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Full-Text Articles in Physical Sciences and Mathematics

Wildfire In Utah: The Physical And Economic Consequences Of Wildfire, Paul Mark Jakus, Man-Keun Kim, Randy S. Martin, Ian Hammond, Edd Hammill, Nancy O. Mesner, Jacob Stout Feb 2017

Wildfire In Utah: The Physical And Economic Consequences Of Wildfire, Paul Mark Jakus, Man-Keun Kim, Randy S. Martin, Ian Hammond, Edd Hammill, Nancy O. Mesner, Jacob Stout

Watershed Sciences Faculty Publications

PRELUDE

On June 26, 2012 a lightning strike ignited a wildfire in the Manti-La Sal National Forest of central Utah’s Carbon and Emery counties (Figure P.1). By the time the Seeley wildfire was contained three weeks later, some 48,000 acres of federal, state, and private land had been burned and $8.7 million in suppression costs expended (Styler 2012). According to the Monitoring Trends in Burn Severity (MTBS.gov) project, nearly one-third of the acreage was severely burned, damaging vegetation and soils for years to come. Severe burns vastly increase the erosion potential of burnt landscapes, and the steep lands of Huntington …


Redbeds Of The Upper Entrada Sandstone, Central Utah: Facies Analysis And Regional Implications Of Interfingered Sabkha And Fluvial Terminal Splay Sediments, Jeffery Michael Valenza Dec 2016

Redbeds Of The Upper Entrada Sandstone, Central Utah: Facies Analysis And Regional Implications Of Interfingered Sabkha And Fluvial Terminal Splay Sediments, Jeffery Michael Valenza

Theses and Dissertations

First distinguished from other sedimentary successions in 1928, the Entrada Sandstone has been the subject of numerous studies. The western extent of the formation was initially described as laterally continuous "earthy" red beds, and categorized as sub- to supratidal marine-influenced sediments. Recent workers have reexamined the sedimentary facies hosted by the Entrada Sandstone, and findings suggest purely terrestrial depositional environments. Several outcrops of the upper Entrada hosted peculiar sedimentary features, including undulatory and convex-upward, parallel-laminated bedforms, reminiscent of hummocky cross-stratification- unexpected features in a terrestrial environment. The purpose of this study was to collect detailed outcrop measurements of these and …


Slides: Flpma In Its Historical Context, John D. Leshy Oct 2016

Slides: Flpma In Its Historical Context, John D. Leshy

FLPMA Turns 40 (October 21)

Presenter: John D. Leshy, Sunderland Distinguished Professor of Law Emeritus, U.C. Hastings College of the Law

36 slides

This session traces the history of FLPMA including, among other things, its legislative, administrative, and historical antecedents, including for example, the Public Land Law Review Commission’s 1970 report, One Third of Our Nation’s Lands. It then considers FLPMA’s unique public lands policies and requirements and how they are reflected in the BLM’s management of public lands today.

See: https://www.nps.gov/parkhistory/online_books/blm/history/contents.htm


Systems Modeling To Improve The Hydro-Ecological Performance Of Diked Wetlands, Omar Alminagorta, David E. Rosenberg, Karin M. Kettenring Sep 2016

Systems Modeling To Improve The Hydro-Ecological Performance Of Diked Wetlands, Omar Alminagorta, David E. Rosenberg, Karin M. Kettenring

Publications

Water scarcity and invasive vegetation threaten arid-region wetlands and wetland managers seek ways to enhance wetland ecosystem services with limited water, labor, and financial resources. While prior systems modeling efforts have focused on water management to improve flow-based ecosystem and habitat objectives, here we consider water allocation and invasive vegetation management that jointly target the concurrent hydrologic and vegetation habitat needs of priority wetland bird species. We formulate a composite weighted usable area for wetlands (WU) objective function that represents the wetland surface area that provides suitable water level and vegetation cover conditions for priority bird species. Maximizing …


Slides: The Colorado River Basin, Larry Macdonnell Jun 2016

Slides: The Colorado River Basin, Larry Macdonnell

Coping with Water Scarcity in River Basins Worldwide: Lessons Learned from Shared Experiences (Martz Summer Conference, June 9-10)

Presenter: Larry MacDonnell, Senior Fellow, Getches-Wilkinson Center, University of Colorado

17 slides


Sedimentology And Stratigraphy Of The Middle Jurassic Preuss Sandstonein Northern Utah And Eastern Idaho, Preston Scott Cook Jun 2016

Sedimentology And Stratigraphy Of The Middle Jurassic Preuss Sandstonein Northern Utah And Eastern Idaho, Preston Scott Cook

Theses and Dissertations

The purpose of this study is to analyze the sedimentology and stratigraphy of the Middle Jurassic Preuss Sandstone and re-evaluate past sedimentological interpretations. The Preuss is located in northern Utah, western Wyoming and eastern Idaho and is stratigraphically equivalent to the Entrada Sandstone, which is Callovian in age (Dossett et al., 2014). This study is the first attempt at 1) a sequence stratigraphic framework, 2) a petroleum system analysis and 3) an extraterrestrial analog study for the Preuss. This study frames the Preuss within three broad facies groups: marine, coastal and terrestrial. The marine group includes the open marine and …


Spatial Trends And Facies Distribution Of The High-Energy Alluvial Cutler Formation, Southeastern Utah, Isaac John Allred Jun 2016

Spatial Trends And Facies Distribution Of The High-Energy Alluvial Cutler Formation, Southeastern Utah, Isaac John Allred

Theses and Dissertations

The Cutler Formation is composed of thick, arkosic, alluvial conglomerate, sandstone, and mudstone shed southwestward from the Uncompahgre Uplift into the Paradox Basin. More basin-ward the Cutler is recognized as a group consisting of differentiable formations. Discrete formations historically have not been distinguished near the uplift, but this study identified several separate successions in the Richardson Amphitheater. Research at the Richardson Amphitheater, ~12 km southwest of the uplift and ~30 km northeast of Moab, Utah, led to a systematic subdivision of the Permian Cutler Formation proximal to the uplift. Likely driven by channel cutting and migration across the alluvial fan, …


Stomatal Differences In Western Aspen And Linkage To Drought Tolerance, Brianne Palmer May 2016

Stomatal Differences In Western Aspen And Linkage To Drought Tolerance, Brianne Palmer

Undergraduate Honors Capstone Projects

Aspen (Populus tremuloides) is the most widely distributed broadleaf forest tree in North America. However, aspen are declining rapidly in areas of the Intermountain West. Aspen in this area are prone to experiencing limited moisture and high temperatures. An important aspect of plant physiology when dealing with these stressors is stomatal function. Stomata control the rate of photosynthesis, therefore, the size and frequency of the stomata is likely to influence the survival of the species in this environment.

An unusual feature of aspen is the high frequency of triploidy in the southern portion of its range. Stomata! size …


Looking Upstream: An Analysis Of Low Water Levels In Lake Powell And The Impacts On Water Supply, Hydropower, Recreation, And The Environment: A Companion Report To The Bathtub Ring, Michael Johnson, Lindsey Ratcliff, Rebecca Shively, Leanne Weiss, Yale University. School Of Forestry And Environmental Studies, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, Western Water Policy Program Jan 2016

Looking Upstream: An Analysis Of Low Water Levels In Lake Powell And The Impacts On Water Supply, Hydropower, Recreation, And The Environment: A Companion Report To The Bathtub Ring, Michael Johnson, Lindsey Ratcliff, Rebecca Shively, Leanne Weiss, Yale University. School Of Forestry And Environmental Studies, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, Western Water Policy Program

Books, Reports, and Studies

viii, 110 pages : color illustrations, color maps


Slides: The Colorado River: Innovation In The Face Of Scarcity, Anne J. Castle Jun 2015

Slides: The Colorado River: Innovation In The Face Of Scarcity, Anne J. Castle

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

Presenter: Anne J. Castle, Stanford Woods Institute for the Environment

40 slides


Slides: Perspectives On Water Management In Arizona, Kathy Jacobs Jun 2015

Slides: Perspectives On Water Management In Arizona, Kathy Jacobs

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

Presenter: Kathy Jacobs, Director, Center for Climate Adaptation Science and Solutions (CCASS), Department of Soil, Water and Environmental Science, University of Arizona

25 slides


Modeling Seed Dispersal And Population Migration Given A Distribution Of Seed Handling Times And Variable Dispersal Motility: Case Study For Pinyon And Juniper In Utah, Ram C. Neupane May 2015

Modeling Seed Dispersal And Population Migration Given A Distribution Of Seed Handling Times And Variable Dispersal Motility: Case Study For Pinyon And Juniper In Utah, Ram C. Neupane

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The spread of fruiting tree species is strongly determined by the behavior and range of fruit-eating animals, particularly birds. Birds either consume and digest seeds or carry and cache them at some distance from the source tree. These carried and settled seeds provide some form of distribution which generates tree spread to the new location. Firstly, we modal seed dispersal by birds and introduce it in a dispersal model to estimate seed distribution. Using this distribution, we create a population model to estimate the speed at which juniper and pinyon forest boundaries move.

Secondly, we introduce a fact that bird …


Catching Mesospheric Gravity Waves Over Bear Lake, Utah, Kelly Osborne Apr 2015

Catching Mesospheric Gravity Waves Over Bear Lake, Utah, Kelly Osborne

Physics Capstone Projects

The Utah State Mesospheric Temperature Mapper (MTM) is a high resolution CCD imager capable of remote sensing faint optical emissions from the night sky to determine mesospheric temperature and its variability at an altitude of ~87 km (or 50 miles). The MTM was operated at the Bear Lake Observatory (BLO) for a two year period (Jan 2012 – Dec 2013) to investigate the seasonal characteristics of temperature variability at mid-latitudes.

This study was to be done from March 2013 – April 2014 but due to issues with the data in late 2013 it was changed to January 2013 - December …


First Report On Dinosaur Tracks From The Burro Can Yon Formation, San Juan County, Utah, Usa – Evidence Of A Diverse, Hitherto Un Known Lower Cretaceous Dinosaur Fauna, Jesper Milan, Luis M. Chiappe, David B. Loope, James I. Kirkland, Martin G. Lockley Jan 2015

First Report On Dinosaur Tracks From The Burro Can Yon Formation, San Juan County, Utah, Usa – Evidence Of A Diverse, Hitherto Un Known Lower Cretaceous Dinosaur Fauna, Jesper Milan, Luis M. Chiappe, David B. Loope, James I. Kirkland, Martin G. Lockley

Department of Earth and Atmospheric Sciences: Faculty Publications

The newly discovered White Mesa tracksite in the Burro Canyon Formation represents a snap shot of a diverse, Lower Cretaceous dinosaur fauna from south-eastern Utah. The tracks were found at a construction site where the sand stone had been bull dozed and broken up. All tracks were found as deep, well-preserved natural casts on the under side of the sand stone slabs. Individual theropod tracks are 19–57 cm in length; one peculiar track shows evidence of a possible pathological swelling in the middle of digit III and an apparently didactyl track is tentatively as signed to a dromaeosaurid. Individual sauropod …


The Value Of Water In The Colorado River Basin: A Snapshot Of A Fluid Landscape, Brian Annes, Colorado River Governance Initiative Jan 2015

The Value Of Water In The Colorado River Basin: A Snapshot Of A Fluid Landscape, Brian Annes, Colorado River Governance Initiative

Books, Reports, and Studies

33 pages.


Reply To Simon And Reed: Independent And Converging Results Rule Out Historic Disturbance And Confirm Age Constraints For Barrier Canyon Rock Art, Joel L. Pederson, Harriet Cornachione, Steven R. Simms, Reza Sohbati, Tammy M. Rittenour, Andrew S. Murray, Gary Cox Dec 2014

Reply To Simon And Reed: Independent And Converging Results Rule Out Historic Disturbance And Confirm Age Constraints For Barrier Canyon Rock Art, Joel L. Pederson, Harriet Cornachione, Steven R. Simms, Reza Sohbati, Tammy M. Rittenour, Andrew S. Murray, Gary Cox

Geosciences Faculty Publications

We welcome this further discussion of our results on the age of the Great Gallery rock art in the Canyonlands of Utah. The comment by Simon and Reed (1) focuses on just one of the three components of our study (2), which is presented in greater technical detail in ref. 3 and is surely our best-constrained and least-surprising result: the dating of a rock-fall that removed some of the art and thus provides a minimum age. Simon and Reed (1) point out that the Great Gallery panel is not pristine and relate the sordid human history of visitation and possible …


Age Of Barrier Canyon-Style Rock Art Constrained By Cross-Cutting Relations And Luminescence Dating Techniques, Joel L. Pederson, Harriet Cornachione, Steven R. Simms, Reza Sohbati, Tammy M. Rittenour, Andrew S. Murray, Gary Cox Sep 2014

Age Of Barrier Canyon-Style Rock Art Constrained By Cross-Cutting Relations And Luminescence Dating Techniques, Joel L. Pederson, Harriet Cornachione, Steven R. Simms, Reza Sohbati, Tammy M. Rittenour, Andrew S. Murray, Gary Cox

Geosciences Faculty Publications

Rock art compels interest from both researchers and a broader public, inspiring many hypotheses about its cultural origin and meaning, but it is notoriously difficult to date numerically. Barrier Canyon-style (BCS) pictographs of the Colorado Plateau are among the most debated examples; hypotheses about its age span the entire Holocene epoch and previous attempts at direct radiocarbon dating have failed. We provide multiple age constraints through the use of cross-cutting relations and new and broadly applicable approaches in optically stimulated luminescence dating at the Great Gallery panel, the type section of BCS art in Canyonlands National Park, southeastern Utah. Alluvial …


Slides: What We Know (And Don't Know) About Air Quality Impacts Of Oil And Gas Development, Anna Karion Jun 2014

Slides: What We Know (And Don't Know) About Air Quality Impacts Of Oil And Gas Development, Anna Karion

Water and Air Quality Issues in Oil and Gas Development: The Evolving Framework of Regulation and Management (Martz Summer Conference, June 5-6)

Presenter: Anna Karion, NOAA/ESRL, University of Colorado/CIRES

35 slides


Facies Analysis, Sequence Stratigraphy And Paleogeography Of The Middle Jurassic (Callovian) Entrada Sandstone: Traps, Tectonics, And Analog, George R. Jennings Iii Jun 2014

Facies Analysis, Sequence Stratigraphy And Paleogeography Of The Middle Jurassic (Callovian) Entrada Sandstone: Traps, Tectonics, And Analog, George R. Jennings Iii

Theses and Dissertations

The late Middle Jurassic (Callovian) Entrada Sandstone has been divided into two general facies associations consisting primarily of eolian sandstones in eastern Utah and "muddy" redbeds in central Utah. Sedimentary structures within the redbed portion are explained by the interfingering of inland sabkha, alluvial, and eolian depositional systems. A complete succession from the most basinward facies to the most terrestrial facies in the Entrada Sandstone consists of inland sabkha facies overlain by either alluvial or eolian facies. Where both alluvial and eolian facies interfinger, alluvial facies overlain by eolian facies is considered a normal succession. Sequence boundaries, often identified by …


Network Applications And The Utah Homeless Network, Michael A. Snyder May 2014

Network Applications And The Utah Homeless Network, Michael A. Snyder

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Graph theory is the foundation on which social network analysis (SNA) is built. With the flood of "big data," graph theoretical concepts and their linear algebraic counterparts are essential tools for analysis in the burgeoning field of network data analysis, in which SNA is a subset. Here we begin with an overview of SNA. We then discuss the common descriptive measures taken on network data as well as proposing new measures specific to homeless networks. We also define a new data structure which we call the location sequence matrix. This data structure makes certain computational network analyses particularly easy. …


Climate Forcings On Groundwater Variations In Utah And The Great Basin, Kirsti A. Hakala May 2014

Climate Forcings On Groundwater Variations In Utah And The Great Basin, Kirsti A. Hakala

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Groundwater levels over northern Utah have undergone a declining trend since the 1960’s. This trend has made apparent the need to understand the relationship between climate and groundwater resources. Such necessary information is already in dire need in places such as California. At the close of 2013, California had experienced its driest year in recorded history, with severe drought continuing for the foreseeable future. Utah is the second driest state in the U.S., and therefore has been paying close attention to California’s current water crises. Water resource projections may prove to be one of the most vital pieces of information …


Landscape Evolution Of The Needles Fault Zone, Utah, Investigated Through Chronostratigraphic And Terrain Analyses, Faye L. Geiger May 2014

Landscape Evolution Of The Needles Fault Zone, Utah, Investigated Through Chronostratigraphic And Terrain Analyses, Faye L. Geiger

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Arcing eastward from the deep gorge of Cataract Canyon on the Colorado River is a series of aligned valleys (graben) and ridges (horst). This unusual landscape has formed as subsurface salt deforms toward the river and dissolves away, causing the overlying rocks to fault, slide, and subside. Geologists have long been interested in this actively evolving area they call the Needles fault zone, because understanding its mechanics and origin may shed light on how faults work in general and similar, yet inaccessible places like offshore rift zones or even the surface of the Moon. Despite this interest, the timing and …


Slides: Best Management Practices For Oil And Gas Development And Comparative Water Quality Database Of Regulations Relating To Shale Oil And Gas, Matt Samelson, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment. Intermountain Oil And Gas Bmp Project Mar 2014

Slides: Best Management Practices For Oil And Gas Development And Comparative Water Quality Database Of Regulations Relating To Shale Oil And Gas, Matt Samelson, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment. Intermountain Oil And Gas Bmp Project

Fracking, Water Quality and Public Health: Examining Current Laws and Regulations (March 20)

Presenter: Matt Samelson, J.D., Attorney, Consultant for Intermountain Oil and Gas Best Management Practices (BMP) Project, Getches-Wilkinson Center for Natural Resources, Energy and the Environment, University of Colorado Law School

34 slides


Charting A New Course For The Colorado River: A Summary Of Guiding Principles, Colorado River Research Group Jan 2014

Charting A New Course For The Colorado River: A Summary Of Guiding Principles, Colorado River Research Group

Books, Reports, and Studies

[4] p. : color illustrations ; 28 cm.


The First Step In Repairing The Colorado River’S Broken Water Budget: Summary Report, Colorado River Research Group Jan 2014

The First Step In Repairing The Colorado River’S Broken Water Budget: Summary Report, Colorado River Research Group

Books, Reports, and Studies

4 p. : color illustration and chart ; 28 cm.


The First Step In Repairing The Colorado River’S Water Budget: Technical Report, Colorado River Research Group Jan 2014

The First Step In Repairing The Colorado River’S Water Budget: Technical Report, Colorado River Research Group

Books, Reports, and Studies

22 p. : charts (some color) ; 28 cm.

Contents: Introduction -- Diagnosing the problem -- Plans to increase use of basin water: Overview; Upper basin states: Colorado; New Mexico; Utah; Wyoming; Lower basin states: Arizona; California; Nevada; Tribal demands -- Reconciling fantasy with reality: Upper basin; Lower basin -- Conclusion -- Literature cited.

Tables and figures: Declining reservoir storage on the Colorado River -- Average supplies versus demands on the Colorado River mainstem -- Relationship between Lake Powell storage and Lee Ferry virgin flows -- Relationship between Lake Powell releases and Lake Mead storage -- Tribal water rights/demands: upper …


The Pikeminnow Against The Dam, Lucy Andrews Jan 2014

The Pikeminnow Against The Dam, Lucy Andrews

Gateway Prize for Excellent Writing

No abstract provided.


Palynology Of The Upper Cretaceous Ferron-Notom Sandstone, Utah, Isil Akyuz Jan 2014

Palynology Of The Upper Cretaceous Ferron-Notom Sandstone, Utah, Isil Akyuz

LSU Master's Theses

ABSTRACT The Late Cretaceous Ferron-Notom Sandstone Member of the Mancos Shale Formation plays a dominant role in oil production in Utah. Although numerous sedimentological and sequence stratigraphic studies have been conducted in recent years on this sequence, palynological analyses had not yet been undertaken. Here we present palynological data from one hundred twenty eight samples collected in the Ferron-Noton Sandstone Member outcroping in south-central Utah. The purpose of this study is to refine our understanding of climatic and depositional environments and to build a biostratigraphic palynological framework. The dominance of terrestrial palynomorphs, especially the high yield in moisture-loving cryptogam spores …


A Tree-Ring Based Reconstruction Of Logan River Streamflow, Northern Utah, Eric B. Allen, Tammy M. Rittenour, R. Justin Derose, Matthew F. Bekker, Roger Kjelgren, Brendan M. Buckley Dec 2013

A Tree-Ring Based Reconstruction Of Logan River Streamflow, Northern Utah, Eric B. Allen, Tammy M. Rittenour, R. Justin Derose, Matthew F. Bekker, Roger Kjelgren, Brendan M. Buckley

Geosciences Faculty Publications

We created six new tree‐ring chronologies in northern Utah, which were used with preexisting chronologies from Utah and western Wyoming to reconstruct mean annual flow for the Logan River, the largest tributary of the regionally important Bear River. Two reconstruction models were developed, a “Local” model that incorporated two Rocky Mountain juniper chronologies located within the basin, and a “Regional” model that also included limber pine and pinyon pine chronologies from a larger area. The Local model explained 48.2% of the variability in the instrumental record and the juniper chronologies better captured streamflow variability than Douglas‐fir collected within the Logan …


Digital Outcrop Model And Paleoecology Of The Eight-Foot Rapid Algal Field (Middle Pennsylvanian Lower Ismay Sequence), Paradox Basin, Utah, Colton Lynn Goodrich Dec 2013

Digital Outcrop Model And Paleoecology Of The Eight-Foot Rapid Algal Field (Middle Pennsylvanian Lower Ismay Sequence), Paradox Basin, Utah, Colton Lynn Goodrich

Theses and Dissertations

Although phylloid algal mounds have been studied for 50 year, much remains to be determined concerning the ecology and sedimentology of these Late Paleozoic carbonate buildups. Herein we perform a digital outcrop study of the well-known Middle Pennsylvanian Lower Ismay mound interval in the Paradox Basin because outcropping mounds along the San Juan River are cited as outcrop analogs of reservoir carbonates in the Paradox Basin oil province of Utah and adjacent states. The principal field area is the Eight Foot algal field located at river mile 19.2 on the San Juan River, approximately 14 miles SSW of Bluff, Utah. …