Open Access. Powered by Scholars. Published by Universities.®

Geographic Information Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

1,855 Full-Text Articles 3,145 Authors 1,570,816 Downloads 164 Institutions

All Articles in Geographic Information Sciences

Faceted Search

1,855 full-text articles. Page 24 of 83.

Using Structure Location Data To Map The Wildland-Urban Interface In Montana, Usa, Alexander R. Ketchpaw 2022 South Dakota State University

Using Structure Location Data To Map The Wildland-Urban Interface In Montana, Usa, Alexander R. Ketchpaw

Electronic Theses and Dissertations

The increasing wildfire activity and rapid population growth in the wildfire-urban interface (WUI) make more Americans exposed to wildfire risk. WUI mapping plays a significant role in wildfire management. This study used the Microsoft building footprint (MBF) and the Montana address/structure framework datasets to map the WUI in Montana. A systematic comparison of the following three types of WUI was performed: the WUI maps derived from the Montana address/structure framework dataset (WUI-P), the WUI maps derived from derived from the MBF dataset (WUI-S), and the Radeloff WUI map derived from census data (WUI-Z). The results show that WUI-S and WUI-P …


Fire Emissions In The Tropical Indonesia: Improved Estimation And Driving Forces Investigation, Xiaoman Lu 2022 South Dakota State University

Fire Emissions In The Tropical Indonesia: Improved Estimation And Driving Forces Investigation, Xiaoman Lu

Electronic Theses and Dissertations

Indonesia has experienced frequent fires since the 1970s due to large-scale peatland conversion and extensive drainage for agricultural development. Fire emissions released from these fires have led to Indonesia being the world’s 3rd largest emitter of greenhouse gases in certain years. Given that fire emissions severely affect climate, weather, and the human environment, numerous approaches have been developed to estimate fire emissions. However, existing emission estimates differ largely by a factor of four in this tropical country because of frequent cloud interferences and low-temperature smoldering fires. Therefore, this dissertation aims to improve the quantification of Indonesian fire emissions through enhanced …


Hanford Nuclear Site Cultural Resource Gis Analysis: A Case Study Investigating Pre-Contact Travel Networks And Site And Artifact Locations, Luciana R. Chester 2022 Central Washington University

Hanford Nuclear Site Cultural Resource Gis Analysis: A Case Study Investigating Pre-Contact Travel Networks And Site And Artifact Locations, Luciana R. Chester

All Master's Theses

This thesis uses Global Information Systems (GIS) to investigate travel networks and site locations on the Hanford Nuclear Site. I construct a spatially referenced base map of historical travel routes, compare amounts of areas with and without archaeological survey, and analyze the location of archaeological sites. Government Land Office maps (GLO’s) mapped trails between1860’s and 1890’s. GIS analysis helps calculate relative frequencies and the densities of site and artifact types within 2 km buffers along the Columbia River corridor and trails. Collaboration between agencies and tribes facilitates consultation on all matters related to Hanford, and shared management of data covering …


Development And Utilization Of Geodatabase: Predicting Biodiversity In Equatorial Guinea, Africa, Nicholas Treusch 2022 Michigan Technological University

Development And Utilization Of Geodatabase: Predicting Biodiversity In Equatorial Guinea, Africa, Nicholas Treusch

Dissertations, Master's Theses and Master's Reports

After declaring independence in 1968 and discovering oil reserves in 1995, Equatorial Guinea has arisen as one of the wealthier countries in Africa but unfortunately has become one of the most volatile countries as well, with the numerous military coups and disproportionate distribution of wealth. This nation also houses some of the most diverse wildlife on earth, with several endangered species of mammals, as well as reptilian and bird species that are unique only to Equatorial Guinea. With increased bushmeat demand increasing in the last two decades, illegal hunting activities have increased as well, even in national parks. Because of …


A Framework For And Design Of A Smart Academic Building Using Sensors, Citizen Participation, And Volunteered Geographic Information, Neelam Raigangar 2022 Claremont Graduate University

A Framework For And Design Of A Smart Academic Building Using Sensors, Citizen Participation, And Volunteered Geographic Information, Neelam Raigangar

CGU Theses & Dissertations

Population growth and migration patterns have shown an influx of residents from rural to urban environments. To deal with the problems caused by unprecedented urban influx, cities should plan to use technology in a smart and distinctive way. Tackling at the city scale is hard. But a set of smart buildings that are interconnected by technology will lead to smarter communities which are then interconnected to create a smart city. Smart lobby, building, community, or city is distinguished by its application of integrated software, hardware, and network technologies, along with access to real-time data enabling decision-making, facilitating tracing, tracking and …


Mapping Log Pd/Cu Ratios In Vulcan And Investigation Into The Origin Of The Magenta Zone In The Northmet Deposit: Hoyt Lakes Minnesota, Usa, Paige M. C. M. Bauer 2022 Minnesota State University, Mankato

Mapping Log Pd/Cu Ratios In Vulcan And Investigation Into The Origin Of The Magenta Zone In The Northmet Deposit: Hoyt Lakes Minnesota, Usa, Paige M. C. M. Bauer

All Graduate Theses, Dissertations, and Other Capstone Projects

The purpose of this research is to investigate the origin of the PGE-rich Magenta Zone, a geologic feature within the NorthMet Deposit; a Cu-Ni-PGE deposit within a layered intrusion at the base of the 1.1 Ga Duluth Complex. The hypothesis is that a late-stage silicate magma containing dispersed sulfide droplets had infiltrated a permeable crystal mush resulting in the emplacement of the Magenta Zone. While mineralization is typically found along the base of the Duluth Complex, the Magenta Zone lies ~200 m above typical mineralization. Previous research has shown that the Magenta Zone cross cuts the younger concordant units. To …


Shadow-Based Automatic Building Height Estimation From High Spatial Resolution Satellite Imagery, Lonnie Lee Byrnside III 2022 Missouri State University

Shadow-Based Automatic Building Height Estimation From High Spatial Resolution Satellite Imagery, Lonnie Lee Byrnside Iii

Graduate Theses/Dissertations

Three-dimensional city (3D) models are very useful in supporting natural disaster preparation and response. LiDAR surveying is currently the main method by which 3D city models are created; however, LiDAR data on a local scale is hard to obtain for developing countries. This project sought to test whether or not urban feature height data obtained using the photogrammetric sun-angle shadow method is a viable alternative to LiDAR-derived 3D city models. A core element of this work was the development of a toolset to be shared freely to the public to promote crowdsourcing of 3D building data. Prior works were reviewed …


Building Roseburg Public Library’S Community Demographics Dashboard, Spencer Keller 2022 Portland State University

Building Roseburg Public Library’S Community Demographics Dashboard, Spencer Keller

Masters in GIS Practicum Reports

In a globally connected society becoming increasingly reliant on data, community GIS practitioners help bring spatial data to community organizations and other community partners in the form of data acquisition, collection, analytics, visualization, and presentation. Many Community GIS practitioners help their community partners better serve their community by harnessing the power of GIS, including community partners who advocate for and provide services to their community. Public libraries are one such service-providing entity that has been struggling in modern times, especially in rural areas. The Center for Geography Education in Oregon received grant funding in 2020 from the Institute of Museum …


Environmental Racism In Baltimore: A Geographical Study Into The Connections Between Environmental Toxins And Public Health, Genevieve Block 2022 Bucknell University

Environmental Racism In Baltimore: A Geographical Study Into The Connections Between Environmental Toxins And Public Health, Genevieve Block

Honors Theses

An investigation into the relationship between environmental toxins and environmental racism in Baltimore City, Maryland.


Wilderness And The Geotag: Exploring The Claim That "Geotagging Ruins Nature" In The Alpine Lakes Wilderness, Wa, Mara Gans 2022 Central Washington University

Wilderness And The Geotag: Exploring The Claim That "Geotagging Ruins Nature" In The Alpine Lakes Wilderness, Wa, Mara Gans

All Master's Theses

This research explores the claim that “geotagging ruins nature” by quantifying and qualifying patterns in geotag use and visitors’ experiences in the Alpine Lakes Wilderness, in Washington, United States. Many have raised concerns that geotags increase recreational visitation to public lands, which subsequently contributes to negative resource impacts. Others, however, claim that geotagging has made the outdoors more accessible to less privileged communities and raise concerns that condemning geotags will perpetuate the exclusion of certain groups from outdoor recreation. This debate is studied within federally designated Wilderness, which is legally defined as “untrammeled by man,” a definition rooted in problematic …


Utility Scale Agrivoltaics Development Proximate To Michigan Communities With 100% Renewable Energy Goals, Kabanda Herve Christian Sheja 2022 Michigan Technological University

Utility Scale Agrivoltaics Development Proximate To Michigan Communities With 100% Renewable Energy Goals, Kabanda Herve Christian Sheja

Dissertations, Master's Theses and Master's Reports

This report aims to assess the potential of agrivoltaics (combined solar and agricultural systems) for development geographically proximate to the six Michigan (MI) communities that have set 100% renewable energy (RE) goals. I focus on one major research question: What is the total acreage of low-impact sites available for utility-scale (USS) agrivoltaics development proximate (within county boundaries) to MI communities with 100% RE goals? SAM is used to estimate land acreage required for a 10 MW agrivoltaic system development. ArcGIS Pro is used to determine the total acreage of low-impact sites proximate to MI communities with 100% RE goals.

Proximate …


Three Method Tsunami Vulnerability Analysis Of The United States East Coast, Joshua Knolla 2022 Fort Hays State University

Three Method Tsunami Vulnerability Analysis Of The United States East Coast, Joshua Knolla

Master's Theses or Doctor of Nursing Practice

The East Coast of the United States could be susceptible to tsunamis or even mega tsunamis. With this in mind it becomes essential to answer the question: Where is vulnerability to a tsunami greatest along the East Coast of the United States? To answer this question the following parameters have been set. First, the study will include county level subdivisions along the USEC that have coasts along the Atlantic Ocean. The possible source regions of a tsunami or mega tsunami are also noted. This analysis includes both social and physical factors with nine and five of them considered respectively. Three …


Comparing Geostatistical Methods On Flood Risk To Infrastructure In Southeast Asia Using Google Street View Imagery: A Master’S Thesis, Christopher S. Aime 2022 City University of New York (CUNY)

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

Theses and Dissertations

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 …


Development And Disparity In Glasgow: The Desirability Of Urban Water Proximity, Brian Morgan 2022 Lehman College City University of New York

Development And Disparity In Glasgow: The Desirability Of Urban Water Proximity, Brian Morgan

Theses and Dissertations

This study was conducted to examine the possibility that a spatial relationship exists between demographic trends considered to be indicative of gentrification, and ongoing regenerative activity taking place along an urban canal and the adjacent neighborhoods in a northern section of Glasgow, Scotland. Rates of demographic change between the 2001 and 2011 Scottish Census results for the study area were contrasted with the same variables citywide, using the census Output Area (OA) as the aggregate unit. Results were combined to produce an index of gentrification. Positive results towards gentrification were identified in many of the OAs for a significant number …


Geographic Trends Of Terrorist Attacks And Active Shooter Scenarios Perpetrated Inside U.S. Military Installations And Facilities, 1970-2019, Aaron James Ebbenga 2022 Minnesota State University, Mankato

Geographic Trends Of Terrorist Attacks And Active Shooter Scenarios Perpetrated Inside U.S. Military Installations And Facilities, 1970-2019, Aaron James Ebbenga

All Graduate Theses, Dissertations, and Other Capstone Projects

In recent years, a variety of devastating terrorist attacks have been perpetrated against American military installations, spurring not only national outrage but also global public upheaval. Our public preconception of considering military bases as impenetrable to the dangers of active shooter scenarios and bomb threats has since become widely scrutinized by worldwide media sources. For this reason, the people of the U.S. have expressed concerns about the safety of the nation’s military personnel. The diverse nature of the attacks, committed both by domestic and foreign terrorist organizations, illustrates vulnerabilities of American military installations and support facilities. These types of attacks …


Arctic Greening: Characterizing Tundra Vegetation From In-Situ And Remotely Sensed Observations, Shira Ann Ellenson 2022 University of Montana

Arctic Greening: Characterizing Tundra Vegetation From In-Situ And Remotely Sensed Observations, Shira Ann Ellenson

Graduate Student Theses, Dissertations, & Professional Papers

As the Arctic has warmed at twice the rate of the global average, vegetation productivity has also been increasing. While satellite remote sensing is useful for summarizing Arctic-wide trends, changes in tundra species heights, densities, composition, and distribution can be missed at coarse resolution. Smaller, plot-scale studies are necessary to better understand vegetation dynamics at fine scales occurring on the ground.

In 1995, high-resolution traditional aerial photographs and in-situ measurements of vegetation characteristics were taken at a series of plots established on the Alaskan North Slope. Repeat field surveys in 2021 revealed increases in plant cover for deciduous shrubs and …


Emerging Hot Spot Analysis To Indicate Forest Conservation Priorities And Efficacy On Regional To Continental Scales: A Study Of Forest Change In Selva Maya 2000-2020, Nicholas Cuba, Laura A. Sauls, Anthony J. Bebbington, Denise Humphreys Bebbington, Avecita Chicchon, Pilar Delpino Marimón, Oscar Diaz, Susanna Hecht, Susan Kandel, Tracey Osborne, Rebecca Ray, Madelyn Rivera, John Rogan, Viviana Zalles 2022 Auburn University at Montgomery

Emerging Hot Spot Analysis To Indicate Forest Conservation Priorities And Efficacy On Regional To Continental Scales: A Study Of Forest Change In Selva Maya 2000-2020, Nicholas Cuba, Laura A. Sauls, Anthony J. Bebbington, Denise Humphreys Bebbington, Avecita Chicchon, Pilar Delpino Marimón, Oscar Diaz, Susanna Hecht, Susan Kandel, Tracey Osborne, Rebecca Ray, Madelyn Rivera, John Rogan, Viviana Zalles

Geography

Despite the importance of preserving contiguous tropical forest areas to maintain biodiversity and terrestrial carbon stocks, methodological challenges continue to hinder broad-scale analysis of threats to these forests. Emerging Hot Spot Analysis (EHSA) is a spatial-statistical method that conveys complex information about the temporal dynamics of deforestation across a range of moderate to coarse spatial scales. Using Global Forest Change (GFC) data as inputs, EHSA produces spatially comprehensive, gridded outputs that represent a standardized, reproduceable way to instantiate contiguous forest tracts as spatial objects. Doing so allows aggregation of other GFC-derived values and analysis of alternative geographic configurations besides sub-national …


Quantifying Water Security In West Virginia And The Potomac River Basin, Eric Carl Edvard Sinius Sjostedt 2022 West Virginia University

Quantifying Water Security In West Virginia And The Potomac River Basin, Eric Carl Edvard Sinius Sjostedt

Graduate Theses, Dissertations, and Problem Reports (ETD)

All healthy ecosystems, communities, and economies are founded on access to clean, adequate water sources to support ecosystem services, provide clean drinking water, and allow the production of water-intensive goods and services. The state of available water resources must be analyzed through the lens of water security, defined as the capability to safeguard sustainable access to adequate quantities of acceptable quality water for people, the economy, and ecosystems. Mountain regions are sources of freshwater resources for downstream regions, which produce disproportionately higher runoff than downstream regions. As a result, mountain regions are often referred to as natural water towers …


Examining The Spatial Relationship Between Maternal Morbidity, Access To Health Care, And Community Characteristics In West Virginia, Sarah E. Woolard 2022 West Virginia University

Examining The Spatial Relationship Between Maternal Morbidity, Access To Health Care, And Community Characteristics In West Virginia, Sarah E. Woolard

Graduate Theses, Dissertations, and Problem Reports (ETD)

Maternal-related morbidity rates in the United States have risen almost three fold since the early 1990’s. Issues related to rurality, socioeconomic disparities, and pre-existing health conditions increase the risk of poor pregnancy outcomes and introduce barriers to accessing advanced maternal health care. West Virginia (WV) has higher maternal morbidity rates than many other states in the United States (US), and is considered to be driven by all 55 counties being classified as Appalachian, possessing the highest prenatal smoking rate in the US, and having disparities in access to health care. Despite this, no previous studies have evaluated maternal morbidity in …


Agent-Based Modelling And Big Data: Applications For Maritime Traffic Analysis, Marc SIRIZZOTTI 2022 Wilfrid Laurier University

Agent-Based Modelling And Big Data: Applications For Maritime Traffic Analysis, Marc Sirizzotti

Theses and Dissertations (Comprehensive)

Agent based modeling (ABM) is a powerful tool for examining complex systems in many scientific applications, including maritime transport systems. Growing demands for freight transport and increased industry emphasis on reducing environmental impacts have heightened the focus on vessel and port efficiency. This research aimed to create a maritime route planning model to simulate vessel movement in all waterways. The goal of the ship routing model developed in this research was to develop a simulation tool capable of reproducing real world shipping routes useful for navigation planning, with emphasis on port scheduling and potential application for further use and exploration. …


Digital Commons powered by bepress