Engineering Commons^™

Grid Independence Studies Of Eddy-Resolving Models At The Scale Of A River Reach Along A Transect In Marble Canyon Of The Colorado River, Arizona, Rosa Elena España Urresty

Open Access Theses & Dissertations

This study presented a novel approach for evaluating the impact of changes in spatial resolution on field-scale models to identify turbulent flow patterns in hydraulic features in canyon-bound rivers. The methodological framework incorporated seven different computational domain resolutions to analyze the sensitivity of field-scale models to spatial resolution changes by employing techniques such as turbulent kinetic energy spectrum, spatiotemporal analysis of eddy structures, divergent Kullback-Leibler (KL) divergence, Nash-Sutcliffe (NS) model efficiency coefficient, wavelet power spectrum, and GCI calculation. Statistical and physical-based skill metrics are employed to quantifying information loss to evaluate a set of domain resolutions. Grid independence studies have …

Identification, Mapping, Analysis, And Dating Of Composite Mega Landslides In The Colorado Plateau, Conor Maris Watkins

Doctoral Dissertations

"This research consists of three articles focusing on landslide complexes within the Grand Canyon region of the Colorado Plateau. This is a vast and remote region of rugged topography. The landslide complexes in this study are greater than 10 million cubic meters in volume. The slides are located within different areas of the region and consist of differing geology but share multiple commonalities. Stratigraphic and structural controls tend to dictate where the slides occur. All of the landslides occur where carbonates and/or sandstones overlie over consolidated shales. The shales are susceptible to creep and strain softening where lateral confinement has …

Bugs Buy Steady Releases From Hydropower Producers To Encourage More Synergistic Reservoir Management, Moazzam Ali Rind

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Hydropower generated from dams has significant economic value, however, that value is achieved at the cost of native ecosystem devastation. Here, we have estimated loss in hydropower revenue due to inclusion of the steady low flow days –Bug Flow Experiments. We developed a linear optimization model and constraint method that restrict the number of steady low flow days while maximizes the hydropower revenue generation. The results suggested that increase in release volume will benefit both the objectives (win-win scenario), energy price differential between on-and off-peak periods controls the position and shape of tradeoff curves, and offset release does not have …

Highly Variable Rainfall-Runoff Patterns Across Burned Mountainous Watersheds In The Colorado River Headwaters, Haley Anne Canham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wildfires can contribute to enhanced flooding, erosion, debris flows, sediment transport, and water quality changes that impact downstream infrastructure, water users, and aquatic habitat. With increasing wildfire risk in the western U.S. due to a changing climate, understanding post-wildfire rainfall-runoff patterns and controls is critical for continued water resources security. To improve understanding of post-wildfire rainfall-runoff patterns and controls, we developed a transparent, repeatable analysis framework to collect precipitation and streamflow data, identify paired rainfall-runoff events, and analyze these events to evaluate post-wildfire rainfall-runoff patterns and controls. To automate the rainfall-runoff event identification, the Rainfall-Runoff Event Detection and Identification (RREDI) …

A New Look At Landslides Of The Vermilion And Echo Cliffs, Northern Arizona, Conor M. Watkins, J. David Rogers

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The Vermilion and Echo Cliffs form a nearly continuous escarpment more than 160 km long within the Colorado Plateau physiographic province of North America. The cliffs overlie the Marble Platform in northern Arizona and are located along the Colorado River, just upstream of the Grand Canyon. Large rotational block landslides mantle the erosional escarpment along most of its extent. Although these landslides have been noted for over 100 years, their likely origin has never been explained. Landslide failure surfaces appear to be influenced by the Petrified Forest Member of the Triassic Chinle Formation, a shale layer containing smectite clay weathered …

Advances In Process Understanding And Methods To Support River Temperature Modeling In Large Regulated Systems, Bryce A. Mihalevich

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

River temperatures play a key role in determining the suitability of habitat for aquatic ecosystems. While thermal regimes are influenced by many factors, flow and temperature patterns in large rivers are often shaped by water development. As such, water management associated with large reservoirs and diversions have also altered aquatic ecosystems. As climate change introduces new climate and hydrologic patterns, the decisions water managers make to address changes in runoff may further impact aquatic ecosystems. This calls for robust modeling tools that can predict river and reservoir temperature responses to water management decisions over large regions. However, highly variable topography …

Lessons From Real-Time, Online Collaborative Modeling To Discuss More Adaptive Reservoir Operations, David E. Rosenberg

Civil and Environmental Engineering Faculty Publications

This work had the purpose to model and discuss in real-time more adaptive Colorado River reservoir operations with manager and experts. I created real-time, online collaborative modeling environments by using an interactive web spreadsheet (Google Sheet) during video conference sessions. 26 Colorado River managers and experts participated. Within each session, up to 6 people from the same stakeholder group simultaneously consumed, saved, and traded water in six basin water accounts, protected reservoirs, and sustained endangered, native fish of the Grand Canyon. The collaboration differed from prior studies that excluded stakeholders, extracted data from participants, had a lead modeler or facilitation …

Video Conversations - The Future Of The Colorado River, John C. Schmidt, David E. Rosenberg

All ECSTATIC Materials

This video series explores key Colorado River management issues with key managers across the basin. Video discussions in the table on the next page are presented in the order they were recorded. Topics include river ecosystems, California, Upper Basin, Tribal, and Federal perspectives, as well as future hydrology and climate. Each video runs for 60 to 90 minutes. Speakers start by describing how they got to the place they are professionally. There are prepared remarks and questions and answers from participants who attended at the time the video was recorded. Links to suggested readings are provided. Click the VIDEO url …

Mapping Annual Riparian Water Use Based On The Single-Satellite-Scene Approach, Kul Khand, Saleh Taghvaeian, Leila Hassan-Esfahani

Civil and Environmental Engineering Faculty Publications

The accurate estimation of water use by groundwater-dependent riparian vegetation is of great importance to sustainable water resource management in arid/semi-arid regions. Remote sensing methods can be effective in this regard, as they capture the inherent spatial variability in riparian ecosystems. The single-satellite-scene (SSS) method uses a derivation of the Normalized Difference Vegetation Index (NDVI) from a single space-borne image during the peak growing season and minimal ground-based meteorological data to estimate the annual riparian water use on a distributed basis. This method was applied to a riparian ecosystem dominated by tamarisk along a section of the lower Colorado River …

Slides: Moffat Collection System Project, Travis Bray

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Travis Bray, Project Manager, Moffat Collection System Project, Denver Water

45 slides

Slides: Who Should Be At The Table, And What Should They Be Talking About?, Robert W. Adler

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

Presenter: Robert W. Adler, James I. Farr Chair in Law, University of Utah, S.J. Quinney College of Law

9 slides

Slides: Risk Management Strategies Of The Upper Basin: Addressing Potential Shortages, Eric Kuhn

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

Presenter: Eric Kuhn, Colorado River Water Conservation District

15 slides

Slides: Smart Fallowing: New Strategies In Ag Forbearance, Bonnie Colby

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

Presenter: Dr. Bonnie Colby, Department of Agriculture & Resource Economics, University of Arizona

34 slides

Slides: Thinking The Unthinkable, Lawrence J. Macdonnell

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

Presenter: Lawrence J. MacDonnell, University of Wyoming College of Law

7 slides

Slides: Long-Term Augmentation Of The Water Supply Of The Colorado River System, Les Lampe

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

Presenter: Les Lampe, Colorado River Water Consultants, Las Vegas, Nevada

29 slides

Filling The Gap: Commonsense Solutions For Meeting Front Range Water Needs: Executive Summary, Western Resource Advocates, Trout Unlimited, Colorado Environmental Coalition (U.S.)

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

8 pages.

"February 2011"

Presented by Drew Beckwith, Water Policy Manager, Western Resource Advocates, on June 10th at Clyde O. Martz Summer Conference 2011, Navigating the Future of the Colorado River Basin

Full report available at: http://www.westernresourceadvocates.org/gap

Slides: Water Banks: Voluntary And Flexible Water Supplies For The Colorado River's Uncertain Future, Robert Wigington

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

Presenter: Robert Wigington, The Nature Conservancy

7 slides

Materials For Presentation: Water Banks: Voluntary And Flexible Water Supplies For The Colorado River's Uncertain Future [Outline], Robert Wigington

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

4 pages.

"Robert Wigington, The Nature Conservancy"

Materials For Presentation: The Disappearing Colorado River, Lawrence J. Macdonnell

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

7 pages.

"Western Economics Forum, Fall 2010"

Fact Sheet: Study Of Long-Term Augmentation Options For The Water Supply Of The Colorado System, Black & Veatch, Ch2m Hill

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

1 page.

"March 2008"

Material submitted by Les Lampe, Colorado River Water Consultants, for "Augmentation Options" program, Session 3: Mapping a New Course, Panel F: Some Policy Options and Solutions.

Colorado River Water Consultants is a project-specific partnership of engineering firms Black & Veatch and CH2MHill.

Slides: Law Of Colorado River: Where We Are, Where We Are Going, Steven M. Fitten

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

Presenter: Steven M. Fitten, Chief Counsel, International Boundary and Water Commission (IBWC)

14 slides

Report Surveys Colorado River Basin Leaders: Collaborative Approaches To Dwindling Supplies Are Highlighted, Sarah Bates, University Of Montana Missoula. Center For Natural Resources And Environmental Policy

Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)

4 pages.

Press release "April 14, 2011"

"Executive Summary April 2011" of report, Thinking Like a River Basin: Leaders' Perspectives on Options and Opportunities in Colorado River Management

Full report available at:

http://www.carpediemwest.org/wp-content/uploads/Thinking_Like_A_River_Basin_8-20-13.pdf

Agenda: Us-Mexico Negotiations On Improved Colorado River Management: An Update, University Of Colorado Boulder. Natural Resources Law Center, Western Water Policy Program, Colorado Water Conservation Board

US-Mexico Negotiations on Improved Colorado River Management: An Update (February 19)

The United States and Mexico are currently negotiating an international accord on a variety of Colorado River water matters, including the prospects for new water projects, conservation efforts, and operational improvements. Participants are invited to hear an update on these efforts from individuals directly involved in the negotiations, including Mario López Pérez, Engineering and Technical Standards Manager in the National Water Commission of México, who is responsible for binational water issues with the USA, Guatemala and Belize.

Colorado River Water: Mexico's Perspective On The Ongoing Negotiations, Mario López Pérez

US-Mexico Negotiations on Improved Colorado River Management: An Update (February 19)

Presenter: Mario López, Engineering and Technical Standards Manager, National Water Commission of México

53 slides

Slides: Oil Shale Water Needs, State Water Planning And The Colorado River Compact, Daniel R. Birch

The Promise and Peril of Oil Shale Development (February 5)

Presenter: Daniel R. Birch, Deputy General Manager & Chief Engineer, Colorado River District

17 slides

Slides: Indian Water Rights, Robert T. Anderson

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Robert T. Anderson, Native American Law Center, University of Washington Law School

19 slides

Slides: Status Of Southern Nevada Water Authority (Snwa): Third Intake Into Lake Mead And Groundwater Project, Kay Brothers

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Kay Brothers, Southern Nevada Water Authority (SNWA), Las Vegas, NV

37 slides

Slides: Transboundary Solutions: A Water Trust, Policy, And Environmental Flows For The Colorado River Delta, Jennifer Pitt

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Jennifer Pitt, Environmental Defense Fund, Boulder, CO

26 slides

Slides: Unquenchable, Robert Glennon

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Robert Glennon, Morris K. Udall Professor of Law and Public Policy, James E. Rogers College of Law, University of Arizona

56 slides

Slides: Finding Flows: Fish Still Need Water Everyday, Melinda Kassen

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Melinda Kassen, Director of the Western Water Project, Trout Unlimited

12 slides