Physical and Environmental Geography Commons^™

Nashville-Basin Tornadoes: Using Storm Types To Elucidate The Local Climatology And Forecasting Challenges, Morgan Steckler, Kelsey Ellis

Pursuit - The Journal of Undergraduate Research at The University of Tennessee

Early 3 March 2020 was a devastating night for many middle Tennessee residents. A strong EF-3 tornado tore through Nashville at 65 mph, and another EF-4 killed 18 in Baxter and Cookeville alone. Residents of the Southeastern United States are particularly vulnerable to tornadoes. This study aims to better understand local forecasting challenges by looking at the types of storms that produce tornadoes. Storm types, also known as convective modes, divide tornado-producing storms into categories by length, shape, multiplicity, and intensity. Distinguishing storms by these modes allows for a broader understanding of their occurrences and impacts. This study specifically evaluates …

Hazardous Weather And Human Response In The Southeastern United States, Daniel Burow

Doctoral Dissertations

Effectively mitigating the human costs of future hazardous weather events requires examining meteorological threats, their long-term patterns, and human response to these events. The southeastern United States is a region that has both a high climatological risk and a high societal vulnerability to many different meteorological hazards. In this dissertation, I study hazardous weather and human response in the Southeast through three different lenses: identifying uniquely simultaneous hazards posed by tropical cyclones, assessing precipitation and synoptic weather patterns on hazardous weather days, and examining patterns in intended response to tornado watches. I find that simultaneous and collocated tornado and flash …

Tweet Diffusion Over Space And Time: A Comparison Of A Winter-Weather And Tornado-Outbreak Case Study, Alyssa Margaret Cannistraci

Masters Theses

Social media allows people to receive, engage in, and share weather information. Users of the social media platform Twitter actively share weather content via tweets, which researchers can acquire through an Application Programming Interface (API). APIs return tweet content, as well as temporal and spatial characteristics (latitude and longitude coordinates). Tweets can then be mapped and studied spatiotemporally through Geographic Information System (GIS) software. For this work, I compared how tweets spread (“diffuse”) over space and time during two natural hazard events in the United States. The first case study is a winter weather event that The Weather Channel named …

Understanding The Vulnerability Of The Population Of Afghanistan Under Multiple Natural And Anthropogenic Risks With An Indicator-Based Analysis, Matthew Repine Miller

Masters Theses

The purpose of this study is to understand the vulnerability to natural and anthropogenic hazards of the population of Afghanistan and the social factors which enhance or moderate such vulnerability. While vulnerability studies are commonly conducted in the United States, as well as many other global north countries, most studies of this type utilize data collected by central government entities in the form of a census which is periodically executed and uses standardized collection methods. In the case of Afghanistan, and many other countries in the global south, such data is hard to acquire, lacks a high level of confidence, …

A Decade Of Lessons Learned: The Local Implementation Of Stormwater Programs In Tennessee, Catherine Trudy Olsen

Masters Theses

Over the past decade, communities across the nation have innovated, regulated, and constructed their way to managing urban stormwater runoff, with the grand goal of making the nation’s waters fishable and swimmable. Regulated under federal NPDES MS4 Phase II stormwater permits, communities have endeavored to implement the comprehensive requirements of this unfunded federal mandate. Reducing the considerable impact of municipal runoff on water resources across the country is imperative to the achievement of grand goals under the Clean Water Act: to restore and protect the quality of the nation’s waters (USEPA, 2000). Across the state of Tennessee, the capacity of …

Time Series Analysis Of Modis Ndvi Data With Cloudy Pixels: Frequency-Domain And Sizer Analyses Of Vegetation Change In Western Rwanda, Ephraim Robert Love

Masters Theses

Remote sensing is a valuable source of data for the study of human ecology in rural areas. In this thesis, I attempt to analyze the presence of a long-term trend indicative of post-resettlement adaptation in the vegetation signals of Western Rwanda. There is a dearth of research utilizing medium resolution imagery to study difficult environments, such as tropical-montane regions, where complex topography and cloud cover diminish image accuracy. I attempt to add to the extant literature on frequency-domain smoothing methods as well as the literature on human-environment interaction in tropical-montane regions by applying a harmonic filtering and smoothing algorithm to …

Using Gis To Identify At-Risk Populations Of Military-Generated Dust, Darcy Ann Ayers

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

This project uses GIS and an anthropological perspective to identify local populations surrounding Pohakuloa Training Area (PTA) that are most at risk from military vehicle-generated dust. Using ArcGIS, the following data was analyzed in order to better understand impacts from dust on the local population: • Prevailing wind rose data from National Water and Climate Center under the USDA National Resources Conservation Service, • Digital Elevation Model (DEM) map of the island provided by National Elevation Dataset from USGS, and • The US Census data of the local population distribution surrounding the military base at PTA. When studying demographics, I …

A Multidimensional Analysis Of The Great Green Wall: The Environmental And Social Effects Of Reafforestation In Senegal, Anna Eugenia Alsobrook

Masters Theses

The north-central region of Senegal is home to the Great Green Wall (GGW)—a reafforestation project aimed at restoring decades–old, degraded land conditions by establishing tree belts and community gardens. Its presence on the ground has changed the local landscape and altered the social institutions governing the daily lives of the people it aims to protect.

My study is an in-progress assessment of the GGW towards its two major goals: 1) improving the lives of the people of the Sahel and increasing their capacity to adapt to climate change and drought, and 2) improving the state of the ecosystem and increasing …