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Utah State University

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Full-Text Articles in Physical Sciences and Mathematics

Supplementary Files For: "Interactive Modeling Of Bear Lake Elevations In A Future Climate", Benjamin D. Shaw, Scout Jarman, Brennan Bean, Kevin R. Moon, Wei Zhang, Nathan Butler, Tommy Bolton, April Knight, Emeline Haroldsen, Abby Funk, Rebecca Higbee Jun 2024

Supplementary Files For: "Interactive Modeling Of Bear Lake Elevations In A Future Climate", Benjamin D. Shaw, Scout Jarman, Brennan Bean, Kevin R. Moon, Wei Zhang, Nathan Butler, Tommy Bolton, April Knight, Emeline Haroldsen, Abby Funk, Rebecca Higbee

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The water level, or elevation, of Bear Lake has a significant impact on agriculture, power, infrastructure, and recreation for communities around the lake. Climatological variables, such as precipitation, temperature, and snowfall, all have an impact on the elevation of Bear Lake. As the climate changes due to greenhouse gas emissions, the typical behaviors of these climate variables change, leading to new behaviors in Bear Lake elevation. Because of the importance of Bear Lake, it is vital to be able to model and understand how Bear Lake's elevation may change in the face of different climate scenarios and to gain further …

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Production, Utilization And Quality Of Irrigated Grasses And Legumes In The Mountain West Usa Under Mob Stocking Or Clipping, Jennifer W. Macadam, Brody Maughan, Xin Dai May 2024

Production, Utilization And Quality Of Irrigated Grasses And Legumes In The Mountain West Usa Under Mob Stocking Or Clipping, Jennifer W. Macadam, Brody Maughan, Xin Dai

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Feed is the most costly input for US ruminant livestock production systems, and increasing the utilization efficiency of irrigated forage systems can improve system profitability. This study assessed the production, utilization and quality of 22 intensively managed perennial grasses and legumes. Forages were cultivated as monocultures under irrigation and subjected to similarly intense clipping or mob stocking for two years at six-week intervals between May and September. Grasses and legumes were randomly assigned to 22 adjacent 1.5-m-wide by 9-m-long subplots within each whole plot, and pairs of whole plots were randomly assigned to grazing or clipping management. Seven grasses did …

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Data From: Climate Change-Driven Cumulative Mountain Pine Beetle-Caused Whitebark Pine Mortality In The Greater Yellowstone Ecosystem, William W. Macfarlane Nov 2023

Data From: Climate Change-Driven Cumulative Mountain Pine Beetle-Caused Whitebark Pine Mortality In The Greater Yellowstone Ecosystem, William W. Macfarlane

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In 2018-2019 the Landscape Assessment System (LAS), an aerial survey method was used to assess mountain pine beetle (Dendroctonus ponderosae; MPB) - caused mortality of whitebark pine (Pinus albicaulis) across the Greater Yellowstone Ecosystem (59000 km2; GYE). This consisted of 11,942 km of flightlines, along which 4,434 geo-tagged, oblique aerial photos were captured and processed. A mortality rating of none to severe (0 to 4 nt attack or 5.0 5.4 old attack) was assigned to each photo based on the amount of red (recent attack) and gray (old attack) trees visible. The method produced a photo inventory of 74 percent …

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Digital Atlas Of The Vascular Plants Of Utah, R. Douglas Ramsey, Leila M. Shultz, Wanda Lindquist, Chris Garrard, Mindy Wheeler Feb 2023

Digital Atlas Of The Vascular Plants Of Utah, R. Douglas Ramsey, Leila M. Shultz, Wanda Lindquist, Chris Garrard, Mindy Wheeler

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Locations of 74,755 vascular plant vouchers representing 2,425 species were digitized into a spatial database from the Atlas of the Vascular Plants of Utah (Albee et al. 1988). Source maps consisted of 1:6,000,000-scale shaded relief maps of Utah with points representing collection locations by species. Location points, representing 1 or more specimens, were transposed onto these maps from the approximately 400,000 herbarium records of 3 major universities and federal land management agencies.

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Pariette Wetlands Water, Sediment And Plant Total Selenium Concentration, Colleen P. Jones, Paul R. Grossl, Astrid R. Jacobson Dec 2022

Pariette Wetlands Water, Sediment And Plant Total Selenium Concentration, Colleen P. Jones, Paul R. Grossl, Astrid R. Jacobson

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We measured total Selenium in plants from July through November of 2012 and in water, macroinvertebrates, plants, and sediments from July of 2014 from Pariette Wetlands, Utah, U.S.A. to test for spatial, temporal, plant species and plant tissue distribution of Selenium.

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Data From: Yellow Air Day Advisory Study, Arthur J. Caplan Aug 2021

Data From: Yellow Air Day Advisory Study, Arthur J. Caplan

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Using a dataset consisting of daily vehicle trips, PM2.5 concentrations, along with a host of climactic control variables, we test the hypothesis that “yellow air day” advisories provided by the Utah Division of Air Quality resulted in subsequent reductions in vehicle trips taken during northern Utah’s winter-inversion seasons in the early 2000s. Winter inversions occur in northern Utah when climactic conditions are such that PM2.5 concentrations (derived mainly from vehicle emissions) become trapped in the lower atmosphere, leading to unhealthy air quality (concentrations of at least 35 µg/m3) over a span of what are called “red air days”. When concentrations …

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Data For "Arch_Covid_Crowding_Vc", Wayne Freimund, Zachary D. Miller Jan 2021

Data For "Arch_Covid_Crowding_Vc", Wayne Freimund, Zachary D. Miller

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Monitoring of visitor use in Arches National Park to assess social distancing behaviors of visitors during the COVID-19 pandemic.

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Data From: Cavitation Clusters In Lipid Systems – The Generation Of A Bifurcated Streamer And The Dual Collapse Of A Bubble Cluster, Silvana Martini, Peter Birkin, Tadd T. Truscott Oct 2019

Data From: Cavitation Clusters In Lipid Systems – The Generation Of A Bifurcated Streamer And The Dual Collapse Of A Bubble Cluster, Silvana Martini, Peter Birkin, Tadd T. Truscott

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Over the past decade several studies have reported the use of high intensity ultrasound (HIU) to induce the crystallization of lipids. The effect that HIU has on lipid crystallization is usually attributed to the generation of cavities but acoustic cavitation has never been fully explored in lipids. The dynamics of a particular cavitation cluster next to a piston like emitter in an oil, was investigated in this study. The lipid systems, which are important in food processing, are studied with high-speed camera imaging, laser scattering and pressure measurements. A sequence of stable clusters were noted. In addition, a bifurcated streamer …

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