Digital Commons Network^™

An International Perspective On Geography Curricula: Paving A Way Forward For Geographical Thinking, Tomáš Bendl, Hilde Storrøsæter, Lene Møller Madsen, David Trokšiar, Raphaële De La Martinière, Shanshan Liu, Sizakele Serame, Jerry T. Mitchell, Péter Bagoly-Simó, Yushan Duan, Gillian Kidman

Faculty Publications

Geographical thinking is a cornerstone of modern geography education. Despite its universal value, no large-scale international study has systematically examined its integration into diverse curricular documents. This study investigates how geographical thinking is embedded in the curricula of nine countries, focusing on content and procedural dimensions. Using a structured analytical framework, the research reveals significant patterns and gaps, particularly the underrepresentation of place as a central concept, the lack of explicit focus on geographical thinking, and the limited emphasis on its procedural dimension. The findings emphasise the need for stronger interconnections between these dimensions to promote a more comprehensive approach …

Shedding Light On Inequities Of Power Outages Through Data Transparency, Kelly A. Stevens, Sanam K. Aksha, Mohammad Siddiqur Rahman, Elizabeth Trader, Herbert Longenecker, Rebecca Entress, Thomas Wahl, Christopher Emrich, Kristopher O. Davis

Faculty Publications

In a changing climate, the electricity grid is increasingly exposed to more extreme weather that results in significant power outages. Further, lower income and racial-ethnic minority households are more likely to experience a higher frequency and duration of power outages compared to less socially vulnerable groups. The literature on the unequal impacts of power outages is a new, growing area of research that has been stymied in part due to the difficulty acquiring high spatial resolution, historical power outage data from utilities. In this Perspectives article, we review the availability of power outage data, and what can be learned from …

Shedding Light On Inequities Of Power Outages Through Data Transparency, Kelly A. Stevens, Sanam K. Aksha, Mohammed Siddiqur Rahman, Elizabeth Trader, Herbert Longenecker, Rebecca Entress

Faculty Publications

In a changing climate, the electricity grid is increasingly exposed to more extreme weather that results in significant power outages. Further, lower income and racial-ethnic minority households are more likely to experience a higher frequency and duration of power outages compared to less socially vulnerable groups. The literature on the unequal impacts of power outages is a new, growing area of research that has been stymied in part due to the difficulty acquiring high spatial resolution, historical power outage data from utilities. In this Perspectives article, we review the availability of power outage data, and what can be learned from …

Prescribed Fire Leads A Pine Flatwoods Specialist Tree Frog To Seek Local Refugia, Ian Biazzo, Pedro F. Quintana-Ascencio

Faculty Publications

Pine savannas of the southeastern United States evolved with frequent low-intensity wildfires. Today, land managers use prescribed fires to restore this ecological process while also controlling vegetative fuel accumulation. Given the ubiquitous application of this management tool, studies should consider impacts on target and nontarget taxa in these systems. During fires, animal populations persist in the landscape when individuals emigrate to unburned areas or seek refugia within the burn zone; otherwise, they experience local extirpation. We examined the effect of prescribed fires on a pine flatwoods specialist frog, the pinewoods treefrog Dryophytes femoralis, in a frequently burned pine landscape. …

Iberian Origins Of New Mexico's Community Acequias, Jose A. Rivera Ph.D., Thomas F. Glick Ph.D.

Faculty Publications

When Spanish officials first entered the northern region of New Spain in the late sixteenth century, they realized that irrigation would be a necessary development in the establishment of permanent communities. To sustain the early settlements, they built irrigation systems following the Iberian model, itself an extension of Arabo-Berber traditions from north Africa and the Middle East.

Six Paths Of Global China: A Genealogy Of A Contested Geographical Imaginary, Jessica Dicarlo, Meredith J. Deboom

Faculty Publications

‘Global China’ has emerged as a shorthand for China's relationship to the global, but its axiomatic uses disguise considerable complexity. This article troubles self-evident uses and tidy categorizations of Global China by approaching it as an emergent, pluralistic geographical imaginary warranting critical analysis. Employing a genealogical approach that privileges indeterminacy and inconsistency over linearity and singularity, we draw on wide-ranging sources to reveal the contested, contextual, and contradictory uses of Global China in the contemporary moment. Our analysis identifies six ‘paths’ of Global China: Other, Integration, Bridge, Status, Threat, and Alternative. Each path facilitates distinct yet interlinked claims about …

Snow, Ice And Permafrost Landscapes As ‘Frozen Commons’: Examples From Northern Mongolia, Mariia Kuklina, Vera Kuklina, Nikolay Shiklomanov, Alexander Shiklomanov, Kelsey Nyland, Khadbaatar Sandag, Enkh Amgalan Sandag, Natalia Krasnoshtanova, Dmitrii Kobylkin, Alexander Kholodov, Andrey Petrov

Faculty Publications

Cryosphere has a global role as a biogeophysical phenomenon. It affects the livelihoods of people inhabiting permafrost areas and is affected by human activity within and outside of the cryosphere’s geographical span. ‘Frozen commons’ (FCs) are cryosphere resources and landscapes, defined by snow, ice, and permafrost, that are experienced, used, protected and managed by groups of people together. This paper highlights collaboration between herders and scientists aimed at improving the understanding of FCs in northern Mongolia, a region of rapid cryosphere transformation. The impact of climate change on Indigenous and pastoralist communities in Mongolia is profound, leading to the damage …

The Influence Of Geographic Ranges, Climatic Niches And Temperature Fluctuations On Population Variability, Cleber Ten Canten, Lauren Holian, Tad Dallas

Faculty Publications

The existence of patterns in population dynamics across species geographic ranges and climatic niches is a pervasive idea in ecology. Population variability (i.e. temporal variability in population density) should hypothetically increase near range edges or niche limits because of less suitable environments in these areas, but the occurrence of such patterns remains largely unexplored. Further, fluctuations in temperature could pose demographic constraints on populations and also influence their variability. We used Breeding Bird Survey data to show that the population variability of 97 resident North American birds consistently increases towards their niche limits and in areas with more variable temperatures, …

The Next Four Years: Geographical Reflections On The Second Trump Administration, Caroline R. Nagel, Peter Hopkins

Faculty Publications

In this introductory essay, we reflect on the significance of the re-election of Donald Trump to the presidency in the United States, and we provide some context for interpreting Trump's second term. Two of Trump's early policy moves—the release of billions of gallons of water from reservoirs in California and the granting of refugee status to Afrikaners—portend four years of politics based on alternative facts, conspiracy theories, and racial grievances. Trump's political agenda has received a significant boost from Silicon Valley billionaires, who are keen to eliminate regulatory bureaucracy. Paradoxically, while allied with high-tech futurists, Trump's policies hearken to an …

Stomatal Distribution And Post-Fire Recovery: Intra-And Interspecific Variation In Plants Of The Pyrogenic Florida Scrub, Genevieve Triplett, Aaron S. David

Faculty Publications

Premise

Amphistomy, the presence of stomata on both leaf surfaces, can increase photosynthesis yet is uncommon across vascular plants. The relative infrequency of amphistomy is often attributed to high costs, such as transpirational water loss. The Florida scrub—a hot, dry, shrub-dominated habitat—historically has experienced frequent fire, yet decades of anthropogenic suppression coupled with the reintroduction of prescribed burns has led to varied fire regimes. In this study, we investigated the links between amphistomy and fire with regard to the presence of the trait across species in this pyrogenic habitat and within-species variation before and after experimental fire and across a …

Generative Ai For Thematic Analysis In A Maternal Health Study: Coding Semistructured Interviews Using Large Language Models, Shan Qiao, Xingyu Fang, Junbo Wang, Ran Zhang, Xiaoming Li, Yuhao Kang

Faculty Publications

Study Objectives: The coding of semistructured interview transcripts is a critical step for thematic analysis of qualitative data. However, the coding process is often labor-intensive and time-consuming. The emergence of generative artificial intelligence (GenAI) presents new opportunities to enhance the efficiency of qualitative coding. This study proposed a computational pipeline using GenAI to automatically extract themes from interview transcripts. Methods: Using transcripts from interviews conducted with maternity care providers in South Carolina, we leveraged ChatGPT for inductive coding to generate codes from interview transcripts without a predetermined coding scheme. Structured prompts were designed to instruct ChatGPT to generate and summarize …

Linking Geographic Distribution And Niche Through Estimation Of Niche Density, Tad Dallas, Cleber Ten Caten

Faculty Publications

1. The availability of suitable niche space constrains where species can occur geographically. This tie between niche space and geographic space is crucial when estimating species geographic distributions in a changing climate. However, specific combinations of climatic conditions may be overrepresented in geographic space, highlighting the potential disconnect between climatic niche area and geographic range size.
2. We develop a niche density estimator that accounts for the geographic availability of climatic niche space, relate this to traditional estimates of niche area and explore how these niche estimates are related to species geographic range size.
3. To do this, we use data on over …

How Extreme Rainfall And Failing Dams Unleashed The Derna Flood Disaster, Ayman Mokhtar Nemnem, Ahad Hasan Tanim, Audrika Nahian, Sadik Khan, Erfan Goharian, Jasim Imran

Faculty Publications

On September 11, 2023, Storm Daniel unleashed unprecedented rainfall over the Wadi Derna watershed, triggering one of the most devastating floods in modern history, striking Derna, a coastal city in Libya. This study reconstructs the disaster using an integrated modeling approach that combines satellite imagery, hydrologic, hydraulic, and geotechnical simulations, machine learning, eyewitness accounts, and digital elevation data to assess the impact of cascading dam failures. Our findings reveal that the region’s dams, even if structurally sound, would have provided minimal protection against the extreme runoff. However, their failure unleashed a destructive surge wave, amplifying the disaster’s magnitude and devastation. …

How Extreme Rainfall And Failing Dams Unleashed The Derna Flood Disaster, Ayman Mokhtar Nemnem, Ahad Hasan Tanim, Audrika Nahian, Sadik Khan, Erfan Goharian, Jasim Imran

Faculty Publications

On September 11, 2023, Storm Daniel unleashed unprecedented rainfall over the Wadi Derna watershed, triggering one of the most devastating floods in modern history, striking Derna, a coastal city in Libya. This study reconstructs the disaster using an integrated modeling approach that combines satellite imagery, hydrologic, hydraulic, and geotechnical simulations, machine learning, eyewitness accounts, and digital elevation data to assess the impact of cascading dam failures. Our findings reveal that the region’s dams, even if structurally sound, would have provided minimal protection against the extreme runoff. However, their failure unleashed a destructive surge wave, amplifying the disaster’s magnitude and devastation. …

Nonnative Species Richness And Dominance Reveal Differing Support For Invasion Theory At A Continental Extent, Lily M. Thompson, William K. Annis, Stephen R. Midway, Julian D. Olden, Brandon K. Peoples

Faculty Publications

Aim: Empirical tests of conceptual hypotheses describing species invasions often differ depending on the spatial scale (spatial resolution and extent of study area) at which they were conducted. Some of this disparity may arise from tradeoffs in data quality necessitating the use of different indices of community invadedness among scales. Local-scale studies typically use fine-resolution, descriptive measures of community invadedness (‘dominance’, the proportion nonnative individuals) at limited spatial extents, while macroscale studies often aggregate datasets to cover large spatial extents but use coarser spatial resolution and less descriptive indices (nonnative species richness). We investigated the consequences of using different indices …

Immigration Policy In The Second Trump Administration: Restriction, Removal, And The Limits Of Maga Nativism, Caroline R. Nagel

Faculty Publications

Donald Trump's three presidential campaigns have centred on promises to stop unauthorised immigration, whether by ‘building the wall’ or by enacting the largest mass deportation in American history. To deliver on these promises, Trump has appointed Stephen Miller—an anti-immigration hardliner who was responsible for the first Trump administration's draconian border policies – to a key White House position. Trump is often described as breaking from liberal-democratic norms; but when it comes to immigration policy, he is following a well-worn path by hiring Miller. This brief commentary places the Trump/Miller brand of anti-immigration politics in historical context, showing how anxieties over …

Immigration Policy In The Second Trump Administration: Restriction, Removal, And The Limits Of Maga Nativism, Caroline R. Nagel

Faculty Publications

Donald Trump's three presidential campaigns have centred on promises to stop unauthorised immigration, whether by ‘building the wall’ or by enacting the largest mass deportation in American history. To deliver on these promises, Trump has appointed Stephen Miller—an anti-immigration hardliner who was responsible for the first Trump administration's draconian border policies – to a key White House position. Trump is often described as breaking from liberal-democratic norms; but when it comes to immigration policy, he is following a well-worn path by hiring Miller. This brief commentary places the Trump/Miller brand of anti-immigration politics in historical context, showing how anxieties over …

New Hands In China: Frederick And Elizabeth Crook In Asia, Karen Glenn, John Murphy, Hallie Davidson

Faculty Publications

Drawing from the Frederick W. Crook and Elizabeth F. Crook papers in the L. Tom Perry Special Collections, this exhibit features photographs, writings, and artifacts that document rural life, agricultural development, and cross-cultural exchange in China from the 1980s through the 2010s. It also highlights the humanitarian and religious contributions of Frederick W. Crook and his wife, Elizabeth Fletcher Crook, including their work with LDS Charities and their service as mission presidents in Taiwan from 1979 to 1980.

Frederick W. Crook was an agricultural economist who worked for the United States Department of Agriculture for over 30 years, specializing in …

‘I Feel Like The Most Important Thing Is To Ensure That Women Feel Included…’: Immigrant Women’S Experiences Of Integration And Gender Equality In Iceland During Times Of Crisis, Marya Rozanova-Smith, Embla Eir Oddsdóttir, Andrey N. Petrov

Faculty Publications

Enabling gender equality by empowering women to fully engage in modern society is fundamental for building resilient and sustainable communities. While Iceland is recognized as a global leader in gender equality, the experiences of various immigrant groups can differ considerably, especially during crises such as the COVID-19 pandemic and recovery. Given the rapid increase in the immigrant population in Iceland, it is crucial to gain a deeper understanding of the processes surrounding immigrant women’s integration strategies, with an emphasis on gender equality through the lens of intersectionality. The main objective of this qualitative study is to explore the gendered impacts …

Trump And The Us Energy Transition, Conor M. Harrison

Faculty Publications

The US electricity grid has seen a rapid increase in the amount of renewable energy over the last decade, with many renewable advocates viewing the Inflation Reduction Act of 2022 as the catalyst to move the grid towards 100% clean energy. The 2024 elections, however, have significantly muddied the path. In this commentary, I posit what the Trump administration—and related Republican control of both houses of the US Congress—means for the US electricity system. I begin by briefly outlining the contours of federal and state electricity governance, the design of Inflation Reduction Act, the existing drivers of renewable energy growth …

Deportations And Latino Segregation: The Residential Impacts Of Interior Immigration Enforcement, Matthew Hall, Jacob S. Rugh, Hao Liang

Faculty Publications

The shift of immigration enforcement to local jurisdictions has intensified localized patterns of anti-immigrant sentiment, enabling the system of mass deportation to expand at an unprecedented scale. This study examines the effects of 287 (g) agreements, which empower local law enforcement to enforce immigration laws, on Latino residential segregation. Using a quasi-experimental design that compares counties implementing 287 (g) with those that applied but did not implement, we find that these policies significantly slowed declines in Hispanic-white segregation, particularly in early-adopting Southern counties where enforcement was most aggressive. We find no evidence that the program altered patterns of segregation for …

“I Think Even In Challenging Times We Can Still Be Uplifting”: Indigenous Women’S Experiences Of Resilience To The Covid-19 Pandemic In Alaska, Marya Rozanova-Smith, Charlene Apok, Andrey N. Petrov

Faculty Publications

During the COVID-19 pandemic, Alaska communities faced an extremely challenging situation given their socioeconomic, cultural, and demographic characteristics, as well as issues related to remoteness and colonial legacy. This paper seeks to advance the understanding of the gendered impacts and implications of crises like the COVID-19 pandemic on Indigenous women in Alaskan urban and rural communities through a resilience lens. The paper addresses two primary research questions: (1) What are the impacts of the COVID-19 pandemic on Indigenous women in urban and rural Alaska, and specifically what are the gendered implications in the personal, sociocultural, and economic domains? (2) What …

Urban Heat Mapping Strategies For Predicting Near-Surface Air Temperature In Unsampled Cities In Iowa, Mark D. Ecker, John P. Degroote, Clemir A. Coproski, Bingqing Liang, John Darko, James T. Dietrich

Faculty Publications

Elevated urban temperatures are a significant concern across the globe due to their negative health effects and increased energy use. Understanding the spatial variation in urban air temperatures can lead to informed mitigation and planning efforts. Air temperatures for multiple urban areas in the state of Iowa, USA, at three times of the day, were collected using customized sensors mounted on vehicles driven through a variety of landscapes in each urban area. Geographic information systems technology was used to process high-resolution landscape datasets and derive variables that summarize the urban landscape surrounding each temperature measurement point. Five different statistical models: …

Displaced Decarbonization: Climate Necropolitics And The Contested Spatialities Of Green Hydrogen In Namibia, Meredith J. Deboom

Faculty Publications

Green hydrogen is often presented as a transformative solution to the dual challenges of decarbonization and economic development. This article applies the framework of climate necropolitics to interrogate the contested spatialities underlying such “win-win” narratives. It does so through an extended case study of Hyphen Hydrogen Energy, a $10 billion green hydrogen project planned for Lüderitz, Namibia. A remote town of 20,000 in a country with a $12 billion annual GDP, Lüderitz initially appears to be an unlikely host site for the “industrial fuel of the future.” To explain this outcome, I first illustrate how discordant socio-spatial projects—including European energy …

Explaining Youth Driver Licensing Determinants Using Xgboost And Shap, Kailai Wang, Jonas De Vos, Michael Smart, Sicheng Wang

Faculty Publications

This study explores the factors influencing driver's license acquisition among young individuals and examines its broader implications for mobility, safety, and sustainability. Leveraging nationally representative survey data on Millennials and Generation Z, we apply eXtreme Gradient Boosting (XGBoost) and SHapley Additive Explanations (SHAP) to identify key socioeconomic determinants of teenage driver's license attainment. Our findings reveal consistent predictors across both generations, including the percentage of licensed family members, household income per capita, educational attainment, and public transit ridership. We identify meaningful dose-response relationships, such as the increasing influence of licensed household members beyond a 0.75 threshold and the …

Two-Layer Formulation For Long-Runout Turbidity Currents: Theory And Bypass Flow Case, Hongbo Ma, Gary Parker, Matthieu Cartigny, Enrica Viparelli, S. Balachandar, Xudong Fu, Rossella Luchi

Faculty Publications

Turbidity currents, which are stratified, sediment-laden bottom flows in the ocean or lakes, can run out for hundreds or thousands of kilometres in submarine channels without losing their stratified structure. Here, we derive a layer-averaged, two-layer model for turbidity currents, specifically designed to capture long-runout. A number of previous models have captured runout of only tens of kilometres, beyond which thickening of the flows becomes excessive, and the models without a lateral overspill mechanism fail. In our framework, a lower layer containing nearly all the sediment is a faster, gravity-driven flow that propels an upper layer, where sediment concentration is …

A Survey Of Sampling Methods For Hyperspectral Remote Sensing: Addressing Bias Induced By Random Sampling, Kevin T. Decker, Brett J. Borghetti

Faculty Publications

Identified as early as 2000, the challenges involved in developing and assessing remote sensing models with small datasets remain, with one key issue persisting: the misuse of random sampling to generate training and testing data. This practice often introduces a high degree of correlation between the sets, leading to an overestimation of model generalizability. Despite the early recognition of this problem, few researchers have investigated its nuances or developed effective sampling techniques to address it. Our survey highlights that mitigation strategies to reduce this bias remain underutilized in practice, distorting the interpretation and comparison of results across the field. In …

Hedging Energy Transition: Green Hydrogen, Oil, And Low-Carbon Resilience As State Strategy In Namibia, Meredith J. Deboom

Faculty Publications

Policy frameworks increasingly portray energy transition as a mechanism for achieving a range of resilience- related goals, including socio-economic development and energy security. Energy transition is often character ized as a particularly important resilience strategy for lower-income states in the Global South, which face the simultaneous challenges of decarbonization and development. Yet these states, many of which have fossil fuel resources, face distinct constraints and risks in navigating energy transition, including the possibility that promised funding for low-carbon energy projects will never come to fruition or that global decarbonization will be deferred or abandoned completely. This article uses the case …

Introduction: The Future Of Global Journalism—Relationships, Tools, And Power, Ruth Moon, Lea Hellmueller, Herman Wasserman

Faculty Publications

No abstract provided.

The Two Men Named Perez Andrews Of Oxford County, Maine, Kathrine C. Aydelott

Faculty Publications

This article resolves a long-standing genealogical confusion between two men named Perez (or Peres) Andrews, whose overlapping names, lifespans, and locations in 19th-century Maine have led to persistent misidentification in published genealogies and family trees. Drawing on extensive primary source research—including land records, censuses, court cases, and vital records—this study reconstructs the distinct lives of Perez Andrews (b. ca. 1767) of Bakerstown, Minot, Buckfield, and Bradford, Maine; and Peres Andrews (b. 1797) of No. 2 Plantation and Sumner. The paper not only separates their identities and lineages but also probes possible familial connections among the Andrews families of western Maine. …