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2025

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Articles 31 - 60 of 101

Full-Text Articles in Geographic Information Sciences

The Sulu Sea Mandate: A Diplomatic And Military Initiative To Ensure Freedom Of The Seas, John Cheney Jul 2025

The Sulu Sea Mandate: A Diplomatic And Military Initiative To Ensure Freedom Of The Seas, John Cheney

Theses

This thesis advocates the establishment of an official US government diplomatic policy, and recommends specific means for its implementation. By combining a written narrative with a unique and highly detailed Geographic Information System (GIS,) this thesis argues that securing the Philippines archipelago from further Chinese annexations is a US strategic imperative. To that end, US military forces and capabilities- particularly those of the US Marine Corps (USMC)- would be integrated into the revamped defense of the Philippines.

Utilizing a variety of datasets, the thesis GIS depicts such features as geopolitical boundaries, conflict zones, maritime trade routes, bathymetry, navigational hazards, undersea …


Analysis Of The Development Potential And Strategy Of The Kauman Batik Village In Surakarta Using Quantitative Strategic Planning Matrix (Qspm) Approach, Fauzi Syani Prananto, Edi Kurniawan, Satya Budi Nugraha Jun 2025

Analysis Of The Development Potential And Strategy Of The Kauman Batik Village In Surakarta Using Quantitative Strategic Planning Matrix (Qspm) Approach, Fauzi Syani Prananto, Edi Kurniawan, Satya Budi Nugraha

Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi

The increasing development of other leading destinations in Surakarta City, there are many challenges that must be faced by Kauman Surakarta Batik Village. The activation of tourism potential that has not been fully managed optimally shows that the existence of the village is starting to be threatened. The purpose of this research is to identify tourism potential that needs to be developed and to analyze the development strategy of Kampung Batik Kauman Surakarta tourist attraction by looking at the potential it has. The method used in this research is quantitative with data collection techniques, namely observation, interviews and questionnaires. Data …


Flash Flood Modelling In The Brantas Hulu Sub-Watershed, Batu City, Indonesia, Listyo Yudha Irawan, Vischawafiq Azizah, Siti Nur Farihah, Luisa Fernanda Medina, Puspita Indra Wardhani, Nanda Regita Cahyaning Putri, Mellinia Regina Heni Prastiwi, Mohammad Rendra Magandhi Arizal Jun 2025

Flash Flood Modelling In The Brantas Hulu Sub-Watershed, Batu City, Indonesia, Listyo Yudha Irawan, Vischawafiq Azizah, Siti Nur Farihah, Luisa Fernanda Medina, Puspita Indra Wardhani, Nanda Regita Cahyaning Putri, Mellinia Regina Heni Prastiwi, Mohammad Rendra Magandhi Arizal

Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi

Flash floods are especially hazardous hydrological phenomena, noted for their abrupt occurrence and capacity to inflict severe damage on infrastructure, farmlands, and residential zones, often leading to substantial socio-economic upheaval and fatalities. A flash flood struck the Upper Brantas watershed on November 4, 2021, at 14:00, precipitated by intense rainfall over a short duration, leading to significant hydrological impacts. The event manifested at six critical points within Batu City, with Sambong Hamlet and Beru Hamlet experiencing severe inundation. The flash floods disrupted residential areas and severely affected agricultural lands through debris flows. Preliminary assessments indicated that approximately 35 houses were …


Urban Sprawl On Agricultural Lands In Marj Ibn Amer Plain (1973-2022) - Palestine (Using Modern Geographical Techniques), Mustafa Jarrar Jun 2025

Urban Sprawl On Agricultural Lands In Marj Ibn Amer Plain (1973-2022) - Palestine (Using Modern Geographical Techniques), Mustafa Jarrar

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

This study aims at the spatial analysis of urban expansion in the plain of Marj Ibn Amer at the expense of agricultural lands in the period between 1973 to 2022, using geographic information systems (GIS) and remote sensing RS, Depending on the Landsat satellite image, which were processed, improved, classified and analyzed, and then quantitative calculations were made for urban expansion , It has been shown by the results obtained that the volume of urban sprawl on agricultural lands in the Marj Ibn Amer plain has evolved from 53.59 km2 in 1973 to 164.22 km2 in 2022 , and the …


Mapping Responsible Workflows For Geospatial Data Science: Developing The I-Guide Data Ethics Toolkit, Peter T. Darch, Kyra M. Abrams, Ivan Y M Kong Jun 2025

Mapping Responsible Workflows For Geospatial Data Science: Developing The I-Guide Data Ethics Toolkit, Peter T. Darch, Kyra M. Abrams, Ivan Y M Kong

I-GUIDE Forum

AI workflows in geospatial data science offer significant societal benefits but raise ethical, transparency, and reproducibility challenges. Current ethical frameworks and tools are often hard to integrate into daily research practice. This paper introduces the I-GUIDE Data Ethics Toolkit (DET), a lightweight suite designed for users of the NSF-funded Institute for Geospatial Understanding through an Integrative Discovery Environment (I-GUIDE). Based on a longitudinal mixed-methods study, including surveys, interviews, and observations, we identified five design priorities: usability, anticipatory planning, distributed responsibility, comprehensive coverage, and policy compliance. We integrated existing AI and data research lifecycles into an eight-stage I-GUIDE Research Lifecycle, serving …


Evaluating The Evaluation Matrices: Integrating Spatial Assessment In Geospatial Ai Model Training And Evaluation, Fangzheng Lyu Jun 2025

Evaluating The Evaluation Matrices: Integrating Spatial Assessment In Geospatial Ai Model Training And Evaluation, Fangzheng Lyu

I-GUIDE Forum

This paper examines the limitations of current evaluation metrics in GeoAI. Through two case studies on deep learning models—a building detection classification problem and a remote sensing image fusion regression problem—this paper demonstrates how traditional statistical evaluation matrices alone can be misleading in geospatial problems. The findings indicate that traditional metrics (e.g., RMSE, MAE) used in current GeoAI models can have difficulty capturing the spatial dimensions inherent to geospatial problems. This paper suggests that the model evaluation process in GeoAI should move beyond traditional evaluation matrices by integrating spatial thinking throughout the modeling pipeline—not only incorporating spatial accuracy in model …


Expanding Access To Cybergis-Compute Through Support For Heterogeneous Workflows, Alexander C. Michels, Ian Zhang, Anand Padmanabhan, John Speaks, Rebecca Vandewalle, Shaowen Wang Jun 2025

Expanding Access To Cybergis-Compute Through Support For Heterogeneous Workflows, Alexander C. Michels, Ian Zhang, Anand Padmanabhan, John Speaks, Rebecca Vandewalle, Shaowen Wang

I-GUIDE Forum

CyberGIS-Compute is a geospatial middleware tool designed to lower technical barriers to High-Performance Computing (HPC) resources. It provides end-users with a Graphical User Interface (GUI) for submitting models to HPC and allows model developers to contribute their workflows by adding a manifest to their repositories. However, the simplification of the user interface and streamlining of model contribution have unintentionally limited the scope of models that could be run on CyberGIS-Compute. In this paper, we discuss recent developments to the CyberGIS-Compute project that are aimed at supporting a wider variety of workflows including performance enhancements, supporting additional configuration options for jobs, …


Assessing Vulnerabilities Associated With High-Risk Dams In Utah, Courtney Flint Dr., Michael Englert, Upmanu Lall Dr. Jun 2025

Assessing Vulnerabilities Associated With High-Risk Dams In Utah, Courtney Flint Dr., Michael Englert, Upmanu Lall Dr.

I-GUIDE Forum

Across the United States, the age of dam infrastructure presents a substantial threat. The potential for structural failure associated with these aging dams is exacerbated by increased climate uncertainty and the threat of dam overtopping due to extreme and prolonged precipitation events. These compound threats place downstream areas at pronounced risk. These downstream areas vary widely. Some are relatively free of vulnerable elements, while others have a complex mix of infrastructure, populations, and ecologically important elements. This paper highlights the risk situation associated with aging dams and hydroclimatic extremes, the methodological and geospatial challenges and opportunities associated with mapping the …


Pilgrimage, Trade And Empire: A Gis Investigation Of Pre-Hispanic Roads In The Ocoña And Chorunga Valleys Of Peru, Geri Evilla Jun 2025

Pilgrimage, Trade And Empire: A Gis Investigation Of Pre-Hispanic Roads In The Ocoña And Chorunga Valleys Of Peru, Geri Evilla

Electronic Theses and Dissertations

This research examines Inca imperial expansion into the Ocoña and Chorunga Valleys, through an investigation of precolonial roads and trails. It focuses on the Middle to Late Horizons (700 BCE-1534 CE), with specific attention to the last 100 years, when the region was occupied by the Inca state and experienced a rapid increase in population and architectural development. Data collected in excavations, and pedestrian, and drone surveys were used in geographic information systems, to map pre-Hispanic road systems. A combination of Least Cost Path and viewshed analyses were used to investigate land use patterns and tie this region into the …


Toward Sustainable Human Well-Being: A Multidimensional Assessment In Colorado, Uma Umut Baysal Jun 2025

Toward Sustainable Human Well-Being: A Multidimensional Assessment In Colorado, Uma Umut Baysal

Electronic Theses and Dissertations

Evaluating progress in human well-being is essential for guiding effective policy and promoting sustainable development. Traditional approaches often emphasize economic and social dimensions while overlooking ecological indicators critical to long-term sustainability. This research addresses that gap by proposing a layered, scalable local framework for county-level analysis and bottom-up decision-making, integrating multiple objective indicators to assess and compare well-being outcomes across regions.

The first goal of this dissertation is to measure human well-being in Colorado counties by developing a Human Well-Being Index (HWBI). This index combines a newly developed Built Environment Index (BEI) comprising five sub-indices: accessibility, housing affordability, transportation, …


Archaeological, Pxrf, And Gis Analyses At The Trestle Bridge Site (8ja186), Northwest Florida, Victoria Marie Freitas May 2025

Archaeological, Pxrf, And Gis Analyses At The Trestle Bridge Site (8ja186), Northwest Florida, Victoria Marie Freitas

USF Tampa Graduate Theses and Dissertations

The Trestle Bridge Site (8JA186), located on an eroding riverbank of the upper Apalachicola River in northwest Florida, represents a significant multi-component precontact site with occupations that date from the Early Woodland (~800 B.C.–A.D. 300) and the Fort Walton periods (A.D. 1000-1500). Previous research has broadly classified the site based on ceramic and lithic assemblages, but a detailed investigation into pottery production and environmental changes over time at the site remains unexplored in the understudied Apalachicola valley region. There also appears to be over a thousand-year gap in occupation at the site, as no Middle or Late Woodland ceramic or …


Analyzing Land Cover And Use In Bichi, Kano, Nigeria With Google Earth Data, Kabiru Abdullahi Abdulhamid, Adi Wibowo, Muhammad Junaid May 2025

Analyzing Land Cover And Use In Bichi, Kano, Nigeria With Google Earth Data, Kabiru Abdullahi Abdulhamid, Adi Wibowo, Muhammad Junaid

Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi

The research investigates land cover and land use change trends in Bichi, Kano State, Nigeria, between 2003 and 2023, with a focus on the impacts of agricultural expansion and urbanization. Google Earth Pro's high-resolution satellite imagery was used to assess trends in agricultural land, forest cover, and settlement areas. The findings reveal a drastic reduction in agricultural land from 60 hectares in 2003 to 40 hectares in 2023 and the decline of forest cover from 30 hectares to 20 hectares. On the other hand, built-up settlement areas increased from 10 hectares to 40 hectares. All these processes have resulted in …


Cannabis Impacts On Native Lands: On The Need For Inclusion Of Native Perspectives In Extension Work, Jeremy Sorgen, Seth Larosa, Jennifer Sowerwine, Van Butsic, Peter Nelson, Melanie Mccavour, Shasta Gaughen, Anna Starkey May 2025

Cannabis Impacts On Native Lands: On The Need For Inclusion Of Native Perspectives In Extension Work, Jeremy Sorgen, Seth Larosa, Jennifer Sowerwine, Van Butsic, Peter Nelson, Melanie Mccavour, Shasta Gaughen, Anna Starkey

Journal of Extension

This article highlights the need for Cooperative Extension to increase awareness of Tribal concerns around activities that impact land, natural resources, and water. A research team at UC Berkeley worked with a Tribal Advisory Committee to conduct a survey of Tribal representatives’ perceptions of cannabis impacts on Native lands and cultural resources. The results show that there is widespread concern among Native communities about the environmental impacts of cannabis cultivation, especially to water quality, access, and availability. These concerns underscore the need to include Native communities in Extension’s agricultural and natural resource activities across all regions and sectors.


Gis And The 1944 U.S.–Mexico Treaty: Rethinking Transboundary Governance Under Climate And Demographic Stress, Pedro L. Sarabia May 2025

Gis And The 1944 U.S.–Mexico Treaty: Rethinking Transboundary Governance Under Climate And Demographic Stress, Pedro L. Sarabia

Master's Theses

This thesis examines the structural limitations of the 1944 U.S.–Mexico Water Treaty in the context of intensifying climate stress and growing population demand. Using GIS-based raster analysis of precipitation from 1981 to 2024, it maps hydrological trends in treaty-bound basins—particularly the Rio Grande and Lower Colorado—which exhibit persistently low and variable precipitation. These conditions, coupled with institutional rigidity, threaten the sustainability of binational water management. In addition to quantitative analysis, the study includes a qualitative assessment of transboundary governance dynamics, highlighting how institutional fragmentation and policy contention impede adaptive responses. The Treaty’s current surface-water-only framework excludes groundwater management, real-time data …


Who Owns The Wind: The Absence Of Community Wind Farms In California, Sky Berry-Weiss May 2025

Who Owns The Wind: The Absence Of Community Wind Farms In California, Sky Berry-Weiss

Master's Projects and Capstones

Community ownership structures for wind farms have been around for decades, particularly in European countries, due to high socioeconomic benefits. Given these significant benefits, one might expect community wind to thrive in the United States—especially in a state like California, which prides itself on progressive climate policy and renewable energy leadership. Yet utility-scale community wind remains largely absent from research on California’s energy system, raising questions about its existence in the state. To pinpoint how many utility-scale community owned wind farms are in California, this study surveys every operational wind turbine in the state. After classifying each wind farm by …


Framing The Future: A Community Health Analysis Of The Pee Dee Region, Stephen Borders, Jean Anton, Rian Fontaine, Donielle Phillips, Treyton Ringer, Jessica Robinson, Caitlin Thompkins May 2025

Framing The Future: A Community Health Analysis Of The Pee Dee Region, Stephen Borders, Jean Anton, Rian Fontaine, Donielle Phillips, Treyton Ringer, Jessica Robinson, Caitlin Thompkins

Public Health

This report presents a comprehensive, data-driven analysis of community health across South Carolina’s Pee Dee region, encompassing Florence, Darlington, Chesterfield, Marlboro, Marion, and Dillon Counties. Using tract-level data from CDC PLACES, the U.S. Census, and the National Provider Identifier registry, it assesses chronic health conditions, health behaviors, and social determinants of health. The analysis incorporates the South Carolina Healthy Communities Index (SCHCI) and a Suitability Analysis to identify the region’s most disadvantaged communities. The findings highlight persistent disparities, particularly in rural counties, where high rates of poverty, chronic disease, and unmet basic needs intersect with limited access to care. Despite …


Passive Envelope Retrofits As Climate Justice Infrastructure Against Extreme Heat: A Gis-Guided Approach For Outdated Single-Family Homes In Urban California, Mert Oztekin Mr. May 2025

Passive Envelope Retrofits As Climate Justice Infrastructure Against Extreme Heat: A Gis-Guided Approach For Outdated Single-Family Homes In Urban California, Mert Oztekin Mr.

Master's Projects and Capstones

I examined the opportunities to enhance equity in energy performance, climate resilience, and environmental adaptation through climate-resilient envelope retrofitting and spatially guided implementation strategies (via mappings of the Urban Heat Island -UHI- and socio-economic vulnerability indicators). Passive envelope retrofits of attic insulation; high-performance windows; cool roofs; and green roofs / walls, are examined across multiple climate zones of California' aged single-family housing stock, focusing on the Disadvantaged Communities (DACs). Through spatial analysis, strong overlap between Urban Heat Island(UHI) exposure; pre-1980 housing; socioeconomic disadvantage, and thus the need for spatially-directed action is underlined. The policy landscape analysis provides confirmation of the …


School Choice And Spatial Equity: A Comparative Analysis Of Public And Private K-12 School Enrollment In Three American Metropolitan Areas, John A. Schumacher May 2025

School Choice And Spatial Equity: A Comparative Analysis Of Public And Private K-12 School Enrollment In Three American Metropolitan Areas, John A. Schumacher

College of Arts & Sciences Senior Theses

This thesis investigates the factors influencing school choice and enrollment patterns in three Metropolitan Statistical Areas (MSAs): Detroit-Warren-Dearborn, MI; Louisville-Jefferson County, KY-IN; and Atlanta-Sandy Springs-Roswell. It explores the role of socioeconomic and spatial variables, including income levels, racial composition, and educational attainment, political fragmentation, and urbanicity in shaping enrollment decisions across public and private schools. Using spatial analysis and multiple regression techniques, the study examines how these factors contribute to variations in school enrollment within the selected MSAs. The results reveal that income level and racial composition significantly affect enrollment patterns while other factors such as urbanicity had minimal impact. …


Climate Change And Social Vulnerability: A Case Study Of The Mexico Lerma-Cutzamala Region, Monica Munoz Miranda, Milagros Becerra May 2025

Climate Change And Social Vulnerability: A Case Study Of The Mexico Lerma-Cutzamala Region, Monica Munoz Miranda, Milagros Becerra

Sustainability and Social Justice

Climate change is reshaping precipitation patterns in Mexico, with significant regional and seasonal variations, leading to notable impacts on different components of the hydrological cycle for the whole country. The project focuses on assessing climate change and social vulnerability in the Mexico-Lerma Cutzamala hydrological region, an area that plays a critical role in the water supply to the Mexico City Metropolitan Area and has faced water scarcity issues for years. The analysis was conducted at a municipal level through a study area of 210 municipalities, extended on approximately 31,305 sq.km, with a population of over 23 million people. Using geospatial …


Improving Nutrition Outcomes Through Enhanced Allocative Efficiency Of Investments In 24 High Risk Counties In Kenya: An Optima Nutrition Modelling Study, Morris Ogero, Nick Scott, Veronica Kirogo, Anthony Ngugi May 2025

Improving Nutrition Outcomes Through Enhanced Allocative Efficiency Of Investments In 24 High Risk Counties In Kenya: An Optima Nutrition Modelling Study, Morris Ogero, Nick Scott, Veronica Kirogo, Anthony Ngugi

Population Health, East Africa

Introduction ;Undernutrition remains a significant global challenge, severely impacting children’s development and growth. To address this, the Sustainable Development Goals target a substantial reduction in stunting and wasting by 2025. Achieving these goals requires scaling up evidence-based nutritional interventions; however, limited budgets pose challenges in funding all necessary programs. To assist policymakers in making informed decisions, the World Bank developed the Optima Nutrition Modelling tool, which optimizes the allocation of nutrition investments. Kenya, with its high prevalence of stunting, was the focus of this study. Using the Optima Nutrition model, we aimed to (1) assess the impact of scaling up …


Development Of Al Ain Flash Flood Risk Maps Utilizing High-Resolution And Accurate Remote Sensing Data, Khaled Khamis Al Arfati Apr 2025

Development Of Al Ain Flash Flood Risk Maps Utilizing High-Resolution And Accurate Remote Sensing Data, Khaled Khamis Al Arfati

Thesis/ Dissertation Defenses

Al Ain City has undergone significant land use transformations from 1992 to 2022, marked by a population increase of over 50% and extensive development activities. This period has seen the construction of new residential areas, infrastructure, and commercial establishments, as well as enhancements to green spaces. An analysis of the Digital Terrain Model (DTM) revealed an 83% alteration in the terrain due to urbanization and shifting sand dunes, with most elevation changes under 5 meters. The primary aim of this dissertation is to develop accurate flash flood risk maps for Al Ain using high-resolution remote sensing data. This research highlights …


Territorio Anfibio Y Agroalimentario. La Ruralidad Cenagosa, Cristan Abad Restrepo Apr 2025

Territorio Anfibio Y Agroalimentario. La Ruralidad Cenagosa, Cristan Abad Restrepo

Educación

Las comunidades que habitan los ecosistemas cenagosos gestionan su vida en conjunto con el agua. Existe un espacio relacional donde todo es interacción, de allí que el bienestar de las poblaciones depende de la calidad del agua de las ciénagas, de la producción del pescado y de la biodiversidad. Sin estas condiciones, los territorios anfibios no pueden reproducir la vida. Cuando el río, el caño y la ciénaga no realiza el intercambio hídrico, las comunidades entran en crisis, porque materialmente depende de esta para sobrevivir. Gestionar esta relación es fundamental para garantizar la vida local. Esta cartografía social del corregimiento …


Exploring The Right To Food Advocacy Landscape In The United States, Andrew Indomenico, Peppi Delliquadri, Chelsea Marshall, Alison Cohen, Josh Lohnes Apr 2025

Exploring The Right To Food Advocacy Landscape In The United States, Andrew Indomenico, Peppi Delliquadri, Chelsea Marshall, Alison Cohen, Josh Lohnes

CRC Research Symposium

The National Right to Food (RtF) Community of Practice (CoP) is a membership-based national coalition of advocates and organizations working to advance the RtF in our cities, towns, and states. This research project sought to understand (1) how a membership based organization like the CoP grows into a social movement defined by the visions and needs of its participants, and (2) what the added value is of weaving together existing local and state efforts into a national movement. Through surveys (n= 54) and interviews (n=20) of CoP members, this research sought to understand individual perceptions of RtF principles, and food …


Establishing The Creative Network: Wv's Arts Entrepreneur Ecosystem Project, Mckayla R. Braun, Domenica Queen Apr 2025

Establishing The Creative Network: Wv's Arts Entrepreneur Ecosystem Project, Mckayla R. Braun, Domenica Queen

CRC Research Symposium

The Tamarack Foundation for the Arts’ (TFA) the fellowship for the arts is an art foundation committed to nurturing the next generation of artists by providing a comprehensive support system designed to promote both creative and professional development. Through its fellowship program, TFA provides artists with access to critical resources, including financial literacy education, mentorship, and structured opportunities for artistic and professional growth. Recognizing that creative talent alone is not always sufficient to sustain a long-term artistic practice, TFA’s mission is to equip fellows with the knowledge and tools necessary to thrive both within and beyond the studio. As part …


Transforming Our Communities: Studying The Impact Of The Wvhub Coaching Program, Haley Mosley, Audrey Bennett, Bradley Wilson, Olivia Mcconnell Apr 2025

Transforming Our Communities: Studying The Impact Of The Wvhub Coaching Program, Haley Mosley, Audrey Bennett, Bradley Wilson, Olivia Mcconnell

CRC Research Symposium

Since Fall 2024, the WVU Center for Resilient Communities and WV Community Development Hub (WVHUB) have worked in partnership to advance action research on their unique community coaching program in West Virginia. Now celebrating 15 years of operation, the Hub is the only statewide community economic development organization in West Virginia. Its purpose is to help communities locate and obtain local, regional, and federal funding resources for various projects. The Hub works with isolated, marginalized communities, especially in rural areas. The Hub seeks to evaluate its community coaching programs. During the past few months, countless organizations have seen financial cuts …


Impacts Of Extreme Weather Conditions On Coastal Fisheries Near Bayou Teche, Louisiana From 2019–2023, Georgia C. Davis Apr 2025

Impacts Of Extreme Weather Conditions On Coastal Fisheries Near Bayou Teche, Louisiana From 2019–2023, Georgia C. Davis

LSU Master's Theses

The region of Southcentral Louisiana, particularly around Bayou Teche, thrives on its commercial and recreational fisheries. These fisheries are occasionally subject to events like extreme weather that cause sudden and unexpected losses (NOAA Fisheries, 2024a). Between 2019 and 2023, a series of extreme weather events impacted southcentral Louisiana near Bayou Teche. This series of extreme events includes Hurricane Barry (2019), Hurricane Laura (2020), Hurricane Delta (2020), Hurricane Zeta (2020), Hurricane Ida (2021), and a United States Drought Monitor (USDM) D4 drought (2023). This study analyzes the impacts of the extreme weather series on coastal fish observed species richness (SR) in …


Prenatal Exposure To Pm2.5 Concentration And Risk Of Preterm Birth In New Mexico; A Seasonal Pattern And Spatio-Temporal Modeling., Onyedikachi J. Okeke Apr 2025

Prenatal Exposure To Pm2.5 Concentration And Risk Of Preterm Birth In New Mexico; A Seasonal Pattern And Spatio-Temporal Modeling., Onyedikachi J. Okeke

Mathematics & Statistics ETDs

This study investigates the association between prenatal PM2.5 exposure and preterm birth risk in New Mexico (2014–2021). Using descriptive statistics, time series models, and spatial analyses, findings show an average preterm birth rate of 14.87 per 1,000 live births, with moderate correlation (r = 0.727) between PM2.5 levels and very preterm births. While traditional models revealed no significant global effect, spatial methods such as Geographically Weighted Regression (GWR) and Multiscale GWR uncovered strong spatial heterogeneity. PM2.5 effects varied by county (coefficients: -0.00154 to 0.00150), with clustering evident in 2018–2019 (Moran’s I = 0.155–0.174). Results highlight the limitations of global models …


Flood Risk Assessment In Humanitarian Contexts: A Remote Sensing And Gis Methodology Applied To Nyarugusu Refugee Camp, Tanzania, Carolyne Vincent Mbirika Apr 2025

Flood Risk Assessment In Humanitarian Contexts: A Remote Sensing And Gis Methodology Applied To Nyarugusu Refugee Camp, Tanzania, Carolyne Vincent Mbirika

Theses

Flooding is a global challenge, with effects mostly experienced in developing countries due to insufficient data for effective flood risk assessment and management. Refugee settlements are particularly vulnerable to flooding due to their remote locations, high population density, and temporary shelters, necessitating flood susceptibility mapping to effectively mitigate risks and minimize damage prior to flooding events. This study assessed flood susceptibility in the Nyarugusu refugee camp, Tanzania, through Multi-criteria Decision Analysis (MCDA) and Analytical Hierarchy Process using remote sensing and Geographic Information Systems (GIS) approaches. The flood susceptibility map that resulted from this process categorizes flood-prone areas into three classes: …


Development Of Al Ain Flash Flood Risk Maps\ Utilizing High-Resolution And Accurate Remote Sensing Data, Khaled Khamis Al Arfati Apr 2025

Development Of Al Ain Flash Flood Risk Maps\ Utilizing High-Resolution And Accurate Remote Sensing Data, Khaled Khamis Al Arfati

Dissertations

Al Ain City has undergone significant land use transformations from 1992 to 2022, marked by a population increase of over 50% and extensive development activities. This period has seen the construction of new residential areas, infrastructure, and commercial establishments, as well as enhancements to green spaces. An analysis of the Digital Terrain Model (DTM) revealed an 83% alteration in the terrain due to urbanization and shifting sand dunes, with most elevation changes under 5 meters.

The primary aim of this dissertation is to develop accurate flash flood risk maps for

Al Ain using high-resolution remote sensing data. This research highlights …


Geo-Ai For Wetland Classification And Evolutionary Analysis, Lirong Yin Mar 2025

Geo-Ai For Wetland Classification And Evolutionary Analysis, Lirong Yin

LSU Doctoral Dissertations

Wetlands, as a crucial component of the Earth's ecosystem, play a vital role in maintaining ecological balance and preserving biodiversity. However, wetlands are currently facing severe challenges, as both natural and human-induced factors are contributing to their global degradation. Gaining a deep understanding of the species composition and biodiversity within wetland-covered areas and accurately analyzing their changing trends not only helps assess the current and future state of wetlands but also provides strong support for the formulation of scientifically sound wetland conservation strategies. In recent years, the rapid development of geospatial intelligence and remote sensing technologies has brought new opportunities …