Geography Commons^™

Optimizing Automated Kriging To Improve Spatial Interpolation Of Monthly Rainfall Over Complex Terrain, Matthew P. Lucas, Ryan J. Longman, Thomas W. Giambelluca, Abby G. Frazier, Jared Mclean, Sean B. Cleveland, Yu Fen Huang, Jonghyun Lee

Geography

Gridded monthly rainfall estimates can be used for a number of research applications, including hydrologic modeling and weather forecasting. Automated interpolation algorithms, such as the "autoKrige" function in R, can produce gridded rainfall estimates that validate well but produce unrealistic spatial patterns. In this work, an optimized geostatistical kriging approach is used to interpolate relative rainfall anomalies, which are then combined with long-term means to develop the gridded estimates. The optimization consists of the following: 1) determining the most appropriate offset (constant) to use when log-transforming data; 2) eliminating poor quality data prior to interpolation; 3) detecting erroneous maps using …

Slow Violence And Racial Capitalism: Understanding Mass Incarceration Through A Case Study Of The California Prison System, Mason Joiner

Senior Theses

This thesis will analyze the growth of the California prison system, situating it in the national context of mass incarceration in the United States. In Ruth Wilson Gilmore’s book Golden Gulag: Prisons, Surplus, Crisis, and Opposition in Globalizing California, Gilmore utilizes the theory of racial capitalism to explain the history and development of the California prison system. By analyzing Gilmore’s arguments about racial capitalism and integrating them with Rob Nixon’s theory of slow violence from his book Slow Violence and the Environmentalism of the Poor, this thesis provides a new perspective in the current discourse around mass incarceration. …

The Relationship Between Eviction, Rent Burden, And Poor Births In Kalamazoo County, Michigan, Joseph Agati

Masters Theses

Millions of Americans get evicted every year, with thousands coming from Kalamazoo County, Michigan alone. Additionally, many more live with rent burden, paying over 30% of their monthly income on rent. Both eviction and rent burden have been linked to adverse health effects, such as depression and anxiety, and negative coping mechanisms, such as alcoholism and smoking. This study asks if eviction and rent burden are correlated with poor births in Kalamazoo County as there are hundreds of poor births in the county every year, as well as which social vulnerability themes are most predictive of eviction and poor births. …

Maritime Moves: The American Response To The South China Sea Conflict, Joshua Jachlewski

Senior Honors Theses

China is quickly becoming a world power and will soon reach parity with the United States. China has gotten far more aggressive in its expansion, which extends to the islands within the South China Sea. China claims most of this based on the Nine-Dash Line, in violation of the United Nations Convention on the Law of the Sea. As the current world superpower, the United States must respond to these claims given the geostrategic importance of the region. An analysis of the current Chinese and US positions, as well as those of the other littoral states with competing claims, allows …

Urban Forest Dynamics: Untangling Ecosystem Patterns At Harbison State Forest, Derek Matchette

Theses and Dissertations

As expansion continues to push the wildland-urban interface farther into the suburbs and the landscape which surrounds cities, it will become more important to understand the factors that influence species composition in remaining green spaces. Harbison State Forest, an ~890-hectare urban forest provides a convenient setting to analyze species composition patterns within a multipurpose urban green space.

The factors that can create these patterns include environmental (topography, soil nutrient content, light, temperature, and precipitation), naturally occurring disturbances that alter these factors (e.g., fire, windthrow), and anthropogenic disturbances such as logging and prescribed burning.

I measured basal area by species on …

Life In The Time Of Covid-19: The Everyday Impacts Of The Pandemic In Amman, Jordan, Patrick Mckenzie

Theses and Dissertations

The COVID-19 pandemic and the responses taken to combat it caused enormous changes to the everyday lives of people around the world. Jordan, in its early success against the virus and with its large refugee population, represents a unique country in which to study these everyday impacts. From May to August of 2021, I conducted ethnographic fieldwork in the Jordanian capital city of Amman while working with the refugee nongovernmental organization the Collateral Repair Project. In this thesis, I explore the COVID-19 Spectacle, examining the ways in which policies and discourses at the national and international scales bled into the …

An Analysis Of Wet Bulb Globe Temperature Estimation Methods And Microclimate Heat Variability In Columbia, South Carolina, Stafford Mullin

Theses and Dissertations

Extreme heat is the leading cause of weather-related deaths in the United States and poses major health risks in the wake of rising global average temperatures. Wet bulb globe temperature (WBGT) is a holistic measure of human heat stress, but is not feasible to implement in most settings because the equipment is expensive and troublesome to operate. This research evaluates the performance of WBGT estimation methods using more standard meteorological variables, measured in-situ and a local National Weather Service Automated Surface Observing Station, and examines how WBGT and its components vary across two distinct microclimates in Columbia, SC. Results indicate …

Capital City Ventures Towards An Equitable Clean Energy Transition: A Case Study Comparison Between Columbia, South Carolina And Richmond, Virginia, Claire Windsor

Senior Theses

Combatting climate change requires a rapid transition to renewable sources for energy generation. In the United States, the electricity sector alone accounts for 28% of greenhouse gas emissions (28%), with about 63% of electricity generation derived from burning of fossil fuels (EPA, 2020). In order to lower greenhouse emissions from the energy sector, federal, state, and local policies must pave the way for renewable energy and energy efficiency innovations and policies. However, political action to address the effects and combat the causes of climate change have been limited due to political gridlock at the federal level. In addition, under neoliberalism, …

Suas And Deep Learning For High-Resolution Monitoring Of Tidal Marshes In Coastal South Carolina, Grayson R. Morgan

Theses and Dissertations

Tidal marshes are dynamic environments, now more than ever threatened by both natural and anthropogenic forces. Best practices for monitoring tidal marshes, as well as the environmental factors that affect them, have been studied for more than 40 years. With recent technological advances in remote sensing, new capabilities for monitoring tidal marshes have emerged. One of these new opportunities and challenges is hyper-spatial resolution imagery (<10 >cm) that can be captured by small unmanned aerial systems (sUAS). Aside from enhanced visualization, structure-from-motion (SfM) technology can derive dense point clouds from overlapped sUAS images for high resolution digital elevation models (DEMs). …

Tradeoffs And Synergies Across Global Climate Change Adaptations In The Food‐Energy‐Water Nexus, Sarah Torhan, Caitlin A. Grady, Idowu Ajibade, Eranga K. Galappaththi, Rebecca R. Hernandez, Justice I. Musah‐Surugu, A. M. Nunbogu, A. C. Segnon, Multiple Additional Authors

Geography Faculty Publications and Presentations

Food-energy-water (FEW) systems are increasingly vulnerable to natural hazards and climate change risks, yet humans depend on these systems for their daily needs, wellbeing, and survival. We investigated how adaptations related to FEW vulnerabilities are occurring and what the global community can learn about the interactions across these adaptations. We conducted a global analysis of a data set derived from scientific literature to present the first large scale assessment (n = 1,204) of evidence-based FEW-related climate adaptations. We found that the most frequently reported adaptations to FEW vulnerabilities by continent occurred in Africa (n = 495) and Asia (n = …

Extreme Development Of Dragon Fruit Agriculture With Nighttime Lighting In Southern Vietnam, Shenyue Jia, Son V. Nghiem, Seung-Hee Kim, Laura Krauser, Andrea E. Gaughan, Forest R. Stevens, Menas Kafatos, Khanh D. Ngo

Institute for ECHO Faculty Books and Book Chapters

Dragon fruit is widely grown in Southeast Asia and other tropical or subtropical regions. As a high-value cash crop ideal for exportation, dragon fruit cultivation has boomed during the past decade in southern Vietnam. Light supplementing during the winter months using artificial lighting sources is a widely adopted cultivation technique to boost productivity in the major dragon fruit planting regions of Vietnam. The application of electric lighting at night leads to a significant increase of nighttime light (NTL) observable by satellite sensors. The strong seasonality signal of NTL in dragon fruit cultivation enables identifying dragon fruit plantations using NTL images. …

Race-Ethnic Population Changes In Mountain West Metros, 2010-2020, Joshua Padilla, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr.

Demography

The 2020 census shows continuing nationwide trends in population growth when compared to the last decade. The growth of various race-ethnic groups across the country contribute to the diversification of the population in selected regions. Using the U.S. Census Bureau 2020 data prepared by William H. Frey of the Brookings Institution, this fact sheet focuses on the population changes in nine Mountain West metros.

Structural Problems Of Latin American Cities 450 Years After Caracas’ Foundation, Fabio Capra-Ribeiro

Faculty Publications

Latin American cities face many problems that compromise them from different angles such as lack of infrastructure, government fragmentation, and environmental degradation. At the same time, each city tries to come up with its own solutions, but there are so many difficulties that in many cases it is difficult to keep attention and efforts focused on all these directions. For these reasons, this research aims to define some of the most common problems faced by cities in Latin America. Disseminating these similarities could help to face those problems, since, if local governments recognize that they face the same situations as …

Geothermal Development In Kenya: Gender Based Socio-Cultural And Socio-Economic Implications, Faye N. Ricker

USF Tampa Graduate Theses and Dissertations

This dissertation is an ethnographic case study that analyzes the gendered socio-cultural and socio-economic implications for a community that was displaced in order to develop a geothermal energy system in Kenya. The implications are rendered particularly interesting because the displaced community is also one of the communities served by the geothermal power grid. The analysis employs a composite framework of Feminist Political Ecology and the Political Ecology of Climate Change Mitigation. This work explores gendered perceptions and control of energy, livelihood activities, place attachment, and the cultural/spiritual significance of geothermal energy.

Geothermal energy is a potentially promising source of low-carbon …

A Statistical Method For Quantifying Animal Interaction; Combining Time Geography And Simulation, Zachary J. Smith

USF Tampa Graduate Theses and Dissertations

Dynamic interaction (DI) describes the synchronous interaction of one or more individual animals over time. Current methods to quantify DI from tracking data are lacking. They typically require synchronized tracking data which limits their applicability to most studies. They also often do not have built-in tests of significance to evaluate interaction, and if so, rely on random walk models that lack biological realism. This research aimed to develop and evaluate a new way of measuring animal interaction that overcomes these limitations. The goal was to create a statistical method for quantifying and evaluating interaction that is relevant across computational, behavioural, …

Global Gnss-Ro Electron Density In The Lower Ionosphere, Dong L. Wu, Daniel J. Emmons Ii, Nimalan Swarnalingam

Faculty Publications

Lack of instrument sensitivity to low electron density (N_e) concentration makes it difficult to measure sharp N_e vertical gradients (four orders of magnitude over 30 km) in the D/E-region. A robust algorithm is developed to retrieve global D/E-region N_e from the high-rate GNSS radio occultation (RO) data, to improve spatiotemporal coverage using recent SmallSat/CubeSat constellations. The new algorithm removes F-region contributions in the RO excess phase profile by fitting a linear function to the data below the D-region. The new GNSS-RO observations reveal many interesting features in the diurnal, seasonal, solar-cycle, and magnetic-field-dependent variations in the …

Illustrating Ensemble Predictability Across Scales Associated With The 13–15 February 2019 Atmospheric River Event, Chad W. Hecht, Allison C. Michaelis, Andrew C. Martin, Jason M. Cordeira, Forest Cannon, F. Martin Ralph

Geography Faculty Publications and Presentations

The “Valentine’s Day” atmospheric river (AR) event that affected a majority of California during 13–15 February 2019 ranked as an AR3 (Ralph et al. 2019) along most of the California coast and reached AR4 intensity in Southern California. The strong onshore flow and dynamically favorable characteristics of the Valentine’s Day AR produced both an intense and long-duration precipitation event resulting in widespread hydrometeorological impacts across California. Palomar Observatory in northern San Diego County observed >10 in. (>254 mm) of precipitation in 24 h, the highest 24-h accumulation since record keeping began in 1943 (Hatchet et al. 2020

The Grand Ethiopian Renaissance Dam And Egypt’S Water Security, Farah Khayry

The Undergraduate Research Journal

The Nile River is the backbone of Egypt. Egypt’s dry climate, lack of alternative water sources, and scarce rainfall and arable land intensify its reliance on the Nile River. In fact, the Nile River provides Egyptians with 97% of the available fresh water. Currently, Egypt is experiencing a rising water deficit due to wasteful water irrigation and consumption, global warming, and rapid population growth. The Egyptian population is increasing at an annual rate of two percent, creating a rising demand on the already dwindling Nile water supply. Another threat to the Egyptian Nile water supply is the Grand Ethiopian Renaissance …

Social Production And Consumption Of Space: A Lefebvrian Analysis Of The Kumbh Mela, Christine Buzinde, David Manuel-Navarrete, Jyotsna (Josi) M. Kalavar, Neena Kohli

International Journal of Religious Tourism and Pilgrimage

Kumbh Mela is the world’s largest pilgrimage gathering on the shores of the River Ganges. Drawing on Lefebvre’s (1991) trialectics of space framework, this paper interrogates the spatial dynamics of the Kumbh Mela through the spatial meanings espoused by local and international pilgrims. Accounting for dominant discourses that frame the event as occurring in and around a sacred waterscape, five focus groups with pilgrims were conducted at the Kumbh Mela in Allahabad, India. The findings indicate that local pilgrims were aware of river pollution, but they used discursive strategies to decouple this material fact from their lived spiritual experiences; from …

The Effect Of Covid-19 On Independent African Churches (Iacs) In Johannesburg, South Africa, Constance Nyika, Milena Ivanovic, Kevin A. Griffin

International Journal of Religious Tourism and Pilgrimage

This paper explores the effect of the COVID-19 pandemic on the religious tourism activities of the four most prominent Independent Apostolic Churches (IAC) operating in Johannesburg, South Africa. This is an interpretive qualitative research study based on data from 15 telephone-based semi-structured interviews with congregants and church leaders of the Zion Christian Church, Zimbabwe (ZCC Mutendi), The Apostolic Church of Johane Marange, The Apostolic Church of Johane Masowe and Apostolic Faith Church, Mugodhi. Thematic content analysis was used for data analysis.

The COVID-19 pandemic has negatively impacted the religious tourism activities of all four IACs in the study as they …

Assessing Changes In Actual Air Quality And Public Perceptions Of Air Quality In Kathmandu Valley Nepal Pre And Post Covid-19 Lockdown, Robin Margherita Rives

USF Tampa Graduate Theses and Dissertations

Air pollution is a global concern. Cities around the world fail to meet air quality standards set by the World Health Organization Air Quality Guidelines, which has a significant impact on public health. As the capital city and largest metropolitan region of Nepal, Kathmandu is a hotspot for urban pollution in South Asia. Nepal faces emissions from both internal and external sources. External sources include emissions from Nepal’s neighboring countries of India and China and emissions resulting from tourism. Internal sources of pollution in the country include brick and cement factories, consumption of energy from traditional sources such as biomass, …

Application Of Pheromone Is Potential Ecological Approach In Management Of Tuta Absoluta In Tomatoes: The Case Of Ruaha River Basin In Iringa, Tanzania, Theonest Kombe, Nicodemus D. Matojo, Fikira Kimbokota

Journal of Humanities and Social Sciences

Tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), is currently considered to be one of the most destructive insect pests of tomatoes worldwide. The present study was conducted in three study sites along Ruaha River Basin, Iringa, Tanzania, to assess community awareness about T. absoluta infestation and its management. The study also evaluated the susceptibility of three tomato varieties against T. absoluta in a greenhouse setting, as well as the effect of colours of traps and doses of pheromone in attracting T. absoluta in a field environment. The field survey revealed that 97% of the respondents were aware of the …

“Fast Policy” And “Rule By Aesthetics”: A Preliminary Study Of Water Street Tampa –The “Worlding” Of An Aspiring “Icon Project”, Nousheen Rahman

USF Tampa Graduate Theses and Dissertations

In the age of “global urbanism” (Sheppard et al 2015; Chen and Kanna 2013), we are witnessing a markedly increased preference for mega-gentrification policies and projects by public officials seeking to revitalize deindustrialized and abandoned landscapes within their cities. The goal of this study is to describe how neoliberal public and private actors and institutions in the City of Tampa, specifically along the newly minted “Water Street” near the old Channel District of downtown, have adopted the discourses and practices of “fast policy” (Peck and Theodore 2015), “rule by aesthetics” (Ghertner 2010) and “worlding” (Ong and Roy 2011). To that …

Accuracy Assessment, Comparative Performance, And Enhancement Of Public Domain Digital Elevation Models (Aster 30 M, Srtm 30 M, Cartosat 30 M, Srtm 90 M, Merit 90 M, And Tandem-X 90 M) Using Dgps, Kumari Preety, Anup K. Prasad, Atul K. Varma, Hesham El-Askary

Mathematics, Physics, and Computer Science Faculty Articles and Research

Publicly available Digital Elevation Models (DEM) derived from various space-based platforms (Satellite/Space Shuttle Endeavour) have had a tremendous impact on the quantification of landscape characteristics, and the related processes and products. The accuracy of elevation data from six major public domain satellite-derived Digital Elevation Models (a 30 m grid size—ASTER GDEM version 3 (Ast30), SRTM version 3 (Srt30), CartoDEM version V3R1 (Crt30)—and 90 m grid size—SRTM version 4.1 (Srt90), MERIT (MRT90), and TanDEM-X (TDX90)), as well as the improvement in accuracy achieved by applying a correction (linear fit) using Differential Global Positioning System (DGPS) estimates at Ground Control Points (GCPs) …

Coming To Know The Local Environment: Children's Experiences In Rautamai Gaunpalika, Nepal, Elsie Nicole Love

Dissertations and Theses

This qualitative research, conducted over three months from late monsoon season into early fall of 2018 with twenty-six children and thirteen adults, explores how children in the hills of Rautamai Gaunpalika, Province 1, Nepal come to know their local environment. Semi-structured interviews with children, their family members, and teachers, and participant observation with children as they worked and played in forests, fields, and streams, suggest that outside of school, children come to know their local environment in the following ways: through participation in and application of knowledge to subsistence practices; through collaborative learning and teaching in mixed-age groups; through relationships …

Lee Isaac Chung, Minari (2020): Having An Amerikorean Life, Nagehan Uzuner

Markets, Globalization & Development Review

Minari by Lee Isaac Chung is a drama which chronicles the life of a Korean family who moves to the USA during 1980s in pursuit for a better life. The acculturation process is experienced differently by family members. Children are mostly bored with their new life in the rural area of Arkansas while their mother, Monica, is terrified of living in a mobile home which is made of a truck trailer in the middle of nowhere. Meanwhile, the grandmother joins the family from Korea to take care of the kids with a more positive approach dealing with their struggles. The …

The Spatial Organization Of Pre-Colonial African Kingdoms: The Empires Of Ethiopia & Mali, Victoria O. Alapo

Department of Geography: Dissertations, Theses, and Student Research

Pre-Colonial kingdoms in Sub-Saharan Africa were many, and were organized in unique ways. The old Empires of Ethiopia and Mali were selected for this research because of their antiquity and for their contrasts: Ethiopia was an official Christian Empire for about two millennia, while Mali was the quintessential Sub-Saharan Islamic kingdom. Also, both empires possessed documentation written by traditional Africans, in the form of ancient indigenous manuscripts, which predate the colonial period (i.e., the coming of Europeans) by several centuries. In addition, the research analyzes work that has been done by historians and other academics, and incorporates the reports of …

Autonomous, Long-Range, Sensor Emplacement Using Unmanned Aircraft Systems, Adam Plowcha, Justin Bradley, Jacob Hoberg, Thomas Ammon, Mark Nail, Brittany Duncan, Carrick Detweiler

School of Computing: Faculty Publications

Automated, in-ground sensor emplacement can significantly improve remote, terrestrial, data collection capabilities. Utilizing a multicopter, unmanned aircraft system (UAS) for this purpose allows sensor insertion with minimal disturbance to the target site or surrounding area. However, developing an emplacement mechanism for a small multicopter, autonomy to manage the target selection and implantation process, as well as long-range deployment are challenging to address. We have developed an autonomous, multicopter UAS that can implant subsurface sensor devices. We enhanced the UAS autopilot with autonomy for target and landing zone selection, as well as ensuring the sensor is implanted properly in the ground. …

Radar Remote Sensing For Land Surface Studies Over The United Arab Emirates, Muhagir Hisham Elkamali

Dissertations

This dissertation is concerned with the land surface deformations related to anthropogenic activities and how a monitoring strategy can be established for nationwide studies. The main objective of this dissertation is to study land surface fluctuations in regional and local scales over the dry semi-arid climate of the United Arab Emirates with the relation to subsurface layers mechanisms and groundwater dynamics. Radar Interferometry techniques have been developed to detect and monitor land surface movement from space with very high accuracy. This dissertation investigates the implementation of these techniques over highly decorrelated surfaces. The detected land surface movements have been correlated …

The Spatial Relationship Between Patterns Of Disappeared Streams And Residential Development In Portland, Oregon, Usa, Gregory C. Post, Heejun Chang, David Banis

Geography Faculty Publications and Presentations

Disappeared streams are streams that have been buried, removed, or moved as part of the urbanization process. We identified disappeared streams in the Portland, Oregon metropolitan area using historical topographic maps for four time periods, and related them to the history of urban development. The historical maps were used to identify streams visible in older maps but not shown in a more recent version. From 1852 to 1895, 15% of streams disappeared, but the majority of streams disappeared between 1896 and 1953 (65%). This trend continued mainly in suburban areas after 1954 with 12% of streams being removed from 1954 …