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Empirical Data on Longitudinal Dispersion

Description: From introduction: The purpose of this report is to assemble empirical data on longitudinal dispersion for a variety of natural channels as a first step in the critical examination of current models used to describe longitudinal dispersion.
Date: August 1974
Creator: Nordin, Carl F. & Sabol, George V.
Partner: UNT Libraries Government Documents Department

American Heritage Rivers

Description: This report discusses the American Heritage Rivers Initiative, implemented in 1998 by President Bill Clinton. The Initiative designed 14 rivers as "American Heritage Rivers," and declared that each "will receive help over the next five years tapping federal resources to carry out their plans for revitalizing their rivers and riverfronts." This report also discusses the reactions from both supporters and detractors of the initiative, and related legislation and appropriations.
Date: August 3, 1998
Creator: Zinn, Jeffrey A. & Cody, Betsy A.
Partner: UNT Libraries Government Documents Department

[Ireland]

Description: Photograph of a street in Ireland. In the foreground, a body of water enclosed by a stone wall is visible. A street lined with cars and buildings is visible behind the stone wall.
Date: 1970
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

Graphical Method for Estimating Occurence and Duration of a Critical Low Flow in the Sacramento River at Freeport, California

Description: Abstract: Sacramento County expected to begin operation of the Sacramento Regional Wastewater Treatment Plant in 1982. The California State Water Resources Control Board has ruled that the plant will not be allowed to release effluent into the Sacramento River when flow in the river is 4,000 cubic feet per second or less. Depending on tide condition, flows less than 4,000 cubic feet per second may occur either once or twice during each 24-hour 50-minute tide cycle when the daily mean flow is less than about 12,000 cubic feet per second. Daily mean flows less than 12,000 cubic feet per second occur about 28 percent of the time. Riverflow at the plant outfall is monitored by an acoustic streamflow measuring system. Regulation of effluent released from the plant will normally be based on real-time flow data computed by the acoustic system. A graphical method for determining the occurrence and duration of flows of 4,000 cubic feet per second and less was developed as a backup system to be used if a temporary failure in the acoustic system occurs.
Date: May 1983
Creator: Harmon, Jerry G.
Partner: UNT Libraries Government Documents Department

Identification and Classification of Perennial Streams of Arkansas

Description: From introduction: The primary purpose of this study was to identify perennial streams. The secondary purpose was to classify them by flow. This information can be useful for planning and designing water supplies, analyzing environmental and economic impacts of various projects, water-quality modeling, and the determination of optimum and maintenance flows for a variety of instream uses.
Date: 1983
Creator: Hunrichs, R. A.
Partner: UNT Libraries Government Documents Department

A Method for Estimating Ground-Water Return Flow to the Lower Colorado River in the Yuma Area, Arizona and California

Description: Purpose and scope: The purpose of this study was to develop a method for estimating the amount of subsurface return flow to the Colorado River in the Yuma area. This report presents a method that permits an approximate accounting of ground-water return flow from each side of the Colorado River in Yuma reach. The method presented in this report was developed specifically for application in the Yuma area. The validity of the assumptions inherent in the method was evaluated on the basis of the local hydrologic system. The applicability of the method to other hydrologic systems is not addressed in this report.
Date: December 1983
Creator: Loeltz, O. J. & Leake, S. A.
Partner: UNT Libraries Government Documents Department

Bow River

Description: Photograph of the Bow River in Alberta, Canada. There are hills rising up on the left side of the image and trees on both sides of the river.
Date: 1972
Creator: Zichner, Mildred Schaeffer
Partner: UNT Libraries Special Collections

Stream Catalog of Eastern Section of Ketchikan Management District of Southeastern Alaska

Description: From abstract: This report contains information about part of Southeastern Alaska salmon streams is cataloged from the voluminous records of the Fisheries Research Institute of the University of Washington, U.S. Fish and Wildlife Service, Alaska Salmon Industry, and Alaska Department of Fish and Game, and other agencies.
Date: April 1959
Creator: Martin, John Wilson
Partner: UNT Libraries Government Documents Department

[Apartments]

Description: Photograph of apartment houses along the Onar River in Gerona, Spain. The river is visible in the foreground. The apartments rise directly out of the opposing river bank.
Date: unknown
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

[Stream]

Description: Photograph of a stream in Ireland. In the foreground, the stream is visible with grass and trees on both banks. A large hill is visible in the right background.
Date: 1970
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

Radioactivity Transport in Water: the Dispersion of Radionuclides in Open Channel Flow

Description: From introduction: It is the purpose of this study to present field measurements of dispersion in a river and a canal, whose characteristics are unlike streams in which similar work has been done. The Colorado River and the Pierce Canal were selected for testing.
Date: June 1, 1963
Creator: Patterson, C. C. & Gloyna, Earnest F.
Partner: UNT Libraries Government Documents Department

An Integrated Hydrologic Bayesian Multi-Model Combination Framework: Confronting Input, parameter and model structural uncertainty in Hydrologic Prediction

Description: This paper presents a new technique--Integrated Bayesian Uncertainty Estimator (IBUNE) to account for the major uncertainties of hydrologic rainfall-runoff predictions explicitly. The uncertainties from the input (forcing) data--mainly the precipitation observations and from the model parameters are reduced through a Monte Carlo Markov Chain (MCMC) scheme named Shuffled Complex Evolution Metropolis (SCEM) algorithm which has been extended to include a precipitation error model. Afterwards, the Bayesian Model Averaging (BMA) scheme is employed to further improve the prediction skill and uncertainty estimation using multiple model output. A series of case studies using three rainfall-runoff models to predict the streamflow in the Leaf River basin, Mississippi are used to examine the necessity and usefulness of this technique. The results suggests that ignoring either input forcings error or model structural uncertainty will lead to unrealistic model simulations and their associated uncertainty bounds which does not consistently capture and represent the real-world behavior of the watershed.
Date: May 5, 2006
Creator: Ajami, N K; Duan, Q & Sorooshian, S
Partner: UNT Libraries Government Documents Department

Annual Report of the Integrated Status and Effectiveness Monitoring Program: Fiscal Year 2008

Description: This document was created as an annual report detailing the accomplishments of the Integrated Status and Effectiveness Monitoring Program (ISEMP) in the Upper Columbia Basin in fiscal year 2008. The report consists of sub-chapters that reflect the various components of the program. Chapter 1 presents a report on programmatic coordination and accomplishments, and Chapters 2 through 4 provide a review of how ISEMP has progressed during the 2008 fiscal year in each of the pilot project subbasins: the John Day (Chapter 2), Wenatchee/Entiat (Chapter 3) and Salmon River (Chapter 4). Chapter 5 presents a report on the data management accomplishments in 2008.
Date: July 20, 2009
Creator: Terraqua, Inc. (Wauconda, WA)
Partner: UNT Libraries Government Documents Department

Integrated Status and Effectiveness Monitoring Program - Entiat River Rotary Screw Traps,Snorkel Surveys, and Steelhead Redd Surveys, 2008.

Description: The USFWS Mid-Columbia River Fishery Resource Office (MCRFRO) operated two rotary screw traps on the Entiat River as part of the Integrated Status and Effectiveness Monitoring Program from March through November of 2008. Along with the smolt traps, juvenile emigrants were also captured at remote locations throughout the Entiat watershed and its major tributary, the Mad River. A total of 16,782 wild salmonids were PIT tagged during the study period. Of this, 3,961(23.6%) were wild Oncorhynchus mykiss, 6,987 (41.6%) were wild spring run O. tshawytscha, and 5,591 (33.3%) were identified as wild O. tshawytscha of unknown run. Rotary screw trap efficiencies averaged 40.3% at the upper (Rkm 11.0) trap and 7.8% for the lower (Rkm 2.0) trap. These efficiencies were pooled for emigrant O. tshawytscha and O. mykiss. The MCRFRO conducted effectiveness monitoring snorkel surveys at 24 sites during the winter period and 30 sites during the summer and fall periods of 2008 as part of the Integrated Status and Effectiveness Monitoring Program in the Entiat River. The 2008 steelhead spawning grounds surveys were conducted weekly in the main Entiat River from rkm 1.1 to 44.2. A total of 222 steelhead redds were identified over the period from February 28 to June 16 2008 with April being the peak spawning month. Approximately 80% of the steelhead redds were located downstream of the rkm 26.
Date: February 17, 2009
Creator: Nelle, R.D.; Desgroseiller, Tom & Cotter, Michael (U.S. Fish and Wildlife Service)
Partner: UNT Libraries Government Documents Department

Integrated Status and Effectiveness Monitoring Program - Entiat River Rotary Screw Traps, Snorkel Surveys, and Steelhead Redd Surveys, 2008-2009.

Description: The USFWS Mid-Columbia River Fishery Resource Office (MCRFRO) operated two rotary screw traps on the Entiat River as part of the Integrated Status and Effectiveness Monitoring Program from March through November of 2008. Along with the smolt traps, juvenile emigrants were also captured at remote locations throughout the Entiat watershed and its major tributary, the Mad River. A total of 16,782 wild salmonids were PIT tagged during the study period. Of this, 3,961(23.6%) were wild Oncorhynchus mykiss, 6,987 (41.6%) were wild spring run O. tshawytscha, and 5,591 (33.3%) were identified as wild O. tshawytscha of unknown run. Rotary screw trap efficiencies averaged 40.3% at the upper (Rkm 11.0) trap and 7.8% for the lower (Rkm 2.0) trap. These efficiencies were pooled for emigrant O. tshawytscha and O. mykiss. The MCRFRO conducted effectiveness monitoring snorkel surveys at 24 sites during the winter period and 30 sites during the summer and fall periods of 2008 as part of the Integrated Status and Effectiveness Monitoring Program in the Entiat River. The 2008 steelhead spawning grounds surveys were conducted weekly in the main Entiat River from rkm 1.1 to 44.2. A total of 222 steelhead redds were identified over the period from February 28 to June 16 2008 with April being the peak spawning month. Approximately 80% of the steelhead redds were located downstream of the rkm 26.
Date: April 14, 2009
Creator: Nelle, R.D.; Desgroseillier, Tom & Cotter, Michael
Partner: UNT Libraries Government Documents Department

U.S.-Mexican Water Sharing: Background and Recent Developments

Description: This report describes U.S.-Mexican water sharing of the Colorado and Rio Grande rivers pursuant to binational agreements. The International Boundary and Water Commission (IBWC) is charged with addressing issues that arise during application of binational water treaties.
Date: March 2, 2017
Creator: Carter, Nicole T.; Mulligan, Stephen P. & Ribando Seelke, Clare
Partner: UNT Libraries Government Documents Department

[Children Swimming (Skinny-Dipping)]

Description: Photograph of four boys swimming in a river, taken from above. Trees and bushes line the river shores, and a tree branch stretches across the top part of the photograph. This image is mounted above an untitled, handwritten poem by Joe Clark. Photo by: Joe Clark, HBSS. Signed by: Joe Clark, HBSS
Date: 19uu
Creator: Clark, Joe
Partner: UNT Libraries Special Collections