Author: Annett Brigitte Sullivan
Publisher:
ISBN:
Category : Flood dams and reservoirs
Languages : en
Pages : 48
Book Description
Modeling Streamflow and Water Temperature in the North Santiam and Santiam Rivers, Oregon, 2001-02
Author: Annett Brigitte Sullivan
Publisher:
ISBN:
Category : Flood dams and reservoirs
Languages : en
Pages : 48
Book Description
Publisher:
ISBN:
Category : Flood dams and reservoirs
Languages : en
Pages : 48
Book Description
Development of a HEC-RAS Temperature Model for the North Santiam River, Northwestern Oregon
Author: Adam Stonewall
Publisher:
ISBN:
Category : Water temperature
Languages : en
Pages : 26
Book Description
A one-dimensional, unsteady streamflow and temperature model (HEC-RAS) of the North Santiam and Santiam Rivers was developed by the U.S. Geological Survey to be used in conjunction with previously developed two-dimensional hydrodynamic water-quality models (CE-QUAL-W2) of Detroit and Big Cliff Lakes upstream of the study area. In conjunction with the output from the previously developed models, the HEC-RAS model can simulate streamflows and temperatures within acceptable limits (mean error [bias] near zero; typical streamflow errors less than 5 percent; typical water temperature errors less than 1.0 °C) for the length of the North Santiam River downstream of Big Cliff Dam under a series of potential future conditions in which dam structures and/or dam operations are modified to improve temperature conditions for threatened and endangered fish. Although a two-dimensional (longitudinal, vertical) CE-QUAL-W2 model for the North Santiam and Santiam Rivers downstream of Big Cliff Dam exists, that model proved unstable under highly variable flow conditions. The one-dimensional HEC-RAS model documented in this report can better simulate cross-sectional-averaged stream temperatures under a wide range of flow conditions. The model was calibrated using 2011 streamflow and temperature data. Measured data were used as boundary conditions when possible, although several lateral inflows and their associated water temperatures, including the South Santiam River, were estimated using statistical models. Streamflow results showed high accuracy during low-flow periods, but predictions were biased low during large storm events when unmodeled ephemeral tributaries contributed to the actual streamflow. Temperature results showed low annual bias against measured data at two locations on the North Santiam River and one location on the Santiam River. Mean absolute errors using 2011 hourly data ranged from 0.4 to 0.7 °C. Model results were checked against 2012 data and showed a positive bias at the Santiam River station (+0.6 C). Annual mean absolute errors using 2012 hourly data ranged from 0.4 to 0.8 °C. Much of the error in temperature predictions resulted from the models inability to accurately simulate the full range of diurnal fluctuations during the warmest months. Future iterations of the model could be improved by the collection and inclusion of additional streamflow and temperature data, especially near the mouth of the South Santiam River. Presently, the model is able to predict hourly and daily water temperatures under a wide variety of conditions with a typical error of 0.8 and 0.7 °C, respectively.
Publisher:
ISBN:
Category : Water temperature
Languages : en
Pages : 26
Book Description
A one-dimensional, unsteady streamflow and temperature model (HEC-RAS) of the North Santiam and Santiam Rivers was developed by the U.S. Geological Survey to be used in conjunction with previously developed two-dimensional hydrodynamic water-quality models (CE-QUAL-W2) of Detroit and Big Cliff Lakes upstream of the study area. In conjunction with the output from the previously developed models, the HEC-RAS model can simulate streamflows and temperatures within acceptable limits (mean error [bias] near zero; typical streamflow errors less than 5 percent; typical water temperature errors less than 1.0 °C) for the length of the North Santiam River downstream of Big Cliff Dam under a series of potential future conditions in which dam structures and/or dam operations are modified to improve temperature conditions for threatened and endangered fish. Although a two-dimensional (longitudinal, vertical) CE-QUAL-W2 model for the North Santiam and Santiam Rivers downstream of Big Cliff Dam exists, that model proved unstable under highly variable flow conditions. The one-dimensional HEC-RAS model documented in this report can better simulate cross-sectional-averaged stream temperatures under a wide range of flow conditions. The model was calibrated using 2011 streamflow and temperature data. Measured data were used as boundary conditions when possible, although several lateral inflows and their associated water temperatures, including the South Santiam River, were estimated using statistical models. Streamflow results showed high accuracy during low-flow periods, but predictions were biased low during large storm events when unmodeled ephemeral tributaries contributed to the actual streamflow. Temperature results showed low annual bias against measured data at two locations on the North Santiam River and one location on the Santiam River. Mean absolute errors using 2011 hourly data ranged from 0.4 to 0.7 °C. Model results were checked against 2012 data and showed a positive bias at the Santiam River station (+0.6 C). Annual mean absolute errors using 2012 hourly data ranged from 0.4 to 0.8 °C. Much of the error in temperature predictions resulted from the models inability to accurately simulate the full range of diurnal fluctuations during the warmest months. Future iterations of the model could be improved by the collection and inclusion of additional streamflow and temperature data, especially near the mouth of the South Santiam River. Presently, the model is able to predict hourly and daily water temperatures under a wide variety of conditions with a typical error of 0.8 and 0.7 °C, respectively.
Modeling hydrodynamics, water temperature, and suspended sediment in Detroit Lake, Oregon
Author:
Publisher: DIANE Publishing
ISBN: 9781422325797
Category :
Languages : en
Pages : 108
Book Description
Publisher: DIANE Publishing
ISBN: 9781422325797
Category :
Languages : en
Pages : 108
Book Description
Modeling Water Quality Effects of Structural and Operational Changes to Scoggins Dam and Henry Hagg Lake, Oregon
Author: Annett Brigitte Sullivan
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 48
Book Description
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 48
Book Description
Precipitation-runoff and Streamflow-routing Models for the Willamette River Basin, Oregon
Author: Antonius Laenen
Publisher:
ISBN:
Category : Runoff
Languages : en
Pages : 208
Book Description
Publisher:
ISBN:
Category : Runoff
Languages : en
Pages : 208
Book Description
Updates to Models of Streamflow and Water Temperature for 2011, 2015, and 2016 in Rivers of the Willamette River Basin, Oregon
Author: Laurel E. Stratton Garvin
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 0
Book Description
Scientific Investigations Report
Author: Sharon E. Kroening
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 122
Book Description
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 122
Book Description
Estimates of Ground-water Recharge, Base Flow, and Stream Reach Gains and Losses in the Willamette River Basin, Oregon
Author: Karl K. Lee
Publisher:
ISBN:
Category : Groundwater flow
Languages : en
Pages : 62
Book Description
Publisher:
ISBN:
Category : Groundwater flow
Languages : en
Pages : 62
Book Description
The Handbook of Groundwater Engineering
Author: John H. Cushman
Publisher: CRC Press
ISBN: 1498703054
Category : Science
Languages : en
Pages : 1092
Book Description
This new edition adds several new chapters and is thoroughly updated to include data on new topics such as hydraulic fracturing, CO2 sequestration, sustainable groundwater management, and more. Providing a complete treatment of the theory and practice of groundwater engineering, this new handbook also presents a current and detailed review of how to model the flow of water and the transport of contaminants both in the unsaturated and saturated zones, covers the protection of groundwater, and the remediation of contaminated groundwater.
Publisher: CRC Press
ISBN: 1498703054
Category : Science
Languages : en
Pages : 1092
Book Description
This new edition adds several new chapters and is thoroughly updated to include data on new topics such as hydraulic fracturing, CO2 sequestration, sustainable groundwater management, and more. Providing a complete treatment of the theory and practice of groundwater engineering, this new handbook also presents a current and detailed review of how to model the flow of water and the transport of contaminants both in the unsaturated and saturated zones, covers the protection of groundwater, and the remediation of contaminated groundwater.
Ground-water Hydrology of the Upper Deschutes Basin, Oregon
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 92
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 92
Book Description