Geography Commons^™

Adaptation Planning To Mitigate Flood Risk: Bellevue, Nebraska As A Case Study, Michael Nti Ababio

Community and Regional Planning Program: Theses

Flooding remains one of the most pressing natural hazards in the United States, with increasing frequency and intensity driven by climate change. This thesis explores the adaptation planning strategies employed to mitigate flood risks in Bellevue, Nebraska, a city significantly impacted by the 2019 floods in eastern Nebraska. Using a mixed-methods approach, the study combines quantitative analysis of flood vulnerability with a critical review of local planning policies using documents, zoning ordinances and institutional frameworks. Spatial analytical tools such as Global Moran’s I and Hot Spot Analysis (Getis-Ord Gi*) were used to detect clustering of inundated buildings during the 2019 …

Assessment Of Spatial Autocorrelation And Scalability In Fine-Scale Wildfire Random Forest Prediction Models, Madeleine Pascolini-Campbell, Joshua B. Fisher, Kerry Cawse-Nicholson, Christine M. Lee, Natasha Stavros

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Wildfire prediction models that can be applied across diverse regions at fine scales (<  100 m) are critical for wildfire management. Remote sensing offers a path forward by providing heterogeneous and dynamic measurements of fuel load, type, and flammability. Machine learning methods such as random forests provide an empirical framework that are high-accuracy, computationally efficient, interpretable and able to model complex ecological relationships. Here we use high resolution (70 m, every 3–5 days) remote sensing observations of evapotranspiration and evaporative stress index, which represent plant water stress, from Ecosystem Spaceborne Thermal Radiometer on Space Station (ECOSTRESS), as well as topography and weather data, to predict burn severity and occurrence for 8 large wildfires that burned 3715 km² from 2021 and 2022 in New Mexico, USA. These fires ranged from low to high burn intensity, and covered a diverse range of ecoregions (deserts, grasslands, forests), plant species, and topographies. We used a single model to predict the burn severity of all wildfires one week before occurrence. The prediction accuracy was greatest when using all predictors (ECOSTRESS, weather, topography) (R² = 0.77). We assessed the role of spatial autocorrelation in driving model performance by: (1) increasing the sample spacing of our dataset, (2) …

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 …

Clusters In The Storm: Regional Economic Specialization Before And After Hurricane Harvey, Gwyneth King Waddington

Theses and Dissertations

In recent years, large-scale disaster events have dominated headlines. As the world faces an increasing number of such disasters, it is crucial to understand their impacts beyond immediate monetary losses. Disasters not only directly impact individuals and businesses but may also reshape the spatial patterns of the regional economy. Through a case study of Hurricane Harvey in Texas and Louisiana, this study examines how disaster events influence regional economic specialization patterns and contribute to uneven impacts across economic supersectors and geographies. Expanding on previous methodologies, this study incorporates temporal analysis tools to identify and investigate case studies of economic change. …

Use Of High-Throughput Phenomics With And Without Fungicide As A Wheat Breeding Tool, Gerardo Ivan Rivera Collazo

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Wheat (Triticum aestivum) is an important food staple for many countries around the world and current consumption and production data demonstrate a production deficit. Breeders are challenged to help close this gap in production by selecting better cultivars with improved yields. Several methods aim to accelerate the breeding process to reduce the time required for releasing an elite variety. One of the main breeding bottlenecks is the lack of fast and reliable phenotypic data acquisition that could dissect physiological and morphological plant data. High-throughput remote sensing could have the potential to reduce this bottleneck by streamlining data acquisition, …

The Surface Water And Ocean Topography (Swot) Mission For River And Lake Ice Application, Sunwoo Yoon

Earth Sciences Theses and Dissertations

The Surface Water and Ocean Topography (SWOT) mission, launched in December 2022, is designed for global survey of Earth’s surface water. However, the seasonal freezing of lakes and rivers combined with SWOT’s unique interferometric radar characteristics presents a valuable opportunity to assess its potential for river and lake ice applications. In this dissertation, I first compare backscatter characteristics over open water and frozen lakes and rivers. I demonstrate strong contrast in backscatter between water and ice while accounting for incidence angle, highlighting SWOT’s capability to discriminate between surface cover types. However, overlapping backscatter signatures suggest further investigation of drivers of …

Dynamicpatch: Method And Software For Spatially Explicit Dynamic Patch Transition Characterization, Aiyin Zhang, Robert Gilmore Pontius, Thomas Mumuni Bilintoh, Florencia Sangermano, John Rogan

Geography

Context: Decades of research have used spatial pattern metrics at time points, such as those in FRAGSTATS, to measure the net change of landscape configuration and composition during time intervals. However, metrics at time points fail to quantify a time interval’s gross change, which can be substantially larger than net change between two time points. The field of landscape ecology has lacked a conceptual framework and accompanying software to characterize patterns of gross change during time intervals in terms of patches that are spatially explicit with a typology that is mutually exclusive and collectively exhaustive.

Objectives: We present a new …

Relative Hazard Losses Along The Atlantic And Gulf Coasts, Erin Kemp

Theses and Dissertations

Coastal areas face a variety of natural hazards, many of which are increasing in frequency or severity due to climate change. Continued coastal development emphasizes the need for a better understanding of the impact of these hazards on coastal communities. This study aims to improve this understanding by investigating temporal, spatial, and causal patterns in county-level relative losses (RL) from hazards along the Atlantic and Gulf Coasts from 2001 to 2021. Three research questions are addressed: 1) Are relative losses increasing over time in coastal counties? 2) Where are the highest relative losses among coastal counties? and 3) Which hazards …

Reluctant Transitions: Place And Post-Extraction Politics In Southeastern Ohio, Jenna Lynn Haver

Theses and Dissertations

Based on a summer of ethnographic research in a subsection of Appalachian Ohio colloquially referred to as “The Valley,” this research challenges three narratives of this place that formulate a harmful Appalachian imaginary. The first narrative of industrycontrolled coal heritage is complicated by the way local people negotiate control over their own stories of coal and its existence outside of industry domain. The second narrative characterizes this as a space of extraction which is in tension with different social relations to varying types of energy – especially the discontinuity of the coal to fracking shift. The third narrative centers of …

Combining Remote Sensing And Field Sampling To Assess Microphytobenthos Distribution In The North Inlet Estuary, South Carolina, Joseph Carmine Mcguinn

Theses and Dissertations

The study of microphytobenthos (MPB) distributions in mudflat ecosystems is critical for understanding coastal ecosystem health and resilience. This research integrates high-resolution multispectral imagery and elevation data to predict chlorophyll-a concentrations in mudflats within the North Inlet estuary, South Carolina. Using statistical analyses, MSAVI was identified as the most effective spectral index for chlorophyll-a prediction, and a regression model was generated for this index, finding significant correlation with elevation. Temporal and spatial patterns of chlorophyll-a distributions were explored through predictive rasters, revealing significant relationships between MPB abundance and microtopography. These findings demonstrate the value of remote sensing for …

Crazy Mountain Fiber Fest 2025, Sweet Grass County, Montana, Ava Worbets, Kika Bradford, Megan Schultz

Institute for Tourism and Recreation Research Publications

This study was conducted for the Sweet Grass County Chamber of Commerce to provide insight into the characteristics of attendees of the 2025 Crazy Mountain Fiber Fest. Fifty-two attendees of the event completed the survey. Results show that 92% of respondents were residents of Montana, of which 33% were from Sweet Grass County. Out-of-county respondents spent an average of 3.9 nights in Montana, reporting a total spending of $8,770.00, mostly in hotel/motel/bed and breakfasts. Results provide event organizers with useful data for future event planning, making improvements to the event, event marketing/promotion, and understanding the visitor spending associated with the …

Between Florida And The World: Young People And The Politics Of Citizenship, Jessica Flach

Theses and Dissertations

This thesis critically examines how American high school students experience and make sense of global citizenship within the context of a commercial educational tour. Drawing on a case study of students from a Title I public high school in Florida, the research interrogates the narratives of civic transformation promoted by educational travel companies and explores how these narratives intersect with students’ lived realities. Combining ethnographic methods, interviews, and critical discourse analysis, the study reveals that global citizenship is not meaningfully realized through such travel experiences; rather, it is fragmented, depoliticized, and often disconnected from the civic education students receive in …

Political Ecologies Of Storage For The 21st Century, Sayd Randle, Matthew Archer

Research Collection College of Integrative Studies

New resource storage arrangements are proliferating rapidly both in terms of physical infrastructures-for the storage of things like "clean" energy, nuclear waste, carbon dioxide, fresh water, and data-and as part of a set of discursive moves that reinforce a vision of a near future world in which problems of climate change mitigation and adaptation in particular (but also issues like energy security, water security, industry growth, etc.) are solved through eco-modernist techno-fixes. This Symposium sketches the contours of a framework we term political ecologies of storage. In doing so, we treat storage as both a potent imaginary and a concrete …

A New City For A New Era: Xiong'an As Showcase Of China's Evolving Urban Ideology, Andrew Stokols

Research Collection College of Integrative Studies

Cities have long been expressions of political ideology in China and elsewhere. During China’s rapid urbanization over the past few decades, “new areas” became popular strategies to promote urban growth, following the success of Shenzhen, widely regarded as China’s first special economic zone. Today under Xi, Xiong’an New Area has become the latest “new area of national significance.” But unlike previous new areas in China, Xiong’an has become wedded to a distinct vision of the urban in Xi Jinping’s China, one in which the excesses of reform-era urbanization are controlled through new forms of affordable housing and finance, new ecological …

Singapore At 60: Home Truly Is An Idea That Never Stands Still, Lily Kong

Research Collection School of Social Sciences

There are many new stories to embrace but also quiet distances between us that we must bridge.

In a National Day op-ed published in The Straits Times, SMU President Professor Lily Kong reflects on what ‘home’ means as Singapore marks its 60th year of independence — and how that meaning continues to evolve across generations. Prompted by a walk through a familiar playground now transformed, Prof Kong considers how Singapore’s changing physical and social landscape mirrors shifts in national identity. While progress and policy evolution signal a society in transition, she also notes the emergence of quieter divides – between …

No. 43: Migration, Food Insecurity And Angolan Migrants In Namibia, Lawrence N. Kazembe, Ndeyapo Nickanor, Godfrey Tawodzera

Migration and Food Security (MiFOOD) Network

This study examines the food security challenges faced by Angolan migrants in Namibia, focusing on the interplay between migration, livelihoods, and food insecurity. Drawing on survey data from households in Northern towns and the capital city of Namibia, the research reveals high levels of food insecurity among Angolan migrants, characterized by limited dietary diversity and a reliance on coping strategies such as consuming less preferred foods and reducing meal portions. The findings highlight the marginalization of migrants, who primarily work in the informal sector with low incomes, exacerbating their vulnerability. The COVID-19 pandemic further worsened food insecurity by disrupting livelihoods …

Who Bears The Burden? An Assessment Of Vulnerability And Resilience To Consecutive Disasters In The Portland Metro Region, Idowu Ajibade, Jason Sauer, Matthew Walter, James M. Done, Ming Ge, Elliot Gall, Aswatha Raghunathasami, Paul C. Loikith, Chris Lower, Heejun Chang, Arun Pallathadka, E Mae Sowards

Geography Faculty Publications and Presentations

Climate-related disasters threaten urban areas worldwide, yet gaps remain in understanding how multiple stressors interact to shape resilience. This study examines exposure, vulnerability, and resilience across three consecutive extreme events in the Portland metro area: the September 2020 wildfire-related air pollution, the February 2021 snowstorm, and the June 2021 heatwave. We used geographically weighted regression and Spearman rank correlation analysis to investigate relationships between hazard impacts, the social vulnerability index (SoVI), Baseline Resilience Indicators for Communities (BRIC), and proximity to community-based organizations (CBOs) in 416 census tracts. Our analysis reveals strong spatial correlations between wildfire-related air pollution, winter storm impacts, …

Balat, Maskara, At Wika: Karanasan Ng Isang Dayuhan Sa Pilipinas, Jc Gaillard

Dalumat: Multikultural at Multidisiplinaryong E-Journal sa Araling Filipino

Ang punang ito ay tungkol sa karanasan ng may-akda na dayuhan at kung bakit naging abnormal siya dahil marunong siyang mag-Filipino at Kapampangan sa bansang Pilipinas. Samakatwid, ang pinakatanong ng artikulong ito ay ano ba talaga ang pamantayan at normal sa relasyon ng Pilipinx at dayuhang puti pag dating sa wika? Sa karanasan ng may-akda, naging sentido kumon na normal ang mag-Ingles at abnormal ang mag-Filipino at mag-iba pang katutubong wika. Ganito kalalim ang internalisasyon at normalisasyon ng Ingles bilang wika ng Pilipinx sa harapan ng dayuhang puti sa Pilipinas. Kaya pag dating sa wika, kayumanggi ang balat pero puti …

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

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 …