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Articles 1 - 14 of 14

Full-Text Articles in Environmental Engineering

Ascending The Data Usability Gap In Mountainous Regions Through Scientist-Stakeholder Co-Production, Alan Rhoades Mar 2019

Ascending The Data Usability Gap In Mountainous Regions Through Scientist-Stakeholder Co-Production, Alan Rhoades

Spring Runoff Conference

No abstract provided.


Water Challenges In The Lower Colorado River Basin And The Drought Contingency Plan, Sharon Megdal Mar 2019

Water Challenges In The Lower Colorado River Basin And The Drought Contingency Plan, Sharon Megdal

Spring Runoff Conference

No abstract provided.


Water Management In The West—A Federal Perspective, Brent Esplin Mar 2019

Water Management In The West—A Federal Perspective, Brent Esplin

Spring Runoff Conference

No abstract provided.


Harmful Algae Blooms In Utah, Scott Daly Mar 2019

Harmful Algae Blooms In Utah, Scott Daly

Spring Runoff Conference

No abstract provided.


An Update On Water Legislation From The 2019 Utah Legislative Session, Tim Hawkes Mar 2019

An Update On Water Legislation From The 2019 Utah Legislative Session, Tim Hawkes

Spring Runoff Conference

No abstract provided.


Spring Runoff Conference 2019: Water Challenges In The West, Spring Runoff Conference Mar 2019

Spring Runoff Conference 2019: Water Challenges In The West, Spring Runoff Conference

Spring Runoff Conference

The Spring Runoff Conference, hosted by the USU Water Initiative, is held annually on the campus of Utah State University. The conference provides a forum for interdisciplinary sharing and exchange of ideas on water-related issues in Utah and the lntermountain Region


Improving The Accuracy For The Long-Term Hydrologic Impact Assessment (L-Thia) Model, Anqi Zhang, Lawrence Theller, Bernard A. Engel Aug 2017

Improving The Accuracy For The Long-Term Hydrologic Impact Assessment (L-Thia) Model, Anqi Zhang, Lawrence Theller, Bernard A. Engel

The Summer Undergraduate Research Fellowship (SURF) Symposium

Urbanization increases runoff by changing land use types from less impervious to impervious covers. Improving the accuracy of a runoff assessment model, the Long-Term Hydrologic Impact Assessment (L-THIA) Model, can help us to better evaluate the potential uses of Low Impact Development (LID) practices aimed at reducing runoff, as well as to identify appropriate runoff and water quality mitigation methods. Several versions of the model have been built over time, and inconsistencies have been introduced between the models. To improve the accuracy and consistency of the model, the equations and parameters (primarily curve numbers in the case of this model) …


Channel Movement, Error Analysis, And Impacts For Neighboring Landowners: A Lower Bear River, Ut Case Study, Russell Babb, Kellie Shawn, Todd Brown, Ayman Alafifi, David Rosenberg Apr 2016

Channel Movement, Error Analysis, And Impacts For Neighboring Landowners: A Lower Bear River, Ut Case Study, Russell Babb, Kellie Shawn, Todd Brown, Ayman Alafifi, David Rosenberg

Spring Runoff Conference

The Bear River Fellows program is a unique learning experience for undergraduate students giving hands-on experience in collecting, synthesizing, and analyzing environmental and ecological data. The Bear River is an important resource that provides water to farms, reservoirs, wetlands, wildlife, and hydropower generation. Because of the river’s value, it is important to understand how the Bear River channel moves and how that affects the surrounding landscape, which is a topic of interest for local land owners but especially conservationists in protecting wetlands and river ecology. We collected hydrological, topologic, and vegetative data from three persisting research sites along an 8 …


Seasonal Flow Rates Along The Lower Bear River, Ut, Todd Keniry, Dahlia Curiel, Dylan Anderson, Ayman Alafifi, David E. Rosenberg Apr 2016

Seasonal Flow Rates Along The Lower Bear River, Ut, Todd Keniry, Dahlia Curiel, Dylan Anderson, Ayman Alafifi, David E. Rosenberg

Spring Runoff Conference

The goal of this research is to identify how flow on the Bear River in Cache Valley has changed over the last three years and how flow changes seasonally. Identifying flows is important to manage water resources along the Bear River. We collected and processed water pressure data every 30 minutes using HOBO transducers at two sites in Cache Valley (Morton, just downstream of highway 142, and Confluence which is located at the confluence of the Bear and Cub Rivers) south of the Idaho‐Utah border in 2015. We also measured flow and water stage up to three times per year …


Evaluation Of First Order Error Induced By Conservative-Tracer Temperature Approximation For Mixing In Karstic Flow, Philippe Machetel, David A. Yuen Oct 2015

Evaluation Of First Order Error Induced By Conservative-Tracer Temperature Approximation For Mixing In Karstic Flow, Philippe Machetel, David A. Yuen

Sinkhole Conference 2015

Fluid dynamics in karst systems is complex due to the heterogeneity of hydraulic networks that combine the Porous Fractured Matrix (PFM) and the interconnected drains (CS). These complex dynamic systems often need to be treated as “black boxes” in which only input and output properties are known. In this work, we propose to assess the first-order error induced by considering the temperature as a conservative tracer for flows mixing in karst (fluvio-karst). The fluvio-karstic system is treated as an open thermodynamic system (OTS), which exchanges water and heat with its surrounding. We propose to use a cylindrical PFM drained by …


Building Codes To Minimize Cover Collapses In Sinkhole-Prone Areas, George Veni, Connie Campbell Brashear, Andrew Glasbrenner Oct 2015

Building Codes To Minimize Cover Collapses In Sinkhole-Prone Areas, George Veni, Connie Campbell Brashear, Andrew Glasbrenner

Sinkhole Conference 2015

Cover- collapse sinkholes are forming with increasing frequency under buildings. Analyses of sinkhole distribution in Beacon Woods, Florida, preliminarily indicate their occurrence is an order of magnitude greater in urban versus undeveloped areas, suggesting the structures themselves are enhancing the collapse process. The most likely causes are induced recharge via at least one of two sources. First, runoff and drainage from roads, structures, and impoundments that is not adequately dispersed will promote sinkhole development. Second, leaking water, sewer, and septic systems beneath or adjacent to a structure will also promote collapse. The process of cover-collapse from induced recharge is well …


Karst Spring Cutoffs, Cave Tiers, And Sinking Stream Basins Correlated To Fluvial Base Level Decline In South-Central Indiana, Garre A. Conner Oct 2015

Karst Spring Cutoffs, Cave Tiers, And Sinking Stream Basins Correlated To Fluvial Base Level Decline In South-Central Indiana, Garre A. Conner

Sinkhole Conference 2015

The Mitchell Aquifer averages 80m in thickness and underdrains a karst region in the Crawford Upland and Mitchell Plateau region in south-central Indiana (110,000 km2). The Springville Escarpment is a transitional boundary between the upland and plateau. Cave stream linking between cave tiers in the aquifer and correlation of cave tier inception horizons to a base level decline surface is interpreted for the Kirby Watershed, encompassing the prekarst headland of Indian Creek (42km2). The watershed was severed from lower Indian Creek at Eller Col by limestone cavern drainage on the ridge between White River and East Fork. Correlation of recharge …


Tracer Studies Conducted Nearly Two Decades Apart Elucidate Groundwater Movement Through A Karst Aquifer In The Frederick Valley Of Maryland, Keith A. White, Michael K. Cobb, Thomas Aley, Ethan Weikel Oct 2015

Tracer Studies Conducted Nearly Two Decades Apart Elucidate Groundwater Movement Through A Karst Aquifer In The Frederick Valley Of Maryland, Keith A. White, Michael K. Cobb, Thomas Aley, Ethan Weikel

Sinkhole Conference 2015

A pair of groundwater tracer studies at a single karst test site were completed 18 years apart. The results of these studies have provided evidence of both relatively rapid advective transport via conduits and an extreme capacity for dye storage and retardation. The tracer results, coupled with other subsurface investigation data, are used to develop a conceptual model for groundwater movement through this karst aquifer in the Frederick Valley of Maryland, as well as identify implications for remediation. Three fluorescent tracer dyes used in the initial study were detected in several background monitoring locations established for the second study conducted …


Using A High Altitude Balloon Platform To Observe And Measure Seasonal Ozone Flux Over Agricultural Landscapes, Cody Sabo Jun 2015

Using A High Altitude Balloon Platform To Observe And Measure Seasonal Ozone Flux Over Agricultural Landscapes, Cody Sabo

2017 Academic High Altitude Conference

The concentration of greenhouse gasses (GHGs) in the atmosphere has continued to rise since the industrial era. This issue has had a multitude of negative impacts on all living things. Among the major GHGs are carbon dioxide, methane, nitrous oxide, and ozone. Ozone is of particular importance because it not only has the ability to trap heat in the atmosphere, but it also directly impacts organisms by causing harm to both plants and humans. The damage that ozone causes to plants is most closely linked to ozone uptake rather than ozone concentration. So, measuring ozone uptake is becoming critical for …