Geography Commons^™

Satellites, Urban Heat, And Environmental Justice: Community As The Bridge Between Analysis And Action, Joshua B. Fisher, Ambar Rivera, Ava Cison, Ashley Agatep, Kainani Tacazon, Sophia Spiegleman, Alison Mckenery, Rio E. Fisher, Reginald Archer, Jason A. Douglas

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Heat waves are increasing in frequency, intensity, magnitude, and duration, causing a disproportionate impact on marginalized communities exposed to urban heat islands. Newly emerging spaceborne thermal sensing instruments, such as ECOSTRESS and Hydrosat, now have the capabilities to measure urban surface temperatures accurately at the block level (< 100 m) and with enough frequency to capture transient heat waves (daily to subweekly). Such data are critical for monitoring and informing policy and mitigation efforts, such as resurfacing, green space, cooling stations, and medical mobilization. These serve to advance environmental justice and reduce health risks—and deaths—among the most vulnerable: minority, low-income, elderly, those with physical- and mental-health preconditions, unhoused, children, and outdoor workers. While scientists have increasingly used satellite data to quantify urban heat islands and risks to communities, there remains a significant gap in action resulting from such analyses—a figurative and literal “valley of death.” Reviewing over 500 scientific publications, we identify a critical lack of engagement with the communities being analyzed (10.9%; n = 58); yet, community engagement is key to bridging such analysis with subsequent action. Here, we demonstrate how participatory community engagement directly with data and analysis leads to increased policy changes and mitigation efforts. Our framework has immediate implications for how scientists may augment their work and thought processes to achieve …

Validating Uas-Based Ndvi Data With Satellite Landsat Imagery For Bald Eagle Habitat Prediction In The Del Rio Springs Ecosystem, Noah Morales, Ronny Schroeder, Elise Anderson

Student Works

Vegetation health is commonly assessed using the Normalized Difference Vegetation Index (NDVI), which can be derived from multispectral sensors operating at different spatial resolutions. Validating NDVI products across sensor platforms is essential to determine their reliability for environmental monitoring and habitat assessment. This research compares NDVI derived from moderate-resolution satellite imagery and high-resolution unmanned aircraft system (UAS) imagery collected over the same study area. Landsat imagery, provided through the joint USGS–NASA mission, was used to represent satellite-based vegetation patterns, while high-resolution multispectral data were acquired using a MicaSense sensor mounted on a UAS to capture fine-scale vegetation detail.

NDVI values …

Prediction Of Methane Gas By Using Hyperspectral Imageries And Remote Sensing Techniques, Aysha Ali Alharmasi Alhajeri

Thesis/ Dissertation Defenses

Greenhouse gases is important for sustaining life on earth as well as in mitigating climate change. Methane (CH4) is considered as one of the most important critical gases for the global climate change and have significant influences on our life. Accordingly, the prediction of this greenhouse gas emissions is very important for avoiding the climate change effects and to maintain environmental sustainability. The objective of this study is to explore the potential applications for remote sensing to predict methane levels in the Earth’s atmosphere with a combination of local ground data and data from hyperspectral satellite imagery. By using hyperspectral …

Artemisinin Partial Resistance Mutations In Zanzibar And Tanzania Suggest Regional Spread And African Origins, 2023, Sean V. Connelly, Julia G. Muller, Mohamed Ali, Billy E. Ngasala, Wahida Hassan, Bakari Mohamed, Kyaw L. Thwai, Jacob M. Sadler, Jacob Marglous, Abebe A. Fola, Abdallah Zacharia, Shija J. Shija, Safia Mohammed, Dominick C. Msolo, Hamza Said, Editruda E. Peter, Melic Odas, Isaack J. Rutha, Mwanaidi Nwange, Karamoko Naire, Shazia Ruybal-Pesántez, Robert Verity, Rebecca Crudale, Varun Goel, Barbara B. Choloi, Anders Björkman, Jeffrey A. Bailey, Jessica T. Lin, Jonathan J. Juliano

Faculty Publications

Artemisinin partial resistance, driven by Plasmodium falciparum K13 mutations, threatens malaria control. Zanzibar is vulnerable to artemisinin partial resistance spread but lacks recent molecular surveillance. We sequenced samples in Zanzibar and mainland Tanzania collected from 2022 to 2024. K13 mutations were found in 2 of 1440 participants (P441L, A675V) in Zanzibar and 6 of 3762 (R561H, P441L) in mainland Tanzania. Based on whole genome sequencing data, K13 mutations appear to be of African origin with regional spread. Frequent parasite importation appears to maintain partner drug mutation frequencies similar to the mainland, where artemether-lumefantrine selects for mutations favoring artesunate-amodiaquine sensitivity. Ongoing …

Beyond "Place Matters": Making Spatial Analysis Accessible With Dashboard-Driven Geography, Stephen Borders

Public Health

This article presents an instructional module that uses Tableau to teach spatial thinking and policy geography through an analysis of Supplemental Nutrition Assistance Program (SNAP) participation. Tableau’s ability to integrate custom spatial files with demographic and health data makes it an accessible platform for introducing geographic inquiry without requiring specialized GIS expertise. The lesson guides instructors through building maps, bullet charts, and scatterplots that highlight gaps between eligibility and enrolment, while connecting food insecurity to health outcomes. By lowering technical barriers, Tableau provides a pedagogical bridge that helps educators foster spatial literacy in diverse classroom contexts.

This article was published …

Post-Wildfire Water Quality And Aquatic Ecosystem Response In The U.S. Pacific Northwest: Science And Monitoring Gaps, Sara Wall, Jana E Compton, Ashley A. Coble, Beth M. Haley, Jiajia Lin, Allison Myers-Pigg, Justin Reale, Katie Wampler, Kevin D. Bladon, Kurt Carpenter, Heejun Chang, Multiple Additional Authors

Geography Faculty Publications and Presentations

An increase in the occurrence of large, high severity wildfires in the western Pacific Northwest (PNW), USA, has created an urgent need for science to better inform forest management and policy decisions to maintain source water quality in the region. The western PNW faces similar challenges to other regions with shifting wildfire regimes and large population centers reliant on surface water from forested catchments. However, the uniquely wet and highly seasonal climate of the western PNW suggests that findings from other, more frequently burned regions may not be directly applicable. To identify science, monitoring, and management gaps and opportunities in …

The Hottest Areas In U.S. Cities Are Losing The Most Greenery, Yunjae Ock, Vivek Shandas

Geography Faculty Publications and Presentations

Due to the significantly increasing impacts of urban heat, cities are seeking to expand tree canopy, parks and other forms of greenery to reduce temperatures. Despite these efforts, few studies have examined the relationship between neighborhood-scale thermal conditions and changes in green spaces. The present study drew on high-resolution, near-surface air temperature measurements in 33 U.S. cities to answer two research questions: (1) to what extent did these cities’ greenery change from 2013 to 2022? and (2) did these study areas have an increase in greenery within neighborhoods exhibiting the hottest air temperatures? Results suggest that 72.7% of cities are …

The World's Largest Saddle Dam At Risk: Multisensor Geohazard Analysis And Downstream Impacts, Hesham El-Askary, Hesham Morgan, Surendra Maharjan, Ali Elgendy, Wenzhao Li, Rejoice Thomas, Austin Madson, Cyril Rakovski

Mathematics, Physics, and Computer Science Faculty Articles and Research

The Grand Ethiopian Renaissance Dam (GERD) Saddle Dam, which holds approximately 89% of the main reservoir's live storage, is one of the largest and most critical auxiliary dams globally; its construction on Ethiopia's Blue Nile has consequently raised significant regional and international concerns regarding potential environmental impacts and geohazard risks. This study presents a comprehensive risk assessment of the GERD Saddle Dam by integrating high-resolution satellite data (GRACE, Sentinel-1, Sentinel-2, WorldView-3), hydrological modeling (SWAT), Persistent Scatterer Interferometry (PSI), geospatial analysis, and advanced statistical techniques. The results highlight critical structural vulnerabilities, including groundwater infiltration estimated at approximately 41 ± 6.2 billion …

Understanding The Epidemiology Of Malaria In Zanzibar Through Molecular And Serological Analysis Of Samples Collected During Reactive Case Detection, Vanrun Goel, Wahida Hassan, Caroline Murphy, Barbara B. Choloi, Mohamed Ali, Shija J. Shija, Jeffrey A. Bailey, Anders Björkman, Billey E. Ngasala, Eric Rogier, Jonathan J. Juliano, Jessica T. Lin

Faculty Publications

Background

The Zanzibar archipelago has been a pre-elimination region for malaria thanks to rigorous control interventions, but recent surges in malaria cases have been observed. The contribution of non-falciparum species to the current malaria situation is unknown.

Method

This study investigates the epidemiology of falciparum and non-falciparum malaria species in Zanzibar. Leveraging plasma extracted from dried blood spots (DBS) collected during reactive case detection (RCD) activities across Unguja island from May 2022 to January 2023, we measured immunoglobulin G (IgG) responses to Plasmodium MSP1-19kD antigens using a multiplex bead-based immunoassay. Additionally, active infections were detected using species-specific real-time PCR.

Results …

Evaluating Climatic Niche Suitability For Bos Javanicus Reintroduction In Cagar Alam Pananjung Pangandaran Using Maxent And Native-Habitat Benchmarks From Ujung Kulon And Alas Purwo, Azhari Al Kautsar, Masita Dwi Mandini Manessa

Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments)

The Javan banteng (Bos javanicus) persists on Java mainly in a small number of protected-area strongholds, making robust climatic niche characterization important for conservation planning and for evaluating potential management or restoration targets. Here, we modeled banteng climatic suitability in southwestern Java using a MaxEnt (maxnet) framework calibrated with bioclimatic predictors from CHELSA and benchmark occurrence records from extant populations in Ujung Kulon National Park (UKNP) and Alas Purwo National Park (APNP). To contextualize transferability to non-occupied protected habitat, we also projected suitability to Cagar Alam Pananjung Pangandaran (CAPP) and quantified environmental novelty using the Multivariate Environmental Similarity Surface (MESS). …

Analysis Of Superior Economic Potential In South Tangerang City With Banten Province Comparator Using Location Quotient, Dynamic Location Quotient, And Shift Share Analysis Methods, Muhammad Qabus Abid Khairullah, Rastika Widiastuti, Cindy Adria Ananda Putri, Hayuning Anggrahita

Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments)

Gross Regional Domestic Product (GRDP) is a key indicator for understanding regional economic structure and dynamics. Differences in sectoral contributions reflect levels of specialization, competitiveness, and growth potential, making comparative and dynamic sectoral analyses essential for regional development planning. This study aims to identify leading, supporting, potential, and lagging economic sectors using Location Quotient (LQ), Dynamic Location Quotient (DLQ), and Shift Share Analysis by comparing the economic performance of South Tangerang City with Banten Province. The analysis is based on GRDP at constant prices by industrial sector for the period 2019-2023. LQ is applied to identify sectoral comparative advantages, DLQ …

"We're Going To Tear Up The Caldera So We Can Have An Electric Car": Wrestling With Prospective Lithium Mining In The Oregon Desert, Elizabeth Bartholomew, Alida Cantor, Kate Berry, Noel Vineyard

Geography Faculty Publications and Presentations

Extraction of lithium, a key ingredient for renewable energy transitions, is a land- and water-intensive process. In this study, we use qualitative, place-based research to explore socio-environmental imaginaries surrounding a landscape on the verge of change due to lithium mining. We examine the ways that different actors are wrestling with the costs, benefits, and uncertainties of potential open-pit lithium mining in Oregon’s section of the McDermitt Caldera. In contrast to previous research which has described support for mining amongst those closest to the mine site, we find that in this case, perceptions of mining are characterized by ambivalence, uncertainty, and …

Deep Learning Style Transfer For Enhanced Smoke Plume Visibility: A Standardized False Color Composite (Sfcc) In Gems Satellite Imagery, Yemin Jeong, Seung Hee Kim, Menas Kafatos, Jeong-Ah Yu, Kyoung-Hee Sung, Seung-Yeon Kim, Goo Kim, Jae-Jin Kim, Yangwon Lee

Institute for ECHO Articles and Research

Wildfire smoke visualization using geostationary satellite imagery is essential for real-time monitoring and atmospheric analysis; however, inconsistencies in color tone across Geostationary Environment Monitoring Spectrometer (GEMS) images hinder reliable interpretation and model training. This study proposes a Standardized False Color Composite (SFCC) framework based on deep learning style transfer to enhance the visual consistency and interpretability of wildfire smoke scenes. Four tone-standardization methods were compared: the statistical Empirical Cumulative Distribution Function (ECDF) correction and three neural approaches—ReHistoGAN, StyTr2, and Style Injection Diffusion Model (SI-DM). Each model was evaluated visually and quantitatively using six metrics (SSIM, LPIPS, FID, histogram similarity, ArtFID, …

Geospatial Analysis Of Urban Heat Islands And Heat Vulnerability In Chattogram, Bangladesh: Implications For Public Health Risks, Mst Sanjida Alam

Student Publications [Scholarly]

Rapid urbanization and land use change are intensifying the Urban Heat Island (UHI) effect and its associated health risks. It is the most common problem in the cities across the Global South. Chattogram the second-largest city in Bangladesh that has highly urbanized and experiencing transformation of croplands and vegetation into impervious surfaces. The changes contribute to the increase in the surface temperature and vulnerability of urban residents. This study aims to determine spatiotemporal patterns of UHI between 2011 and 2024 and the Heat Vulnerability Index (HVI) for 2024 and its associated health risk of Chattogram District. The HVI was developed …

The Rise Of Brownfield Mining Is Reshaping Global Mineral Supply And Intensifying Social And Environmental Risk, Deanna Kamp, Julia Loginova, Alex M. Lechner, Michelle Li Ern Ang, Riska A. Kuswati, Muhamad Risqi U. Saputra, Corinne Unger, Anthony J. Bebbington, John R. Owen

Geography

Global mineral demand is rising faster than supply growth, driven by efforts to scale renewable energy, transport, digital, and defense infrastructure. Yet, new mine commissioning has slowed, with production growth sustained by “brownfield” mining—expanding and intensifying extraction at existing sites. Because mine expansion is considered routine industry practice, questions about the global scale and scope of brownfielding are not prominent in public discussion or scientific research, limiting our understanding of its socioecological risks. Here, we leverage global production, exploration, and capital-expenditure data from 1998 to 2024 to uncover a decade-long acceleration in brownfield mining. We identify 366 brownfield mines, with …

Geopolitical Ecologies Of Cloud Capitalism: Territorial Restructuring And The Making Of National Computing Power In The Us And China, Justin Kollar, Sol Andrew Stokols

Research Collection College of Integrative Studies

As computing power becomes central to geopolitical rivalry, cloud infrastructure is increasingly framed as critical to national security, economic resilience and technological sovereignty. Current debates often focus on global competition – especially between the U.S. and China – highlighting strategic investments, export controls and infrastructure diplomacy abroad. Yet far less attention has been paid to the domestic territorial transformations that make such geopolitical projection possible. This paper argues that national strategies for AI and cloud dominance depend on the reorganization of land, energy and regulatory systems to sustain large-scale computation. Using a geopolitical ecology framework, we examine how the U.S. …

A Student-Centered Gis Classroom: Second Chances And Real-World Practice Teaching Portfolio For Nres218 Introduction To Geospatial Technologies, Ran Wang

UNL Faculty Course Portfolios

This course portfolio documents the design, implementation, and reflection of NRES218 Introduction to Geospatial Technologies, an introductory undergraduate geographic information system (GIS) course. This course aims to integrate basic and applied sciences to help students develop spatial thinking and spatial analysis skills for proposing spatial science–oriented solutions. Instructional strategies emphasize experiential learning through structured laboratory exercises and outdoor field activities that connects real-world observation with GIS analysis. To support student learning and persistence, the course also incorporated flexible assessment practices, including second-chance exams. Reflection on student engagement and performance revealed that while these strategies were highly beneficial for some students, …

Research Journal 2026: People And Places, José A. Rivera Ph.D

Faculty Publications

José Rivera narrates his life history from adolescence into college years, university teaching, research career, publications, and ends with post-retirement service as a giving back to community. For most of his term as an academic, his research focus was on community-based organizations that he terms “peoples’ institutions”: acequia associations and mutual help societies. For data, he conducted field work in New Mexico and the American Southwest as well as internationally, primarily in Mexico, Peru, Spain and the Philippines. While at these locations, he interviewed people, collected maps, researched archives, and took photographs as ethnographic evidence of people and places. His …

Montana On Screen: Exploring Film Tourism In Montana, Kika Bradford, Elena Bigart, Melissa Weddell

Institute for Tourism and Recreation Research Publications

This report presents a study exploring how film and TV show exposure influences tourism to Montana, a state long celebrated for its cinematic landscapes and Western heritage. Using data from an online survey of 311 visitors who had both watched a Montana-related production and visited a filming location in the past five years, the research examines visitor profiles, motivations, travel behaviors, spending, and perceptions.

2026 Montana Tourism Outlook – Sales Tax: Is It Time? Montana Economic Seminar Presentation, Melissa Weddell

Institute for Tourism and Recreation Research Publications

No abstract provided.

The Affective Economy Of Toxic Atmospheres: Sensory Governance, Ecological Intelligences And The Performative Politics Of Urban Mosquito Management, Orlando Woods, Creighton Connolly

Research Collection College of Integrative Studies

This paper considers how atmospheres can play a powerful role in troubling the management of nature in the multispecies city. It brings the cyclical nature of atmospheric effects, the affective values and il/logics that determine human responses to non-human threats, and the misguided and potentially deleterious health outcomes that ensue into one analytical frame. Drawing on the empirical case of urban mosquito management in Singapore, it considers how the creation of toxic atmospheres through fogging – blowing insecticides into the air in a bid to kill mosquitoes – is ineffective and sets in motion a cascading series of socio-environmental consequences. …

Beyond Resilience: The Case For Regenerative, Restorative Cities, Lily Kong

Research Collection School of Social Sciences

In a commentary, SMU President Professor Lily Kong mentioned that at the City Dialogues event, co-convened by SMU and Urban Innovation Vienna, participants agreed that cities must equip their residents to withstand shocks and thrive in an evolving urban environment. Prof Kong said resilient cities anticipate, adapt and respond effectively to disruptions, which involves attention not only to physical infrastructure, but also to social cohesion and institutional foresight. She said that embedding sustainability into urban design is fundamental to ensuring cities flourish in a world of climate uncertainty and resource constraints. She added that the value of urban resilience lies …

Asia’S Future Will Be Won By Soft Power, Not Force, Lily Kong

Research Collection School of Social Sciences

Lily Kong argues that while force remains essential to deter aggression and manage worst-case scenarios, military strength may prevent defeat, but it rarely produces legitimacy. When hard power dominates the strategic imagination, volatility rises and markets suffer. Soft power – the ability to influence countries through persuasion, attraction and legitimacy – has become a strategic asset, she writes. It shapes expectations, lowers baseline tensions, and creates off-ramps in moments of crisis, often determining whether tensions escalate, how long crises last, and how much economic damage they inflict. Prof Kong believes that in a nuclear-armed, economically interdependent Asia, the real test …

Prediction Of Methane Gas By Using Hyperspectral Imageries And Remote Sensing Techniques, Aysha Ali Alhajeri

Theses

Greenhouse gases is important for sustaining life on earth as well as in mitigating climate change. Methane (CH4) is considered as one of the most important critical gases for the global climate change and have significant influences on our life. Accordingly, the prediction of this greenhouse gas emissions is very important for avoiding the climate change effects and to maintain environmental sustainability. The objective of this study is to explore the potential applications for remote sensing to predict methane levels in the Earth’s atmosphere with a combination of local ground data and data from hyperspectral satellite imagery. By using hyperspectral …

Finding Luis: A Creative Nonfiction Account Of Law & Society, Jason M. Leggett

Dissertations, Theses, and Capstone Projects

This essay explores the contradictions in legal theory and human experience through creative nonfiction. Its main purpose is to argue that a truly just society requires acknowledging the profound influence of individual narratives on the law. This is supported by blending personal narratives, critical analysis, and philosophical inquiry to reveal the gap between codified law and lived realities for marginalized individuals. This unique Legal Poetics methodology employs a series of six vignettes, such as the author's and Luis's shared experiences with traumatic brain injury and the denial of justice, as data. By integrating autoethnography, law as narrative, and performativity theories, …

Typeface: Machine-Viewing Gentrification On Storefront Imagery In Bedford-Stuyvesant, Brooklyn, Alexander Mcquilkin

Dissertations, Theses, and Capstone Projects

Gentrification—broadly, the replacement of a less powerful group by a more powerful one in an urban context—is oft-discussed in the popular press, but its definition is much-debated in the urban planning literature. Furthermore, academic treatments of displacement understandably focus on measurable yet fairly abstract indicators like changes in rent or income, whereas neighborhood change is often registered by residents on the ground using visual, but difficult-to-quantify markers like retail turnover. This project uses image recognition technology on a set of storefront photos to index the visual streetscape of a neighborhood, as well as to track changes to that portrait over …

Precarious Status, Essential Work: Migrant Labor, Social Reproduction, And The Politics Of Regularization In Covid Quebec, Jessie Lauren Stein

Dissertations, Theses, and Capstone Projects

This dissertation examines how migrant justice struggles in Quebec during and immediately after the COVID‑19 pandemic challenged and reshaped the cultural politics of membership in a neoliberal welfare state under strain. The research is centered on an ethnography of the Status for All campaign, a coalition effort spearheaded in Montreal to secure permanent immigration status for all people with precarious status in Canada. I situate pandemic‑era regularization efforts within overlapping crises of border governance, social reproduction, and federal–provincial relations. I argue that Quebec’s growing reliance on migrants with precarious status to sustain essential public social reproductive functions in care work, …

Kerentanan Kemiskinan Di Sulawesi Selatan: Analisis Vulnerability As Expected Poverty Dan Klaster Spasial, Nur Hilda Triany

Jurnal Ekonomi Kependudukan dan Keluarga

This study aims to analyze the determinants of poverty vulnerability in South Sulawesi by integrating spatial dimensions into risk estimation models. Using micro-data from the March 2024 National Socio-Economic Survey (Susenas) with individuals as the unit of analysis, this study applies the Vulnerability as Expected Poverty (VEP) and Local Indicator of Spatial Association (LISA) methods, estimated through an integrated logistic regression model. Empirical results indicate that while the average vulnerability is relatively low, risk distribution is highly concentrated in specific regional clusters. Key findings reveal that health insurance ownership and household assets are the dominant protective factors that drastically reduce …

Promoting Bromo Geological Heritage: Development Storymaps As Web Geographic Information Systems For Edutourism, Alfyananda Kurnia Putra, Batchuluun Yembuu, Diky Al Khalidy, Philipp Baidoo

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

Mount Bromo has the potential to be a Geological Heritage Site (Geosite) in learning Geography, but it is hampered by accessibility such as cost, risk, time, and other physical limitations. This study aims to develop and evaluate Web GIS Storymaps media for Geography learning. This research is Research and Development (R&D) with the ADDIE model, which consists of five stages, namely Analysis, Design, Development, Implementation, and Evaluation. The resulting product is “Edutourism Bromo Volcano”, a storymap-based learning media that can be accessed on various devices. The results of the evaluation showed that this media was “Very Feasible” by material and …

Student's Disaster Comprehension In Merapi Eruption Disaster Prone Area: A New Approach Of Measuring Disaster Preparedness Profile Toward Young Generation, Agus Dwi Febrianto, Muhammad Nursa'ban, Zahid Zufar At Thaariq, James Leonard Mwakapemba

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

The number of disaster incidents in Indonesia causes disaster risk reduction efforts in Indonesia, especially young people, to need to be optimally increased. The extent of efforts to improve the preparedness of the younger generation cannot be known without going through the initial identification of disaster preparedness based on the youth profile. This study aims to describe and identify the preparedness profile of young people based on disaster preparedness measurement instruments. The method used in this study is descriptive by presenting, describing, and analyzing further data to find new conclusions and discoveries by comparing several data. Data collection was carried …