD rate at each velocity was calculated from a graph of dissolved oxygen concentration versus elapsed time. An acoustic doppler current...
Authors
Micelis C. Doyle, Stewart Rounds
Occurrence and distribution of dissolved trace elements in the surface waters of the Yakima River basin, Washington Occurrence and distribution of dissolved trace elements in the surface waters of the Yakima River basin, Washington
The occurrence, distribution, and transport of dissolved (filtered-water) trace elements in the surface waters of the Yakima River Basin were assessed using data collected between 1999 and 2000 as part of the U.S. Geological Survey s National Water-Quality Assessment (NAWQA) Program. Samples were collected at 34 sites throughout the basin in August 1999, using a Lagrangian sampling...
Authors
Curt A. Hughes
Phosphorus and E. coli and their relation to selected constituents during storm runoff conditions in Fanno Creek, Oregon, 1998-99 Phosphorus and E. coli and their relation to selected constituents during storm runoff conditions in Fanno Creek, Oregon, 1998-99
No abstract available.
Authors
Chauncey W. Anderson, Stewart A. Rounds
Estimating water temperatures in small streams in western Oregon using neural network models Estimating water temperatures in small streams in western Oregon using neural network models
Artificial neural network models were developed to estimate water temperatures in small streams using data collected at 148 sites throughout western Oregon from June to September 1999. The sites were located on 1st-, 2nd-, or 3rd-order streams having undisturbed or minimally disturbed conditions. Data collected at each site for model development included continuous hourly water...
Authors
John C. Risley, Edwin A. Roehl, Paul Conrads
Total dissolved gas and water temperature in the lower Columbia River, Oregon and Washington, 2003: Quality-assurance data and comparison to water-quality standards Total dissolved gas and water temperature in the lower Columbia River, Oregon and Washington, 2003: Quality-assurance data and comparison to water-quality standards
Authors
Dwight Q. Tanner, Heather M. Bragg, Matthew W. Johnston
Monitoring instream turbidity to estimate continuous suspended-sediment loads and yields and clay-water volumes in the upper North Santiam River Basin, Oregon, 1998-2000 Monitoring instream turbidity to estimate continuous suspended-sediment loads and yields and clay-water volumes in the upper North Santiam River Basin, Oregon, 1998-2000
Three real-time, instream water-quality and turbidity-monitoring sites were established in October 1998 in the upper North Santiam River Basin on the North Santiam River, the Breitenbush River, and Blowout Creek, the main tributary inputs to Detroit Lake, a large, controlled reservoir that extends from river mile 61 to 70. Suspended-sediment samples were collected biweekly to monthly at...
Authors
Mark A. Uhrich, Heather M. Bragg
Fecal-indicator bacteria in the Yakima River Basin, Washington: An examination of 1999 and 2000 synoptic-sampling data and their relation to historical data Fecal-indicator bacteria in the Yakima River Basin, Washington: An examination of 1999 and 2000 synoptic-sampling data and their relation to historical data
The Yakima Basin National Water-Quality Assessment Program collected fecal-coliform bacteria samples during three synoptic samplings to identify and quantify the cause, source, transport, and effects of fecal-indicator bacteria in Yakima River Basin streams. The August 1999 synoptic sampling targeted the Yakima River main-stem and tributary sites, while the July and October-November 2000...
Authors
Jennifer L. Morace, Stuart W. McKenzie
Selected elements and organic chemicals in streambed sediment in the Salem area, Oregon, 1999 Selected elements and organic chemicals in streambed sediment in the Salem area, Oregon, 1999
Analysis of streambed sediments in the Salem, Oregon, area showed anomalously large concentrations of some elements and organic chemicals, indicating contamination from anthropogenic and/or geologic sources. The streambed sediment sample from Clark Creek, an urban basin, had large concentrations of polycyclic aromatic hyrdocarbons (PAHs), organochlorines, cadmium, lead, and zinc. The...
Authors
Dwight Q. Tanner