Geography Commons^™

Sentinel-1 Slc Processing: Summer Internship With Clark Labs, Lei Tang

Sustainability and Social Justice

My summer internship with Clark Labs was mainly focused on technological and methodological exploration of Sentinel-1 SLC data, under the direct supervision of James Toledano. The main responsibilities of my internship were understanding theory and science behind Sentinel-1, utilizing the SNAP toolbox to determine the proper imagery processing steps in order to distinguish the land structure clearly. 36 testing on different combination of acquisition modes, speckle filters and time gap were conducted during that time.

I would highly recommend this internship to other GISDE students. The dynamic nature of the GISDE program provides students with the opportunity to be able …

Agro Sí, Mina No: Explaining The Onset Of Protest Surrounding Mining Projects In Peru, Jhader Aguad

Political Science Honors Projects

Peru has witnessed an increase in protest activity over the past decade, seemingly related to natural resource extraction. Yet protests were more prevalent in some provinces than others. What explains this variation? I hypothesize that a mining company's announcement of the creation or advancement of a project has a greater effect on the likelihood and frequency of protest if local people rely more on agriculture. Analyzing an original dataset on Peruvian protests between 2011 and 2015, I find the reverse: Protests are less prevalent when mining projects occur in agricultural provinces, suggesting challenges to collective action in rural areas in …

Optimizing Stadium Evacuation By Integrating Geo-Computation And Affordance Theory, Joslyn Jane Zale

Dissertations

The purpose of this project was to optimize football stadium evacuation time by integrating geo-computation with affordance theory from perceptual psychology to account for evacuee characteristics: age, gender, physical fitness, alcohol consumption, and prior experience attending football games at The University of Southern Mississippi (USM), evacuating from large, outdoor public places, and with hazard events.

According to the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism (USA PATRIOT) Act, football stadiums are part of the country’s critical infrastructure warranting special government protection. Evacuation modeling was identified as an important component of game day emergency …

Impacts Of Thermal Time On Land Surface Phenology In Urban Areas, Cole Krehbiel, Xiaoyang Zhang, Geoffrey Henebry

GSCE Faculty Publications

Urban areas alter local atmospheric conditions by modifying surface albedo and consequently the surface radiation and energy balances, releasing waste heat from anthropogenic uses, and increasing atmospheric aerosols, all of which combine to increase temperatures in cities, especially overnight, compared with surrounding rural areas, resulting in a phenomenon called the “urban heat island" effect. Recent rapid urbanization of the planet has generated calls for remote sensing research related to the impacts of urban areas and urbanization on the natural environment. Spatially extensive, high spatial resolution data products are needed to capture phenological patterns in regions with heterogeneous land cover and …

Examination Of The Potential Of Terrestrial Laser Scanning And Structure-From-Motion Photogrammetry For Rapid Nondestructive Field Measurement Of Grass Biomass, Sam D. Cooper, David P. Roy, Crystal B. Schaaf, Ian Paynter

GSCE Faculty Publications

Above ground biomass (AGB) is a parameter commonly used for assessment of grassland systems. Destructive AGB measurements, although accurate, are time consuming and are not easily undertaken on a repeat basis or over large areas. Structure-from-Motion (SfM) photogrammetry and Terrestrial Laser Scanning (TLS) are two technologies that have the potential to yield precise 3D structural measurements of vegetation quite rapidly. Recent advances have led to the successful application of TLS and SfM in woody biomass estimation, but application in natural grassland systems remains largely untested. The potential of these techniques for AGB estimation is examined considering 11 grass plots with …

The Passage Of The 2016 Ballot Question #3 In Massachusetts And Its Implications, Hannah Silverfine

Sustainability and Social Justice

In the 2016 Massachusetts primary election, ballot question #3, “Massachusetts Minimum Size Requirements for Farm Animal Containment”, aimed to improve welfare standards for cows raised for veal, female sows confined to gestation crates, and chickens caged for eggs. This study seeks to analyze the complex relationship between local and national food systems, and articulate the multi-level implications of Question 3. Research examines the rationale behind voting, campaign narratives, and campaign financing in Massachusetts, and ultimately compares the implications of Question 3 with those of California’s 2008 Prevention of Farm Animal Cruelty Act. The lenses of animal geographies and the political …

Geoscientists-In-The-Park Summer Internship Mapping Shoreline Change With The National Park Service, Michael P. Endicott

Sustainability and Social Justice

This project paper details the activities carried out as a Geologist/GIS Specialist in the Gateway National Recreation Area as a part of the Geoscientists-In-The-Park internship program. The focus of this position was on supporting the geomorphological monitoring efforts of the National Park Service. This was accomplished through a combination of field data collection, GIS analysis, report writing, and project work. By the end of the internship, substantial progress was made to the formation of Gateway’s Annual 1D and 2D report for 2015-2016, field data were collected for the 2016 summer season, changes in geomorphology were explored and summarized for the …

No. 10: The Hungry Cities Food Purchases Matrix: A Measure Of Urban Household Food Security And Food System Interactions, Jonathan Crush, Cameron Mccordic

Hungry Cities Partnership

Recent theoretical work has suggested that urban food security is the result of food system interactions. This work highlights the challenge of assessing household-level food insecurity and relating it to the broader food system. One priority is to develop food security metrics that incorporate household interactions with the food system retail environment. The Hungry Cities Food Purchases Matrix (HCFPM) is one such metric that has been developed for situating household food sourcing behaviour within the urban food system. The matrix has been successfully administered in a number of cities in the Global South by the Hungry Cities Partnership. This paper …

The Fight Against Botanical Invaders: Summer Internship With The Montana Conservation Corps And The U.S. Forest Service, Bryan S. Buttigieg

Sustainability and Social Justice

This paper aims to synthesize and reflect upon my internship with the Montana Conservation Corps, and the U.S. Forest Service during the summer of 2016. The primary responsibilities as an intern under the USFS’s Vegetation Manager included eradicating and monitoring invasive weeds within the Hebgen Lake Ranger District, in West Yellowstone, MT. I gained a wealth of knowledge on how invasive plants take control of landscapes throughout Montana specifically. This opportunity provided me with the chance to develop both hands-on and GIS-based conservation efforts. The following chapters review my summer internship by diving deeper into the structural organization of the …

Development Of A Multiband Remote Sensing System For Determination Of Unsaturated Soil Properties, Cyrus D. Garner

Graduate Theses and Dissertations

A multiband system including active microwave sensing and visible-near infrared reflectance spectroscopy was developed to measure unsaturated soil properties in both field and laboratory environments. Remote measurements of soil volumetric water content (θv), soil water matric potential (ψ), and soil index properties (liquid limit [LL], plastic limit [PL], and clay fraction [CF]) were conducted. Field-based measurement of θv was conducted using a ground-based radar system and field measurements within 10 percentage points of measurements acquired with traditional sampling techniques were obtained. Laboratory-based, visible and near infrared spectroscopy was found to be capable of obtaining empirical, soil specific regression functions (partial …

The Spatial Ordering Of Nabataea: An Integrated Analysis Of The Geography, Architecture, And Morphology Of Nabataean Petra, Christopher Clifton Angel

Graduate Theses and Dissertations

The Nabataean city of Petra is well known for its sandstone architecture and rock-hewn funerary landscape. Over the last few decades, numerous studies examined their history, culture, art, and architecture. The few studies that assessed the urban space of Petra focused on the functional properties of individual architectural forms and their nominal placement within the overall landscape. This study focused on the spatial configurations of architecture as relational to the dynamics of Nabataean politics and ritual where shifts in social order manifested similar shifts in spatial order which in turn produced and reproduced forms of social order. The production of …

Spatial Variability Of Seedling Disease Pressure In Cotton Fields, Kyle Douglas Wilson

Graduate Theses and Dissertations

Seedling diseases are important factors in cotton stand establishment, and seedling disease pathogens are widespread in fields in Arkansas. Little is known about the variability of seedling disease pressure within fields. With expanded adoption of site-specific management and other precision agriculture approaches, cotton producers are increasingly interested in predicting seedling disease pressure, particularly in spatially variable fields. The cotton seedling disease pathogens include the soilborne pathogens Thielaviopsis basicola, Rhizoctonia solani, Pythium spp., and Fusarium spp. These pathogens can survive in soil for long periods and, and when the environment is conducive, these pathogens can act individually or in combination to …

The Role Of Sulfur Dioxide In Stratospheric Aerosol Formation Evaluated By Using In Situ Measurements In The Tropical Lower Stratosphere, A. W. Rollins, T. D. Thornberry, L. A. Watts, P. Yu, K. H. Rosenlof, M. Mills, E. Baumann, F. R. Giorgetta, T. V. Bui, M. Höpfner, P. F. Bernath

Chemistry & Biochemistry Faculty Publications

Stratospheric aerosols (SAs) are a variable component of the Earth's albedo that may be intentionally enhanced in the future to offset greenhouse gases (geoengineering). The role of tropospheric-sourced sulfur dioxide (SO₂) in maintaining background SAs has been debated for decades without in situ measurements of SO₂ at the tropical tropopause to inform this issue. Here we clarify the role of SO₂ in maintaining SAs by using new in situ SO₂ measurements to evaluate climate models and satellite retrievals. We then use the observed tropical tropopause SO₂ mixing ratios to estimate the global flux of …

Sacral Variability In Tailless Species: Homo Sapiens And Ochotona Princeps, Robert G. Tague

Faculty Publications

Homo sapiens is variable in number of sacral vertebrae, and this variability can lead to obstetrical complication. This study uses the comparative method to test the hypothesis that sacral variability in H. sapiens is associated with absence of a tail. Three species of lagomorphs are studied: Ochotona princeps (N = 271), which is tailless, and Lepus californicus (N = 212) and Sylvilagus audubonii (N = 206), which have tails. Results show that O. princeps has (1) higher diversity index for number of sacral vertebrae (0.49) compared to L. californicus (0.25) and S. audubonii (0.26) and (2) significantly higher percentage of …

A Retro Development In Education: Evaluating The Feasibility Of Integrating Place-Based Education Into Mississippi Curriculum Standards, Colby K. Mcclain

Honors Theses

This thesis evaluates the feasibility of integrating place-based environmental education activities from Think Green, Take Action: Books and Activities for Kids into the Mississippi Department of Education’s (MDE) Frameworks for Science and Social Studies for K-5. As children develop and experience the world, their ability to understand and interpret the surrounding environments expand; however, Mississippi schools are not focused on experiential environmental education, even though experiencing and understanding the surrounding environment is vital in fostering eagerness to learn. Due to a growing disconnect between humans and the natural world, this thesis examined 37 place- and environment-based activities for children, sixteen …

Impact Of High-Resolution Topographic Mapping On Beach Morphological Analyses Based On Terrestrial Lidar And Object-Oriented Beach Evolution, Xuelian Meng, Xukai Zhang, Rodolfo Silva, Chunyan Li, Lei Wang

Faculty Publications

This research applied terrestrial LiDAR for laboratory beach evolution experiments to quantify the impact of resolution on topographic mapping and change analyses. The multi-site registration and multi-Temporal scanning processes produced high accuracy (-0.002 - 0.003 m) topographic models in a wave tank environment. Morphological analyses based on surface change and profiles showed that models of all resolutions were capable of capturing major sediment changes in relatively smooth areas. However, higher resolution models were necessary in areas with rough surfaces and sudden elevation changes, while coarser resolution models smoothed the roughness and underestimated feature height (e.g., peaks and troughs). Decreasing resolutions …

Assessing Landslide Susceptibility With Gis Using Qualitative And Quantitative Methods In Knox County, Nebraska, Christian J. Cruz

Department of Geography: Dissertations, Theses, and Student Research

This thesis assesses landslide susceptibility using data from LiDAR DEMs, land cover, and soil surveys. Data were assessed quantitatively through Bayesian logistic regression within a geographic information system (GIS) and statistical software to produce a landslide susceptibility map. The study area exhibits moderate relief where bluffs along the Missouri River valley gradually recede into rolling loess-mantled hills further to the south and southeast in Knox County. The six factors used to determine susceptibility to landslides are: land cover, parent material, slope aspect, slope curvature slope degree, and soil series. My findings show an increase in slope is the most significant …

Dynamic Nearest Neighbor Queries In Euclidean Space, Sarana Nutanong, Mohammed Eunus Ali, Egemen Tanin, Kyriakos Mouratidis

Research Collection School Of Computing and Information Systems

Given a query point q and a set D of data points, a nearest neighbor (NN) query returns the data point p in D that minimizes the distance DIST(q,p), where the distance function DIST(,) is the L₂norm. One important variant of this query type is kNN query, which returns k data points with the minimum distances. When taking the temporal dimension into account, the k NN query result may change over a period of time due to changes in locations of the query point and/or data points.

Environmental And Climatic Constraints On Large-Scale Camelina Production In Eastern Arkansas, Benjamin Robert Tracy

Graduate Theses and Dissertations

Camelina sativa is a cold weather crop that is typically grown in semi-arid environments in the Western United States, usually as a spring crop, but sometimes during the winter. Research analyzing climate data and soil hydrology is important to better understand the environmental and terrain conditions necessary for Camelina farming wherever it is proposed for large-scale production. This study focused on various conditions and constraints pertaining to the potential for Camelina as a crop biofuel in Eastern Arkansas. Due to interest in the economic potential of crop biofuels in this area, and in particular the low input costs for Camelina, …

Progressive Education In Appalachia: East Tennessee State Normal School And Appalachian State Normal School, Holly Heacock

Undergraduate Honors Theses

In this thesis, I am examining how East Tennessee State Normal School in East Tennessee and Appalachian State Normal School in Western North Carolina interpreted progressive education differently in their states. This difference is that East Tennessee State began as a state funded school to educate future teachers therefore their school and their curriculum was more rounded and set to a structured schedule. Appalachian State Normal School was initially founded to educate the uneducated in the “lost provinces” therefore, curriculum was even more progressive than East Tennessee State’s – based strongly on the practices of farming, woodworking, and other practical …