Digital Commons Network^™

Neighborhood And Environmental Predictors Of At-Risk And Problem Gambling In Massachusetts, Kendra E. Pugh

Graduate Doctoral Dissertations

Despite the widespread impact and negative effects of problem gambling (PG), limited attention has been paid to the environment where PG occurs. This study investigated the relationship between gambling on lottery and the zip code where gambling occurs, as well as the influence of individual-level characteristics that predict at-risk or problem gambling (AR/PG), among Massachusetts residents. A GIS analysis was conducted to identify vulnerable areas based on neighborhood characteristics, lottery sales, and AR/PG. Overall, residents of disadvantaged areas did not spend more money on lottery or have more lottery agents than residents of less disadvantaged areas. Some indicators of disadvantage …

From Mapping Place To Mapping Space In Library Gis Work, Lena Denis

Journal of Critical Digital Librarianship

At many academic libraries, library workers run the teaching, general reference consultations, technical troubleshooting, and software and licensing maintenance in Geographic Information Systems (GIS) for their institutions. This is very much the case in the Data Services unit of Johns Hopkins University’s Sheridan Libraries, where staff receive requests for help with a wide variety of mapping projects every semester. Sometimes they are straightforward requests for technical assistance, but sometimes they underpin much deeper investigations into how to situate people and significant events through time and geographic settings. This article discusses these types of requests in the context of the philosophical …

Utilization Of Gis In Tracking Disinterment And Movement Of Unknown Us Wwii War Dead: Foundations For A Geospatial Approach To Addressing Commingled Remains, Ella Axelrod

Anthropology Department: Theses

In the aftermath of World War II, the US was faced with the monumental task of finding and identifying over 405,000 service members who did not survive the conflict (McDermott, 2005, p. 1). Of these 405,000, 81,000 remain missing and 2,498 remain unidentified in cemeteries across Europe alone (American Battle Monuments Commission, 2022). Often, these individuals were interred and disinterred multiple times, crossing the continent in the journey from loss incident or battlefield to their final resting place. Commingling, the accidental mixing of remains, is an ever-present concern in the forensic identification of individuals from mass casualty incidents (Belcher et …

Spatiotemporal Change Detection Of The Alpine Meadows At Holcomb Valley, San Bernardino Mountain National Forest, Using Gis And Remote Sensing Techniques, Rama Ewing

Electronic Theses, Projects, and Dissertations

Holcomb Valley, with a general elevation between 2200-2257m, is in the Northeast of Big Bear Lake in the San Bernardino Mountains. Holcomb Valley is covered by Alpine meadows, unlike most mountain landscapes, which are rarely found in Mediterranean climates such as California. The cultural-environmental history of the San Bernardino Mountains in the past century speaks of intense anthropogenic activities such as timbering, grazing, gold mining, and extreme climate changes (i.e., drought, fires, floods). A study is conducted to identify and calculate the changes in the Alpine meadows at Holcomb Valley. The climatical data has been acquired to compute and visualize …

Computer-Based Forage Management Tools: Historical, Current, And Future Applications, David B. Hannaway, C. Daly, D. F. Chapman, B. B. Baker, A. S. Cooper

IGC Proceedings (1997-2023)

Forage management has been an important human activity since the beginning of civilization. By comparison, the personal computer has been available only in the immediate past. The software developed to deal with the complexity of climate, soil, plant, animal, and socioeconomic factors has seen huge changes in a few decades. Mainframe computers facilitated numerical calculations for exploring relationships among dozens of variables. Personal computers opened the door for more individual scientist creativity and routine communication. Web-based communication globalised the option for multidisciplinary teams to tackle problems. Forage-related computer applications abound, allowing farmers, ranchers, and others to more effectively manage the …

Application Of Geospatial Technologies For Urban Planning And Management, Flood Modelling, Urban Heat Island, Water Resources Management And Planning, Hydrological Modelling, Climate Change And Water Quality Modelling Etc., Anoop Kumar Shukla Dr.

Basic Science Collection

Human activities are altering the natural landscape on the earth’s surface. The thermal environment of densely populated cities is also experiencing rapid change. Remote sensing provides the necessary spatial and temporal data to understand cities' complex human–climate interactions. However, the complex temporal and spatial variability of human activities, urban landscapes, and urban climates make understanding the interactions among them challenging. The study of human–climate interactions is also complicated by the mixed pixels of remote sensing data.

Therefore, I am looking to collaborate with those who want to do research in the field of Remote Sensing and GIS application in water …

Spatial And Age Disparities In Covid-19 Outcomes, Qian Huang

Theses and Dissertations

COVID-19 has caused significant social, economic, environmental, and political impacts globally and affected communities unequally in the U.S. The pandemic has also sparked interest in age-specific manifestations of infection, for example, studies confirmed the risk of increasing age with COVID-19 severity. However, the nonstationarity effects of health determinants among age groups have not been well examined. This study aims to explore the nonstationarity effects of social, behavioral, environmental, health care access, and political contexts on COVID-19 outcomes. This study poses three broad questions: 1) how did COVID-19 vaccinations align with COVID-19 daily cases and deaths in the United States; 2) …

Combining Historic Records And Multi-Criteria Habitat Suitability Analysis For The Potential Reintroduction Of Lake Sturgeon (Acipenser Fulvescens Rafinesque) Into Tributaries Of Lake Erie, Kylie P. Wirebach, Christopher Pennuto, Dimitry Gorsky

Biology Theses

Predicting the location and quality of habitat for imperiled species is an increasingly important application of modeling technology. The Lake Sturgeon (Acipenser fulvescens) is a widely-extirpated fish of the Laurentian Great Lakes whose recovery is dependent on the availability and connectivity of suitable stream habitat today. This is especially true in Lake Erie, where the largest Lake Sturgeon fishery was once found. I predicted that modern habitat suitability would be dependent on land use legacies from the past 200 years, with western Lake Erie tributaries having less suitable habitat compared to the eastern Lake Erie tributaries. I developed a multi-criteria …

Empirical Evaluation Of Route-Based Landscape Experiences, Garet Openshaw

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis explores a method of visual analysis that aims to create a more in-depth understanding of how individuals see and visually perceive their environment. Here we explore a geospatial tool, called Visual Magnitude, to assess road-based experiences. We aimed to provide evidence of a relationship between the tool and scenic rating preferences from a survey. The content of this thesis is split between two articles. The first article, contained in Chapter 2, focuses on optimizing the selection of viewpoints along route-based envrionments. In this study we ask the question is there an optimal sampling rate of viewpoints along a …

Evaluating Spatial-Temporal Patterns In Us Tornado Occurrence With Space Time Cube Analysis And Linear Kernel Density Estimation: 1950-2019, Darrell L. Wiser

Electronic Theses and Dissertations

This research estimated the spatial-temporal patterns of tornadoes in the continental United States from 1950-2019 using the National Weather Service Storm Prediction Center’s Severe Weather GIS (SVRGIS) database. This study employed Space-Time Cube Analysis and Linear Kernel Density (Kernel Density Linear Process, (KDLP)) rather than the standard Kernel Density Estimation (KDE) approach; to evaluate whether tornado hotspot locations and intensities shift over time.

The first phase of the study utilized KDLP to map changes in tornado hotspots and qualitatively assess decadal shifts in hotspot locations and intensities by occurrence and magnitude between decades using ArcGIS Pro and CrimeStat. Next an …

Pesticide Application Management Toolset For Worker Protection Standards, Nathan W. Thorson

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

The application of Pesticides has become a widely adopted practice within modern agriculture, however this practice poses a significant health risk to farm workers and crop advisors when pesticide exposures occur. Current safety standards require documentation of each application to help mitigate human exposure, yet these standards rely heavily on antiquated data collection formats and complex communication systems putting little emphasis on notification timeliness. Our objective was to reduce the risk of pesticide exposure for all farm workers and crop advisors by utilizing technological automation processes to reduce the number of links within the communication system. This proved successful though …

Plants And People: Foraging To Farming Foodway Transition From Late Archaic To Early Woodland In Western North Carolina, U.S.A., Catherine Linn Herring

Masters Theses

During the Late Archaic to Early Woodland Transition, 3,200 years B.P. [Before Present], some gathering communities in the Eastern Woodlands began to increase their cultivation of plants. While archaeologists have located several sites in the Upper Tennessee River Valley and near the Great Smoky Mountains National Park in Tennessee that explicitly show an increase in plant cultivation, less research has focused on the North Carolina Appalachian Summit Region. This paper uses paleoethnobotanical data and spatial analysis of site locations to explore cultivation and settlement patterns in Jackson and Swain Counties, North Carolina. Data include site locations obtained from the North …

Exchange And Social Interaction In The Tennessee River Valley: A Geospatial Approach To The Analysis Of Late Archaic Archaeological Sites, Justin S. Bailey

Masters Theses

The cultural manifestation known as the Shell Mound Archaic persisted in the lower Midwest and Midsouth region of the Eastern United States for over four millennia beginning in the Middle Archaic ca. 8900 cal BP and terminating at the end of the Late Archaic ca 3200 cal BP. A geospatial approach is applied to the analysis of exotic material exchange of the Late Archaic (ca. 5800-3200 cal BP) to assess how foraging peoples in the Tennessee River Valley interacted and persisted during this time. Exotic material items manufactured from copper, marine shell, steatite, and other nonlocal materials demonstrate distinct spatial …

Tracking And Estimating The Commingling Of Missing U.S. Service Personnel: A Gis And Forensic Anthropological Approach, Mason Mckinney

Anthropology Department: Theses

During times of war, the remains of fallen U.S. military service members overseas are often difficult to track postmortem as they move from their recovery location to a permanent cemetery. After a recovery, remains are typically sent to multiple temporary cemeteries, morgues, and/or identification points before reaching their final resting place. Repeated disinterments and reinterments among vast numbers of remains in multiple temporary locations may lead to unintended commingling. This analysis is meant to examine the postmortem movement of multiple U.S. military members and assess their potential for commingling based on historical records and identification reports supplied by the Defense …

Systemic Approaches For Professional Development On Diverse Learners In Rural Communities, Elizabeth Thorne Wallington, Adrienne Johnson

Educational Considerations

While rural communities are not monolithic, many have seen recent shifts in demographics from historically homogenous populations to more racially, culturally, and linguistically diverse residents (e.g. Sharp & Lee, 2017; Brenner, 2016). Without clear systems for addressing such changes, reactionary policies to address the accompanying conflict can establish marginalized communities, deficit-based perspectives, and structural inequities (Lee & Sharp, 2017). As an alternative approach, this paper outlines promising practices for systemic approaches to addressing the ongoing professional development needs for teachers in rural communities who are supporting students from increasingly diverse backgrounds. These practices provide the support and professional development that …

Quantifying Human Mobility Patterns During Disruptive Events With Geospatial Big Data, Yuqin Jiang

Theses and Dissertations

Understanding human mobility patterns is an essence for geography and geographical information science. Although existing studies have found that human mobility patterns are highly predictable, such patterns can be disrupted by events, ranging from sports games to natural hazard caused evacuations. However, traditional data collection methods that heavily rely on self-reported travel behaviors are often delayed and at a small scale, and thus are often not sufficient to reveal the disrupted human mobility patterns. Fortunately, with the development of geolocating-related technologies, multiple platforms are able to capture human mobility data in unprecedented spatiotemporal scales and granularities. These data, such as …

Evaluation Of Measurement Data Across Eight Gis Basemaps Using Drumlins: Combining Basemaps Is Optimal, Gretchen A. Wambach, Alexander K. Stewart

The Compass: Earth Science Journal of Sigma Gamma Epsilon

Choosing the best basemap for landform data collection and analysis is fundamental for accurate measurements and usability. Different types of basemaps may affect how we perceive relief through a map (Phillips et al., 1975); thereby, affecting the precision of data collected. This project collected length and azimuth data of 60 drumlins in Western, NY from four different, ArcGIS online (AGOL)-provided basemaps, as well as two parallel-to-strike and two perpendicular-to-strike hillshades (n=4). Testing the mean length (1,662m, ±529) and azimuth (171°, ±0.3) data for uniformity across basemaps determined if any basemap is more or less reliable for data collection. The Terrain …

Osm-Gan: Using Generative Adversarial Networks For Detecting Change In High-Resolution Spatial Images, Lasith Niroshan, James Carswell

Articles

Detecting changes to built environment objects such as buildings/roads/etc. in aerial/satellite (spatial) imagery is necessary to keep online maps and various value-added LBS applications up-to-date. However, recognising such changes automatically is not a trivial task, and there are many different approaches to this problem in the literature. This paper proposes an automated end-to-end workflow to address this problem by combining OpenStreetMap (OSM) vectors of building footprints with a machine learning Generative Adversarial Network (GAN) model - where two neural networks compete to become more accurate at predicting changes to building objects in spatial imagery. Notably, our proposed OSM-GAN architecture achieved …

Mapping The Covid-19 Pandemic In Staten Island, Vincenzo Mezzio

Student Theses

COVID-19 has had diverging effects in New York City. Out of the five boroughs, Staten Island has one of the largest percentages of COVID-19 cases relative to population. This research examines key social and spatial factors that contribute to the increase in COVID-19 cases in Staten Island). It asks: Which parts of Staten Island have higher rates of transmission of COVID-19? Which parts of the borough have higher population who are more vulnerable to COVID-19? What is the relationship between the location of vaccination centers with the rates of COVID-19 cases? Using Geographic Information Systems (GIS), this research examines the …

Using Geospatial Analysis To Evaluate Relationships Between Cancer Incidence And Social Factors In Brooklyn, Ny, Sheena Philogene

Theses and Dissertations

This study explored the spatial distribution of cancer incidence in Brooklyn, NY. Using publicly available data, the relationships between cancer incidence and factors linked to cancer were investigated. Furthermore, the study explored the value of using large amounts of data with GIS techniques to quickly analyze geographic trends for cancer.

Evaluating The Confluent Impact Of Geology, Housing Characteristics, And Season On Indoor Radon In Atlanta Metropolitan Area, The United States, Eunhee Kim

Geosciences Theses

Radon is a radioactive gas that potentially causes lung cancer after long-term exposure. This thesis investigated the confluent impact of geology, housing characteristics, and season on indoor radonand identified the significant factors associated with elevated radon levels in Atlanta metropolitan area, USA. Using the data obtained from the private vendor, Air Chek, this study identified hot spots of high radon levels. The hot spots were found in Douglas, Fulton, DeKalb, and Gwinnett. Through binary logistic regression analysis, this study identified that the granite and orthogneiss bedrock, the ranch-style house, the presence of a basement, and the test in cold seasons …

Multi-Criteria Evaluation Model For Classifying Marginal Cropland In Nebraska Using Historical Crop Yield And Biophysical Characteristics, Andrew Laws

School of Natural Resources: Dissertations, Theses, and Student Research

Marginal cropland is suboptimal due to historically low and variable productivity and limiting biophysical characteristics. To support future agricultural management and policy decisions in Nebraska, U.S.A, it is important to understand where cropland is marginal for its two most economically important crops: corn (Zea mays) and soybean (Glycine max). As corn and soybean are frequently planted in a crop rotation, it is important to consider if there is a relationship with cropland marginality. Based on the current literature, there exists a need for a flexible yet robust methodology for identifying marginal land at different scales, which …

A Gis Approach To Landscape Scale Archaeoacoustics, Kristy Elizabeth Primeau

Legacy Theses & Dissertations (2009 - 2024)

This research presents the development and critical assessment of an Archaeoacoustics Toolbox for Geographic Information Systems (GIS) technology written in the Python programming language, and applies this methodology to cross cultural case studies exploring the importance of soundsheds in an anthropological-archaeological context. As counterpoint to a common critique of experiential theoretical approaches the Soundshed Analysis and Soundshed Analysis-Variable Cover tools provide a replicable means of modeling baseline estimates of the experience of sound. Testing against modern acoustical studies establishing scientific accuracy, and explanations of the sound physics calculations performed by the tools are provided. The tools are then applied to …

Using A Geospatial Analysis Tool To Visualize Water Impairments And Engage Stakeholders In The San Bernardino National Forest, Jovany Estrada

Electronic Theses, Projects, and Dissertations

High quality water is an important resource that is integral to supporting environmental and human health. It is essential for economic, social and environmental purposes. Impairments to water resources can be attributed to anthropogenic sources that are associated with terrestrial activities including urban development and agricultural activities. Community-Based Participatory Research (CBPR) is an approach that can be used to include community input to improve water management strategies. In the San Bernardino National Forest (SBNF) area in southern California, there are disadvantaged communities that can benefit from a CBPR study to increase water quality in the area. A geovisualization tool will …

Insular Interconnectivity In The Viking Age: A Geospatial View From Norse Jarlshof, Trent Michael Carney

Anthropology Department: Theses

During the Viking Age, settlements and trading centers were often located near lakes, seas, waterways, and sailing routes. As such, access to other locations was facilitated, whether for the purpose of settlement, trade, resource acquisition, or conflict, by some form of seafaring vessel or watercraft. Over the course of the Scandinavian Diaspora, a level of cultural and economic interconnectedness was maintained between mainland Scandinavia and the settlements in the North Atlantic region. This shared link with Scandinavia contributed to the development of local connections between insular and coastal sites within the broader diasporic network. This thesis considers the archaeological evidence …

Urban Forests And Their Potential To Combat Food Insecurity: Analyzing Street Trees In Baltimore, Md For Their Edibility, Victoria Bearden

Environment and Sustainability Honors Papers

Food insecure environments, in which residents lack consistent access to nutritious food materials, can occur in urban settings. Literature on urban forests suggests that trees can provide a range of provisioning ecosystem services, including edible uses. We consider this to determine if street trees in Baltimore, Maryland have the potential to provide nutritious food materials to address food insecurity in Healthy Food Priority Areas (HFPA), designated by Johns Hopkins Center for a Livable Future. Our analysis utilizes the Plants For a Future database and the geospatial hotspot analysis tool in Esri’s ArcMap to determine the edible quality ratings (EQR) of …

History To Data: Converting Topographic Maps Into Digital Elevation Models, Briar Pierce, Eileen G. Ernenwein

Appalachian Student Research Forum

Studying past landscapes existing before the modern era (pre-1945) carries great difficulty. Historical maps can offer insight to researchers, but the two-dimensional cartographic features on these maps remain largely inaccessible for geospatial analyses. This study investigates the idea of unlocking the data within historical maps to be utilized by Geographic Information Systems (GIS). To realize this goal, the cartographic features must be extracted and converted into digital vector (line) and raster (grid) data. For the purposes of this study, we focus on the extraction of elevation contour lines in United States Geological Survey (USGS) historical topographic maps. These lines are …

Geospatial Assessment Of Groundwater Quality With The Distinctive Portrayal Of Heavy Metals In The United Arab Emirates, Imen Ben Salem, Yousef Nazzal, Fares M. Howari, Manish Sharma, Jagadish Kumar Mogaraju, Cijo M. Xavier

All Works

Groundwater is a valuable resource, and its quality is critical to human survival. Optimal farming and urbanization degraded groundwater reserves. This research investigates and reports the spatial variability of selected heavy metals developed in the Liwa area of the United Arab Emirates. Forty water samples were collected from existing wells and analyzed for different elements. Principal components analysis was applied to a subgroup of the data set in terms of their usefulness for determining the variability of groundwater quality variables. Geographic information systems were used to produce contour maps to analyze the distribution of heavy metals. Ordinary kriging was used …

Bridging The Geospatial Education-Workforce Divide: A Case Study On How Higher Education Can Address The Emerging Geospatial Drivers And Trends Of The Intelligent Web Mapping Era, Wendy Rose Stout

Doctoral Dissertations and Projects

The purpose of this exploratory collective case study is to discover how geospatial education can meet the geospatial workforce needs of the Commonwealth of Virginia, in the emerging intelligent web mapping era. Geospatial education uses geographic information systems (GIS) to enable student learning by increasing in-depth spatial analysis and meaning using geotechnology tools (Baker & White, 2003). Bandura’s (1977) self-efficacy theory and geography concept of spatial thinking form an integrated theoretical framework of spatial cognition for this study. Data collection included in-depth interviews of twelve geospatial stakeholders, documentation collection, and supporting Q methodology to determine the viewpoints of a total …

Comparing Geostatistical Methods On Flood Risk To Infrastructure In Southeast Asia Using Google Street View Imagery: A Master’S Thesis, Christopher S. Aime

Theses

Urban flooding poses a serious challenge to development and the lives of people, particularly the residents of the rapidly expanding towns and cities in developing countries. Floods affect people's livelihood in Southeast (SE) Asia, ranging from death and injury to damaged homes, infrastructures, and agricultural land. In addition, floods expose infrastructure to more risks of structural damage, wearing them out, and aging them quickly, thus increasing maintenance and replacement costs.

Presented study found associations between such infrastructure elements as sill height, floors, building structures (e.g., attached vs. detached), slope, drainage, land-use, and street conditions. The study used Mechanical Turk method …