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Articles 61 - 90 of 109
Full-Text Articles in Hydrology
June 2018 Water Blog Newsletter Now Available, Utah Water Research Laboratory
June 2018 Water Blog Newsletter Now Available, Utah Water Research Laboratory
News
There's no doubt about it; good data is essential to good water management. In this issue of the Water bLog, we highlight research at the UWRL that focuses on meeting Utah's need for ongoing long-term data to inform future decisions about water resources management.
Calibration Parameter Selection And Watershed Hydrology Model Evaluation In Time And Frequency Domains, Karthik Kumarasamy, Patrick Belmont
Calibration Parameter Selection And Watershed Hydrology Model Evaluation In Time And Frequency Domains, Karthik Kumarasamy, Patrick Belmont
Watershed Sciences Faculty Publications
Watershed scale models simulating hydrological and water quality processes have advanced rapidly in sophistication, process representation, flexibility in model structure, and input data. With calibration being an inevitable step prior to any model application, there is need for a simple procedure to assess whether or not a parameter should be adjusted for calibration. We provide a rationale for a hierarchical selection of parameters to adjust during calibration and recommend that modelers progress from parameters that are most uncertain to parameters that are least uncertain, namely starting with pure calibration parameters, followed by derived parameters, and finally measured parameters. We show …
Uwrl Presented With An Institutional Recognition Award From Astm International, Utah Water Research Laboratory
Uwrl Presented With An Institutional Recognition Award From Astm International, Utah Water Research Laboratory
News
The UWRL recently received an Institutional Recognition Award from ASTM International for testing that led to improvements to ASTM's D6459 Test Method for Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Hillslopes from Rainfall-Induced Erosion.
Aggieair Joins 3rd Annual Aerospace Day, Jessica Griffiths
Aggieair Joins 3rd Annual Aerospace Day, Jessica Griffiths
News
On Thursday, AggieAir joined industry leaders and legislators to participate in the Utah Chapter-Aerospace State Association 3rd Annual Aerospace Day on Capitol Hill.
Adel Abdallah Receives Awwa Intermountain Section Diversity Award, Utah Water Research Laboratory
Adel Abdallah Receives Awwa Intermountain Section Diversity Award, Utah Water Research Laboratory
News
The American Water Works Association Intermountain Section has selected USU/UWRL graduate student Adel Abdallah to receive their 2018 Diversity Scholarship. This scholarship "was created to encourage education and training in the field of conservation, water quality, supply, resources, reuse and treatment among minority students" and is presented to one outstanding minority student pursuing education in one of these areas.
Monthly Paleostreamflow Reconstruction From Annual Tree-Ring Chronologies, James H. Stagge, David E. Rosenberg, R. J. Derose, Tammy M. Rittenour
Monthly Paleostreamflow Reconstruction From Annual Tree-Ring Chronologies, James H. Stagge, David E. Rosenberg, R. J. Derose, Tammy M. Rittenour
Publications
Paleoclimate reconstructions are increasingly used to characterize annual climate variability prior to the instrumental record, to improve estimates of climate extremes, and to provide a baseline for climate-change projections. To date, paleoclimate records have seen limited engineering use to estimate hydrologic risks because water systems models and managers usually require streamflow input at the monthly scale. This study explores the hypothesis that monthly streamflows can be adequately modeled by statistically decomposing annual flow reconstructions. To test this hypothesis, a multiple linear regression model for monthly streamflow reconstruction is presented that expands the set of predictors to include annual streamflow reconstructions, …
Usu And Aggieair Featured In Usda Agresearch Magazine, Jessica Griffiths
Usu And Aggieair Featured In Usda Agresearch Magazine, Jessica Griffiths
News
As part of Dr. Alfonso Torres-Rua precision agriculture research, AggieAir took to the skies over Gallo Vineyards in Barelli, CA to map the vineyards into ARS computer models. The analytical data, collected over three years and combined with other researchers, will help vineyards efficiently determine vine health and irrigation practices in varying soil and climate conditions.
Usda/Ars And Aggieair Research Featured In The December 2017 Issue Of Usda's Agresearch Magazine, Utah Water Research Laboratory
Usda/Ars And Aggieair Research Featured In The December 2017 Issue Of Usda's Agresearch Magazine, Utah Water Research Laboratory
News
The December 2017 issue of AgResearch magazine (USDA) featured ongoing precision agriculture research that incorporates AggieAir’s advanced scientific remote sensing technology and analytical products developed at the UWRL into ARS computer models. This research is providing the tools and data that will help California’s vineyards better evaluate vine health and manage irrigation water more efficiently across differing soils and climate conditions.
December 2017 Water Blog Newsletter Now Available, Utah Water Research Laboratory
December 2017 Water Blog Newsletter Now Available, Utah Water Research Laboratory
News
As water researchers, we challenge ourselves to see water-related issues from a fresh perspective in our quest to find new and better solutions. Often this means either taking a much closer look or backing off to view things in a broader frame of reference. In this issue, we look at projects on both ends of the spectrum, from the microscopic to the regional.
Longitudinal Thermal And Solute Dynamics In Regulated Rivers, Muhammad Rezaul Haider
Longitudinal Thermal And Solute Dynamics In Regulated Rivers, Muhammad Rezaul Haider
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Dam releases increase river stage and can reverse groundwater movement into and out of the river. As the flood, thermal, and solute waves travel downstream in a regulated river, the size of the waves is anticipated to be affected both by river processes and exchanges with near river groundwater. This study established a modeling framework to quantify the influences of the groundwater exchanges on the temperatures and solute concentration dynamics along regulated rivers. The wave properties, volume of exchanges, conservative solute mass exchanges, and heat energy exchanges were calculated as a function of time and distance downstream. Results show that …
Optimizing Barrier Removal To Restore Connectivity In Utah’S Weber Basin, Maggi Kraft
Optimizing Barrier Removal To Restore Connectivity In Utah’S Weber Basin, Maggi Kraft
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
River barriers, such as dams, culverts and diversions are important for water conveyance, but disrupt river ecosystems and hydrologic processes. River barrier removal is increasingly used to restore and improve river habitat and connectivity. Most past barrier removal projects prioritized individual barriers using score-and-rank techniques, neglecting the spatial structure and cumulative change from multiple barrier removals. Similarly, most water demand models satisfy human water uses or, only prioritize aquatic habitat, failing to include both human and environmental water use benefits. In this study, a dual objective optimization model identified in-stream barriers that impede quality-weighted aquatic habitat connectivity for Bonneville cutthroat …
Ncer Assistance Agreement Annual Progress Report For Grant #83582401 - Assessment Of Stormwater Harvesting Via Manage Aquifer Recharge (Mar) To Develop New Water Supplies In The Arid West: The Salt Lake Valley Example, Ryan Dupont, Joan E. Mclean, Richard C. Peralta, Sarah E. Null, Douglas B. Jackson-Smith
Ncer Assistance Agreement Annual Progress Report For Grant #83582401 - Assessment Of Stormwater Harvesting Via Manage Aquifer Recharge (Mar) To Develop New Water Supplies In The Arid West: The Salt Lake Valley Example, Ryan Dupont, Joan E. Mclean, Richard C. Peralta, Sarah E. Null, Douglas B. Jackson-Smith
Civil and Environmental Engineering Faculty Publications
The aims of the original proposed project remain the same, that is, to test the hypothesis that Managed Aquifer Recharge (MAR) for stormwater harvesting is a technically feasible, socially and environmentally acceptable, economically viable, and legally feasible option for developing new water supplies for arid Western urban ecosystems experiencing increasing population, and climate change pressures on existing water resources. The project is being carried out via three distinct but integrated components that include: 1) Monitoring of existing distributed MAR harvesting schemes involving a growing number of demonstration Green Infrastructure (GI) test sites; 2) Integrated stormwater/vadose zone/groundwater/ ecosystem services modeling; and …
Aggieair Joins The Oshkosh Aviation Festival, Aggieair
Aggieair Joins The Oshkosh Aviation Festival, Aggieair
News
EAA Oshkosh AirVenture 2017 is the largest airshow in the world, with over a half million people in attendance, over the span of a week. AggieAir pilot, Dan Robinson, joined the USU airfleet and hosted the AggieAir UAV booth. Dan was available to talk about the strong history of UAVs in academia and research and the future of AggieAir's research.
David Tarboton Awarded A Nsf Grant To Improve Hydrological Data Sharing, Utah Water Research Laboratory
David Tarboton Awarded A Nsf Grant To Improve Hydrological Data Sharing, Utah Water Research Laboratory
News
Dr. Tarboton will lead a team of hydrologists to improve HydroShare, a system designed to allow scientists to collaboratively work on and share hydrological research and data, using a $4 million grant awarded from the National Science Foundation.
Uwrl Welcomes Four New Faculty Members, Utah Water Research Laboratory
Uwrl Welcomes Four New Faculty Members, Utah Water Research Laboratory
News
In early 2017, the USU Department of Civil and Environmental Engineering and the Utah Water Research Laboratory announced that we were seeking “bright, creative and interdisciplinary researchers to lead and develop the next generation of resilient solutions to water problems, …creative and talented individuals that will become world leaders in water related research”—and we found them!
Herald Journal Article About Iutah Team Symposium, Utah Water Research Laboratory
Herald Journal Article About Iutah Team Symposium, Utah Water Research Laboratory
News
A team of researchers from USU and other Utah universities, government agencies, industry partners, and non-rofit organizations came together 5 years ago to establish iUTAH (Innovative Urban Transition and Aridregion Hydro-sustainability) as a way to strengthen science for Utah's water future. This 5-year interdisciplinary research and training program was funded by the National Science Foundation through July 2017. These researchers, including UWRL faculty members Jeff Horsburgh, Bethany Neilson, and David Rosenberg recently presented a symposium to present their progress and accomplishments over the course of this enormous undertaking.
Aggieair Begin The 2017 Flight Season, Aggieair
Aggieair Begin The 2017 Flight Season, Aggieair
News
The AggieAir team kicks off a busy 2017 in Sunny California by placing strategically placed targets across the Gallo Family vineyards. These targets are crucial to georectify UAV imagery.
David Rosenberg Received An Ewri Award For Best Associate Editor, Utah Water Research Laboratory
David Rosenberg Received An Ewri Award For Best Associate Editor, Utah Water Research Laboratory
News
David Rosenberg recently received the Best Associate Editor Award for the Journal of Water Resources Planning & Management. The award was presented at the 2017 EWRI Awards at the World Environmental & Water Resources Congress in Sacramento, CA, on May 22, 2017. The award is presented by the Environmental & Water Resources Institute (EWRI) of the American Society of Civil Engineers.
Asce Recently Featured An Article On Improving Flow From Irrigation Splitter Boxes, Utah Water Research Laboratory
Asce Recently Featured An Article On Improving Flow From Irrigation Splitter Boxes, Utah Water Research Laboratory
News
Irrigation splitter boxes are used in piped gravity-flow systems to divert water from the main supply line to local users, but when flow is high and turbulent, the split isn't uniform. In the paper, the authors show how to implement a solution they designed and tested successfully; this paper is available in ASCE's Journal of Irrigation and Drainage Engineering for free for a limited time, courtesy of ASCE Library.
Oroville Dam Scale Model At The Uwrl Helps Test Repair Plans Before Construction, Utah Water Research Laboratory
Oroville Dam Scale Model At The Uwrl Helps Test Repair Plans Before Construction, Utah Water Research Laboratory
News
Engineers at the Utah Water Research Laboratory at Utah State University have constructed a 1:50 scale model of the Orovill Dam spillway. The model initally featured the terrain conditions that were formed following the damaging flow events in February, and later tested the designs for the reconstruction plans. Lead engineers Dr. Michael Johnson and Dr. Zachary Sharp worked with a team of 15 engineers and technicians to construct the approximately 100-foot-long by 60-foot-wide model in just 40 days.
Randy Martin Joins Utah Air Quality Board, Utah Water Research Laboratory
Randy Martin Joins Utah Air Quality Board, Utah Water Research Laboratory
News
UWRL researcher and professor, Randy Martin, has been named to a four year term to the Utah Air Quality Board. Martin was chosen by Utah Gov. Gary Herbert to provide scientific insight and opinion on air quality and legislative policy.
Mac Mckee Named Engineering Faculty Researcher Of 2017, Utah Water Research Laboratory
Mac Mckee Named Engineering Faculty Researcher Of 2017, Utah Water Research Laboratory
News
UWRL Director, Mac McKee, was nominated as a Faculty Researcher of 2017 for the College of Engineering. McKee's research has taken him all over the world and has included work on flood control and planning in the Philippeans to water quality management in India. Currently Dr. McKee's research focuses on small unmanned aerial systems solve natural resource problems using remote sensing and data analysis.
Congratulations To 2017 Usu Engineering Graduates, Utah Water Research Laboratory
Congratulations To 2017 Usu Engineering Graduates, Utah Water Research Laboratory
News
Congratuations to all 2017 Engineering graduates! The UWRL is proud of our talented and diverse students and wish them all the best in their futures.
A Stochastic Model For Water-Vegetation Systems And The Effect Of Decreasing Precipitation On Semi-Arid Environments, Shannon A. Dixon
A Stochastic Model For Water-Vegetation Systems And The Effect Of Decreasing Precipitation On Semi-Arid Environments, Shannon A. Dixon
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Current climate change trends are affecting the magnitude and recurrence of extreme weather events. In particular, several semi-arid regions around the planet are confronting more intense and prolonged lack of precipitation, slowly transforming these regions into deserts. Many mathematical models have been developed for purposes of analyzing vegetation-water interactions, particularly in semi-arid landscapes. Most models are based on the average behavior of the system as a whole, and how it is influenced by external changes. These models may be termed "macro-scale" models. Other models have concerned themselves with the interactions between individuals, in this case the interactions between individual plants …
Uwrl Students Sweep Awwa 2017 Scholarships, Utah Water Research Laboratory
Uwrl Students Sweep Awwa 2017 Scholarships, Utah Water Research Laboratory
News
USU Civil Engineering and UWRL Students win scholarships from American Water Works Association. The scholarships support students studying water quality, supply, and treatment in the West. The scholarship is awarded to both graduate and undergraduate students, with USU taking them all this year.
Student, Mahyar Aboutalebi, Wins J. Paul Riley Awra Paper Competition, Utah Water Research Laboratory
Student, Mahyar Aboutalebi, Wins J. Paul Riley Awra Paper Competition, Utah Water Research Laboratory
News
Mahyar Aboutalebi was selected as a winner and scholarship recipient in the J. Paul Riley AWRA Utah Section Student Paper Competition. The paper, Satellite-based Prediction of Internal Migratory Movement under the Lack of Sufficient water for the Entire U.S.” will go on to compete in the oral presentation contest during the 2017 Spring Runoff Conference.
2017 Spring Runoff Conference, Utah Water Research Laboratory
2017 Spring Runoff Conference, Utah Water Research Laboratory
News
The annual USU Spring Runoff Conference will be held on March 28 – March 29. Students, faculty, and professionals are invited to attend and participate in the presentations and poster sessions.
Aggieair Researchers Unveil The Latest Uav Platform, Utah Water Research Laboratory
Aggieair Researchers Unveil The Latest Uav Platform, Utah Water Research Laboratory
News
The AggieAir research team unveiled the new BluJay line of unmanned aerial vehicles (UAV) during the GRAPEX conference. The new UAV, nicknamed Darkhorse, is outfitted with additional scientific sensors and beyond line of sight capacity. Darkhorse is capable of flying over 200 miles and remain airborne for over 3 hours on a single battery charge.
Uwrl Professor Provides Perspective To National Media On Threats To Oroville Dam Spillway, Utah Water Research Laboratory
Uwrl Professor Provides Perspective To National Media On Threats To Oroville Dam Spillway, Utah Water Research Laboratory
News
The UWRL’s Dr. Blake Tullis is a leading authority on spillway design. When extreme weather and resulting excessive water flows threatened the integrity of California’s Oroville Dam’s spillways this week, national media reporters from CNN, the New York Times, and the Wall Street Journal reached out to him to gain a clearer explanation of the situation.
Uwrl Researchers Develop Techniques To Identify Arsenic Contamination In Drinking Water, Utah Water Research Laboratory
Uwrl Researchers Develop Techniques To Identify Arsenic Contamination In Drinking Water, Utah Water Research Laboratory
News
Environmental engineer researchers at the UWRL have developed a new genetic tool in identifying the bacteria that releases contaminating arsenic in water supplies. Arsenic contaminates drinking water for millions of people worldwide and this microbial ecosystem research is the first step in understanding and reducing arsenic contamination in groundwater The team published their findings in the Applied and Environmental Microbiology journal on February 1.