1 - 25 of 102
Number of results to display per page
1 Warnick, Richard MichaelA digital atlas of Utah wildernessHuman-environment interaction has long been a primary theme of geographic thought. Public lands policies, and particularly wilderness designations, significantly shape the natural environment in western states such as Utah. Geographic information science and the Internet are now important parts of t...Atlas; Geography; GIS; Public lands; Utah; Wilderness2011-12
2 Howard, Kelsey AnnA late pleistocene to early holocene climate, vegetation and fire history record for the bonneville basin, utah, usaThe Bonneville basin of northwestern Utah acts as a significant source of paleoenvironmental data due to the sedimentary and geomorphic evidence left behind from the late Pleistocene Lake Bonneville. Macroscopic charcoal and pollen from wetland sediments of North Redden Springs, Utah (40˚ 00' 47.1"...Bonneville Basin; Climate; Vegetation; Fire History; Heinrich Events; Lake Bonneville; Paleoecology; Paleo Indians2016-05
3 Li, YingruA multilevel analysis of China's regional inequality in a geographic information system environmentChina's reform and transition have dramatically accelerated the socioeconomic development in the last three decades. At the same time, the unequal distributions of wealth and social resources have been intensified. China's regional inequality has attracted more attention from both policy makers and ...China regional development; China economic development; China socioeconomic2012-05
4 Wellard, Blake H.A new ancestral diploid species of echinocereus endemic to southwestern utah and northern arizonaEchinocereus relictus B. Wellard is a newly described diploid (2n=22) species that is the presumed ancestor of the tetraploid (2n=44) E. engelmaniii. Echinocereus engelmannii subsp. engelmannii represents both diploid and tetraploid cytotypes. Diploid individuals are endemic to a narrow section of s...Cactaceae; Caryophyllales; Conservation; Diploid; Echinocereus; Morphomertics2017
5 Carter, Vachel AshleyA paleoecological fire and vegetation history in Southeastern WyomingThe Medicine Bow Range of southeastern Wyoming acts as a conduit for vegetation migration from Colorado into southeastern Wyoming. Macroscopic charcoal and pollen from Long Lake, Wyoming were used to reconstruct past fire and vegetation changes in conjunction with local, regional and broad-scale cli...Fire; Paleoecology; Vegetation; Wyoming2010-08
6 Higby Halseth, Deanna ReneeA paleolimnological investigation of historical environmental change in East Canyon ReservoirEast Canyon Reservoir is located 32 km east of Salt Lake City, Utah, and serves as a resource for irrigation, culinary water, and recreation. This research used paleolimnology and historical records to investigate the impacts of multiple stressors, including land clearance, dam construction and enl...East Canyon Reservoir; Paleolimnology; Remote sensing; Reservoir; Utah; Water resources2011-05
7 Zhang, YuanA rangeland predictive phenological model for the upper Colorado River Basin and its web deliveryUnderstanding the spatially and temporally variant phenological responses and cycles can greatly assist the administrative planning, policy making and management in grazing, planting, and ecosystem conservation. The linkages of analysis as a basis for management have received increasing attention in...Decision support system; Multivariate adaptive regression splines; Phenological modeling; Phenology; Remote sensing; Upper Colorado River Basin2013-08
8 McCoy, William DennisA reinterpretation of certain aspects of the late quaternary glacial history of little Cottonwood Canyon, Wasatch Mountains, UtahHolocene and late Pleistocene deposits in the cirques and at the mouths of Little Cottonwood and Bells Canyons are reexamined. Stratigraphy, radiocarbon dating, lichenometry, and relative age dating methods provide evidence for a new age interpretation of glacier and rock glacier deposits. Of the re...1977
9 Morris, Stacy RandolphAfter the Fremont: fire and vegetation history of prehistoric abandonment and historic occupation of Range Creek Canyon, UtahPaleoecological reconstructions were used to analyze a low elevation wetland core extracted from Range Creek Canyon, Cherry Meadows, a location known to have Fremont habitation. The data presented here show the vegetation and fire regime changes within Range Creek Canyon from ca. A.D. 1166-1949, fo...Fire, Fremont; Native American; Range Creek Canyon; Vegetation2010-08
10 Spencer, Jessica D.An 8,000-year fire and vegetation history of an oak savanna in East Central MinnesotaOak savanna, a transitional ecosystem between open prairie and dense oak forest, was once widespread in central and southeastern Minnesota. As Europeans settled the area during the mid-1800s AD, much of the oak savanna ecosystem was destroyed through clearing for homesteads and agriculture, or conve...Charcoal; Fire; Minnesota; Oak savanna; Pollen; Sherburne2012-05
11 Groeneveld, Joshua AndrewAn agent-based model of bicyclists accessing light-rail stations in Salt Lake CityMany of the existing transportation analysis methods rely on aggregate data analysis. While these models have been well established in the transportation community, there are many components of transportation that these methods neglect. Among these marginalized components are multimodal trips. Using...Agent-based model; Bicycle; Mulitmodal; NetLogo; Salt Lake City, Utah2011-08
12 Kobayashi, TetsuoAn interactive visualization tool for mobile objectsRecent advancements in mobile devices - such as Global Positioning System (GPS), cellular phones, car navigation system, and radio-frequency identification (RFID) - have greatly influenced the nature and volume of data about individual-based movement in space and time. Due to the prevalence of mobil...Exploratory data analysis; GIS; Mobile object; Visualization2010-08
13 Zumbado, Thomas CalderonAn investigation of the philosophical changes of the Abu Sayyaf group using geospatial analysisPolitical scientists believe that the Abu Sayyaf Group's (ASG) penchant for accumulating funds through hostage ransoming and other criminal activity has caused the organization to drift away from its Islamic foundations to become bandits. This research explores this claim by applying geospatial ana...Abu sayyaf group; Crime; Geospatial; Philippines; Terrorism; Transformatio2011-08
14 Culpepper, Patrick JohnAnalysis of terrestrial ground-based lindar datasets on active lava flow processes and the geomorphology of Pu'u O'o, HawaiiSince 1983 the eruptions from the Pu'u O'o vent in the Kilauea rift zone on the island of Hawaii have provided researchers numerous opportunities to study effusion rates, emplacement controls and the geomorphology of lava flows. This thesis utilizes recently acquired subcentimeter topographical d...LiDAR system; Pahoehoe flow; Volcanic hazard mitigation2009-04-27
15 Cao, LinaAnthropogenic habitat disturbance and the dynamics of hantavirus using remote sensing, GIS, and a spatially explicit agent-based modelSin Nombre virus (SNV), a strain of hantavirus, causes hantavirus pulmonary syndrome (HPS) in humans, a deadly disease with high mortality rate (>50%). The primary virus host is deer mice, and greater deer mice abundance has been shown to increase the human risk of HPS. There is a great need in unde...Agent-based model; Deer mouse; GIS; Hantavirus; MODIS; Peromyscus maniculatus2010-08
16 Bares, RyanThe application of stable carbon isotopes as an enhanced method for statistical crossdating: A case study from Range Creek Canyon, UtahDendroarcheological samples pose a particular challenge when attempting to crossdate them against a master chronology. Previous attempts to accurately crossdate dendroarcheological samples from Range Creek Canyon have had limited success (Towner et al. 2009), due in part to the nonsignificance of th...Geography; Biogeochemistry2014
17 Selkowitz, David JamesAutomated Approaches for Snow and Ice Cover Monitoring Using Optical Remote SensingSnow and ice cover exhibits a high degree of spatial and temporal variability. Data from multispectral optical remote sensing instruments such as Landsat are an underutilized resource that can extend our ability for mapping these phenomena. High resolution imagery is used to demonstrate that even a...Geography2017
18 Naisbitt, AdamAvalanche frequency and magnitude: using power-law exponents to investigate snow avalanche size proportions through time and spacePower-laws provide a means for investigating snow avalanche frequency/magnitude relationships and their contributing factors. This research uses power-laws to explore variations in avalanche size proportions through space and time, as well as investigating factors which may contribute to these var...Avalanche forecasting; Avalanche models2008-05-31
19 Fu, LiweiBicycling preferences and behavior in salt lake cityImproving our understanding of cycling behaviors in urban areas is an important step in producing a more sustainable transportation system. Based on a stated preference survey in Salt Lake City, Utah, this paper studies the influence of attitudes on bicycling behavior. A travel preference factor ana...attitude; bicycling frequency; preferences; route choice; values2015
20 Nishizawa, ShizuoBonneville lake basin shoreline records of large lake and abrupt climate change eventsThis study examines lacustrine shoreline sediment records of the Bonneville lake basin in North America. One of the most straightforward, robust, and useful characteristics of lacustrine shorelines is that shoreline features always form at water's edge to mark where the lake surface level is. Hence,...Abrupt climate change events; Lake Bonneville; Lake surface area; Monsoons; Shoreline records2010-07
21 Bidez, Clarice LeeChanging Agricultural Suitability: Model Development and Applications in the Past and FutureModeling the relationships between climate and crop growth is an important tool to study agriculture in the past and future. Agricultural suitability models, which estimate the probability of rain-fed cultivation in a particular location, provide an opportunity to predict agricultural conditions for...Physical geography; Geography; Agriculture2018
22 Miller, JulieCharacterizing the relationship between Ku-band radar backscatter and snow accumulation on the Greenland ice sheetRecent accelerated mass loss offset by increased Arctic precipitation highlights the importance of a comprehensive understanding of the mechanisms controlling mass balance on the Greenland ice sheet. Knowledge of the spatiotemporal variability of snow accumulation is critical to accurately quantify ...Greenland ice sheet; Scatterometry; Snow accumulation2012-12
23 Farnham, Delanie RChild growth as a measure of resilience to food insecurity in burkina fasoWith the population steadily increasing, the demand for food is of great concern for many developing countries. Agrarian societies in developing nations are of particular concern because their food supply derives primarily from rain-fed agriculture. Increases in drought conditions and lower than ave...Burkina Faso; Childhood Malnutrition; Food Security; Quantile Regression; Resilience2017
24 Davis, Andrea NicoleChildhood Undernutrition within the Dry Zone of Myanamr: Does Geographic Location Influence Health Outcomes?Food security is dependent on ecological conditions and alterations to local environments, including impacts from climate change. Myanmar is experiencing the second highest rate of extreme weather events in the world and a high level of food insecurity, which threatens the nutritional supply for its...Southeast Asian studies; Geography; Nutrition2017
25 Chavez, Vanessa GraceClimatic influences on two cienega complexes from northern baja california: a ~45,000 year paleoecological recordCiénegas are a type of specialized systems that are found in desert landscapes and characterized by organic-rich and waterlogged soils. The existence of these systems corresponds with stability of the hydrologic cycle in arid landscapes so that when they are active they serve as a dependable source...Baja California; ENSO; Fire; Late-glacial; Monsoon2016
1 - 25 of 102