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2018

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Articles 1 - 30 of 45

Full-Text Articles in Spatial Science

Spatial Changes Of Pilgrimage Centers In Pilgrimage Studies – Review And Contribution To Future Research, Justyna Liro, Izabela Sołjan, Elżbieta Bilska-Wodecka Dec 2018

Spatial Changes Of Pilgrimage Centers In Pilgrimage Studies – Review And Contribution To Future Research, Justyna Liro, Izabela Sołjan, Elżbieta Bilska-Wodecka

International Journal of Religious Tourism and Pilgrimage

Pilgrimages and pilgrimage centres are a subject of research often undertaken from the perspective of geographic sciences. Geographical research on pilgrimage movement and sanctuaries is important due to its focus on the spatial aspect. This article analyses the current state of research on pilgrimage centres. The main trends of the current studies include: the phenomenon of pilgrimage in terms of religion, society, culture and tourism; as well as its impact, including on the development of the settlement and; studies of pilgrimage centres, in particular their impact on space in various spatial and temporal scales, as well as; the conclusions drawn …


Comparing Beijing's And Tokyo's Population Growths, Ernest M. Oleksy Dec 2018

Comparing Beijing's And Tokyo's Population Growths, Ernest M. Oleksy

The Downtown Review: An Interdisciplinary Journal Written and Peer-Reviewed by Mandel Honors College Students at Cleveland State University

The growth of the human population has led to the formation of largely populated agglomerations known as megacities. Although megacities can be found on multiple continents, Asia’s collection displays how megacities can develop in their own directions. Japan’s megacity of Tokyo, like other Japanese megacities, has adopted a western approach. China’s Beijing, on the other hand, continues to embrace its eastern roots. These megacities may differ in their ideologies, but they share in experiencing similar phenomena. One of these phenomena is population growth.


Open Source Foundations For Spatial Decision Support Systems, Jochen Albrecht Dec 2018

Open Source Foundations For Spatial Decision Support Systems, Jochen Albrecht

Publications and Research

Spatial Decision Support Systems (SDSS) were a hot topic in the 1990s, when researchers tried to imbue GIS with additional decision support features. Successful practical developments such as HAZUS or CommunityViz have since been built, based on commercial desktop software and without much heed for theory other than what underlies their process models. Others, like UrbanSim, have been completely overhauled twice but without much external scrutiny. Both the practical and the theoretical foundations of decision support systems have developed considerably over the past 20 years. This article presents an overview of these developments and then looks at what corresponding tools …


Using Deep Learning To Forecast Spatiotemporal Crime Patterns, Shuzhan Fan Dec 2018

Using Deep Learning To Forecast Spatiotemporal Crime Patterns, Shuzhan Fan

LSU Doctoral Dissertations

The distributional patterns of crime occurrences are closely related to their spatial, temporal, and environmental contexts. It has been a hot topic for researchers and crime analysts to discover such complex relationships in order to forecast crime, both spatially and temporally. Many factors play a role in the occurrences of crimes. Conventional crime forecasting research has primarily relied on historical crime records and socioeconomic data, while ignoring the rich social media and other environmental context data. The large volume of data requires a more appropriate forecasting framework with the ability to take in massive multimodal data and possibly achieve better …


Investigating Smoke Aerosol Emission Coefficients Using Modis Active Fire And Aerosol Products – A Case Study In The Conus And Indonesia, Xiaoman Lu, Xiaoyang Zhang, Fangjun Li, Mark Cochrane Dec 2018

Investigating Smoke Aerosol Emission Coefficients Using Modis Active Fire And Aerosol Products – A Case Study In The Conus And Indonesia, Xiaoman Lu, Xiaoyang Zhang, Fangjun Li, Mark Cochrane

Global Land Surface Season Data Sets

This data set is in relation to the paper of the same title, which has been submitted to the Journal of Geophysical Research: Biogeosciences.

Instructions for viewing the data in “Readme.txt”





The Evacuation Of Phnom Penh During The Cambodian Genocide: Applying Spatial Video Geonarratives To The Study Of Genocide, James A. Tyner, Andrew Curtis, Sokvisal Kimsroy, Chhunly Chhay Dec 2018

The Evacuation Of Phnom Penh During The Cambodian Genocide: Applying Spatial Video Geonarratives To The Study Of Genocide, James A. Tyner, Andrew Curtis, Sokvisal Kimsroy, Chhunly Chhay

Genocide Studies and Prevention: An International Journal

On April 17, 1975 Khmer Rouge soldiers began the forcible evacuation of Phnom Penh, Cambodia’s capital city. The evacuation has been the subject of considerable debate surrounding the Cambodian genocide and remains a topic of prime importance toward the understanding of Khmer Rouge policy and practice. In this field note, we present a geographically-informed account of the evacuation in order to provide a more fine-grained analysis of Khmer Rouge practice. More specifically, employing spatial video geonarratives, we provide a systematic investigation of the evacuation, as retraced by six evacuees. In so doing we contribute also to the emergent use of …


Evaluation Of Spatial Generalization Characteristics Of A Robust Classifier As Applied To Coral Reef Habitats In Remote Islands Of The Pacific Ocean, Justin J. Gapper, Hesham El-Askary, Erik J. Linstead, Thomas Piechota Nov 2018

Evaluation Of Spatial Generalization Characteristics Of A Robust Classifier As Applied To Coral Reef Habitats In Remote Islands Of The Pacific Ocean, Justin J. Gapper, Hesham El-Askary, Erik J. Linstead, Thomas Piechota

Mathematics, Physics, and Computer Science Faculty Articles and Research

This study was an evaluation of the spectral signature generalization properties of coral across four remote Pacific Ocean reefs. The sites under consideration have not been the subject of previous studies for coral classification using remote sensing data. Previous research regarding using remote sensing to identify reefs has been limited to in-situ assessment, with some researchers also performing temporal analysis of a selected area of interest. This study expanded the previous in-situ analyses by evaluating the ability of a basic predictor, Linear Discriminant Analysis (LDA), trained on Depth Invariant Indices calculated from the spectral signature of coral in one location …


Web-Based Archaeology And Collaborative Research, Fabrizio Galeazzi, Heather Richards-Rissetto Nov 2018

Web-Based Archaeology And Collaborative Research, Fabrizio Galeazzi, Heather Richards-Rissetto

Department of Anthropology: Faculty Publications

While digital technologies have been part of archaeology for more than fifty years, archaeologists still look for more efficient methodologies to integrate digital practices of fieldwork recording with data management, analysis, and ultimately interpretation.This Special Issue of the Journal of Field Archaeology gathers international scholars affiliated with universities, organizations, and commercial enterprises working in the field of Digital Archaeology. Our goal is to offer a discussion to the international academic community and practitioners. While the approach is interdisciplinary, our primary audience remains readers interested in web technology and collaborative platforms in archaeology


Finding Ft. Smith And Ft. Star In Smithland, Ky, Austin Valentine, Austin Valentine Jr. Nov 2018

Finding Ft. Smith And Ft. Star In Smithland, Ky, Austin Valentine, Austin Valentine Jr.

Student Scholarship & Creative Works

Through the utilization of Light Detection and Ranging data, one can compile 3-dimensional models that can be used to spot anomalies of historical interest. These anomalies, if recognizable by the trained eye, can then be used to geo-reference historic maps to gain a better understanding of historic sites as well as to reveal possible areas of interests or unknown features.

By using a 3-dimensional model compiled by LiDAR data, I was able to geo-reference a December 13th, 1861 map of the Civil War defenses for the town of Smithland, Kentucky. Through this process, I have been able to …


Scaling Effect Of Fused Aster-Modis Land Surface Temperature In An Urban Environment, Hua Liu, Qihao Weng Nov 2018

Scaling Effect Of Fused Aster-Modis Land Surface Temperature In An Urban Environment, Hua Liu, Qihao Weng

Political Science & Geography Faculty Publications

There is limited research in land surface temperatures (LST) simulation using image fusion techniques, especially studies addressing the downscaling effect of LST image fusion. LST simulation and associated downscaling effect can potentially benefit the thermal studies requiring both high spatial and temporal resolutions. This study simulated LSTs based on observed Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Terra Moderate Resolution Imaging Spectroradiometer (MODIS) LST imagery with Spatial and Temporal Adaptive Reflectance Fusion Model, and investigated the downscaling effect of LST image fusion at 15, 30, 60, 90, 120, 250, 500, and 1000 m spatial resolutions. The study …


A Comparative Analysis Of Non-Invasive Exploration Techniques Lidar Vs. Aerial Photography – Kincaid Mounds Archaeological Site, Austin Valentine, Austin Valentine Jr. Oct 2018

A Comparative Analysis Of Non-Invasive Exploration Techniques Lidar Vs. Aerial Photography – Kincaid Mounds Archaeological Site, Austin Valentine, Austin Valentine Jr.

Student Scholarship & Creative Works

KINCAID MOUNDS - A Comparative Analysis of Non-invasive Exploration Techniques is a journal of my efforts to conduct non-invasive site investigations at the Kincaid Mounds Archaeological site in Southern Illinois. Through the utilization of tools such as; drones, photography, satellite imaging, light distance and ranging, and powerful analysis software, I will demonstrate a number of useful techniques which one can utilize to conduct independent site investigations without disturbing a sites landscape or structural integrity. Thus, illustrating differences between those techniques and pointing out their strengths and weaknesses in their various applications.

During this journey, I will also venture into the …


Assessing Ppgis Usability And Its Relationship To Spatial Data Production: A Case Study, Timothy Michael Hitchins Sep 2018

Assessing Ppgis Usability And Its Relationship To Spatial Data Production: A Case Study, Timothy Michael Hitchins

Dissertations and Theses

Modern Geoweb-enabled PPGIS methodologies incorporate interactive map applications as the main driver for public engagement and data collection. However, little research explores exactly how the public interact with these applications to produce spatial data, a fact that contributes to criticisms of final data quality. Usability evaluation offers a solution for developing better PPGIS data production systems by identifying problems in the application interface for which the public engage. Drawing on a case study example of a PPGIS application developed to collect socio-spatial data from members of a random public, this paper addresses usability in a three-stage approach. First, controlled experimentation …


The Catalyst Effect Of Historic Preservation: A Spatial Analysis Of The Impact Of Historic District Designation On Housing Renovations In New York City, Ali R. Mostafa Aug 2018

The Catalyst Effect Of Historic Preservation: A Spatial Analysis Of The Impact Of Historic District Designation On Housing Renovations In New York City, Ali R. Mostafa

Theses and Dissertations

The constraints on property use along with the economic merits of historic districts are critical points in the debate over preservation policies. Improving the existing housing stock is a substantial economic activity and a significant part of the nation’s overall construction industry. The purpose of this study is to present an empirical analysis of the relationship between historic district designation and renovation decisions. The results of the analysis found that historic preservation does not inhibit the renovation activity of single-family homeowners. However, contrary to the claims made by proponents, it does not give a powerful incentive for owners in undesignated …


Drone Photography Vs. Light Detection And Ranging (Lidar) Data - Which Source Is Best Utilized In 3-Dimensional Modeling Applications?, Austin Valentine Jun 2018

Drone Photography Vs. Light Detection And Ranging (Lidar) Data - Which Source Is Best Utilized In 3-Dimensional Modeling Applications?, Austin Valentine

Student Scholarship & Creative Works

Drone Photography vs. Light Detection and Ranging (LiDAR) Data — Which Source is Best Utilized in 3-Dimensional Modeling Applications? is an evaluation essay comparing the analysis and modeling of both drone photography and LiDAR data. This paper gives a brief introduction into my choice of utilization between these two techniques, both of which were applied to 3-dimensional modeling of the Kincaid Mounds Archaeological site in southern Illinois. Thus, illustrating some of the advantages and disadvantages associated with both methods.


African Savanna Vegetation Model, Christoffer Axelsson Jun 2018

African Savanna Vegetation Model, Christoffer Axelsson

Graduate Student Datasets and Models

The project aimed at creating a model that can simulate the effect of environmental factors on trees and grasses in an African savanna landscape. It enables simulating the growth of woody and herbaceous vegetation in an African savanna landscape, where the user can define the environmental conditions. Input to the model includes:

  • Monthly precipitation
  • Fire regime
  • Grazing pressure
  • Soil type
  • Slope
  • Attributes of the woody species, such as maximum crown size and sensitivity to light conditions, drought, and fire.


Temporal And Spatiotemporal Investigation Of Tourist Attraction Visit Sentiment On Twitter, Jose J. Padilla, Hamdi Kavak, Christopher J. Lynch, Ross J. Gore, Saikou Y. Diallo Jun 2018

Temporal And Spatiotemporal Investigation Of Tourist Attraction Visit Sentiment On Twitter, Jose J. Padilla, Hamdi Kavak, Christopher J. Lynch, Ross J. Gore, Saikou Y. Diallo

VMASC Publications

In this paper, we propose a sentiment-based approach to investigate the temporal and spatiotemporal effects on tourists' emotions when visiting a city's tourist destinations. Our approach consists of four steps: data collection and preprocessing from social media; visitor origin identification; visit sentiment identification; and temporal and spatiotemporal analysis. The temporal and spatiotemporal dimensions include day of the year, season of the year, day of the week, location sentiment progression, enjoyment measure, and multi-location sentiment progression. We apply this approach to the city of Chicago using over eight million tweets. Results show that seasonal weather, as well as special days and …


The Persistence Of Segregation In The 21st Century, Paul A. Jargowsky Jun 2018

The Persistence Of Segregation In The 21st Century, Paul A. Jargowsky

Minnesota Journal of Law & Inequality

No abstract provided.


Spatial Distribution Of Partner-Seeking Men Who Have Sex With Men Using Geosocial Networking Apps: Epidemiologic Study, Angel B. Algarin, Patrick J. Ward, W. Jay Christian, Abby E. Rudolph, Ian W. Holloway, April M. Young May 2018

Spatial Distribution Of Partner-Seeking Men Who Have Sex With Men Using Geosocial Networking Apps: Epidemiologic Study, Angel B. Algarin, Patrick J. Ward, W. Jay Christian, Abby E. Rudolph, Ian W. Holloway, April M. Young

Epidemiology and Environmental Health Faculty Publications

Background: Geosocial networking apps have made sexual partner-seeking easier for men who have sex with men, raising both challenges and opportunities for human immunodeficiency virus and sexually transmitted infection prevention and research. Most studies on men who have sex with men geosocial networking app use have been conducted in large urban areas, despite research indicating similar patterns of online- and app-based sex-seeking among men who have sex with men in rural and midsize cities.

Objective: The goal of our research was to examine the spatial distribution of geosocial networking app usage and characterize areas with increasing numbers of partner-seeking men …


Using Digital Mapping Techniques To Rapidly Document Vulnerable Historical Landscapes In Coastal Louisiana: Holt Cemetery Case Study, Alahna Moore May 2018

Using Digital Mapping Techniques To Rapidly Document Vulnerable Historical Landscapes In Coastal Louisiana: Holt Cemetery Case Study, Alahna Moore

LSU New Orleans Theses and Dissertations

This thesis outlines a technique for rapid documentation of historic sites in volatile cultural landscapes. Using Holt Cemetery as an exemplary case study, a workflow was developed incorporating RTK terrain survey, UAS aerial imagery, photogrammetry, GIS, and smartphone data collection in order to create a multifaceted database of the material and spatial conditions, as well as the patterns of use, that exist at the cemetery.

The purpose of this research is to create a framework for improving the speed of data creation and increasing the accessibility of information regarding threatened cultural resources. It is intended that these processes can be …


The Impacts Of Green Spaces On Crime In New York City, Matthew Edward Iannone Jr. May 2018

The Impacts Of Green Spaces On Crime In New York City, Matthew Edward Iannone Jr.

Student Theses 2015-Present

From the early 1960s through the mid-1990s, crime in New York City ran rampant. With a gradually dwindling police during this time, a high unemployment rate, and an rapidly increasing metropolitan population, crime peaked in the early 1990s, with the murder rate hitting a record-high of 2,245 in 1990. When Mayor Rudy Giuliani took office in 1994 and appoint Bill Bratton as the NYPD police commissioner, these rates immediately plunged. Numerous factors may have contributed to this sudden decline in crime: the police force grew significantly through the 1990s, more criminals were placed and held in prison, and the economic …


Assessment Of The Socio-Environmental Impacts Of The Urban Expansion Using Gis And Remote Sensing In The City Of Guayaquil, Ecuador., Erika P. Jimenez Rivera May 2018

Assessment Of The Socio-Environmental Impacts Of The Urban Expansion Using Gis And Remote Sensing In The City Of Guayaquil, Ecuador., Erika P. Jimenez Rivera

Theses and Dissertations

This thesis investigates the impacts of the urban expansion from 1990 to 2010 in Guayaquil, Ecuador using geospatial technologies. It incorporates census and land cover data to identify the social and environmental repercussions through Hot Spot Analysis, land cover classification, and Markov chains model.


Mapping Energy Access In Rural Tanzania: 2017 Summer Internship With The World Resources Institute, Naramena Mccray May 2018

Mapping Energy Access In Rural Tanzania: 2017 Summer Internship With The World Resources Institute, Naramena Mccray

Sustainability and Social Justice

This report details my 2017 summer internship experience; both the report and the internship being requirements of the GIS for Development and Environment Graduate Degree at Clark University. My internship was hosted by the World Resources Institute, an international non-profit organization in Washington D.C. As implied by my position title, “Energy Access-GIS Intern”, I spent the duration of my internship (14 weeks) applying my geospatial expertise to address the topic of energy access which is an issue effecting rural areas of many developing countries. I was given the responsibility of creating an interactive map application of Tanzania accessible by energy …


U.S. Fish And Wildlife Service Summer Fellowship: Gis Study Of Threatened And Endangered Species In Colorado, Jeanie Lai May 2018

U.S. Fish And Wildlife Service Summer Fellowship: Gis Study Of Threatened And Endangered Species In Colorado, Jeanie Lai

Sustainability and Social Justice

This report provides a detailed account of my fellowship experience with the U.S. Fish and Wildlife Service (USFWS) Region 6 Office in Lakewood, CO during the summer of 2017 made possible by the Student Conservation Association (SCA) sponsored by Directorate Fellows Program. The internship was completed in the Region 6’s Branch of Decision Support in Ecological Services under the direction of Spatial Ecologist John Guinotte. I was a GIS Technician tasked with work responsibilities involving listed threatened and endangered species relevant to the region. Those work responsibilities included refining spatial Area of Influence (AOI) ranges, updating databases, and creating a …


Three Essays On Understanding Municipal Water Demand In The Western United States, Michael J. O'Donnell Apr 2018

Three Essays On Understanding Municipal Water Demand In The Western United States, Michael J. O'Donnell

Economics ETDs

Scarce water resources in the Western United States, in concert with population growth and climate change, constitute a need to better understand factors that impact water demand. In this dissertation, Chapter 1 provides cultural and historical context for water use in the West and argues that understanding water demand is important, especially when managing scarcity is a goal. Chapter 2 uses aggregate city-level data from four municipalities in New Mexico to investigate seasonal trends and breakpoints. Although per premises and aggregate demand tend to decline in all geographies investigated, existence and timing of breakpoints varies by geography. Additionally, drivers of …


Assessing Land Deformation And Sea Encroachment In The Nile Delta, Egypt, Esayas Gebremichael Apr 2018

Assessing Land Deformation And Sea Encroachment In The Nile Delta, Egypt, Esayas Gebremichael

Research and Creative Activities Poster Day

Persistent scatterer interferometric analyses were conducted on a stack of 84 Envisat ASAR scenes spanning 7 years (2004 to 2010) over the entire Nile Delta of Egypt and surroundings to monitor the ongoing spatial and temporal land deformation, identify the factors controlling the deformation, and model the interplay between sea level rise and land subsidence to identify areas and populations threatened by sea encroachment by the end of the 21st century. Findings include: (1) general patterns of subsidence in the northern delta, near-steady (none) subsidence in the southern delta, separated by a previously mapped flexure zone undergoing uplift; (2) high …


Landsat Sentinel Registration Source Codes: Linux, Lin Yan, David P. Roy Apr 2018

Landsat Sentinel Registration Source Codes: Linux, Lin Yan, David P. Roy

Landsat Sentinel Registration Source Codes

  • LSReg is open-source software (coded in C) for precise automatic registration of Landsat-8 (L8) Collection-1 and Sentinel-2 (S2) Level 1C products, including L8S2, S2S2 and L8L8.
  • Version 2.0 is a Linux version. The main download includes the source codes and manual.The “Additional Files” include the test data and the outputs generated from the test data by LSReg 2.0.
  • Major functionalities of the software:
    • Flexibility in handling input/output images resolutions and spatial coverages.
    • Image registration supporting translation, affine and 2nd order polynomial transformations.
    • Classic implementation of least-squares matching (LSM) with up to 0.02 pixel matching accuracy on medium-spatial-resolution optical-wavelength remote …


Optimization Of Geosynchronous Space Situational Awareness Architectures Using Parallel Computation, Michael S. Felten Mar 2018

Optimization Of Geosynchronous Space Situational Awareness Architectures Using Parallel Computation, Michael S. Felten

Theses and Dissertations

Improving Space Situational Awareness (SSA) remains one of the DoD’s top priorities. Current research at the Air Force Institute of Technology (AFIT) has shown that modeling and simulation of Geosynchronous Earth Orbit (GEO) SSA architectures can identify optimal combinations of ground and space-based sensors. This thesis extends previous research by expanding design boundaries and refining the methodology. A genetic algorithm examined this increased trade space containing 1022 possible architectures. Experimental trials that would have taken over 100 years on a desktop computer were completed in weeks using a high-performance computer containing over 125,000 cores. The results of the optimizer clearly …


Predicting Potential Fire Severity Using Vegetation, Topography And Surface Moisture Availability In A Eurasian Boreal Forest Landscape, Lei Fang, Jian Yang, Megan White, Zhihua Liu Mar 2018

Predicting Potential Fire Severity Using Vegetation, Topography And Surface Moisture Availability In A Eurasian Boreal Forest Landscape, Lei Fang, Jian Yang, Megan White, Zhihua Liu

Forestry and Natural Resources Faculty Publications

Severity of wildfires is a critical component of the fire regime and plays an important role in determining forest ecosystem response to fire disturbance. Predicting spatial distribution of potential fire severity can be valuable in guiding fire and fuel management planning. Spatial controls on fire severity patterns have attracted growing interest, but few studies have attempted to predict potential fire severity in fire-prone Eurasian boreal forests. Furthermore, the influences of fire weather variation on spatial heterogeneity of fire severity remain poorly understood at fine scales. We assessed the relative importance and influence of pre-fire vegetation, topography, and surface moisture availability …


Out-Group Threat Or Inter-Group Contact Theory? Out-Group Attitudes And Interaction In Times Of Diversity Growth, Annette Jacoby Feb 2018

Out-Group Threat Or Inter-Group Contact Theory? Out-Group Attitudes And Interaction In Times Of Diversity Growth, Annette Jacoby

Dissertations, Theses, and Capstone Projects

Much attention has been devoted to the presumed negative effect of diversity growth on various dimensions of attitudes and interaction between different racial and ethnic groups. However, whether the claims hold true is unclear- there is a considerable controversy over the impact of changing diversity on societal behavior. With ongoing migration, the United States are becoming more and more ethnically diverse but a sound debate on racial and ethnic composition and its consequences for inter-group interactions and attitudes towards others has not yet been possible due to a lack of causally-oriented panel studies.

In this study, two important features are …


Expansion Of Major Urban Areas In The Us Great Plains From 2000 To 2009 Using Satellite Scatterometer Data, Lan H. Nguyen, Son V. Nghiem, Geoffrey M. Henebry Jan 2018

Expansion Of Major Urban Areas In The Us Great Plains From 2000 To 2009 Using Satellite Scatterometer Data, Lan H. Nguyen, Son V. Nghiem, Geoffrey M. Henebry

GSCE Faculty Publications

A consistent dataset delineating and characterizing changes in urban environments will be valuable for socioeconomic and environmental research and for sustainable urban development. Remotely sensed data have been long used to map urban extent and infrastructure at various spatial and spectral resolutions. Although many datasets and approaches have been tried, there is not yet a universal way to map urban extents across the world. Here we combined a microwave scatterometer (QuikSCAT) dataset at ~1 km posting with percent impervious surface area (%ISA) data from the National Land Cover Dataset (NLCD) that was generated from Landsat data, and ambient population data …