Geography Commons^™

Assessing Urban Tree Coverage Along The U.S.-Mexico Border: A Gis Analysis Of Paso Del Norte, Melanie Escobar

Open Access Theses & Dissertations

In recent years, researchers have extensively studied the spatial distribution of social demographics and urban tree canopy (UTC) in urban cities, but very few, to this date, address U.S.-Mexico border cities. To date, there is no research that assesses the distribution of urban tree canopy (UTC) in the city of El Paso, Texas, and Ciudad Juarez, Chihuahua, along the U.S.- Mexico border. Leveraging advanced mapping techniques and GIS tools, the study performs comparisons between countries (Juárez vs. El Paso urbanized areas and intra-country (within each country). It compares land cover classifications, assesses variations in UTC distribution across census tracts and …

Soil Moisture Profile Estimation By Combining P-Band Sar Polarimetry With Hydrological And Multi-Layer Scattering Models, Anke Fluhrer, Thomas Jagdhuber, Carsten Montzka, Maike Schumacher, Hamed Alemohammad, Alireza Tabatabaeenejad, Harald Kunstmann, Dara Entekhabi

Geography

An approach for estimating vertically continuous soil moisture profiles under varying vegetation covers by combining remote sensing with soil (hydrological) modeling is proposed. The approach uses decomposed soil scattering components, after the removal of the vegetation scattering components from fully polarimetric P-band SAR observations. By comparing these with hydrological simulations, soil moisture profiles from the soil surface until a soil depth of 30 cm (assumed average P-band penetration depth) are estimated. Here, the hydrological model HYDRUS-1D, as a representative of any soil hydrological model, is employed to simulate an ensemble of realistic soil moisture profiles, which are used for a …

Understanding Land Uses And Their Manifestations Across The Rural-Urban Continua Of Rangpu, Bangladesh And Louisville, Kentucky., Md Jakirul Islam Jony Prothan

Electronic Theses and Dissertations

Rapid urban growth accelerates various features characteristic of rural-urban environments as they change from urban cores to rural areas. This study examines land use change along a rural-urban continuum for two different cities: Louisville, USA, and Rangpur, Bangladesh. Different key land use patterns are compared within and across these different city contexts from 2000 to 2020. Land use change and comparing its spatiotemporal factors are useful metrics to better understand the patterns of development, socio-demographic change, and the uniqueness of cities. Spatial and temporal patterns of sociodemographic and biophysical components of land use provide important information for identifying transition zones …

Pre-Columbian Soil Management, Settlement, And Land Use In Amazonia: Insights Using Micro-Regional Predictive Modelling In Gurupá, Brazil., Lauren Zacks

Electronic Theses and Dissertations

The results of a micro-regional predictive model of terra preta sites in the municipality of Gurupá are presented here. A Maximum Entropy approach was selected and modified to fit a presence-background model, rather than a presence-absence model typical of binary classifications. 13 known terra preta sites were used as input samples for the relative suitability model, with explanatory variables in the respective categories of topography, hydrology, soil type and vegetation index. A 30m spatial resolution DEM served as the basis for the former two categories, while additional TauDEM analysis was performed for the hydrology category. A Sentinel-2A mosaicked quarterly composite …

Deterministic Global 3d Fractal Cloud Model For Synthetic Scene Generation, Aaron M. Schinder, Shannon R. Young, Bryan J. Steward, Michael L. Dexter, Andrew Kondrath, Stephen Hinton, Ricardo Davila

Faculty Publications

This paper describes the creation of a fast, deterministic, 3D fractal cloud renderer for the AFIT Sensor and Scene Emulation Tool (ASSET). The renderer generates 3D clouds by ray marching through a volume and sampling the level-set of a fractal function. The fractal function is distorted by a displacement map, which is generated using horizontal wind data from a Global Forecast System (GFS) weather file. The vertical windspeed and relative humidity are used to mask the creation of clouds to match realistic large-scale weather patterns over the Earth. Small-scale detail is provided by the fractal functions which are tuned to …

Microwave Emission Model Parameter Tuning For Surface Soil Moisture Retrieval Using Uav-Mounted Dual Polarization L-Band Radiometer, Santiago Hoyos Echeverri

Open Access Theses & Dissertations

Surface soil moisture retrieval from L-band brightness temperature has been developed for the past decades due to multiple beneficial characteristics of 1-2 GHz frequency bands for remote sensing of the environment. Numerous microwave emission models have been proposed for tower and satellite-based operations with successful retrieval of surface soil moisture and vegetation water content. As a result of the development of cost-effective and low-mass microwave L-band radiometers such as the Portable L-band Radiometer (PoLRa), surface soil moisture surveying traditionally developed by satellite missions SMOS and SMAP can now be developed at local scales, bringing these operations to commercial small unmanned …

Agricultural Groundcover Update March 2024, Justin Laycock

Natural resources published reports

• In March, over 10% (1,577,000 ha) of the arable farmland in the south-west of Western Australia had less than 50% vegetative groundcover, which is inadequate to prevent wind erosion.

• The northern grainbelt had the highest risk of wind erosion and over 20% of this farmland had inadequate groundcover.

• About 1.3% (191,000 ha) of arable land had a high to very high risk of wind erosion because groundcover was less than 30%.

Bay Water Level Influences On Inundation And Morphological Changes Of A Semi-Connected Barrier Island During A Hurricane, Sydney D. Goodman

Graduate Theses and Dissertations (2019 - present)

This research aims to identify flooding and erosion changes along a semi-connected barrier island system due to varying bay water levels during storm conditions. The numerical model XBeach is used to simulate Hurricane Michael conditions and the resulting inundation and morphological change near Tyndall Air Force Base (Tyndall AFB). The installation is located 12 miles southeast of Panama City Beach along the panhandle of Florida and is vulnerable to flooding due to its proximity to the Gulf of Mexico (GoM), Saint Andrew Sound and Saint Andrew Bay. A land bridge connects the barrier island to the mainland of Tyndall AFB …

Food Policy Council, Alexandra G. Winn, Kirsten Hannah Jaquish, Shelby Lynn Davis, Alexandra N. Ehlers, Joshua Lohnes

Undergraduate Scholarship

Nourishing Networks is a workshop that promotes the development of Food Policy Councils, which are a group of community members that advocate for the Right to Food in their community. Through conversation surrounding food access barriers and strategies in their community, the workshop aims to educate participants on how they can improve food access in their community. This research project sought to conduct Nourishing Networks meetings in a variety of West Virginia counties with the intention of accompanying local community members and organizations to create a Food Policy Council for their region. Using a standardized organization process, curriculum, and reporting …

Ethnic Minority Owned And Serving Grocers In Morgantown And Solidarity Economies, Bane B. Clements-Smart, Rissell L. Velarde Vila, Cameron G. Rishworth

Undergraduate Scholarship

This project sought to build off previous research within the Center for Resilient Communities on grocers and solidarity economies, by learning about grocers owned by minority ethnic groups and that serve minority ethnic groups through offering products for cuisines and cooking unavailable through large, mainstream grocery chains such as Walmart, Kroger, or Giant Eagle. These stores also offer a cultural space where people from minority ethnic groups can connect and build community through a sense of home and familiarity provided by these spaces, not easily found elsewhere in Morgantown.

Reclaiming Housing For Sustainable And Equitable Development, Ethan Harner, Gabrielle Fraizer, Bradley Wilson

Undergraduate Scholarship

Across West Virginia, Appalachia, the South, and other regions which have borne the historic brunt of extraction, capital flight, and systemic lack of opportunity, cooperative and community-based solutions to economic challenges have historically and presently been found in and amongst marginalized communities. As a critical component of community wellbeing, development, and prosperity, we situate housing as a necessary component to the understanding of cooperative, grassroots, and solidarity forms of economic organization. In this we explore the ways community-based housing solutions contribute to senses of community and solidarity both within housing structures and the broader community. We place these findings in …

Water Equity And Planning: Acid Mine Drainage In Deckers Creek Watershed, Brooke O. Waters, Lennon Jewell Auvil, Grace Dever

Undergraduate Scholarship

When mines close, they simply do not disappear. They cannot be buried or forgotten about. The implications of mining leave a lasting history and impact not only on our lands but on the people as well. Abandoned mine lands are areas of our community and environment that have been destroyed due to the extraction of coal and other minerals. Mining results in the destruction of landscapes, contamination of waterways, and the emission of harmful chemicals to our communities.
Acid Mine Drainage (AMD) is a resultant water pollutant that is derived from mining practices, active or abandoned. This pollutant forms from …

Towards Accessible Futures: Re-Imagining Space And Inclusion In Higher Education, Cecelia Kaufmann

Geography Honors Projects

Since the Americans with Disabilities Act (ADA), an increased number of people with disabilities have participated in higher education, yet their experiences continue to differ from their able-bodied peers. This thesis considers these differences utilizing Dolmage’s academic ableism, Foucault’s theory of Biopower, and Lefebvre’s theory on the Production of Space. This research shows how physical infrastructure and levels of power reproduce instances of academic ableism. Utilizing a case study of a private college in Minnesota, this research draws on interviews with stakeholders, offering guidance to correct the broader social and physical exclusions created that people with disabilities encounter in higher …

Community Conservation In Madagascar: Aligning Local Livelihoods And Biodiversity Protection, Jane Slentz-Kesler

Geography Honors Projects

The management of natural resources in developing countries is of utmost importance as both high levels of biodiversity and local livelihoods often hang in the balance. The debate in conservation spheres often centers on 'fortress' versus 'community-based' conservation approaches, one emphasizing nature preservation and the other emphasizing the needs and empowerment of local communities in resource management. This study evaluates the management approach of a rainforest in northeast Madagascar, asking: how effectively does the COMATSA Sud protected area management system both preserve critical forest cover and provide for the local community? This research employs a mixed-methods approach, using interviews and …

Designed For Life: Unearthing Just And Sustainable Urban Design Through The Daylighting Of Phalen Creek, Corgan R. Archuleta

Geography Honors Projects

This thesis conceptualizes a relational approach to urban design. Often separated from justice, I argue urban design can shape spaces to enable respectful and reciprocal human and more-than- human relationships. Focusing on Phalen Creek in Saint Paul, Minnesota, I illuminate just and sustainable possibilities between ecologically sustainable and socially inclusive design. Phalen Creek was a natural waterway buried in a pipe during 20th century urbanization to be partially reconstructed through daylighting. The Indigenous and Immigrant stories driving restoration expand urban design’s liberatory potential. Combining just sustainabilities with infrastructure theory and Indigenous Knowledges, I contend urban design offers a relational approach …

No. 18: Refugee Protection And Food Security In Kampala, Uganda, Andrea M. Brown

Migration and Food Security (MiFOOD) Network

This study proposes strategies to better recognize and protect the food security needs of Kampala’s refugee population. Uganda is Africa’s largest refugee host, with a policy approach that has been widely lauded for its flexible settlement provisions and commitment to durable solutions. However, growing refugee populations and underfunding have led to serious pressures, severely exacerbated during the COVID-19 pandemic. Food insecurity in designated refugee settlements is at critical levels: 75% of residents are food insecure. One unique aspect of Uganda’s refugee governance approach is the allowance of refugee populations to self-settle outside of designated camps, in the capital city, Kampala. …

Water Security And Justice: Community Pfas Exposure In Monongalia County, Selena A. Melendez, Ilan Rice, Grace Dever

Undergraduate Scholarship

Water security and justice is the right of all people to have reasonable access to clean and safe water. Pollution in the form of toxic discharge from various industries poses a significant risk to public and environmental health. Among these toxic pollutants are per- and poly-fluoroalkyl substances (PFAS), also known as "forever chemicals” that compromise water quality in our communities. Despite the Safe Drinking Water Act (SDWA) in 1974 aimed at ensuring clean drinking water for WV, there is still an alarming pattern of neglect and injustice to communities related to race, ethnicity, socio-economic status, and language barriers . Non-compliance …

Spectral Properties Of Wetlands In Michigan Using Remote Sensing To Identify And Classify Wetlands In Roscommon County, Michigan, Kolin Williamson

USF Tampa Graduate Theses and Dissertations

Biological, geological, and physical. These are only a handful of the many environmental aspects that wetlands functions maintain and protect. Unfortunately, wetlands within the United States have been razed at an alarming rate. The State of Michigan has not gone through this unscathed either, loosing over 1000 acres of wetland a year. One of the most important tools to prevent this destruction are the maps and programs that show where these essential ecosystems are located. The current, federally-created maps and imaging software in use by environmental consultants and contractors may not be up to date which can pose challenges for …

Spatiotemporal Analysis Of Soil Quality Degradation And Emissions In The State Of Iowa (Usa), Elena A. Mikhailova, Hamdi A. Zurqani, Lili Lin, Zhenbang Hao, Christopher J. Post, Mark A. Schlautman, Gregory C. Post

Geography Faculty Publications and Presentations

The concept of soil quality (SQ) is defined as the soil's capacity to function, which is commonly assessed at the field scale. Soil quality is composed of inherent (soil suitability) and dynamic (soil health, SH) SQ, which can also be analyzed using geospatial tools as a SQ continuum (SQC). This study proposes an innovative spatiotemporal analysis of SQ degradation and emissions from land developments using the state of Iowa (IA) in the United States of America (USA) as a case study. The SQ degradation was linked to anthropogenic soil (SD) and land degradation (LD) in the state. More than 88% …

Net Fluxes Of Broadband Shortwave And Photosynthetically Active Radiation Complement Ndvi And Near Infrared Reflectance Of Vegetation To Explain Gross Photosynthesis Variability Across Ecosystems And Climate, Kanishka Mallick, Joseph Verfaillie, Tianxin Wang, Ariane Arias Ortiz, Daphne Szutu, Koong Yi, Yanghui Kang, Robert Shortt, Tian Hu, Mauro Sulis, Zoltan Szantoi, Gilles Boulet, Joshua B. Fisher, Dennis Baldocchi

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

A significant challenge in global change research is understanding how vegetation interacts with the environment to influence ecosystem gross primary productivity (GPP) through carbon assimilation. One emerging objective is to consistently predict GPP fluctuations worldwide by establishing a robust scaling relationship between GPP measured at flux towers and satellite spectral reflectance data. However, a major hurdle in achieving this goal is the discrepancy in spatial resolution between early satellite measurements and eddy flux measurements. By using a large set of growing season data covering 100 site-years in North and Central America, we explored the potential of transforming incident and reflected …