Stream velocities and reaeration coefficients for the South Umpqua River between Tiller and Roseburg, Oregon, 1991
Water-Resources Investigations Report
92-4191
By: Antonius Laenen and W. H. Woo
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Abstract
Dye-tracer and gas-tracer studies were done in July and September 1991 during low flows on four reaches of the South Umpqua River between Tiller and Roseburg, Oregon. For a stream flow of 435 cubic feet per second at the Brockway streamflow monitoring site (14312000), the average stream velocity between Tiller and Myrtle Creek is estimated at 0.88 feet per second, and between Myrtle Creek and Roseburg is estimated at 0.64 feet per second. For a streamflow of 129 cubic feet per second at the Brockway site, the average stream velocity between Tiller and Myrtle Creek is estimated at 0.34 feet per second, and between Myrtle Creek and Roseburg is estimated at 0.23 feet per second. For a streamflow of 129 cubic feet per second at the Brockway site, the reaeration coefficients determined from gas-desorption data collected in the selected reaches for this study ranged from 1.03 to 8.35 per day. The reaeration coefficients determined for this study were approximately two times larger than values derived using a semiempirical formula and at least five times larger than the values derived using a conceptual formula. Average stream-reach velocity, depth, and slope data that were used to compute reaeration coefficients were collected during this study. Reaeration coefficient formulas developed for the South Umpqua River between Tiller and Roseburg are presented in this report.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Stream velocities and reaeration coefficients for the South Umpqua River between Tiller and Roseburg, Oregon, 1991 |
| Series title | Water-Resources Investigations Report |
| Series number | 92-4191 |
| DOI | 10.3133/wri924191 |
| Year Published | 1994 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | South Atlantic Water Science Center |
| Description | v, 26 p. |
| Country | United States |
| State | Oregon |
| City | Roseberg, Tiller |
| Other Geospatial | Umpqua River |
| Google Analytic Metrics | Metrics page |