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Articles 1471 - 1500 of 59499
Full-Text Articles in Entire DC Network
The Reform Of Prior Appropriation And The Fate Of Great Salt Lake, Christopher L. Lant, Rocky Seeley, Beth Parker, Andrew Follett
The Reform Of Prior Appropriation And The Fate Of Great Salt Lake, Christopher L. Lant, Rocky Seeley, Beth Parker, Andrew Follett
Spring Runoff Conference
Legal Issues Raised by the Decline of Great Salt Lake
- Violations of Clean Air Act from dust threaten federal intervention
- Petition to list Wilson’s Phalarope as an endangered species
Nutrient Inputs, Crop Removal, And Residual Soil Nitrogen Under Automated Surge Irrigation In Northen Utah, Ngoni Mufute
Nutrient Inputs, Crop Removal, And Residual Soil Nitrogen Under Automated Surge Irrigation In Northen Utah, Ngoni Mufute
Spring Runoff Conference
Introduction
• Increasing pressure on already water scarce resources due to
- Climate Change and or variability
• Increasing demand and competition for water. E.g. due to -urban expansion
• Environmental concerns (Especially concerning the Great Salt Lake (GSL)-
• the shrinking of water levels in the GSL,
• increasing pollution levels in the GSL and
• the impact of these issues on industry,
• dust from the drying lakebed,
• increasing threat to both aquatic life and land animals
The Physical, Legal, And Modeling Infrastructure For Water Resource Management Has Reached A Tipping Point, Paul Brooks
The Physical, Legal, And Modeling Infrastructure For Water Resource Management Has Reached A Tipping Point, Paul Brooks
Spring Runoff Conference
Addressing these challenges requires improved predictions of water supply
Supporting The Great Salt Lake: M&I Water Conservation Opportunities, Easton Hopkins
Supporting The Great Salt Lake: M&I Water Conservation Opportunities, Easton Hopkins
Spring Runoff Conference
Analysis of historical M&I water use, depletion, and conservation strategies to reduce anthropogenic impact on Great Salt Lake (GSL) while supporting M&I water needs.
Impacts Of Biochar And Fe/Zn-Doped Biochar On The Degradation And Transformation Of Pfas In Wastewater Biosolids Compost, Chase Fry, R. Ryan Dupont, Joan Mclean
Impacts Of Biochar And Fe/Zn-Doped Biochar On The Degradation And Transformation Of Pfas In Wastewater Biosolids Compost, Chase Fry, R. Ryan Dupont, Joan Mclean
Spring Runoff Conference
Background
- >5.8 million dry metric tons of biosolids were produced in 2018.
- It is difficult & expensive to landfill all biosolids produced.
- Biosolids are increasingly used as an agricultural fertilizer and soil amendment.
Ground Water Assessment Of Cache Valley Using Modern Tracing Techniques, Eric Humphrey, Bethany Neilson
Ground Water Assessment Of Cache Valley Using Modern Tracing Techniques, Eric Humphrey, Bethany Neilson
Spring Runoff Conference
Monitor, analyze, and predict current and evolving dynamics of complex human and natural Earth-system interactions and to deliver actionable information at scales and timeframes relevant to decision makers.
Reconstructing 5000 Years Of Hurricane Activity In Holyrood Pond Using Sediment Core Analysis, Jamie Mclaulin, Arielle Nogueira, Elizabeth Wallace
Reconstructing 5000 Years Of Hurricane Activity In Holyrood Pond Using Sediment Core Analysis, Jamie Mclaulin, Arielle Nogueira, Elizabeth Wallace
Knowledge and Creativity Expo
Hurricanes are hazardous and costly events that annually negatively impact people that live in coastal areas in North America. The current observational record of hurricanes is short (1970- present) and does not offer insight into the effects of climate change on hurricane frequency. One method of improving and extending our observational record of hurricanes is to reconstruct paleohurricanes using sediment cores. These cores record hurricane activity in the form of coarse-grained overwash layers that are deposited when hurricanes move sand from beaches into backbarrier ponds. In this project, we analyzed sediment cores from Atlantic Canada to locate coarse-grained storm layers …
Methane Consumption Rates By Coastal Virginia Beach Microbes, James R. Bailey Ii
Methane Consumption Rates By Coastal Virginia Beach Microbes, James R. Bailey Ii
Knowledge and Creativity Expo
This study measures whether microbial communities in the shallow coastal waters of Virginia Beach are capable of consuming methane in the water column. Using methane enrichment incubations and gas chromatography, we found no measurable methane oxidation of our samples over multi-day periods. These results suggest that these coastal waters may act as net sources of atmospheric methane.
Is The Chesapeake Bay Browning?, Samantha Williamson, Jessie Turner
Is The Chesapeake Bay Browning?, Samantha Williamson, Jessie Turner
Knowledge and Creativity Expo
Brownification is when water bodies turn brown over time. It occurs due to high amounts of color-dissolved organic matter (CDOM). CDOM is organic material, such as decaying leaves and organisms, that leaches into the water column like tea. It absorbs ultraviolet and blue light more than red light, causing the water to appear brown. After comparing surveys from 1987 and 2018, scientists discovered the Adirondack lakes underwent brownification as they recovered from acid rain. However, while increased CDOM can signify an ecosystem’s recovery, it can also hinder seagrass growth. Although scientists have studied this phenomenon in lakes, estuaries have not …
How Much Does Shape Matter: Investigating The Impact Of Marine Particle Morphological Features On In-Situ Settling Velocities Using Pca And Various Ml Models, Huanqing Huang, Alexander B. Bochdansky
How Much Does Shape Matter: Investigating The Impact Of Marine Particle Morphological Features On In-Situ Settling Velocities Using Pca And Various Ml Models, Huanqing Huang, Alexander B. Bochdansky
Knowledge and Creativity Expo
Particle settling velocity serves as an essential component in ocean biological pump, as it determines particle retention time in the water column. Stokes’ law has been widely used to predict particle settling velocities by particle size and excess density in aquatic environments. However, an increasing number of studies suggest that Stokes’ law fits poorly in the size-velocity relationship of observations on small oceanic particles. Here, we present a series of novel approaches to investigate the relative contribution of settling velocities by the particle shape and optical densities using machine learning (ML) models and principal component analysis (PCA), based on 3906 …
Rethinking Harmful Algal Blooms In Utah Waters: A Paradigm Shift In Water Quality And Management, Kabilan Mani
Rethinking Harmful Algal Blooms In Utah Waters: A Paradigm Shift In Water Quality And Management, Kabilan Mani
Spring Runoff Conference
Droughts are intensifying in frequency and severity, straining already limited water supplies.
Hydrodynamics Of Bear Lake: Waves, Currents, Circulation, And Residence Times, Jeffrey Nielson
Hydrodynamics Of Bear Lake: Waves, Currents, Circulation, And Residence Times, Jeffrey Nielson
Spring Runoff Conference
Until we understand water movement, we’ll struggle to explain or manage what happens in Bear Lake.
Water Needs And Recovery Pathways For The Great Salt Lake, David Tarboton, Sarah Null, Bethany Neilson
Water Needs And Recovery Pathways For The Great Salt Lake, David Tarboton, Sarah Null, Bethany Neilson
Spring Runoff Conference
Main Points
- Levels of GSL inherently fluctuate because of variability in precipitation and temperature that drive inflow and evaporation
- Reductions in inflows due to water use are superimposed on this variability
- Consistent delivery of conserved water offers the opportunity to shift the range of lake levels upwards reducing the occurrence of serious adverse effects and increasing the potential for healthy lake levels
- Adding 250 thousand-acre ft/year reduces the occurrence of serious adverse effects from 61% to 28% over the long term
- Adding 800 thousand-acre ft/year shifts the mean of variable lake levels to the lower end of the healthy lake …
Great Salt Lake Basin Integrated Plan, Laura Vernon
Great Salt Lake Basin Integrated Plan, Laura Vernon
Spring Runoff Conference
What is the Great Salt Lake Basin Integrated Plan? A roadmap for managing water in ways that promote a healthy lake and a high quality of life in the basin.
Microplastics As Physical Hubs Amplifying Antiobiotic Resistance Under Mixed-Contaminant Selection In Wastewater Systems, Liyuan Hou
Spring Runoff Conference
Microplastics (MPs) are tiny plastic particles within the range of (0.1 mm to 5 mm) in size
Integrating Hydrology And Human Water Footprints: A Case Study Of The Great Salt Lake Watershed, Rocky Lynne Seeley
Integrating Hydrology And Human Water Footprints: A Case Study Of The Great Salt Lake Watershed, Rocky Lynne Seeley
Spring Runoff Conference
A new model, comprehensively integrating hydrologic, water footprint, and virtual water data
A Conversation On Water, Camille Touton
A Conversation On Water, Camille Touton
Spring Runoff Conference
A conversation on water presentation at the 2026 Spring Runoff Conference.
What’S Next In Water Leasing Panel, Scott Hotaling, Adam Wickline, Hannah Freeze, Matt Anderson, Peter Stanton, Mitch Hancock
What’S Next In Water Leasing Panel, Scott Hotaling, Adam Wickline, Hannah Freeze, Matt Anderson, Peter Stanton, Mitch Hancock
Spring Runoff Conference
Panel on water leasing at the 2026 Spring Runoff Conference.
Balancing Water Needs In Walker Basin, Peter Stanton
Balancing Water Needs In Walker Basin, Peter Stanton
Spring Runoff Conference
Walker Lake
Supported 50% of Mineral County economy
Traditional homeland of Walker River Paiute Tribe (Agai Dicutta)
World-class fishery
Annual Loon Festival
Utah’S Water Network Panel, Brad Mortensen, Kelly Pehrson, Nate Daugs, Brad Parry, Lindsie Smith, Camille Touton, Megan Nelson
Utah’S Water Network Panel, Brad Mortensen, Kelly Pehrson, Nate Daugs, Brad Parry, Lindsie Smith, Camille Touton, Megan Nelson
Spring Runoff Conference
A panel on Utah's water network at the 2026 Spring Runoff Conference.
2026 Northern Utah Water Champion Award, Spring Runoff Conference
2026 Northern Utah Water Champion Award, Spring Runoff Conference
Spring Runoff Conference
Recognizes individuals who have demonstrated sustained, meaningful contributions to the stewardship, management, governance, or understanding of water in Northern Utah.
Utah State University’S Water Legacy, Brad Mortensen
Utah State University’S Water Legacy, Brad Mortensen
Spring Runoff Conference
Utah State University's President, Brad Mortensen, presents at the 2026 Spring Runoff Conference.
Coupling Mechanisms Of Fracture Propagation And Proppant Transport Indeep Coalbed Methane Reservoirs, Guo Xiaodong, Zhang Shicheng, Zhang Jingchen, Zhou Changjing, Zhang Chengsheng, Qiu Shixin, Xi Xiangrui
Coupling Mechanisms Of Fracture Propagation And Proppant Transport Indeep Coalbed Methane Reservoirs, Guo Xiaodong, Zhang Shicheng, Zhang Jingchen, Zhou Changjing, Zhang Chengsheng, Qiu Shixin, Xi Xiangrui
Coal Geology & Exploration
Objectives and Methods Deep coalbed methane (CBM) reservoirs commonly exhibit well-developed beddings, strong mechanical heterogeneity, and high in-situ stress gradients. These characteristics result in pronounced nonlinear fracture propagation and strong multi-field coupling effects during hydraulic fracturing. Consequently, it is challenging to accurately describe the mechanisms governing fracture complexity in deep coal reservoirs using conventional mechanical models for fractures. Using a super-large true triaxial system with dimensions of 2.0 m × 2.0 m × 1.0 m, this study conducted physical simulation experiments on hydraulic fracturing under varying injection rates and viscosities of fracturing fluids. In combination with fracture mechanics and energy …
Advances In Research On Mechanisms And Prevention And Control Technologies For Solid-Phase Production In Hydraulically Fractured Coalbed Methane Wells, Zhang Fengsan, Wu Jinqiao, Lin Jin, Li Yu, Zhang Ying, Li Bing, Zhang Guobiao, Sun Ying, Gan Yuke
Advances In Research On Mechanisms And Prevention And Control Technologies For Solid-Phase Production In Hydraulically Fractured Coalbed Methane Wells, Zhang Fengsan, Wu Jinqiao, Lin Jin, Li Yu, Zhang Ying, Li Bing, Zhang Guobiao, Sun Ying, Gan Yuke
Coal Geology & Exploration
Background The effective coalbed methane (CBM) exploitation using hydraulic fracturing wells is severely constrained by two major solid-phase production issues: coal fines blockage and proppant flowback. The mechanisms behind both issues are associated with complex interplays between geological conditions and engineering disturbances. This study presents a systematic review of the current status of domestic and international research on the mechanisms of the solid-phase production, as well as relevant prevention and control methods. Furthermore, future research directions are proposed.Advances The solid-phase production in hydraulically fractured CBM wells essentially arises from flow-solid-chemical multi-field coupling processes under interplays between geological conditions and …
Predicting The Risk Of Water-Sand Inrushes From Coal Seam Roofs Based On A Small-Size Sample Dataset, Zhang Wenquan, Li Zixu, Zhu Xianxiang, Qiu Wei, Zhang Chengjie
Predicting The Risk Of Water-Sand Inrushes From Coal Seam Roofs Based On A Small-Size Sample Dataset, Zhang Wenquan, Li Zixu, Zhu Xianxiang, Qiu Wei, Zhang Chengjie
Coal Geology & Exploration
Objective The eastern and northern regions of China exhibit thick unconsolidated layers and thin bedrocks, with water-sand inrush disasters occurring frequently. Therefore, accurately predicting the risk of water-sand inrushes from coal seam roofs holds great significance for safe coal mining. However, the water-sand inrushes in these regions exhibit complex disaster-causing mechanisms, which involve the coupling effects of multiple factors. Accordingly, the real-time prediction of the water-sand inrush risk in the field poses challenges including high risk and cost. These issues lead to difficult data acquisition and severely insufficient samples, limiting the accuracy and performance of traditional prediction models. Therefore, there …
A Dynamic Prediction Method For Coal Seam Thickness Based On The Kpca-Pso-Svr Model, Yang Tun, Ye Shugang, Ma Ming, Wang Qianyao
A Dynamic Prediction Method For Coal Seam Thickness Based On The Kpca-Pso-Svr Model, Yang Tun, Ye Shugang, Ma Ming, Wang Qianyao
Coal Geology & Exploration
Objectives and Methods With the development of high-precision and intelligent seismic exploration techniques, it is necessary to accurately quantify and interpret coal seam thickness to provide reliable data for constructing high-precision three-dimensional geological models. This will help ensure safe and efficient coal mining in coal mines. In coal seam thickness prediction, the comprehensive multi-attribute analysis method faces challenges such as the cumbersome selection of optimal seismic attributes and the low predictive accuracy of regression models. To address these challenges, this study proposed a support vector regression (SVR) prediction model based on kernel principal component analysis (KPCA) and particle swarm optimization …
Positive And Negative Pressure Distributions And Gas Migration Mechanisms Under Gas Drainage From Coal Seams Using Ultra-Long Directional Boreholes, Li Quanxin, Zhao Yuechen, Mou Quanbin, Wang Liang, Fang Jun, Wang Chenghao
Positive And Negative Pressure Distributions And Gas Migration Mechanisms Under Gas Drainage From Coal Seams Using Ultra-Long Directional Boreholes, Li Quanxin, Zhao Yuechen, Mou Quanbin, Wang Liang, Fang Jun, Wang Chenghao
Coal Geology & Exploration
Background Gas drainage via ultra-long directional boreholes plays a significant role in gas control in coal mines. To ensure safe and efficient gas drainage using these boreholes, it is critical to determine the mechanisms behind positive- negative pressure coupling, as well as the dominant mechanisms governing gas migration. However, the evolutionary patterns of positive-negative pressure zoning within the boreholes and the primary factors influencing gas drainage efficiency have yet to be accurately characterized. Methods Under the engineering background of the Shendong Baode Coal Mine, this study developed a multi-field coupling model integrating diffusion, seepage, and in-borehole flow fields based on …
Table Of Contents, The Editors
Biogasification Potential Of Medium- To High-Rank Coals And Its Controlling Mechanisms At A Molecular Structural Level, Bao Yuan, Li Jiajun, Li Dan, Chen Xueru, Wang Xiaojing
Biogasification Potential Of Medium- To High-Rank Coals And Its Controlling Mechanisms At A Molecular Structural Level, Bao Yuan, Li Jiajun, Li Dan, Chen Xueru, Wang Xiaojing
Coal Geology & Exploration
Objective Coals with varying metamorphic grades differ significantly in the potential for methane generation through microbial degradation. Medium- to high-rank coals can generate a substantial volume of methane through microbial degradation. However, key factors governing their biogasification potential remain poorly understood. This study aims to identify the dominant factors controlling the potential of medium- to high-rank coals for methane generation through microbial degradation, as well as relevant controlling mechanisms, from the perspective of molecular structures.Methods The Carboniferous-Permian medium- to high-rank coals along the eastern margin of the Ordos Basin were investigated in this study. Using experiments on the hydrocarbon …
Characteristics And Helium Generation Potential Of Ultra-Deep Marine Shales As Helium Source Rocks, Yuan Jiutao, Zhang Wenjin, Song Zezhang, Tian Xingwang, Luo Qingyong, Jin Shigui, Wang Shulong, Wu Meijia, Wang Li, Chen Hongbin, Gao Jiawei, Mikhail Spasennykh, Tagir Karamov
Characteristics And Helium Generation Potential Of Ultra-Deep Marine Shales As Helium Source Rocks, Yuan Jiutao, Zhang Wenjin, Song Zezhang, Tian Xingwang, Luo Qingyong, Jin Shigui, Wang Shulong, Wu Meijia, Wang Li, Chen Hongbin, Gao Jiawei, Mikhail Spasennykh, Tagir Karamov
Coal Geology & Exploration
Objective Large-scale, effective helium source rocks serve as a material basis for the formation of a helium-rich gas field. In the Weiyuan area, Sichuan Basin, the helium-rich gas reservoirs within the Dengying Formation exhibit helium source rocks consisting of the pre-Sinian basement granites and the shales of the Cambrian Qiongzhusi Formation. Compared to the basement granites, studies on the shales of the Qiongzhusi Formation remain limited, including those on the occurrence characteristics of uranium (U)- and thorium (Th)-rich minerals and helium generation potential.Methods This study investigated the shales of the Qiongzhusi Formation, Weiyuan area, Sichuan Basin. By integrating field …