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Articles 1 - 30 of 208
Full-Text Articles in Geography
Fifty Years Of Weathering The Storm: Are The Louisiana Gulf Coastal Parishes Prepared For Another Major Hurricane?, Danielle L. Boudreau
Fifty Years Of Weathering The Storm: Are The Louisiana Gulf Coastal Parishes Prepared For Another Major Hurricane?, Danielle L. Boudreau
University of New Orleans Theses and Dissertations
This study examines ten major storms that have affected Louisiana in the last fifty years, beginning with Hurricane Betsy in 1965. The goal is to determine if the nine coastal parishes are prepared adequately for another major hurricane impact. It examines storms that have affected the state physically, in terms of property and ecological damages. It also considers storms that provided non-physical influences, by way of mitigation policy changes and social, economical, ecological, and political policy alterations. The main focus is on the transformations, if any, of social vulnerability in light of emergency preparedness in the areas impacted, particularly along …
The Production Of Unequal Vulnerability To Flood Hazards In Metro Vancouver, Canada, Greg S. Oulahen
The Production Of Unequal Vulnerability To Flood Hazards In Metro Vancouver, Canada, Greg S. Oulahen
Electronic Thesis and Dissertation Repository
Flood risk is a growing concern in Canada’s cities. Residents of these cities have differential risk according to their unique vulnerability and exposure to flood hazards. Factors related to societal structural forces, human agency, and place interact to produce vulnerability to hazards. Analysis of the factors that influence vulnerability will lead to a better understanding of how unequal vulnerability to hazards is produced among residents of a city. This dissertation investigates the factors that influence vulnerability to flood hazards in a Canadian coastal urban region, Metro Vancouver. It develops and applies a conceptual framework for looking across scales and across …
Understanding Geo-Social Network Patterns: Computation, Visualization, And Usability, Caglar Koylu
Understanding Geo-Social Network Patterns: Computation, Visualization, And Usability, Caglar Koylu
Theses and Dissertations
Geo-social networks are formed by flows of physical entities (e.g., humans, vehicles, sensors, animals), and communication (e.g., information, ideas, innovation) that connect places to places and individuals to individuals. Several major problems remain to be addressed for understanding the complex patterns in geo-social networks. This dissertation makes the following contributions to the theory and methodologies that aim at understanding complex geo-social data by integrating methods of computation, visualization and usability evaluation. Chapter 2 introduces a novel network-based smoothing approach that addresses the size-difference and small area problem in calculating and mapping locational (graph) measures in spatial interaction networks. The new …
Situating Belonging Through Multi-Sited Identities: Community Building Among Middle Eastern Christians In Upstate South Carolina, Amelia Ayoob
Theses and Dissertations
This thesis is a Human Geography perspective on immigrant identity and integration. Using the case of a diverse, multigenerational Middle Eastern Christian population in the Upstate region of South Carolina, I explore how Middle Eastern immigrants and their descendants have negotiated belonging and identity in the United States by simultaneously building new social networks in the Upstate and maintaining ties to the Middle East. The focus on a single case allowed for an in-depth exploration of how geographic and historical contexts have shaped the present-day dynamics of the community (broadly defined) constructed around two Catholic churches, one Latin and one …
Pattern Extraction From Spatial Data - Statistical And Modeling Approches, Hu Wang
Pattern Extraction From Spatial Data - Statistical And Modeling Approches, Hu Wang
Theses and Dissertations
Exploratory and statistical spatial data analyses are commonly used in a wide range of research fields, such as epidemiology, disease surveillance and crime analysis. Spatial epidemiology, for example, needs to detect significant spatial clusters of disease incidents to help epidemiologists identify environmental factors and spreading patterns associated with certain diseases. Existing spatial analysis approaches mostly focus on the analysis of spatial lattice data, i.e., observations organized by locations such as county or census tract. With the wide spread of location-aware technologies such as GPS and smart phones, spatial interaction data have become increasingly available, e.g., human daily mobility, traveling and …
Into The Red: A Look Into The Reasons Why Refugees Decide To Flee, Settle Or Migrate To And From Morocco, Fadeelah E. Holivay
Into The Red: A Look Into The Reasons Why Refugees Decide To Flee, Settle Or Migrate To And From Morocco, Fadeelah E. Holivay
Master's Theses
This research paper explores some of the main reasons why refugees and asylum seekers, particularly from sub-Saharan African countries, embark on a journey and decide to settle, flee or migrate to and from Morocco. Because of this phenomenon, Morocco has seen a 96% increase of refugees migrating to the borders of Morocco each year for the past three years. Many say that this astonishing increase of migrants choosing Morocco is due to such factors as: wars breaking out regionally across central African and Middle Eastern countries causing them to flee; Morocco being a culturaly diverse francophone country whose laws and …
Land Use Interactions Drive Southwestern Ontario Stream Nutrient Concentrations, Renee L. Lazor
Land Use Interactions Drive Southwestern Ontario Stream Nutrient Concentrations, Renee L. Lazor
Electronic Thesis and Dissertation Repository
Human activities have transformed the landscape and altered natural habitats through intensive land uses including agriculture and urbanization. Identifying land use drivers of tributary nutrient concentrations and describing the magnitude and direction of their relationship are critical activities to improvement management of water quality in basins draining into the Great Lakes. The overarching goal of my thesis was to quantify the cumulative influence of spatial patterns in land use and land cover on variation of nutrient concentrations in tributaries of the Great Lakes. Biweekly water chemistry samples were collected in 29 streams located in southern Ontario between May and November, …
Dirty Modernism: Ecological Objects In American Poetry, Michael D. Sloane
Dirty Modernism: Ecological Objects In American Poetry, Michael D. Sloane
Electronic Thesis and Dissertation Repository
This dissertation examines how early-to-mid twentieth century American poetry is preoccupied with objects that unsettle the divide between nature and culture. Given the entanglement of these two domains, I argue that American modernism is “dirty.” This designation leads me to sketch what I call “dirty modernism,” which includes the registers of waste, energy, animality, raciality, and the sensual. Reading these registers, I turn to what I call “ecological objects,” or representations of how nature and culture come together, which includes trash, natural resources, inanimals, and tools. Through an ecocritical mode of analysis, I introduce dirty modernism with the Baroness Elsa …
Environmental Health Effects Of Multiple Exposures: Systemic Risks And The Detroit River International Crossing Study, Tor H. Oiamo
Environmental Health Effects Of Multiple Exposures: Systemic Risks And The Detroit River International Crossing Study, Tor H. Oiamo
Electronic Thesis and Dissertation Repository
This thesis examines cumulative exposures to traffic noise and outdoor air pollution on environmental and health related quality of life in Windsor, Ontario, and provides a critical analysis of the environmental assessment process for the Detroit River International Crossing (DRIC) Study. The research utilizes a systemic risk framework to understand environmental health and stress effects of cumulative exposures. The significance of this research is based on a relative absence of literature on the systemic health risks of cumulative exposures and the need to elucidate environmental annoyance as a health outcome for risk assessment. The objectives of the research were to …
Spatial Dimensions Of Tower Karst And Cockpit Karst: A Case Study Of Guilin, China, Wei Huang
Spatial Dimensions Of Tower Karst And Cockpit Karst: A Case Study Of Guilin, China, Wei Huang
Theses and Dissertations
Tower karst (fenglin) and cockpit karst (fengcong) are two globally important representative styles of tropical karst. Previously proposed sequential and parallel development models are preliminary, and geomorphological studies to date do not provide enough satisfactory evidence to delineate the spatial and temporal relation between the two landscapes. This unclear interpretation of tower-cockpit relationships not only obscures understanding of the process-form dynamics of these tropical karst landforms, but also confuses their definition. Moreover, previous technological limitations, as well as the fragmental nature of the karst landscapes, has limited incorporation of geologic and other data into broad geospatial frameworks based on geographic …
Local Planning And High-Speed Rail: Responses And Perceptions In A Developing Amtrak Corridor, John-Luke D'Ambrosio
Local Planning And High-Speed Rail: Responses And Perceptions In A Developing Amtrak Corridor, John-Luke D'Ambrosio
Masters Theses
Incremental speed increases have been a main focus of Amtrak in recent years. Now operating at 110 mph within three different service lines in the United States, Amtrak is making progress toward achieving maximum speeds within rail corridors. This study focuses on Amtrak’s Wolverine service line which operates daily passenger rail service between Chicago, Illinois and Detroit/Pontiac, Michigan. Specifically, this study will look at six cities connected by this service that are east of Chicago. The six cities examined in this research are Hammond, Indiana, Michigan City, Indiana, New Buffalo, Michigan, Niles, Michigan, Dowagiac, Michigan, and Kalamazoo, Michigan. This segment …
Use Of Remote Imagery And Object-Based Image Methods To Count Plants In An Open-Field Container Nursery, Josue Nahun Leiva
Use Of Remote Imagery And Object-Based Image Methods To Count Plants In An Open-Field Container Nursery, Josue Nahun Leiva
Graduate Theses and Dissertations
In general, the nursery industry lacks an automated inventory control system. Object-based image analysis (OBIA) software and aerial images could be used to count plants in nurseries. The objectives of this research were: 1) to evaluate the effect of an unmanned aerial vehicle (UAV) flight altitude and plant canopy separation of container-grown plants on count accuracy using aerial images and 2) to evaluate the effect of plant canopy shape, presence of flowers, and plant status (living and dead) on counting accuracy of container-grown plants using remote sensing images. Images were analyzed using Feature Analyst® (FA) and an algorithm trained using …
Mapping The Distribution Of Barrier Island Slash Pine Woodland And Determining Growth Responses Of Pinus Elliottii To Hurricane Katrina (2005) On Cat Island, Mississippi, William Richard Funderburk
Mapping The Distribution Of Barrier Island Slash Pine Woodland And Determining Growth Responses Of Pinus Elliottii To Hurricane Katrina (2005) On Cat Island, Mississippi, William Richard Funderburk
Master's Theses
Barrier islands are ubiquitous features along the Atlantic and Gulf of Mexico North American coastline and are subjected disturbances such as extreme episodic events. The wind, waves, and storm surges of Hurricane Katrina heavily impacted the Mississippi–Alabama barrier island chain on August 29, 2005. Cat Island experienced a 7-m storm surge, the highest wind energy in the chain, but was estimated to have the least amount of forest mortality. The purpose of this study was to investigate the distribution of Pinus elliottii on Cat Island Mississippi and evaluate relationships of elevation with mean radial growth rate (mm y ̄ ˡ), …
Structure, Aboveground Biomass, And Soil Characterization Of Avicennia Marina In Eastern Mangrove Lagoon National Park, Abu Dhabi, Tareefa Alsumaiti
Structure, Aboveground Biomass, And Soil Characterization Of Avicennia Marina In Eastern Mangrove Lagoon National Park, Abu Dhabi, Tareefa Alsumaiti
Graduate Theses and Dissertations
Mangrove forests are national treasures of the United Arab Emirates (UAE) and other arid countries with limited forested areas. Mangroves form a crucial part of the coastal ecosystem and provide numerous benefits to society, economy, and especially the environment. Mangrove trees, specifically Avicennia marina, are studied in their native habitat in order to characterize their population structure, aboveground biomass, and soil properties. This study focused on Eastern Mangrove Lagoon National Park in Abu Dhabi, which was the first mangrove protected area to be designated in UAE. In situ measurements were collected to estimate Avicennia marina status, mortality rate (%), …
Gis Framework For Spatiotemporal Mapping Of Urban Flooding And Analyze Watershed Hydrological Response To Land Cover Change, Sayed Joinal Hossain Abedin
Gis Framework For Spatiotemporal Mapping Of Urban Flooding And Analyze Watershed Hydrological Response To Land Cover Change, Sayed Joinal Hossain Abedin
UNLV Theses, Dissertations, Professional Papers, and Capstones
Urban flooding is a manmade disaster, and a recurrent problem in cities around the globe. Increased surface imperviousness due to urbanization along with inadequate drainage infrastructure system are the chief culprits for urban flooding. Flooding in an urban area brings about severe economic, structural, and environmental damages, and can be associated with casualties too. In order to evade flooding, an efficient flood model is imperative to study current flooding, and analyze flooding behavior to urban surface characteristics.
This research aims to develop a framework using Geographic Information System (GIS) to perform modeling and mapping of flood spatiotemporal variation in urban …
Novel Deployment Of Elpasolites As A Dual Neutron / Gamma-Ray Directional Detector, Amber Lynn Guckes
Novel Deployment Of Elpasolites As A Dual Neutron / Gamma-Ray Directional Detector, Amber Lynn Guckes
UNLV Theses, Dissertations, Professional Papers, and Capstones
At a time when upholding national security has never been more important, there exists a need for the advancement of radiation detection technologies. Neutron and photon detectors are essential to fulfilling mission areas including detection and localization of missing, stolen or smuggled radiological or nuclear materials, quantification of the effects of a radiological or nuclear event, and supporting nonproliferation efforts. The aim of this study was to evaluate a new radiation detector based on the scintillation elpasolite compound Cs2LiYCl6:Ce (CLYC) for simultaneous measurements of neutron and photon flux and the localization of radiation sources. Previous studies performed on the CLYC …
Remote Sensing Based On Hyperspectral Data Analysis, Ershad Sharifahmadian
Remote Sensing Based On Hyperspectral Data Analysis, Ershad Sharifahmadian
UNLV Theses, Dissertations, Professional Papers, and Capstones
In remote sensing, accurate identification of far objects, especially concealed objects is difficult. In this study, to improve object detection from a distance, the hyperspecral imaging and wideband technology are employed with the emphasis on wideband radar. As the wideband data includes a broad range of frequencies, it can reveal information about both the surface of the object and its content. Two main contributions are made in this study:
1) Developing concept of return loss for target detection: Unlike typical radar detection methods which uses radar cross section to detect an object, it is possible to enhance the process of …
New Sheriff In (Down)Town?: Business Improvement Areas And The Regulation Of Public Spaces: A Case Study Of Seattle, Washington, Shannon R. Kelley
New Sheriff In (Down)Town?: Business Improvement Areas And The Regulation Of Public Spaces: A Case Study Of Seattle, Washington, Shannon R. Kelley
Theses and Dissertations
This study examines Business Improvement Areas (BIAs) in Seattle, WA. While the literature on BIAs continues to grow, interestingly, very few studies have been performed on BIAs in west coast cities, as the mass preponderance of the BIA literature body within the United States has focused on east coast cities. Thus, the first purpose of this study is to provide a comparative analysis of Seattle BIAs. This analysis describes the formation, organizational structure, geographic size, budget size, and service programming of each BIA in Seattle. In addition, this thesis also briefly assesses the accountability, the democratic nature, and the potential …
Landscape Genetics Of The American Badger: Understanding Challenges In Elusive Species, Elizabeth Marie Kierepka
Landscape Genetics Of The American Badger: Understanding Challenges In Elusive Species, Elizabeth Marie Kierepka
Theses and Dissertations
American badgers are one of the most poorly understood carnivores in North America due to their highly elusive, semifossorial lifestyle. To complicate understanding their biology further, badgers possess life history characteristics that predict radically different responses to habitat heterogeneity. In particular, they are considered grassland specialists, so their movement and population viability could be highly dependent on grassland habitats. Badgers are also highly mobile, which suggests they experience high gene flow. Predicting how these life history traits impact gene flow, however, is difficult based on the high diversity in responses to landscape heterogeneity among carnivores. To assess how landscape heterogeneity …
Utilizing Landsat Tm And Oli In Predicting Oncomelania Hupensis Habitats Around Poyang Lake Before And After Three Gorges Dam Completion, Stephanie L. Mccracken
Utilizing Landsat Tm And Oli In Predicting Oncomelania Hupensis Habitats Around Poyang Lake Before And After Three Gorges Dam Completion, Stephanie L. Mccracken
Honors Theses
Schistosomiasis is a parasitic disease caused by the Schistomsoma japonicum flatworm that utilizes the Oncomelania hupensis snail as an intermediate agent. In the People’s Republic of China, these amphibious snails contaminate freshwater systems infecting humans, bovines, and other mammals and have caused significant morbidity for over two thousand years (Wertheim, et al. 2012; Zhang, et al. 2012.) The gravity of this disease prompted the national government to initiate sizable public health programs, such as the World Bank Loan Project (WBLP.) In spite of WBLP's achievements, in 2004, after this program ended, a national survey acknowledged a resurgence of schistosomiasis in …
Applications Of A New Geodata Crawler For Landscape Ecology: From Mapping Natural Stream Hydrology To Monitoring Endangered Beetles, Douglas Ryan Leasure
Applications Of A New Geodata Crawler For Landscape Ecology: From Mapping Natural Stream Hydrology To Monitoring Endangered Beetles, Douglas Ryan Leasure
Graduate Theses and Dissertations
An investigation of endangered American burying beetle (Nicrophorus americanus) ecology led to development of a Geodata Crawler with applications in eco-hydrology. Geodata Crawler includes a national GIS (geospatial information systems) database with layers that quantify climate, land cover, soils, human development, and other attributes of the biosphere. For user-locations in the continental United States, Geodata Crawler can rapidly tabulate site-specific statistics within automatically delineated sample areas: points, site radii, watersheds, and riparian zones, among others. Geodata Crawler supported a multi-scale analysis of N. americanus habitat at a military installation in western Arkansas to produce a Landsat-based monitoring tool. Royle's N-mixture …
Geographic Assessment Of The Perception Of Nature Reserves And National Parks In Kuwait, Meshari S. Alenezi
Geographic Assessment Of The Perception Of Nature Reserves And National Parks In Kuwait, Meshari S. Alenezi
Graduate Theses and Dissertations
The Arabian Gulf countries have passed strict laws to preserve their environment. Kuwait has a strong history with preserving natural areas. The ecological value and richness of Kuwait's ecosystems have increased since the nature reserves were built. This research has evaluated the perceptions that Kuwaitis have of the design, creation, and development of nature reserves in Kuwait. It involved the use of survey instruments (questionnaires) and interviews with respondents of both urban and rural communities. Data from these surveys and interviews analyzed regarding perceptions of nature reserves' needs, sizes, functions, and future plans.
The results of examinations (surveys) demonstrate that …
Spatial Analysis Of Chipped Stone At The Cypro-Ppnb Site Of Krittou Marottou Ais Giorkis: A Gis-Assisted Study, Levi Lowell Keach
Spatial Analysis Of Chipped Stone At The Cypro-Ppnb Site Of Krittou Marottou Ais Giorkis: A Gis-Assisted Study, Levi Lowell Keach
UNLV Theses, Dissertations, Professional Papers, and Capstones
Krittou Marottou Ais Giorkis (`Ais Giorkis) is an Aceramic Neolithic site, occupied approximately 9,500 cal B.P., and located in the western foothills of the Troodos Mountains on the Mediterranean island of Cyprus. This thesis is an intra-site spatial analysis of the chipped stone assemblage recovered between 1997 and 2013 from the site using Geographic Information Systems (GIS) technology. Previous work on the assemblage from 1997 through 2004 had attempted spatial analysis using traditional statistical methods and found no patterning (O'Horo 2008). Using the expanded database and GIS this thesis identifies multiple spatial patterns in the assemblage with implications on the …
Recreational Risk Assessment Using Geospatial Analyses On Beaver Lake, Arkansas, Laura Ahrens
Recreational Risk Assessment Using Geospatial Analyses On Beaver Lake, Arkansas, Laura Ahrens
Graduate Theses and Dissertations
Accidents and deaths occur regularly on lakes and waterways due to natural phenomena as well as human error and recreation. People use lakes and waterways as sources of recreation, but do not always act responsibly on the water. During summer 2013 and winter 2014, over 100 surveys were administered in Beaver Lake, Arkansas to local and federal agencies regarding their knowledge and perception on accident locations and causes. These surveys were conducted in English and approved by the university after being tested on peers. The surveys included demographic data sex, income, education, as well as Likert-scaled responses. Research was also …
A Vegetation Analysis On Horn Island, Mississippi, Ca. 1940 Using Characteristic Dimensions Derived From Historical Aerial Photography, Guy Wilburn Jeter Jr.
A Vegetation Analysis On Horn Island, Mississippi, Ca. 1940 Using Characteristic Dimensions Derived From Historical Aerial Photography, Guy Wilburn Jeter Jr.
Master's Theses
Horn Island is part of the MS/AL barrier island chain in the northern Gulf of Mexico located approximately 18kn off the coast of Mississippi. This island’s habitats have undergone many transitions over the last several decades. The goal of this study was to quantify habitat change over a seventy year period using historical black and white photography from 1940. Using present NAIP imagery from the USDA, habitat structure was estimated by using geo-statistics, and second order statistics, from a co-occurrence matrix, to characterize texture for habitat classification. Percent land cover was then calculated to determine overall land cover change over …
Integrating Social Media In The Development Of A Special Event Population Dynamics Model, Kelly Michelle Sims
Integrating Social Media In The Development Of A Special Event Population Dynamics Model, Kelly Michelle Sims
Masters Theses
With society’s increasing participation in social media, scientists now have access to new sources of data that reflect our daily activities in space and in time. Such data are plentiful and, more notably, at an unprecedented granular level. The ability for users to capture and express their geolocation through their phones’ global positioning system (GPS) or through a particular location’s hashtag or Facebook Page provides a great opportunity for modeling spatiotemporal population dynamics. High resolution population models and databases for episodic special events can be extremely useful for enhancing emergency management and response. This research assesses the feasibility of improving …
International Student Migration For Development: An Institutional Approach To The Norwegian Quota Scheme, Scott Eric Basford
International Student Migration For Development: An Institutional Approach To The Norwegian Quota Scheme, Scott Eric Basford
Masters Theses
This paper addresses a call to acknowledge the varied actors that are involved in international student migration (ISM). In particular, this paper takes an institutional approach to investigate international education as a form of development aid. Research on ISM often omits non-student actors, which contributes to an incomplete understanding of the process. I study the Norwegian Quota Scheme to explore broader mechanisms of ISM. I first situate the Quota Scheme within literature on the internationalization of higher education and international education as development aid. I then use 26 interviews with 31 stakeholders at multiple scales of involvement in the Quota …
Dendrogeomorphic Analysis Of Debris Slides On Mt. Le Conte, Great Smoky Mountains National Park, Tennessee, U.S.A., Maegen Lee Rochner
Dendrogeomorphic Analysis Of Debris Slides On Mt. Le Conte, Great Smoky Mountains National Park, Tennessee, U.S.A., Maegen Lee Rochner
Masters Theses
Research conducted during the past 30 years tested the use of tree rings to date mass movement events in the mountain areas of Europe and the western and southwestern United States, but few studies have been performed in the eastern U.S., where debris flows, landslides, and rock falls in the Appalachian Mountains pose a common threat to human life and property. One area of particular interest is Great Smoky Mountains National Park (GSMNP). For this study, I tested mature red spruce (Picea rubens Sarg.) trees located on or near a debris slide boundary on Mt. Le Conte (LC01) in …
Using Gis To Prioritize Green Infrastructure Installation Strategies In An Urban Watershed, Lauren Owen
Using Gis To Prioritize Green Infrastructure Installation Strategies In An Urban Watershed, Lauren Owen
All Theses
This study seeks to quantify runoff volume generation and peak flow rates from the urban Sand River Headwaters to determine the most effective placement of additional green infrastructure in Aiken, SC. ArcMap 10.1, HEC-GeoHMS, and HEC-HMS were used to delineate a total outlet watershed along with subwatershed(s) for urban stormwater infrastructure system by 'burning' the stormwater system at an artificial elevation below the existing topologically-based Digital Elevation Model (DEM). The result was a higher resolution DEM that allowed for storm routing and subsequent volume and flow predictions compared to that based on the original DEM created by using Light Detecting …
Multivariate Spatial Visualization Using Geoicons And Image Charts, Bo Shan
Multivariate Spatial Visualization Using Geoicons And Image Charts, Bo Shan
Electronic Thesis and Dissertation Repository
Spatial databases are growing in size and complexity, yet current visual data mining methods are challenged when it comes to multivariate spatial data. The specific research question addressed in this thesis is: how can spatial multivariate data be effectively visualized using an icon based non-fused co-visualization approach? The thesis presents a Python based design and implementation of a visualization program termed GeoIcon Viewer. The program incorporates two different visualization methods: GeoIcon Image Map and Region-of-Interest Image Layers Chart. The GeoIcon Image Map technique uses an icon to co-visualize up to nine attributes at a single location. The Region-of-Interest Image …