Digital Commons Network^™

High-Resolution Mapping Of Soil Moisture Variation Using Uas Thermal And Multispectral Imagery, Jackline Amma Timah

Theses and Dissertations

In agricultural landscapes, soil moisture regulates hydrologic partitioning, nutrient transport and water quality, land-atmosphere energy exchange that shapes local climate, and ecosystem resilience. However, traditional monitoring approaches, such as in-situ sensors and satellite imagery, often lack the spatial resolution required to capture fine-scale soil moisture variability. This study evaluated whether unmanned aerial system (UAS)-derived thermal, multispectral, and terrain variables can capture fine-scale spatial variability in volumetric water content (VWC) within an SRB in central Illinois.

High-resolution imagery was collected and paired with 50 field-measured VWC observations. Land surface temperature (LST), vegetation indices (NDVI and NDRE), spectral bands, and slope were …

Legibility Grabs: Contesting Hegemony And Water Governance In Western Bahia, Brazil, Rowan A. Compton, Gustavo De L.T. Oliveira

Geography

This article examines how irrigated agribusiness interests in western Bahia, Brazil, are capturing the infrastructure of water governance itself — the basin committees, digital monitoring platforms, and fee structures through which water becomes visible and governable. Drawing on Gramscian theories of hegemony and James Scott's analysis of state legibility, we develop the concept of ‘legibility grabs’ to describe how dominant actors appropriate not only resources but the institutional mechanisms that render those resources objects of governance. Based on documentary analysis and 48 interviews conducted during fieldwork in 2024–2025, we demonstrate how agribusiness has waged wars of position within participatory institutions, …

Assessing The Robustness Of Prithvi Geospatial Foundation Model For Coastal Habitat Mapping Under Data Availability And Domain Shift Scenarios, Sam Khallaghi, Rishi Singh, Rahebeh Abedi, Ronald J. Eastman, Lyndon Estes, Sujit Roy, Rahul Ramachandran, Hamed Alemohammad

Geography

Self-supervised learning techniques and geospatial foundation models are garnering increasing attention within the remote sensing community, marking a pivotal shift toward more adaptable, generalizable and data efficient methodologies. Despite their growing popularity, comparative analyses between these emergent models and traditional, task-specific supervised deep learning models for tasks such as semantic segmentation remain largely unexplored. This study is formulated as a comparative analysis to scrutinize the efficacy of the finetuned Prithvi geospatial foundation models against a supervised convolutional neural network trained from scratch for semantic segmentation of mangrove forests and pond aquaculture under varying levels of data availability and domain shift. …

Multidimensional Analysis Of Human Outdoor Comfort: Integrating Just-In-Time Adaptive Interventions (Jitais) In Urban Digital Twins, Binyu Lei, Pengyuan Liu, Kunihiko Fujiwara, Mario Frei, Clayton Miller, Xuan Yun Chua, Filip Biljecki

Research Collection College of Integrative Studies

How can bidirectional information exchange be enhanced in urban digital twins, and support human-centric data and processes? Their key characteristic is the nearly real-time exchange of information, allowing adjustments to physical environments based on simulations and analytics within virtual models. Yet, achieving such interaction remains challenging, particularly regarding device deployment and infrastructure development. Embracing the concept of humans as sensors, this work develops a two-way framework based on the emerging concept of just-in-time adaptive interventions (JITAIs), exploring how urban digital twins can play a role in understanding and enhancing human comfort outdoors. Human comfort outdoors is inherently spatio-temporal and personalised, …

How Do You Fix Knowledge In Place? Digital Nomads And Infrastructural Stickiness, Emma Grimley, Prerona Das, Orlando Woods, Lily Kong

Research Collection College of Integrative Studies

Remote work has become increasingly accessible due to the growing acceptance of remote work arrangements following the COVID-19 pandemic. Some state actors, especially in countries which face a shortage of digital talent and have reputations as leisure-tourism destinations, have begun considering the opportunities for digital transformation or workforce upskilling that highly skilled remote workers may offer. This paper develops the case of remote workers in Thailand to argue that infrastructural stickiness is a critical determinant for effective knowledge transfer to occur. By infrastructural stickiness we refer to the regulatory and socio-material infrastructures that both attract and retain international remote workers …

Data-Driven Methodologies For Mapping Cultural Heritage: The Case Of The National Coal Heritage Area, West Virginia, Usa, Hossain Mohammad Nahyan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this dissertation was to develop a comprehensive, data-driven spatial framework for characterizing the complex cultural landscape of the National Coal Heritage Area (NCHA) in West Virginia. By transitioning away from traditional, heuristic spatial mapping, this research integrates advanced spatial statistics, machine learning, and GIS-based methodologies to objectively quantify the physical, visual, and cultural dimensions of the post-mining environment. The research is structured around three interconnected empirical studies, each addressing a specific scale of the Landscape Character Assessment (LCA) framework to support heritage conservation and sustainable spatial planning. The first paper focused on landform classification, developing an automated …

Submesoscale Dynamics Of Phytoplankton And Carbon Export Revealed By High-Resolution Airborne And Satellite Remote Sensing Of Currents And Ocean Color, Sarah E. Lang

Open Access Dissertations

Satellites and airborne sensors reveal submesoscale (1 - 10 km) variability in ocean color in the form of filaments, eddies, and patches. The variability in ocean color is closely tied to the physical dynamics that restructure phytoplankton distributions and drive active biological responses like changes in primary productivity and community structure. As the base of the marine food web and a key component of the biological carbon pump, phytoplankton are crucial to the overall health of marine ecosystems and to the ocean's role in climate. This dissertation focuses on the use of airborne and satellite remote sensing to study the …

Walking In The Footsteps Of My Ancestors: A Deep Map Of Cherokee Forced Removal, Deborah Lyn Kirk

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this study of the place of Cherokee forced removal, I use a Third Space approach to blend Indigenous Methodologies, Deep Mapping, Geospatial mapping and analysis, and 3D Geography. Using a hybrid platform that provides a mélange of media types, storytelling forms, and interactive tools, I reimagine and retell the story of the Cherokee “Trail of Tears.”

In accordance with Cherokee philosophies of duyuktv, harmony, and “a good mind” I first sought out Cherokee sponsorship from community respected and culturally knowledgeable Cherokee citizens; partnered with the National Trail of Tears Association (NTOTA); submitted my research proposal to the Cherokee …

Remote Sensing Of Particulate Organic Carbon And Phytoplankton Carbon In The Northern South China Sea, Xiaoju Pan, Tung-Yuan Ho, George T. F. Wong, Jen-Hua Tai, Lijuan Nie

OES Faculty Publications

Surface concentrations of particulate organic carbon (POC) and phytoplankton carbon (C_phy) in the northern South China Sea (NSCS) have been assessed successfully by remote sensing with appropriate regional tuning. Match-up comparisons between satellite derivations and field observations showed uncertainties of ± 28.5% for POC and ± 37.0% for C_phy. The satellite-derived climatological distributions are consistent with previous reports. In the open NSCS where phytoplankton growth is controlled primarily by the convective overturn, both POC and C_phy are higher in winter, associating with the effect of stronger northeast monsoons and surface cooling, than in summer, when …

Geospatial Investigations Of Big Buckhead Cemetery, Millen, Ga, Audrey E. Popard

College of Graduate Studies: Theses & Dissertations

Geospatial investigations of burials are increasingly recognized as the most efficient and ethical means of determining grave locations in forensic and bioarchaeological research. A methodology of multi-tiered geospatial investigation has been applied to the Big Buckhead Baptist Church cemetery in Millen, GA. Using the systematic layering of geospatial technologies, the present study seeks to identify ground surface anomalies, with the objective of delineating known and potential unknown burial locations. It is hypothesized that the layered use of Light Detection and Ranging (LiDAR), Geographic Information Systems (GIS), and Ground Penetrating Radar (GPR), will allow for the most efficient and accurate demarcation …

Food Access Disparities In Fulton County, Georgia: Examining Structural Barriers And Community-Level Determinants, Paige J. Perry

College of Graduate Studies: Theses & Dissertations

Food insecurity remains a significant public health issue affecting communities at global, national, and local levels, including Atlanta, GA. Despite being an affluent and rapidly growing urban area, disparities in food access persist across Fulton County. This study examines the structural, demographic, and socioeconomic factors associated with food access at the census tract level. Using quantitative analysis, the study evaluates how geographic location, population characteristics, transportation access, and economic conditions influence the likelihood of low food access. Findings highlight significant disparities linked to transportation availability, demographic composition, and geographic variation within the county. These results underscore the importance of addressing …

An Ex-Post Analysis Framework For Assessing The Effectiveness And Driving Factors Of Green Building Certification Adoption: A Case Study Of Singapore, Hao Gu, Xiaoyu Jin, Fu Xiao, Maomao Hu, Clayton Miller

Research Collection College of Integrative Studies

Cities worldwide are adopting green building certification policies to meet sustainability and decarbonization targets in the building sector. However, the effectiveness of green certifications remains contested due to the difficulty of decomposing multiple influencing factors on building energy consumption. This study proposes an econometrics-based ex-post analysis framework to assess the effectiveness of green building certification policies in energy savings and identify driving factors by decomposing multiple influential factors. The proposed framework incorporates time-fixed effect models to examine factors driving the adoption of green building certifications, and causality analysis to quantify the effectiveness. Applying the framework to analyze a panel dataset …

Mapping Climate Risks & Building Resilience: A Participatory Approach To Harvester Safety In Kakisa, Nwt., Susan Kerubo Ombwori

Theses and Dissertations (Comprehensive)

The Ka’a’gee Tu First Nation (KTFN) community in the Northwest Territories is experiencing rapid environmental changes which are driven by climate change. These changes are threatening the community’s food security. The community is seeing a disruption to its traditional land-based food systems due to increasing climate risks such as unpredictable weather, thawing permafrost, wildfires, and flooding. These changes are reducing access to traditional foods and intensifying threats to harvester safety. Building on the existing relationship with the community through previous projects, this thesis examines the impacts of climate risks on the availability and access of the KTFN’s on the land …

Modern Day Saints And The Production Of A Contemporary Pilgrimage Site: Comparative Analysis Of St. Pio Of San Giovanni Rotondo, Italy And Sai Baba Of Shirdi, India, Kiran Shinde, Anna Trono Prof

International Journal of Religious Tourism and Pilgrimage

Places valorised by saints have attracted pilgrimage for a long time as devotion to saints is a way to achieve both material wellbeing and spiritual growth. Yet, the cult following of modern-day saints in contemporary societies has become a topic for exploration only in recent years (Di Giovine, 2010; Shinde & Pinkney; 2013, Srinivas, 2008). A few excellent hagiographies discuss the material and non-material world created around charismatic modern-day saints with global followership (Waghorne, 2004; Weiss, 2005; Shepherd, 1986). Given the immense popularity of modern-day saints many questions arise- what kind of pilgrimage landscape is created around them? Are they …

Governing By Fragments: Soviet Ruins And The Architecture Of Unaccountability In Kazakhstan, Robert A. Kopack, Magdalena E. Stawkoski

Faculty Publications

This article examines two case studies in Kazakhstan with research into how Soviet institutional legacies underwrite extractive economies that render toxic costs invisible in post-Soviet setting. Through ethnographic work in Stepnogorsk (uranium processing) and the Semipalatinsk Test Site (nuclear weapons testing), we extend Gabrielle Hecht’s residual governance framework to demonstrate how inherited bureaucratic compartmentalization now serves market rather than state interests. We introduce the concept of functional nonreform to describe how distributed actors maintain Soviet-era boundaries that prevent accountability: Agencies monitor but don’t enforce, health authorities lack jurisdiction over contaminated sites, and environmental agencies measure radiation but cannot restrict land …

Drag’S Impact On Drag Lives, José L. Oropeza Iii

Anthós

Drag’s Impact On Drag Lives

In light of recent political developments where Drag and Trans identities are being punished, why do people still participate in Drag? If there are repercussion to face for being a Drag Queen, then surely it must affect their lives for the better for them to continue the practice.

Through an autoethnographic approach to researching the Portland, OR Drag community, I collected transcripts of conversations with local Queens, took notes of community interactions, and put myself in Drag for the first time as a Queer man to better understand the Drag community and why they Drag. …

Repairing Estranged Death: Care, Politics And Ecology In The Us Funeral Industry, Cecilia Catherine Rodriguez

Cal Poly Humboldt theses and projects

The industrialization of death practices in the US has separated humanity from natural cycles while centering white settler colonial norms that marginalize other cultural ways of caring for the dead. Through necropolitics, the contemporary death industry embodies capitalist values of commodification and a monopolization of care, separating death from community and its ecological cycles. Black and Indigenous feminist knowledges understand death as not a discrete event but instead as an ongoing process that shapes our relationships with both the human and more-than-human worlds. Engaging with feminist political ecologies, I extend a conversation about care and repair to contemporary death practices …

Mapping Robusta Coffee (Coffea Canephora) Cropping Systems In Uganda: A Two-Step Pixel And Sub-Pixel Based Approach With Sentinel-2 Data, Getachew Kebede, Bester Tawona Mudereri, Onisimo Mutanga, Tobias Landmann, John Odindi, Natacha Motisi, Fabrice Pinard, Henri E.Z. Tonnang, Elfatih M. Abdel-Rahman

All Peer-Reviewed Publications

Coffee is a highly valued commodity and a widely consumed beverage, playing an important role in global trade. However, coffee farming landscapes are increasing transitioning into smaller-scale agricultural setups. This transformation highlights the critical need for accurate classification and mapping of coffee cropping systems (CS), especially in countries like Uganda, where dense vegetation and complex terrain present substantial challenges to traditional land survey methods. Moreover, understanding the spatial distribution of Robusta coffee (Coffea canephora) CS is essential for developing site-specific management strategies, guiding extension services, and informing evidence-based policy decisions. To address this gap, the present study aimed to enhance …

The Implementation Of An International Treaty Across A Small Island Developing State: The United Nations Convention On The Elimination Of All Forms Of Discrimination Against Women (Cedaw) In Cabo Verde, Lydia Landim

Graduate Doctoral Dissertations

The UN Convention on the Elimination of all Forms of Discrimination Against Women (CEDAW) was adopted by the UN General Assembly in 1979. To date, it is the most comprehensive international treaty for women’s rights. Cabo Verde, a small island developing state located off the west coast of Africa, ratified CEDAW in 1980. As an archipelago, Cabo Verde serves as a unique case study for treaty implementation, particularly, as literature on small island developing states has established that these states face unique challenges when it comes to implementation of laws, policy, and to governance overall, all of which heavily intersect …

Adapting To Aridity: Crop Production Trends Among Smallholder Farmers In Iramba District, Tanzania, Nashokigwa Shalua, Digna Wolfram Mlengule, Johnstone M. Andrea

Tanzanian Economic Review

Increasing crop production amid recurrent droughts remains a critical challenge for smallholder farmers in the semi-arid Iramba District; however, empirical evidence on crop production remains scarce. This paper analysed trends in crop production in Iramba District from 1995 to 2024. Mixed methods were used, and data were collected through structured interviews, focus group discussions, field observations, in-depth interviews and document reviews. Quantitative data were analysed using descriptive statistics while qualitative data were thematically analysed. The results indicate that 84.2% (n=95) of the households showed an increase in crop yields despite concurrent severe drought. Sunflower, maize, bulrush millet, and sorghum were …

Artificial Intelligence As A Catalyst For Systemic Sport Ecology, Ugo Arbieu, Laís Carneiro, Sonia Tieo, Franck Courchamp

Journal of Applied Sport Management

Artificial intelligence (AI) is reshaping both sport management and environmental science, yet these developments have largely evolved in parallel. AI can serve not merely as a technical tool but also as a catalyst for systemic sport ecology, a field that integrates sport, digital innovation and environmental sustainability. Advances in discriminative, generative and agentic AI enable the synthesis of complex ecological and sport-related data, improving monitoring, forecasting, resource efficiency, policy design, and decision-making across scales. In doing so, AI offers a pathway beyond fragmented sustainability interventions and can support holistic approaches to the interconnected crises of climate change, pollution, and biodiversity …

Research Advances On Foreign Portfolio Investments: A Bibliometric And Thematic Analysis, Ritu Sapra, Dixit Yadav, Kamal Upreti, Nishant Kumar, Rituraj Jain, Akhilesh Tiwari

Markets, Globalization & Development Review

Foreign portfolio investments have been at the center of research in the finance, economics, and international business domains since the early 1990s when developing economies started to relax their capital account and allowed the entry of foreign investments. Over the years, various macroeconomic (country-specific and global), firm-specific, and quality factors have been studied as determinants in relation to these flows, Still, there is no consensus regarding which factor influences more than the others. This paper uses bibliometric analysis to understand the existing literature to build a solid conceptual base in this research topic. For this study, bibliometric data of 731 …

Building Bridges: Industrial Trade Unions In A Changing Climate, Nicole Möller

Dissertations - ALL

This dissertation examines how German industrial trade unions and workers in the automobile and coal industries navigate the profound challenges of the green transition. Workers’ experiences are situated within a broader political-economic context shaped partly by market-led decarbonization efforts, welfare retrenchment/austerity, erosion of progressive institutions in society, and global competition, as well as a global restructuring of value accumulation. The analysis critically engages with unions’ current responses to a market-led transition and their implications for labor’s future. The dissertation develops its argument across three empirical chapters. Chapter 2 investigates workplace-level changes in coal mining and automobile production, analyzing how workers …

Multi-Satellite Image Matching And Deep Learning Segmentation For Detection Of Daytime Sea Fog Using Gk2a Ami And Gk2b Goci-Ii, Jonggu Kang, Hiroyuki Miyazaki, Seung Hee Kim, Menas Kafatos, Daesun Kim, Jinsoo Kim, Yangwon Lee

Institute for ECHO Articles and Research

Traditionally, sea fog detection technologies have relied primarily on in situ observations. However, point-based observations suffer from limitations in extensive monitoring in marine environments due to the scarcity of observation stations and the limited nature of measurement data. Satellites effectively address these issues by covering vast areas and operating across multiple spectral channels, enabling precise detection and monitoring of sea fog. Despite the increasing adoption of deep learning in this field, achieving further improvements in accuracy and reliability necessitates the simultaneous use of multiple satellite datasets rather than relying on a single source. Therefore, this study aims to achieve higher …

Gis Librarians' Involvement In Critical Information Literacy Instruction, Melissa Chomintra, Pete E. Pascuzzi

Libraries Faculty and Staff Scholarship and Research

Critical information literacy (CIL) is a theory and practice that considers the sociopolitical dimensions of information and knowledge production. As the field of geospatial information evolves, equipping librarians with the skills to critically engage with geospatial information becomes integral to facilitating informed research, promoting spatial literacy, and strengthening the accessibility of geospatial data for their user communities. To understand geospatial data librarians’ current involvement in CIL, librarians were surveyed to examine if they incorporate CIL into their instruction, how they incorporate CIL into their instruction, and what are the benefits and challenges of doing so. The survey gathered both quantitative …

Marooned: A Western Frontier Dismal Swamp Narrative, Professor Meya E. Hargett

The Scholarship Without Borders Journal

Marooned: A Western Frontier Dismal Swamp Narrative centers the erased figure of Samuel Mars, a lost Black station master whose movements through the Great Dismal Swamp have been excluded from dominant Underground Railroad cartographies. Here, the term “Marooned” refers not to abandonment, but to the maroon geographies of Black and Indigenous resistance encoded in land, lineage, and fugitive infrastructure.

Guided by Diasporic Maroon Memory Theory, Lineage as Method, and the Maroon Geographies Framework, this research reconstructs Mars’s trajectory through oral testimony, spatial patterning, and ancestral land memory. Rather than casting the Dismal Swamp merely as a site of refuge, this …

Spatial Conversations: Opportunities To Share Geographic Knowledge, L. Jesse Rouse, Barbara L. Maclennan, Susan J. Bergeron, H. Franklin Lafone

Anthropology and Geography

For more than twenty years geographers have taken advantage of “new media” to share information, make connections, and expand the “spatial conversation.” As blogs opened the door for informal self-publishing and communicating about narrow, focused topic areas, geographers began to use emerging media platforms to present ideas to a broader audience, more quickly and interactively, as new data and technologies became available. Audio podcasts and videos broadened the platforms for dissemination and provide a greater level of immersion through digital media. Between the open publishing and subscription opportunities, and interaction provided through comments and social media engagement, a dialectic was …

China’S Influence Over The Mining Industry In Africa, Safa M. Altamimi, Reda Amer

Undergraduate Research Symposium

How much influence does China have over the international supply of minerals from Africa? The purpose of this research is to study China’s involvement in Africa’s mining industry and analyze its impact on US economic interests. China has traded and invested in many mining sites across Africa; However, I will be focusing on DRC, Zambia, and Zimbabwe for my research. Using ArcGIS pro tools, I will create and analyze a map that contains information about mineral deposits and facilities.

Towards Spatial Inversion Of Aerial Gamma-Ray Survey Data For Measurement Of Naturally Occurring Radioactivity, Daniel A. Haber

UNLV Theses, Dissertations, Professional Papers, and Capstones

Aerial gamma-ray surveying (AGRS) is used in geologic and environmental contexts to provide data on the surface spatial distribution of naturally occurring radioactive material (NORM) or other gamma-ray-emitting isotopes. The standard data reduction workflow for AGRS data involves a process whereby pointwise gamma-ray spectral data are denoised, corrected for numerous sources of background radiation and aircraft height, and are finally converted to physical values by empirical conversion factors. The reduced pointwise data are then typically spatially interpolated to form a continuous surface map.

This dissertation introduces and explores a novel spatial inversion method for reduced AGRS data that considers aircraft …

The Chemistry Of Color: A Comparative Analysis Of Natural And Synthetic Dyes In Textile Application, Caitlyn Pinaga Cpht

Honors Program Theses and Research Projects

The Chemistry of Color: A Comparative Analysis of Natural and Synthetic Dyes in Textile Application examines how color functions at the intersection of chemistry, culture, and environmental responsibility. This project traces the evolution of dyeing from ancient natural pigment traditions, rooted in ecological knowledge, agricultural practices, and cultural identity, to the industrial rise of synthetic dyes, whose laboratory precision enabled unprecedented consistency, brightness, and global textile expansion. Through experimental swatch analysis, the study compares the behavior of natural dyes derived from plants and food sources with modern fiber-reactive and synthetic dye classes on a range of fibers including cotton, bamboo …