Search

Search Results

• 21. [Article] Analysis and prediction of the water temperature of the McKenzie River, Oregon using the equilibrium temperature approach

  A one dimensional, steady flow, unsteady temperature model is used to evaluate the effects of two U.S. Army Corps of Engineers (COE) dams and resulting reservoirs on hourly water temperatures of the mainstem ...

  Citation × Citation Citation Abstract Copy Title: Analysis and prediction of the water temperature of the McKenzie River, Oregon using the equilibrium temperature approach Author: Hansen, R. Peder Year: 1986 A one dimensional, steady flow, unsteady temperature model is used to evaluate the effects of two U.S. Army Corps of Engineers (COE) dams and resulting reservoirs on hourly water temperatures of the mainstem McKenzie River from Delta Park (RM 62.1) to Leaburg Dam (RM 38.8). Both COE projects are on tributaries to the McKenzie River and at present have only bottom withdrawl capabilities. Title: Analysis and prediction of the water temperature of the McKenzie River, Oregon using the equilibrium temperature approach Author: Hansen, R. Peder Year: 1986 A one dimensional, steady flow, unsteady temperature model is used to evaluate the effects of two U.S. Army Corps of Engineers (COE) dams and resulting reservoirs on hourly water temperatures of the mainstem McKenzie River from Delta Park (RM 62.1) to Leaburg Dam (RM 38.8). Both COE projects are on tributaries to the McKenzie River and at present have only bottom withdrawl capabilities. Close

• 22. [Article] Saving the Yellowstone

  The Yellowstone River remains the only major free-flowing stream in the lower 48 states. Defenders of free-flowing status argue that benefits derived from maintaining the historic river surpass those gained ...

  Citation × Citation Citation Abstract Copy Title: Saving the Yellowstone Author: Lang, William L. Year: 1985 The Yellowstone River remains the only major free-flowing stream in the lower 48 states. Defenders of free-flowing status argue that benefits derived from maintaining the historic river surpass those gained through dams. The 1973 Montana Water Use Act placed water allocation in the state's hands, and the 1974 Yellowstone Moratorium gave the state three years to determine the Yellowstone's future. The Montana Fish and Game Department requested maintenance of the instream flow to protect the fisheries and the river, and the state Natural Resources board partially granted the request, thereby preventing dams on the Yellowstone. Title: Saving the Yellowstone Author: Lang, William L. Year: 1985 The Yellowstone River remains the only major free-flowing stream in the lower 48 states. Defenders of free-flowing status argue that benefits derived from maintaining the historic river surpass those gained through dams. The 1973 Montana Water Use Act placed water allocation in the state's hands, and the 1974 Yellowstone Moratorium gave the state three years to determine the Yellowstone's future. The Montana Fish and Game Department requested maintenance of the instream flow to protect the fisheries and the river, and the state Natural Resources board partially granted the request, thereby preventing dams on the Yellowstone. Close

• 23. [Article] Lake Roosevelt Water Quality and Hydrodynamic Model Calibration with Fish Bioenergetics

  An understanding of the effects of hydrodynamics and reservoir operations on the Franklin D. Roosevelt Lake (Lake Roosevelt) aquatic food web allows for better management of the reservoir. A CE-QUAL-W2, ...

  Citation × Citation Citation Abstract Copy Title: Lake Roosevelt Water Quality and Hydrodynamic Model Calibration with Fish Bioenergetics Author: McKillip, Michael Lee Year: 2007 An understanding of the effects of hydrodynamics and reservoir operations on the Franklin D. Roosevelt Lake (Lake Roosevelt) aquatic food web allows for better management of the reservoir. A CE-QUAL-W2, v.3.5, hydrodynamic and water quality model (Cole and Wells, 20061) is being applied to the reservoir. The models zooplankton algorithms are expanded and a fish bioenergetics model is incorporated. The Lake Roosevelt model extent is shown in Figure 1. The model includes the lacustrine arms up to full pool on the Sanpoil, Kettle, and Colville Rivers; the Spokane River arm up to Little Falls Dam; and the Columbia River from Grand Coulee Dam to the U.S.-Canadian border. The previous companion report, “Boundary Conditions and Set-up” (McKillip, Annear, and Wells, 2006), covered • A limnological overview • Hydrodynamic boundary condition data and model inputs • Grand Coulee Dam structures (powerhouse and spillway characteristics) • Water temperature boundary condition data and model inputs • Meteorological data and model inputs • Water quality boundary condition data • Model bathymetry data and model grid development • Topographic shading • Primary and secondary production data • Kokanee hatchery release data This report discusses the model calibration and issues related to the calibration. This report discusses the topics of: 1) Hydrodynamic calibration: Hydrodynamic calibration focuses on matching the water surface elevation at Grand Coulee Dam. 2) Temperature calibration: Temperature calibration focuses on matching temperature profiles throughout the reservoir and continuous data below Grand Coulee Dam. Many of the calibration issues centered on properly characterizing the localized wind and powerhouse withdrawals. 3) Abiotic water quality calibration: Abiotic water quality calibration focused on matching water quality profile data in the reservoir. The selection of proper rate kinetics and understanding the impact of hydrodynamics on water quality state variables was critical to proper calibration. 4) Bioenergetic (algae, zooplankton, kokanee) modeling approach and calibration 5) Sensitivity analyses Title: Lake Roosevelt Water Quality and Hydrodynamic Model Calibration with Fish Bioenergetics Author: McKillip, Michael Lee Year: 2007 An understanding of the effects of hydrodynamics and reservoir operations on the Franklin D. Roosevelt Lake (Lake Roosevelt) aquatic food web allows for better management of the reservoir. A CE-QUAL-W2, v.3.5, hydrodynamic and water quality model (Cole and Wells, 20061) is being applied to the reservoir. The models zooplankton algorithms are expanded and a fish bioenergetics model is incorporated. The Lake Roosevelt model extent is shown in Figure 1. The model includes the lacustrine arms up to full pool on the Sanpoil, Kettle, and Colville Rivers; the Spokane River arm up to Little Falls Dam; and the Columbia River from Grand Coulee Dam to the U.S.-Canadian border. The previous companion report, “Boundary Conditions and Set-up” (McKillip, Annear, and Wells, 2006), covered • A limnological overview • Hydrodynamic boundary condition data and model inputs • Grand Coulee Dam structures (powerhouse and spillway characteristics) • Water temperature boundary condition data and model inputs • Meteorological data and model inputs • Water quality boundary condition data • Model bathymetry data and model grid development • Topographic shading • Primary and secondary production data • Kokanee hatchery release data This report discusses the model calibration and issues related to the calibration. This report discusses the topics of: 1) Hydrodynamic calibration: Hydrodynamic calibration focuses on matching the water surface elevation at Grand Coulee Dam. 2) Temperature calibration: Temperature calibration focuses on matching temperature profiles throughout the reservoir and continuous data below Grand Coulee Dam. Many of the calibration issues centered on properly characterizing the localized wind and powerhouse withdrawals. 3) Abiotic water quality calibration: Abiotic water quality calibration focused on matching water quality profile data in the reservoir. The selection of proper rate kinetics and understanding the impact of hydrodynamics on water quality state variables was critical to proper calibration. 4) Bioenergetic (algae, zooplankton, kokanee) modeling approach and calibration 5) Sensitivity analyses Close

• 24. [Article] Upper Spokane River Model: Model Calibration, 1991 and 2000

  The Washington Department of Ecology is interested in a water quality model for the Upper Spokane River system for use in developing Total Maximum Daily Loads (TMDLs). The goals of this modeling effort ...

  Citation × Citation Citation Abstract Copy Title: Upper Spokane River Model: Model Calibration, 1991 and 2000 Author: Berger, Chris, Annear, Robert Leslie, Wells, Scott A. Year: 2002 The Washington Department of Ecology is interested in a water quality model for the Upper Spokane River system for use in developing Total Maximum Daily Loads (TMDLs). The goals of this modeling effort are to: • Gather data to construct a computer simulation model of the Spokane River system including Long Lake Reservoir and the pools behind Nine Mile dam, Upper Falls dam and Upriver dam. • Ensure that the model accurately represents the system hydrodynamics and water quality (flow, temperature, dissolved oxygen and nutrient dynamics) This report evaluates the model calibration and discusses issues relative to that calibration effort. The calibration effort focused on model predictions of hydrodynamics (flow and water level), temperature, and eutrophication model parameters (such as nutrients, algae, dissolved oxygen, organic matter, coliform). The model calibration periods were from February 1, 1991 to October 31, 1991 and from January 1, 2000 to October 31, 2000. Title: Upper Spokane River Model: Model Calibration, 1991 and 2000 Author: Berger, Chris, Annear, Robert Leslie, Wells, Scott A. Year: 2002 The Washington Department of Ecology is interested in a water quality model for the Upper Spokane River system for use in developing Total Maximum Daily Loads (TMDLs). The goals of this modeling effort are to: • Gather data to construct a computer simulation model of the Spokane River system including Long Lake Reservoir and the pools behind Nine Mile dam, Upper Falls dam and Upriver dam. • Ensure that the model accurately represents the system hydrodynamics and water quality (flow, temperature, dissolved oxygen and nutrient dynamics) This report evaluates the model calibration and discusses issues relative to that calibration effort. The calibration effort focused on model predictions of hydrodynamics (flow and water level), temperature, and eutrophication model parameters (such as nutrients, algae, dissolved oxygen, organic matter, coliform). The model calibration periods were from February 1, 1991 to October 31, 1991 and from January 1, 2000 to October 31, 2000. Close

• 25. [Article] The User-Centered Repository: Foundational Conversations and Services

  Launching a successful digital repository takes more than selecting the right software and hiring the right staff. How do libraries know that they’re developing repository services that their users want? ...

  Citation × Citation Citation Abstract Copy Title: The User-Centered Repository: Foundational Conversations and Services Author: Anderson, Maija, Banerjee, Kyle, Forero, David, Thornhill, Kate Year: 2016 Launching a successful digital repository takes more than selecting the right software and hiring the right staff. How do libraries know that they’re developing repository services that their users want? How do you lobby administration for the funding and staff needed for a new program? How do you ensure a digital initiative's success? OHSU Library’s DAM/IR Task Force share their experiences developing relationships, getting administrative support, and implementing a marketing and communications digital assets management system, which is now in the implementation phase. From the beginning of this process, the library took the opposite of the "If we build they will come" approach. This panel presentation focuses on how the OHSU Library built support for repository services by connecting with prospective users, and how the DAM/IR Task Force continues to involve users during implementation. Decisions around DAM implementation are not only informed by expertise in repositories management, digital library systems administration, and digital preservation, but also by stakeholder perspectives from across the OHSU campus. Panelists’ presentations emphasize the process, timeline, and methods for lobbying administration; advocating and communicating with IT departments; approaches to user-focused repository system selection, installation, and migration; and ensuring digital repository management best practices at the stakeholder level. Title: The User-Centered Repository: Foundational Conversations and Services Author: Anderson, Maija, Banerjee, Kyle, Forero, David, Thornhill, Kate Year: 2016 Launching a successful digital repository takes more than selecting the right software and hiring the right staff. How do libraries know that they’re developing repository services that their users want? How do you lobby administration for the funding and staff needed for a new program? How do you ensure a digital initiative's success? OHSU Library’s DAM/IR Task Force share their experiences developing relationships, getting administrative support, and implementing a marketing and communications digital assets management system, which is now in the implementation phase. From the beginning of this process, the library took the opposite of the "If we build they will come" approach. This panel presentation focuses on how the OHSU Library built support for repository services by connecting with prospective users, and how the DAM/IR Task Force continues to involve users during implementation. Decisions around DAM implementation are not only informed by expertise in repositories management, digital library systems administration, and digital preservation, but also by stakeholder perspectives from across the OHSU campus. Panelists’ presentations emphasize the process, timeline, and methods for lobbying administration; advocating and communicating with IT departments; approaches to user-focused repository system selection, installation, and migration; and ensuring digital repository management best practices at the stakeholder level. Close

• 26. [Article] The meaning of falling water: Celilo Falls and the Dalles in historical literature

  Discusses the changing meaning attached to Celilo Falls and The Dalles and how these places were represented in the published literature from the 1807 edition of Lewis and Clark Expedition sergeant Patrick ...

  Citation × Citation Citation Abstract Copy Title: The meaning of falling water: Celilo Falls and the Dalles in historical literature Author: Lang, William L. Year: 2007 Discusses the changing meaning attached to Celilo Falls and The Dalles and how these places were represented in the published literature from the 1807 edition of Lewis and Clark Expedition sergeant Patrick Gass's journal through the 2006 publication of Joseph C. Dupris, Kathleen S. Hill, and William Rodgers, Jr.'s 'The Si'lailo Way: Indians, Salmon, and Law on the Columbia River.' The article examines many topics, including early Euro-American incursions, the changes wrought by the Native American land cessions in 1855, and the development of hydroelectric power on the Columbia River, particularly The Dalles Dam, completed in 1957, which destroyed ancient Native American fishing grounds. Title: The meaning of falling water: Celilo Falls and the Dalles in historical literature Author: Lang, William L. Year: 2007 Discusses the changing meaning attached to Celilo Falls and The Dalles and how these places were represented in the published literature from the 1807 edition of Lewis and Clark Expedition sergeant Patrick Gass's journal through the 2006 publication of Joseph C. Dupris, Kathleen S. Hill, and William Rodgers, Jr.'s 'The Si'lailo Way: Indians, Salmon, and Law on the Columbia River.' The article examines many topics, including early Euro-American incursions, the changes wrought by the Native American land cessions in 1855, and the development of hydroelectric power on the Columbia River, particularly The Dalles Dam, completed in 1957, which destroyed ancient Native American fishing grounds. Close

• 27. [Article] Pend Oreille River, Box Canyon Model: Model Development and Calibration

  The purpose of this study was to improve the existing Version 3.0 application of CE-QUAL-W2 of the Pend Oreille River between Box Canyon Dam and Albeni Falls Dam by performing the tasks outlined above. ...

  Citation × Citation Citation Abstract Copy Title: Pend Oreille River, Box Canyon Model: Model Development and Calibration Author: Annear, Robert Leslie, Berger, Chris, Wells, Scott A. Year: 2006 The purpose of this study was to improve the existing Version 3.0 application of CE-QUAL-W2 of the Pend Oreille River between Box Canyon Dam and Albeni Falls Dam by performing the tasks outlined above. In addition, the use of field data from 2004 as an additional calibration year would improve the confidence in the model’s predictive ability for temperature. The model simulations were run from January 1st to December 31st in each of the 3 years of model simulation: 1997, 1998 and 2004. The model chosen for development is CE-QUAL-W2 Version 3.5 (Cole and Wells, 2006). This is a twodimensional unsteady hydrodynamic and water quality model that includes typical eutrophication parameters (algae, nutrients, temperature, organic matter, dissolved oxygen, pH). The PSU-WQRG is a center for development of this modeling tool (see http://www.cee.pdx.edu/w2). Title: Pend Oreille River, Box Canyon Model: Model Development and Calibration Author: Annear, Robert Leslie, Berger, Chris, Wells, Scott A. Year: 2006 The purpose of this study was to improve the existing Version 3.0 application of CE-QUAL-W2 of the Pend Oreille River between Box Canyon Dam and Albeni Falls Dam by performing the tasks outlined above. In addition, the use of field data from 2004 as an additional calibration year would improve the confidence in the model’s predictive ability for temperature. The model simulations were run from January 1st to December 31st in each of the 3 years of model simulation: 1997, 1998 and 2004. The model chosen for development is CE-QUAL-W2 Version 3.5 (Cole and Wells, 2006). This is a twodimensional unsteady hydrodynamic and water quality model that includes typical eutrophication parameters (algae, nutrients, temperature, organic matter, dissolved oxygen, pH). The PSU-WQRG is a center for development of this modeling tool (see http://www.cee.pdx.edu/w2). Close

• 28. [Article] Pend Oreille River Model: Model Scenario Simulations

  The Idaho Department of Environmental Quality is interested in developing a temperature and water quality Total Maximum Daily Load (TMDL) allocation for the Pend Oreille River between the Long Bridge near ...

  Citation × Citation Citation Abstract Copy Title: Pend Oreille River Model: Model Scenario Simulations Author: Annear, Robert Leslie, Berger, Chris, Wells, Scott A. Year: 2007 The Idaho Department of Environmental Quality is interested in developing a temperature and water quality Total Maximum Daily Load (TMDL) allocation for the Pend Oreille River between the Long Bridge near the historical Lake Pend Oreille outlet and Albeni Falls Dam (U.S. Army Corps of Engineer’s reservoir) as shown in Figure 1. This management scenario report is an update of a prior report. The management scenarios had to be rerun because of a modeling error made with the outflows rate of Albeni Falls Dam. The new calibration error statistics were compared with the old statistics in Appendix B: Model Calibration Statistics. The model error for vertical profiles was slightly improved while the error for continuous temperature data was approximately the same. Title: Pend Oreille River Model: Model Scenario Simulations Author: Annear, Robert Leslie, Berger, Chris, Wells, Scott A. Year: 2007 The Idaho Department of Environmental Quality is interested in developing a temperature and water quality Total Maximum Daily Load (TMDL) allocation for the Pend Oreille River between the Long Bridge near the historical Lake Pend Oreille outlet and Albeni Falls Dam (U.S. Army Corps of Engineer’s reservoir) as shown in Figure 1. This management scenario report is an update of a prior report. The management scenarios had to be rerun because of a modeling error made with the outflows rate of Albeni Falls Dam. The new calibration error statistics were compared with the old statistics in Appendix B: Model Calibration Statistics. The model error for vertical profiles was slightly improved while the error for continuous temperature data was approximately the same. Close

• 29. [Article] Fluttering fountains: Simplified models

  Fluttering oscillations are sometimes observed in the falling sheets of water associated with dams and waterfall fountains, and a theoretical simulation of this phenomenon was recently reported. In this ...

  Citation × Citation Citation Abstract Copy Title: Fluttering fountains: Simplified models Author: Casperson, Lee W. Year: 1993 Fluttering oscillations are sometimes observed in the falling sheets of water associated with dams and waterfall fountains, and a theoretical simulation of this phenomenon was recently reported. In this study approximate analytical solutions of the previous model are described and compared with the experimental and theoretical observations. Title: Fluttering fountains: Simplified models Author: Casperson, Lee W. Year: 1993 Fluttering oscillations are sometimes observed in the falling sheets of water associated with dams and waterfall fountains, and a theoretical simulation of this phenomenon was recently reported. In this study approximate analytical solutions of the previous model are described and compared with the experimental and theoretical observations. Close

• 30. [Article] Excavation Rate and Work Force Planning

  A contractor is dealing with the construction of two dams 515 miles apart. The objective of the firm is to minimize total excavation cost for the two projects, the transportation cost of machinery, and ...

  Citation × Citation Citation Abstract Copy Title: Excavation Rate and Work Force Planning Author: Iyigun, M. Guven, Tor, Abdulmennan Year: 1989 A contractor is dealing with the construction of two dams 515 miles apart. The objective of the firm is to minimize total excavation cost for the two projects, the transportation cost of machinery, and losses due to shut-down of machinery during transportation. Title: Excavation Rate and Work Force Planning Author: Iyigun, M. Guven, Tor, Abdulmennan Year: 1989 A contractor is dealing with the construction of two dams 515 miles apart. The objective of the firm is to minimize total excavation cost for the two projects, the transportation cost of machinery, and losses due to shut-down of machinery during transportation. Close