The graduate and undergraduate research collections share, archive and preserve research from University of Arizona students. Collections include honors theses, master's theses, and dissertations, in addition to capstone and other specialized research and presentation topics.


If you have questions about items in these collections, or are a faculty member who would like to provide students in your program an opportunity to showcase their research, please contact the Campus Repository team at repository@u.library.arizona.edu with your request. We look forward to working with you.

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Recent Submissions

  • Landscape Disconnect: A Study of the City of Tucson's Landscapes in the 20th Century

    Apanovich, Nataliya; Martin, Ashley; College of Architecture, Planning and Landscape Architecture; Apanovich, Nataliya; Apanovich, Nataliya (The University of Arizona., 2024-05)
    The City of Tucson, Arizona, lies within the Sonoran Desert, yet a large portion of landscapes don’t reflect this ecosystem. The 20th Century brought about this disconnect, which is reflected in how we develop our urban greens spaces. Through the investigation of Tucson’s history with urban green spaces, we find that modern technology mixed with unrealistic ideals fueled an increase in exotic plant species use in commercial and residential landscaping. Through city-wide education programs, increased water use rates, and the implementation of native plant focused ordinances, the city was able mend some past mistakes in developing. Today, there is work we can be doing to improve our efforts, with 83% of residents from a local survey requesting more information on the benefits of Arizona native plants.
  • Improving Recycling at the University of Arizona: student behavior and attitudes

    Apanovich, Nataliya; Gammariello, Bethany; College of Architecture, Planning and Landscape Architecture; Apanovich, Nataliya (The University of Arizona., 2024-05)
    Waste diversion at higher education institutions in the U.S. remains a growing issue. Recyclable materials that enter landfills have negative environmental impacts as well as expensive landfill service costs for universities. The University of Arizona partnered with a zero waste consulting firm to identify gaps in the current waste management operations by engaging with department head stakeholders, but did not include any form of student engagement. This research targeted the student body to identify ways to improve recycling and zero waste efforts on and around the University of Arizona campus. The research included surveying students about recycling and observations of recycling sites selected by the students. Recommendations were made following the observations and included increasing the amount of recycling bins, ensuring that recycling bins are adjacent to trash cans, standardizing the appearance of recycling bins with the help of labeling, color, and informative graphics, and finally increasing educational opportunities about recycling and zero waste efforts for students at the University of Arizona. Further research should include conducting more student surveys and engaging with the University of Arizona’s Office of Sustainability coordinators in charge of the zero waste campus program in order to identify further gaps and improvements in waste management operations.
  • Why the Sidewalk Ends: Analysis of Sidewalk Infrastructure in Tucson, Arizona

    Schrauth, Anna; College of Architecture, Planning and Landscape Architecture; Apanovich, Nataliya (The University of Arizona., 2024-05)
    Inequitable sidewalk infrastructure perpetuates social inequalities. Furthermore, good sidewalk infrastructure has many health, social, and environmental benefits. To study the inequitable sidewalk infrastructure in Tucson, I did a case study analysis of two neighborhoods of different socio-economic status. The neighborhood with higher income levels had more and better sidewalks. I conducted interviews with neighborhood representatives and the city of Tucson professionals to understand why this was. I found that the main issues with current sidewalk development were that the funding sources are problematic and the responsibility for sidewalk development often ended up on the property owners or developers. To remedy these issues, I propose a new funding source, a development tax, and a city-run program to target areas in the greatest need of sidewalk infrastructure.
  • Pima County Wildfire Risk & the Dangers on Transmission Infrastructure

    Fink, Maxim; College of Architecture, Planning and Landscape Architecture; Smith, Garrett; Apanovich, Nataliya (The University of Arizona., 2024-05)
    This research paper investigates the impact of wildfires on transmission infrastructure and proposes sustainable mitigation strategies to enhance the resilience of the electric grid in Pima County, Arizona. The study addresses the increasing vulnerability of transmission systems to wildfire risk and aims to identify specific areas at high risk within Pima County. Through geospatial mapping and risk assessment techniques, the study analyzes key variables including slope, elevation, aspect, and land use to understand their influence on wildfire behavior and transmission infrastructure susceptibility. Furthermore, the research explores sustainable alternatives to reduce reliance on the grid and increase resilience, including the adoption of distributed energy resources and demand-side management techniques. The study aims to provide valuable insights into mitigating wildfire-induced power outages and enhancing sustainability of energy systems in wildfire-prone regions.
  • Urban Heat and Their Toll

    Apanovich, Nataliya; Newberg, William; College of Architecture, Planning and Landscape Architecture; Nataliya, Apanovich; Apanovich, Nataliya (The University of Arizona., 2024)
    As more people move to cities and cities grow, this study explores the correlation between Urban Heat and Heat mortality. From 2011-2021 in Phoenix, AZ, heat caused mortality increases 3.6 people per 100,000 for each degree celsius caused by UH and heat related mortality increases 6.5 per 100,000 people. Data was collected from the MODIS NASA satellite and AZ Department of Health.
  • Navigating Green Building Certification, Sustainability, and Public Perception: Identifying and Understanding Barriers to Widespread Adoption of Green Building Practices in Smaller Municipalities

    Thomas, Deirdre; College of Architecture, Planning and Landscape Architecture; Bernal, Sandra; Apanovich, Nataliya; Bernal, Sandra; Wong, Kenny (The University of Arizona., 2024-05)
    Despite the growing prevalence of green building (GB) practices in larger urban centers, as highlighted by existing research, smaller municipalities face significant challenges in adopting these practices due to economic, social, and regulatory barriers. Using a mixed-methods approach, this study integrates a systematic literature review (SLR) with a 33-participant survey and nine follow-up interviews to gather qualitative and quantitative insights into the barriers and motivators affecting GB adoption in smaller municipalities. The findings identify that the main barriers are actual and perceived high costs, limited public awareness of certification programs, and inadequate municipal support. Key motivators for adopting GB practices were financial incentives and targeted public education to promote increased GB adoption. This study highlights the importance of adapting policy and community engagement approaches to bridge the knowledge gap, align stakeholder interests with sustainable objectives, and foster enhanced community sustainability, seeking to motivate a more widespread integration and acceptance of green building practices at the municipal level.
  • Determining Insulation Materials for Low-Income People in Rural Areas with an Innovative Technology

    Shorty, Damon; College of Architecture, Planning and Landscape Architecture; Bernal, Sandra; Apanovich, Nataliya; Bernal, Sandra; Wong, Kenny (The University of Arizona., 2024-05)
    Many rural low-income communities throughout the United States have families that are forced to live in houses that are poorly constructed, which can create a variety of health issues, reduce the quality of life, and increase energy burdens. Rural low-income people often have difficulties accessing home energy improvements, expert people, and/or technology. There are many technologies and techniques for testing the performance of insulation materials. This study investigates innovative technology to test the performance of various insulation materials that include fiberglass, mineral wool, expanded polystyrene, cellulose, and four developed composites. Testing was performed for one hour using innovative technology to measure the OSB sheathing/insulation material surface temperatures, chamber air temperatures, and relative humidity every five minutes. The performance data collected were analyzed after all insulation materials were individually tested. The innovative technology could perform consistent tests on insulation materials to show the user materials that could promote a stable interior environment. Insulation materials composed of cellulose outperformed other materials and can promote a circular economy in the targeted communities. Cellulose can resist a high amount of heat transfer, be sourced locally, is organic, and recyclable. Finding solutions to address the high energy usage of buildings from being insufficiently (or non) insulated is going to be a challenge in the years to come as climate change becomes more prevalent.
  • Closing the Loop: Harnessing Renewable Natural Gas from Agricultural Waste for Sustainable Farming and Environment

    Bobst, Johanna (Hanna); College of Architecture, Planning and Landscape Architecture; Bernal, Sandra; Apanovich, Nataliya; Wong, Kenny (The University of Arizona., 2024-05)
    Unlocking the transformative potential of Renewable Natural Gas (RNG) from agricultural waste holds the key to addressing environmental challenges while revolutionizing sustainability in farming. Agriculture plays a pivotal role in global food production but is also a significant contributor to environmental pollution through greenhouse gas emissions and improper waste management. Livestock farming generates substantial amounts of organic waste, including manure, which releases methane—a potent greenhouse gas—into the atmosphere. The overarching efforts of previous research on this issue derive from environmental agencies outside of the agricultural and RNG spaces, which created a binary approach and were thus unable to assess the full scope of the issues and potential solutions available. Renewable Natural Gas (RNG) production from agricultural waste provides a favorable solution to alleviate these environmental challenges by repurposing organic waste into a renewable energy source. There are significant benefits to the use of Renewable Natural Gas (RNG) production sourced from agricultural waste, with a focus on livestock manure, as a solution to environmental challenges in agriculture. This research examines the mitigation of greenhouse gas emissions, the utilization of digestate with a focus on a circular economy, potential risks associated with feedstock supply, and the influence of scalability frameworks on RNG implementation. The findings demonstrate the substantial environmental benefits and highlight areas requiring further research and policy development to overcome the limitations and realize the full potential of RNG in agriculture.
  • Helical Piers. What is needed for the successful introduction of helical piers in Guilford County, NC.

    Bernal, Sandra; Beitz, Paul; College of Architecture, Planning and Landscape Architecture (The University of Arizona., 2024-05)
    In the face of a housing shortage and climate crisis, helical piers, a widespread technology used since the mid-1800’s, is a style of foundation that offers higher efficiency than traditional foundation types. This study focuses on why builders continually use traditional foundation building practices that take longer to install, require more skilled labor, and have larger embodied and operational carbon emissions associated with them, than building with helical piers. Currently the use of helical piers in new construction is non-existent in Guilford County, North Carolina. Interviews, a building performance survey, and observations allowed for the collection of data from homeowners, renters, building professionals, and building inspectors to better understand why this building technique has not been introduced. Outcomes are used to inform on the successful introduction of helical piers in Guilford County. The results revealed that most residents are unfamiliar with helical piers, contractors are nervous to try a new building system, and that Building Inspectors are open to more helical pier installations but see becoming a successful foundation system in Guilford County as a challenge. There are successful helical pier installers 100 miles south of Guilford County however, and the conclusion has recommendations on steps that can be taken to have a successful introduction of helical piers in Guilford County.
  • Efficient Campus, Sustainable Future: A Building Upgrade Study

    Rasburry, Jonathon; College of Architecture, Planning and Landscape Architecture; Bernal, Sandra (The University of Arizona., 2024-05)
    This case study comparative analysis explores the impact of energy efficiency upgrades on three buildings on a college campus in Arkansas. The study focuses on building design, use, and age as factors influencing the effectiveness of the upgrades. The buildings, referred to as Building A, Building B, and Building C due to owner restrictions, underwent efficiency upgrades including lighting and HVAC improvements. Utility bills for chilled water, electricity, steam, and water were collected twelve months before and after the upgrades. The results show a decrease in electricity and chilled water usage in all three buildings, indicating the effectiveness of the upgrades. Building benchmarking using the Arc tool allows engineering students at the college to track utility usage and learn how real-time conditions affect energy consumption. The study highlights the importance of consistent monitoring and analysis to optimize energy efficiency in buildings.
  • Tribal Wisdom and Sustainable Solutions: Addressing the Native American Housing Crisis through a Focus on Tribal Worldview and Sustainability

    Mears, Taylor; Stands Over Bull, Jeremy; College of Architecture, Planning and Landscape Architecture; Bernal, Sandra; Apanovich, Nataliya (The University of Arizona., 2024-05)
    Examining the correlation between housing conditions and social inequalities among Native American communities reveals a striking manifestation of the ongoing crisis. This issue demands an analysis of its underlying reasons, the development of culturally sensitive solutions, and an evaluation of current methods in use. This research aims to seeks to understand the complexities of the Native American Housing Crisis through the analysis of: the historical, systemic, and socioeconomic roots of this crisis; the effectiveness of existing housing programs and policies to meet the self-determined needs of Native American communities within culturally specific frameworks; possible culturally-responsive solutions to empower tribes in developing and implementing a housing solution that is financially sustainable; the mandates, challenges, and opportunities that constitute the Native American Housing Crisis. Using oral communication and an autoethnography approach, this study identifies the longstanding need for sustainable housing, offering pathways for the positive reconstruction of Native American communities.
  • Understanding the Impact of California's Escalating Wildfire Crisis on Residents and the Necessity for Sustainable Adaptation

    Apanovich, Nataliya; Bernal, Sandra; Wong, Kenny; Dengler, Kellen; College of Architecture, Planning and Landscape Architecture; Bernal, Sandra (The University of Arizona., 2024-05)
    California is facing a critical time in its history as the effects of climate change are manifesting themselves by way of yearly record-breaking wildfires all over the state. This crisis is quickly becoming the kind that demands urgent attention. Continuing to employ a plan of action based on the status quo and the historical way of doing things will no longer suffice. Further urban sprawl into now-fire-prone areas aggravates this issue and with residents receiving very little guidance and support from their local governments in this modern fight, it could be a recipe for disaster. The life-threatening implications of this situation are undeniable, making swift action imperative. This study uses a phenomenology-based research approach to examine the lived experiences of residents whose lives have been affected by wildfires with the goal of understanding those affects and uncovering what type of support is most needed. It integrates diverse data collection methods, both internally and externally from the University of Arizona library, a tailored survey, and detailed interviews. Several insights into the rapidly evolving nature of this issue as well as specific needs required by the affected communities were discovered.

    Livingston, Margaret; Yang, Bo; Rodriguez Ponce, Oscar (The University of Arizona., 2023)
    As extreme weather events become increasingly common and concerns for future water availability rise in the Southwestern United States, the need and opportunity for sustainable landscape design in hot arid environments grows stronger. The University of Arizona, which has committed to ambitious sustainability goals, is a prime environment for the adoption of sustainable landscapes that could work as remarkable examples of best practices in the region in terms of landscape performance. Through literature reviews, case reviews, and site assessment, this project proposes a design informed by research for a portion of the University of Arizona Mall. The result is an alternative to the existing, lawndominated landscape in favor of a more sustainable and dynamic site that maintains some of the lawn’s flexibility while incorporating a plethora of new programming and spaces at a lower water cost.

    Korgaonkar, Yoga; Todd, Mary Elizabeth (The University of Arizona., 2024)
    The Oriole Song Series is a collection of traditional Akimel O’Odham songs that describe a journey from the middle Gila River in southern Arizona to the salt flats on the northern coast of the Gulf of California and back. O’Odham men traveled from their traditional homelands to gather salt, and more importantly, complete a sacred pilgrimage. Anthropologist Donald Bahr recorded Vincent Joseph, a Gila River Indian Community member, recite and sing The Oriole Song Series in the early 1980s, which reference physical locations along a metaphorical route intertwined with O’Odham mythologies. Although visible trail segments, trail markers, and linear artifact scatters exist in the archaeological record, the precise path(s) of the physical journey remains unknown. This study explores the potential physical route(s) utilized by Akimel O’Odham and Peeposh peoples and their ancestors as compared to the metaphorical journey described in The Oriole Song Series. A least cost path was calculated for the entire metaphorical route and the results were compared to trails and trail-related features documented in the archaeological and ethnographic records, historic maps, and modern O’Odham knowledge. Results indicate that the least cost path aligned with the location of documented trails in some segments but diverted away from others. Areas where the least cost path overlaps documented trails suggests these segments were commonly used trails for routine activities, as they were the most expedient route. However, because the least cost path does not come near documented trails in most segments, the songs also demonstrate Akimel O’Odham cognitive mapping of the landscape.
  • A Human-Scale Redesign of University Boulevard in Tucson, Arizona

    Risser, Annika; College of Architecture, Planning and Landscape Architecture; Apanovich, Nataliya; Apanovich, Nataliya; Wong, Kenny; Bernal, Sandra (The University of Arizona., 2024-05)
    Cities across the United States and the world have adopted Complete Streets principles in the design of streetscapes and roadways. Cities have also supported road closure to vehicle traffic at varying scales. These two strategies for sustainable development enhance the public benefit provided by streets. These benefits can include stronger social communities, safer roads across modes of transportation, and improved health of people and environments. This study proposes that Complete Streets principles be applied to University Boulevard in Tucson, Arizona to address current issues with sustainability on this road. This includes a lack of shade, seating, and infrastructure that results in an uncomfortable user experience for pedestrians, cyclists, and drivers. University Boulevard is adjacent to the University of Arizona campus in Tucson, Arizona and is a popular destination for dining and nightlife among students and long-time Tucson residents. Additionally, University Boulevard serves as a gateway to the University that many commuters rely on to get to school and work. By implementing the design proposed in this research, the City of Tucson can address current issues on this road. This article proposes that the City of Tucson adopt both Complete Streets and car-free principles to complete a sustainable redesign of University Boulevard and increase the public benefit for users of this two-block stretch of road from Park Avenue to Euclid Avenue. This research was designed to engage the public in the visioning process for a future redesign of this road and measure levels of support for the closure of University Boulevard to vehicle traffic, as well as the perceived need for human-scale, sustainable design elements in any future redevelopment proposals.
  • Evaluating Intimate Partner Violence (IPV) Education in MD and PharmD Training Programs at The University of Arizona: Seeking Improvement

    Strouse, Isabel; The University of Arizona College of Medicine - Phoenix; Handmaker, Hirsch (The University of Arizona., 2024)
    Intimate partner violence (IPV) is a public health crisis, and recognizing IPV in clinical settings can be challenging, requiring a specialized skillset. Gaps in health care professionals’ competency regarding IPV highlight the need for enhanced IPV education. This prospective cohort study assessed the extent and effectiveness of IPV education among medical (MD) and pharmacy (PharmD) students at The University of Arizona (UA), following an initiative through The UA College of Pharmacy that targeted increased IPV screening in rural Arizona pharmacies. After email recruitment, a two-part survey that assessed student perceptions of IPV and objective IPV knowledge was distributed to participants from January to February 2024. Planned comparisons evaluated the extent of IPV education, student readiness, and objective knowledge within and between the student cohorts. 164 students participated (144 MD, 20 PharmD) with no differences in demographics. MD students expressed higher confidence (p = 0.002) and received more education (p = 0.003) related to IPV than PharmD students. For MD students, positive correlations were found between education and confidence (r = 0.49, p < 0.001, 95% CI [0.36, 0.61]), readiness (r = 0.63, p < 0.001, 95% CI [0.52, 0.72]), and objective knowledge (r = 0.27, p < 0.001, 95% CI [0.11, 0.42]). There were no significant correlations in the PharmD cohort. Overall, MD students exhibited greater preparedness in addressing IPV-related concerns compared to PharmD students. MD students also showed a consistent association between extent of IPV education and measures of preparedness. These findings highlight the importance of IPV education and serve to better understand the landscape of IPV curriculum across healthcare training programs, with the ultimate goal of preparing future clinicians to recognize and support IPV survivors across many clinical contexts.
  • A Comparative Analysis of the Risk of Decompression Sickness with respect to Dive Profile and Associated Dive Depth, Ascent Rate, Dive Era, and Inspired Gas Composition

    Jayaraman, Meghna; Irwin, Chase; Lee, Ernest; The University of Arizona College of Medicine - Phoenix; Lee, Ernest (The University of Arizona., 2024)
    To date, no systematic review has been conducted to assess the compounded risk of decompression sickness (DCS) with respect to more nuanced variables such as dive profile (dive depth, ascent rate), dive era, and inspired gas composition. The aim of this study is to determine if the diving profile of deep-sea diving alters the risk of developing DCS in divers. This study is a retrospective cohort study of 6,050 deep sea diving events and the corresponding 331 instances of DCS experienced by the underwater divers. The primary outcome was DCS development between the “saturation” and “repetitive and multi-level” experimental dive profile cohorts, compared to the “single-dive” control dive profile cohort. This was assessed via adjusted risk ratios. Further subgroup/confounding factor analyses were additionally performed to assess secondary outcomes of DCS development as a function of dive depth, ascent rate, dive era, and inspired gas composition. Divers and dives enrolled in this study were obtained from a study by the Naval Medical Research Center titled “The Dive Profiles and Manifestations of Decompression Sickness Cases After Air and Nitrogen-Oxygen Dives.” Dives were performed and recorded from 1940-1997. IRB approval was not required as this study utilized publicly available deidentified data. With marginal DCS events excluded due to reporting discrepancies, this study evaluated a total of 5,861 deep sea dives. Primary outcome evaluated was DCS development between the “saturation”, “repetitive and multi-level”, and “single- dive” control dive profiles evaluated by adjusted risk ratios. Secondary outcomes included DCS development as a function of dive depth, ascent rate, dive era, and inspired gas composition evaluated by adjusted risk ratios. Demographic differences were assessed via Chi-square test for categorical variables and One-way ANOVA for continuous variables. Primary and secondary outcomes were analyzed via adjusted log- binomial regression models. Primary dive profile analysis consisted of (1) “single-dive” square-profile control cohort of 3,817 dives and 189 (4.95%) instances of DCS, (2) a “repetitive and multi-level (R&M)” cohort of 1,584 dives and 67 (4.23%) instances of DCS, and (3) a “saturation” cohort of 649 dives and 75 (11.56%) instances of DCS. Single dive profile subgroups included Air Gas Inspiration: 3,139 dives and 164 (5.22%) instances of DCS and Non-Air Gas Inspiration: 678 dives and 25 (3.69%) instances of DCS. Repetitive and multi-level dive profile subgroups included Air Gas Inspiration: 849 dives and 39 (4.59%) instances of DCS and Non-Air Gas Inspiration: 735 dives and 28 (3.81%) instances of DCS. Mean(SD) dive depths (meters) for the single, R&M, and saturation cohorts were 145.2 (90.8), 91.7 (38.9), 57.2 (32.2), respectively. Mean (SD) ascent rates (meters/min) for the single, R&M, and saturation cohorts were 54.0 (114.5), 18.7 (22.4), 5.5 (12.09), respectively. Conclusions and Relevance: Primary dive profile analysis reflects that divers from the “Saturation” group were 3.65 times (95% CI: 2.63 – 5.05) more likely to experience the event then divers from the “Single: Air Gas” control group. These results were statistically significant. With regards to secondary outcomes, adjusted RRs differences in inspired gas composition do not appear to be statistically significant. Dive era, expectedly, appears to play the most significant role in determining risk of DCS, and for every 10-foot increase in depth, divers were 1.03 times (95% CI: 1.01 – 1.05) more likely to experience the event. These results were statistically significant. Ascent rate analysis was unreliable as the ascent time values in the original data are “more or less useful depending on the dive type (essentially of no use in the repetitive and multi-level dives)”.
  • Spatial Analysis of Traffic Crashes In Pima County Exploring Social And Environmental Components

    Korgaonkar, Yoganand; Gamba Gomez, Nancy (The University of Arizona., 2024)
    This study aims to understand traffic crash dynamics, focusing on hotspot identification at critical intersections and roads connecting to major freeways in Pima County. It seeks insights into social and environmental factors impacting road safety, facilitating informed decision-making. Despite fatalities comprising only 1.42% of crashes compared to the majority categorized as no injury at 60.90%, the significance of traffic accidents remains high due to their substantial economic, emotional, and social costs, impacting the broader community and region. This project utilizes advanced GIS techniques to analyze traffic crashes in Pima County from 2019 to 2023, aiming to identify high-frequency crash locations, analyze crash types, discern timing and frequency patterns, and investigate human and environmental factors contributing to incidents. Detailed accident data undergoes Hot Spot analysis, emphasizing crash severity, with an initial 100-meter bandwidth to identify significant clusters. Demographic and socioeconomic mapping, referencing non-residential zones, supplements the analysis. The Social Vulnerability Index (SVI) offers insights into regional social dynamics. Most accidents occur in favorable conditions, such as good lighting and clear weather, with rear-end collisions predominant. This pattern implies that driver distraction could play a significant role in these incidents.

    Korgaonkar, Yoganand; Eastman, Todd K. (The University of Arizona., 2024)
    The manual web-based download and use of United States Geological Survey (USGS) Landsat imagery to perform raster-based geoprocessing analysis is often time-consuming and repetitive in nature. Searching, sorting, and downloading images to cover an area of interest is overly complicated and error-prone due to the naming conventions of the output files and the excellent level of data management skills required. The purposes of this project are to automate web-based searches based upon date and coverage area and the download of Landsat imagery so that the Geographic Information Systems (GIS) analyst can focus on geoprocessing analysis and spend less time on data management. The solution to this problem is in the form of an ArcGIS toolbox developed and written in Python. Inputs to the toolbox include a selected feature (point, line, or polygon), date of interest, percent maximum cloud coverage, and a buffer length used to calculate an extent that buffers the input feature. Given the user’s input, the toolbox searches the online Landsat USGS database for the date and study area of interest to locate the necessary Landsat imagery. The toolbox output is the downloaded Landsat imagery in the form of an ArcGIS mosaic dataset that encompasses the user’s input extent. The toolbox typically completes this automated process within three to five minutes as compared to a manual process that may take hours if not days, depending on the input extent complexity. This toolbox will provide time-saving benefits to any analyst interested in utilizing Landsat imagery in their geoprocessing analysis.

    Korgaonkar, Yoga; Holt, Tamara (The University of Arizona., 2024)
    The Arizona National Scenic Trail (AZNST) is an 800-mile non-motorized path the length of Arizona from the border of Mexico to Utah, crossing very diverse terrain from deserts, mountains, canyons, and forests. The Arizona Trail Association (ATA) is a non-profit organization that protects, maintains, enhances, promotes, and sustains the Arizona National Scenic Trail for hikers, mountain bikers, and equestrians. The ATA organization has 12 trail re-routing projects in 4 of the National Forests (Kaibab, Coconino, Tonto, and Coronado) totaling 70 miles of various lengths (0.1 miles – 25 miles). The goal of this study is to create a least-cost corridor and optimal path model in ArcGIS Model Builder to help streamline the process of determining trail reroutes that will incorporate environmental sustainability, safety, comfort, and aesthetics. The study focuses on three sections of the AZNST within the Coconino National Forest – Anderson Mesa (12 miles), Maverick (25 miles), and East Clear Creek (3 miles). These study areas were chosen since extensive field work and GPS field data points have been gathered from two of the locations (Anderson Mesa and Maverick). The field data was compared to the least-cost corridor and optimal path generated by the model. The model was applied to the third study area, East Clear Creek, which has steeper terrain to verify if the least-cost corridor and optimal path followed the natural contour lines of the terrain.

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