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Articles 511 - 540 of 906
Full-Text Articles in Entire DC Network
Comparison Of Terrain Indices And Landform Classification Procedures In Low-Relief Agricultural Fields, Derek A. Evans, Karl W. J. Williard, Jon E. Schoonover
Comparison Of Terrain Indices And Landform Classification Procedures In Low-Relief Agricultural Fields, Derek A. Evans, Karl W. J. Williard, Jon E. Schoonover
Journal of Geospatial Applications in Natural Resources
Landforms control the spatial distribution of numerous factors associated with agronomy and water quality. Although curvature and slope are the fundamental surface derivatives used in landform classification procedures, methodologies for landform classifications have been performed with other terrain indices including the topographic position index (TPI) and the convergence index (CI). The objectives of this study are to compare plan curvature, the convergence index, profile curvature, and the topographic position index at various scales to determine which better identifies the spatial variability of soil phosphorus (P) within three low relief agricultural fields in central Illinois and to compare how two methods …
Assessing The Impact Of A Supermarket Shuttle Model On Supermarket Access Within Cabell County, West Virginia, Doug Wiley
Theses, Dissertations and Capstones
Will the implementation of a grocery shuttle impact supermarket access for residents of Cabell County, West Virginia? The concentration of supermarkets in the City of Huntington has led to a service gap in the outlying census block groups of the study area. Supermarket access is concentrated in the City of Huntington and may provide a positive outcome for families living within the city. The study assesses the impact of the implementation of a supermarket shuttle on supermarket access within the study area, through spatial analysis of supermarkets, transportation networks, and census block groups. The transportation network data and census block …
Access To Recreational Open Space In Patterson, Ca: A Geospatial Analysis Utilizing Geographic Information Systems, Leanne S. Lynch
Access To Recreational Open Space In Patterson, Ca: A Geospatial Analysis Utilizing Geographic Information Systems, Leanne S. Lynch
Projects
Many cities throughout California have experienced land use shifts from prime agricultural land to developed industrial and residential areas without considering access to recreational open space. Access to recreation through open space or parks is beneficial for the health and well-being of the community while providing aesthetic value and potential preservation of local ecosystems. Since 2002 the City of Patterson, located in California’s Central Valley, has rezoned over 800 acres of agricultural land for urban and industrial use while developers reserved recreational open space (parkland) at locations inconvenient to existing neighborhoods. Although several acres of parkland have been added to …
Laboratory Exercise- Mapping The Risk Of Structural Failure In Schools Due To An Earthquake, Joel Barker, Kimberly Sowards, Casey Webb
Laboratory Exercise- Mapping The Risk Of Structural Failure In Schools Due To An Earthquake, Joel Barker, Kimberly Sowards, Casey Webb
Engineering Applications of GIS - Laboratory Exercises
Utah’s present geology has been greatly dictated by tectonic stresses that have occurred over the last 0.7 Ga. A determining factor in much of this Geology is the Hingeline that runs through Salt Lake County. Throughout the history of the western North America, this has been an important weak zone. It is no surprise that this same zone is now home to the Wasatch Fault System, which accommodates some of the extension of Western North America. The steep mountains facing west toward Salt Lake City were formed from the tectonic processes of the Fault. The Wasatch Fault is a normal …
Laboratory Exercise X – Most Dangerous Places To Live In The United States Based On Natural Disasters, Joshua Alpers, Luke Kevan, Santiago Tovar
Laboratory Exercise X – Most Dangerous Places To Live In The United States Based On Natural Disasters, Joshua Alpers, Luke Kevan, Santiago Tovar
Engineering Applications of GIS - Laboratory Exercises
This laboratory assignment simulates the most dangerous places to live in the United States based on natural disasters. The natural disasters that will be used in this assignment include wild fires, earthquakes, landslides, hurricanes, tornadoes, and flooding. These inputs will be required in creating a heat map of the United States showing what locations are most likely to have a high probability of natural disasters.
Laboratory Exercise – Ideal Locations For A Family, Benjamin Barrett, Colin Esplin, Chris Garcia
Laboratory Exercise – Ideal Locations For A Family, Benjamin Barrett, Colin Esplin, Chris Garcia
Engineering Applications of GIS - Laboratory Exercises
Upon the successful completion of a college degree, many students (and their families) are offered job positions in various locations throughout the Unites States. As a result, these young families are tasked with the challenge of finding a suitable place to live in an area they are completely unfamiliar with. By using a model in ArcMap this task can be made much easier. In this lab a model will be created in ArcGIS Model Builder along with a corresponding map showing suitable locations.
Final Laboratory Project – Emergency Landing Site Map, John Chadwick, Daniel Pope, Todd Weichers
Final Laboratory Project – Emergency Landing Site Map, John Chadwick, Daniel Pope, Todd Weichers
Engineering Applications of GIS - Laboratory Exercises
Utah County is constantly developing and expanding. New developments require new roads, new power lines, and changes to existing topography. GIS data is maintained and made available for the state of Utah by Utah AGRC (Automated Geographic Reference Center). GIS can be used to make an easy to update map that will display the current situation of roads, power lines, population density, and terrain. In this exercise a model will be created that will execute to create a map that will display safe emergency landing sites for recreational aircraft in Utah County.
Laboratory Exercise – Determining Evacuation Route For Deer Creek Dam Failure, Eleise Hinton, Matt Randall, Brian Packer
Laboratory Exercise – Determining Evacuation Route For Deer Creek Dam Failure, Eleise Hinton, Matt Randall, Brian Packer
Engineering Applications of GIS - Laboratory Exercises
Deer Creek Reservoir holds a volume of approximately 153,000 acre-ft of water. All of this water is held back by Deer Creek dam. Below the dam, the Provo River flows through Provo Canyon and down into Provo before terminating at Utah Lake. While the chance of a dam break is considered unlikely, an extreme event such as a major earthquake could trigger a break. In the case of a dam break, residents of Provo who live in the flood path will need to know where to evacuate. This exercise will create a model to show the nearest evacuation sites for …
Laboratory Exercise — Safety On Roads, Elise Estep, Kyungmin Kim, Danielle Nixon
Laboratory Exercise — Safety On Roads, Elise Estep, Kyungmin Kim, Danielle Nixon
Engineering Applications of GIS - Laboratory Exercises
In transportation study area, safety is a great issue. GIS is appropriate to perform spatial analysis the accident history in define area. Specifically, GIS allow researchers to find an area or road segment that have high probability of any type of car accident such as Vehicle to Vehicle, Vehicle to Pedestrian, and Vehicle to Bicycle.
Final Laboratory Project - Finding The Ideal Camping Location In The Uintas, Jeffrey Baker, Josh Curtis, Ryan Egbert
Final Laboratory Project - Finding The Ideal Camping Location In The Uintas, Jeffrey Baker, Josh Curtis, Ryan Egbert
Engineering Applications of GIS - Laboratory Exercises
GIS is used extensively by the United States Forest Service in mapping and research. Many resources are available online including raster data and shapefiles. The use of GIS tools allows for analyzing entire forests and finding specific points within large areas that meet certain criteria. The Ashley National Forest, High Uinta Mountains Wilderness, in northeastern Utah contains many shapefiles including roads, forest, highway, points of interest, lakes, streams, etc. The purpose of this lab is to use these available datasets to identify ideal locations to set up camp in the Uinta Mountains.
Child Safety Near Pot Shops In Denver, Jacob Flansberg, Elise Jackson, Amelia Theobald
Child Safety Near Pot Shops In Denver, Jacob Flansberg, Elise Jackson, Amelia Theobald
Engineering Applications of GIS - Laboratory Exercises
Some major factors in deciding where one’s family should live include relative safety of the neighborhood, available green space such as parks and schools, grocery stores, and other commercial retail in the area. With the legalization of marijuana in states such as Colorado, proximity of these marijuana dispensaries has become another factor. The Normalized Difference Vegetation Index (NDVI) can be used as a measure of vegetation, and to determine areas with high levels of irrigated vegetation. Using ArcGIS Modelbuilder, the data from an NDVI analysis can be used to determine the proximity of marijuana shops to these types of greenspaces …
Missing The Trees For The Forest: The Socioecological Significance Of Dispersed Farmland Trees In Northern Ethiopia, Jacob A. Wall, Travis W. Reynolds
Missing The Trees For The Forest: The Socioecological Significance Of Dispersed Farmland Trees In Northern Ethiopia, Jacob A. Wall, Travis W. Reynolds
Honors Theses
Scattered trees are prominent features in the agricultural landscape of the Ethiopian highlands. The dry Afromontane forests of the Amhara Region in northern Ethiopia have faced centuries of deforestation - the FAO estimates only 3% of the region is forested today. The remaining landscape has been largely converted into agricultural and grazing lands, with the exception of some limited government-protected lands, as well as thousands of small forest fragments left around Orthodox Churches (“church forests”). But while a growing body of scholarship has highlighted the ecological and cultural importance of church forests and other natural forest fragments, the roles of …
Proximity To Children: A Geospatial Approach To Understanding The Relationship Between Fast Food And Schools, Andrew Atwong
Proximity To Children: A Geospatial Approach To Understanding The Relationship Between Fast Food And Schools, Andrew Atwong
CMC Senior Theses
In a time when Americans are waking up to the health consequences of consuming fast food, researchers have discovered that fast food restaurants seem to be located in greater concentrations near primary or secondary schools. While this phenomenon affects the food environments of some children and carries implications as to their short term and long term health (which has also been well researched), this paper focuses primarily on fast food restaurants that are within walking distance of schools. Using Geographic Information Systems (GIS) to integrate geospatial, business, demographic, and food quality data, I use linear regressions to examine whether and …
3d Tool Evaluation And Workflow For An Ecological Approach To Visualizing Ancient Socio-Environmental Landscapes: A Case Study From Copan, Honduras, Heather Richards-Rissetto, Shona Sanford-Long, Jack Kerby-Miller
3d Tool Evaluation And Workflow For An Ecological Approach To Visualizing Ancient Socio-Environmental Landscapes: A Case Study From Copan, Honduras, Heather Richards-Rissetto, Shona Sanford-Long, Jack Kerby-Miller
Department of Anthropology: Faculty Publications
Architectural reconstructions are the centerpieces of ancient landscape visualization. When present, vegetation is relegated to the background, resulting in underutilized plant data—an integral data source for archaeological interpretation—thus limiting the capacity to take advantage of 3D visualization for studying ancient socio-environmental dynamics. Our long-term objective is to develop methods of 3D landscape visualization that have value for examining changes in land use and settlement patterns. To begin to work toward this objective, we have (1) identified 3D tools and techniques for vegetation modeling and landscape visualization, (2) evaluated the pros and cons of these tools, (3) investigated biological and ecological …
Exploring The Potential For Geographic Transportation Modeling To Improve Food Assistance: A Case Study Of The Missoula Food Bank, Mary Buford French
Exploring The Potential For Geographic Transportation Modeling To Improve Food Assistance: A Case Study Of The Missoula Food Bank, Mary Buford French
Graduate Student Theses, Dissertations, & Professional Papers
Over the last ten years, the Missoula Food Bank has seen a greater need for its services leading to funding shortfalls. To meet the needs of an increasing number of clients with a limited budget, the Missoula Food Bank must look for ways to modify its operations while increasing efficiency of its services. As the Food Bank budget is used to acquire food and currently also transport it from warehouse locations to the food pantry in a crowded space, reducing distances and transport cost of hauling food would in turn free up funds to obtain more food. At the same …
Post-Disaster Supply Chain Interdependent Critical Infrastructure System Restoration: A Review Of Data Necessary And Available For Modeling, Varun Ramachandran, Suzanna Long, Tom Shoberg, Steven Corns, Hector J. Carlo
Post-Disaster Supply Chain Interdependent Critical Infrastructure System Restoration: A Review Of Data Necessary And Available For Modeling, Varun Ramachandran, Suzanna Long, Tom Shoberg, Steven Corns, Hector J. Carlo
Engineering Management and Systems Engineering Faculty Research & Creative Works
The majority of restoration strategies in the wake of large-scale disasters have focused on short-term emergency response solutions. Few consider medium- to long-term restoration strategies to reconnect urban areas to national supply chain interdependent critical infrastructure systems (SCICI). These SCICI promote the effective flow of goods, services, and information vital to the economic vitality of an urban environment. To re-establish the connectivity that has been broken during a disaster between the different SCICI, relationships between these systems must be identified, formulated, and added to a common framework to form a system-level restoration plan. To accomplish this goal, a considerable collection …
Anthropogenic Influence On Blackfin Sucker (Thoburnia Atripinnis) Distribution, In The Upper Barren River System, Kentucky And Tennessee, Christa Rose Hurak
Anthropogenic Influence On Blackfin Sucker (Thoburnia Atripinnis) Distribution, In The Upper Barren River System, Kentucky And Tennessee, Christa Rose Hurak
Online Theses and Dissertations
We evaluated the effects of land use and cover on endemic blackfin sucker (Thoburnia atripinnis) catch per unit effort and abundance within the Upper Barren River (UBR) system, a priority conservation area, in south-central Kentucky. Anthropogenic impacts have rendered T. atripinnis a “species of greatest conservation need” by the Kentucky Department of Fish and Wildlife Resources. This study focused on determining if land use surrounding blackfin sucker sampling sites and certain physicochemical parameters could be impacting their inhabitance at these sites. Data collection and ground truthing occurred between September 2015 and June 2016. ArcGIS was used to extract land use …
Valuing Natural Space And Landscape Fragmentation In Richmond, Va, Lee Wyatt Carpenter
Valuing Natural Space And Landscape Fragmentation In Richmond, Va, Lee Wyatt Carpenter
Theses and Dissertations
Hedonic pricing methods and GIS (Geographic Information Systems) were used to evaluate relationships between sale price of single family homes and landscape fragmentation and natural land cover. Spatial regression analyses found that sale prices increase as landscapes become less fragmented and the amount of natural land cover around a home increases. The projected growth in population and employment in the Richmond, Virginia region and subsequent increases in land development and landscape fragmentation presents a challenge to sustaining intact healthy ecosystems in the Richmond region. Spatial regression analyses helped illuminate how land cover patterns influence sale prices and landscape patterns that …
Pretty Maps: Evaluating Gis Adoption Of Cartographic Design Standards And Best Practices In Professional Publications, David Medeiros
Pretty Maps: Evaluating Gis Adoption Of Cartographic Design Standards And Best Practices In Professional Publications, David Medeiros
Master's Theses
The nature of GIS maps, as tools designed for visual communication, puts them in the realm of art that is in many ways unique among scientific tools. As a visual form of communication, maps are responsive to methods of visual design, affecting the map’s appeal and function. Through cartography, a well established body of standards and best-practices exists to help GIS users avoid common design errors and create effective and meaningful maps that support their work. This research examines the adoption rate of those standards amongst professionals using GIS software for creating maps for journal publications. A selection of 80 …
Women Business Leaders In Biotech And Hi-Tech, And Related Industry Cluster Factors, Jessica White
Women Business Leaders In Biotech And Hi-Tech, And Related Industry Cluster Factors, Jessica White
Master's Theses
Women entrepreneurs are on the rise and their numbers have grown at one and a half times the rate of small enterprises generally over the last 15 years. In spite of this, women are underrepresented in the fields of science, technology, engineering, and mathematics (STEM). Women face additional barriers when forging careers within these fields and obtaining startup capital. This study examines female business ownership within the fields of hi-tech and biotech, and the factors that support startups by women throughout the state of California. As both of these industry sectors are known to cluster geographically around sources of venture …
The Feasibility, Practicality And Uses Of Detecting Crop Water Stress In Southern Ontario Apple Orchards With A Uas, Thomas S. Tiidus Mr.
The Feasibility, Practicality And Uses Of Detecting Crop Water Stress In Southern Ontario Apple Orchards With A Uas, Thomas S. Tiidus Mr.
Theses and Dissertations (Comprehensive)
UAS (Unmanned Aerial Systems) are becoming more common place in agricultural sites around the world. While the accuracy of achieving NDVI (Normalized Difference Vegetation Index) from a UAS is well understood, few studies have attempted to acquire other plant health attributes such as CWSI (Crop Water Stress Index), particularly in horticulture such as apple orchards. In addition, no academic studies up to the time of this writing have explored the perceived usefulness of data obtained from a UAS for the average farmer. This study explored the practicality and feasibility of using UAS for apple orchards in Southern Ontario. This study …
Spatial Pattern Analysis Of Agricultural Soil Properties Using Gis, Corrin Jared Mccarn
Spatial Pattern Analysis Of Agricultural Soil Properties Using Gis, Corrin Jared Mccarn
Theses and Dissertations
Agricultural soil properties exhibit variation over field plot scales that can ultimately effect the yield. This study performs multiple spatial pattern analyses in order to design spatially dependent regression models to better understand the interaction between these soil properties. The Cation Exchange Capacity (CEC) and Calcium-Magnesium Ratio (CaMgR) are analyzed with respect to Calcium, Magnesium, and soil moisture values. The CEC and CaMgR are then used to determine impact on the yield values present for the field. Results of this study show a significant measure of model parsimony (0.979) for the Geographically Weighted Regression (GWR) model of the CEC with …
Predicting Toucan Locations In Panama Using Arcgis, Daniel J. Herrera
Predicting Toucan Locations In Panama Using Arcgis, Daniel J. Herrera
Geography: Student Scholarship & Creative Works
Toucans are omnivorous birds native to southern Latin America and South America. They are non-migratory, and their range is disputed among experts. In an attempt to develop a better understanding of the range and behavior of toucans, correlations between toucan presence and geographic features of the area were analyzed to create a location probability map.
Applying Voronoi Tessellations As A Non-Orthogonal Grid Methodology To Inform Public-Private Mix Efforts In Nigeria: An Examination Of The Distribution Of Private Healthcare Providers In Six States And The Covariates Underlying Their Utilization, Trinadh Dontamsetti
USF Tampa Graduate Theses and Dissertations
TB care and prevention is led by the public sector, but many TB symptomatics first seek care in the private sector, highlighting the importance of engaging these facilities. This report examines basic TB epidemiology (such as the gap in case finding that could be addressed in part via private sector activities), health-seeking behaviors (HSB) and diagnostic delays, the size of the private sector, activities of professional societies, and financing. It examines the potential utility of integrating Voronoi tessellations as a GIS-based method for informing and improving Public-Private Mix (PPM) efforts throughout six states in Nigeria. Further, it explores a potential …
Use Of Geographical Information Systems To Identify Counties In Georgia With High Risk For Childhood Lead Poisoning, R. Christopher Rustin, Christy Kuriatnyk, Byron Lobsinger, Simone Charles
Use Of Geographical Information Systems To Identify Counties In Georgia With High Risk For Childhood Lead Poisoning, R. Christopher Rustin, Christy Kuriatnyk, Byron Lobsinger, Simone Charles
Journal of the Georgia Public Health Association
Background: For children in Georgia, lead poisoning is a substantial public health problem. Primary risk factors include low socioeconomic status and poor-quality housing built prior to 1978. The Environmental Health Team of the Georgia Department of Public Health (DPH) utilized geographical information system (GIS) technology and census housing data to identify counties in which children have high risk for lead poisoning. The purpose of this research was to update and refine previous maps developed with older technology and on a different geographic scale so that targeted public health interventions can be developed.
Methods: Data related to stratified and median housing …
A Multilevel Approach To Recidivism: The Role Of Risk For Criminal Opportunities At The Neighborhood Level, Grant Drawve
A Multilevel Approach To Recidivism: The Role Of Risk For Criminal Opportunities At The Neighborhood Level, Grant Drawve
Theses and Dissertations
In the past, research has focused on individual-level characteristics in examining recidivism, which could, in part, be because recidivism relies on the offenders to commit crime. In short, people recidivate, so research focuses on individuals, the ‘who’. With such a spotlight on individual characteristics, other, potential influential factors of recidivism are limited in research. One potential aspect of recidivism research that may add to the understanding is that the offenders are going back to neighborhoods. The expansion of research on recidivism to examine the neighborhood factors builds from identify the ‘who’ and working towards understanding the ‘where’. The purpose of …
Women Workin’ It In Gis: A Mixed Methods Study Of Underrepresentation And The Gendered Experience Among Female Gis Practitioners, Livia M. Betancourt Mazur
Women Workin’ It In Gis: A Mixed Methods Study Of Underrepresentation And The Gendered Experience Among Female Gis Practitioners, Livia M. Betancourt Mazur
Theses and Dissertations
Through novel empirical research, this thesis explores the experience of women working in the professional field of geographic information systems (GIS), adding to GIS literature, as well as to academic geography and wider science, technology, engineering and mathematics (STEM) discourses, addressing gaps in these bodies of knowledge.
Transportation And Sanitation Drivers Of Land Use/Land Cover Change: Loss Of The Jamaica Bay Wetlands, Margaret Joy Cytryn
Transportation And Sanitation Drivers Of Land Use/Land Cover Change: Loss Of The Jamaica Bay Wetlands, Margaret Joy Cytryn
Theses and Dissertations
This thesis presents an analysis (1830-2014) of the historical events of land use/land cover change in the Jamaica Bay estuary, identification of the agents of change, and a perspective on the potential drivers of transportation and sanitation in land use/land cover change.
Karenia Brevis Hot Spots In The West Florida Shelf And Their Associated Socio-Economic Implications, Diana A. Moanga
Karenia Brevis Hot Spots In The West Florida Shelf And Their Associated Socio-Economic Implications, Diana A. Moanga
Open Access Theses
Harmful algal blooms are almost an annual occurrence on the West Florida Shelf. They are caused by the toxic dinoflagellate Karenia brevis (K. brevis). Intense bloom events result in significant environmental, economic, and human-health impacts associated with the release of potent natural toxins, known as brevotoxins. If inhaled or ingested they can produce substantial adverse health effects. In order to mitigate and minimize the vast array of impacts associated with K. brevis blooms, an overarching interdisciplinary framework is needed. A critical factor in understanding K. brevis dynamics requires mapping and monitoring bloom development and transport, and identifying areas of localized …
A Mixed Methods Assessment Of The Development, Use, And Educational Effectiveness Of University Campus Sustainability Tours, Ellen R. Barringer
A Mixed Methods Assessment Of The Development, Use, And Educational Effectiveness Of University Campus Sustainability Tours, Ellen R. Barringer
Masters Theses & Specialist Projects
Campus sustainability tours are available at dozens of colleges and universities across the United States. These tours are considered a vital tool in interpreting the environmental and sustainable aspects of a campus to educate the campus community. Minimal quantitative data have been collected regarding their development, use, and effectiveness. In order to develop a dataset regarding the use of campus sustainability tours, surveys and interviews were sent to universities with such tours to discuss use and methods of development. A campus-wide electronic survey was sent to the Western Kentucky University (WKU) main campus community to determine their experiences with the …