Geography Commons^™

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

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 …

Tradition Or Technology?: The Impact Of Paper Versus Digital Map Technology On Students’ Spatial Thinking Skill Acquisition, Larianne Collins

Theses and Dissertations

This dissertation investigates whether spatial learning outcomes differ with respect to different instructional media. Specifically, it examines traditional, paper aerial imagery as compared to digital imagery visualized with 3D globes. Two research questions provided the focus: 1) Does spatial thinking skill development differ between analog (paper) and digital map media; 2) Does spatial thinking skill development differ based on attitudes toward geography, past travel experience, or demographic variables such as gender, and are there interaction effects among them related to the different media?

Spatial thinking skill development was measured as students received instruction using either paper or digital maps. Spatial …

A Comprehensive Disaster Risk Index For The United States, Michael E. Senn

Theses and Dissertations

Risks to life, property, infrastructure and even environmental security emanate from a variety of hazard sources. Key to reducing this risk is the ability to measure it and present it decision-makers and stakeholders in a meaningful and understandable way. Currently, there exist no comprehensive hazard risk indices for the United States that have the ability to capture and convey a contemporary conceptualization of risk to hazards. Such an index, the World Risk Index, exists at the global level. The World Risk Index serves as an analog for further research on risk at various scales.

The purpose of this dissertation is …

Teachers’ Perceptions Of Esri Story Maps As Effective Teaching Tools, Caitlin Strachan

Theses and Dissertations

The purpose of this study was to explore teachers’ perceptions of Esri Story Maps as effective teaching tools. Story Maps are a relatively new web application within Esri’s web-based GIS platform, ArcGIS Online. They combine digitized, dynamic maps with other story elements (i.e., title, text, legend, popups, and other visuals) to help the creator effectively convey a message. The relative ease associated with using and creating a Story Map as well as the simple, non-technical interface makes them ideal for use as an educational technology. Survey data were collected at several professional development events in the spring of 2014 in …

Potential Of X-Band Images From High-Resolution Satellite Sar Sensors To Assess Growth And Yield In Paddy Rice, Yoshio Inoue, Eiji Sakaiya, Cuizhen Wang

Faculty Publications

The comprehensive relationship of backscattering coefficient (σ⁰) values from two current X-band SAR sensors (COSMO-SkyMed and TerraSAR-X) with canopy biophysical variables were investigated using the SAR images acquired at VV polarization and shallow incidence angles. The difference and consistency of the two sensors were also examined. The chrono-sequential change of σ⁰ in rice paddies during the transplanting season revealed that σ⁰ reached the value of nearby water surfaces a day before transplanting, and increased significantly just after transplanting event (3 dB). Despite a clear systematic shift (6.6 dB) between the two sensors, the differences in σ …

Comparison Of Ground-To-Air Visibility Analysis Methods, Erica Pfister-Altschul

Theses and Dissertations

When a disaster occurs, remotely sensed imagery is critical for emergency responders. Aircraft collect digital images of damaged areas to assist with damage assessment and response planning. Such airborne imagery can be transmitted directly from the plane to ground antennae and internet-connected dispersal, allowing for faster acquisition of data. However, air-to-ground transmission of images requires near-constant visibility between the aircraft transmitter and ground station antenna. This research uses GIS-based models to identify the ground station locations that can reliably receive data from aircraft, using a variety of visibility analysis methods and a comparison of their performance. A custom algorithm is …

Birds And Beaches: The Affective Geographies And Sense Of Place Of Participants In The Coasst Citizen Science Program, Benjamin Kent Haywood

Theses and Dissertations

Participatory science research initiatives within the natural sciences like citizen science or crowd sourcing have enjoyed a recent explosion in popularity due to the efficient and expansive data collection processes they foster and the opportunities for general science outreach and education they provide. Now often the tool of choice among informal science outreach practitioners, Public Participation in Scientific Research (PPSR) programs are purported to expand knowledge and understanding of science and ecology, increase the relevancy of science for society, and cultivate more environmentally sustainable attitudes and behaviors. Despite such claims, the influence and impact of participatory science engagement is still …