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open access

Finding Terroir in Southwest Iowa

Description: Terroir combines the physical landscape of the vineyard with the grapevines and the methods and techniques used to produce wine from the grapes. This study used a GIS to identify the characteristics of the physical landscape in Pottawattamie, Mills, Montgomery, Fremont, and Page counties in southwestern Iowa. The components were combined in the GIS using a weighted linear index to identify areas suitable for vineyard development and to identify the general characteristics of the area. Vineyard … more
Date: August 2013
Creator: Deines, Dory
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Examining the Role of Latitude and Differential Insolation in Asymmetrical Valley Development

Description: Valley development through erosional processes typically tends to create symmetrical valleys. Over time, water cuts through the substrate to create valleys, gorges, and canyons for which the sides are the valley are evenly sloped. However, there are anomalies to this process. Asymmetrical valleys have been well-documented even in areas of uniform substrate or little tectonic uplift. One proposed explanation for the asymmetry of these valleys is differential insolation. This may lead to diff… more
Date: August 2013
Creator: Curran, Lorna L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Using Geographic Information Systems for the Functional Assessment of Texas Coastal Prairie Freshwater Wetlands Around Galveston Bay

Description: The objective of this study was to deploy a conceptual framework developed by M. Forbes using a geographic information system (GIS) approach to assess the functionality of wetlands in the Galveston Bay Area of Texas. This study utilized geospatial datasets which included National Wetland Inventory maps (NWI), LiDAR data, National Agriculture Imagery Program (NAIP) imagery and USGS National Land Cover data to assess the capacity of wetlands to store surface water and remove pollutants, including… more
Date: May 2010
Creator: Enwright, Nicholas
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Spatially Explicit Environmental Health Surveillance Framework for Tick-Borne Diseases

Description: In this paper, I will show how applying a spatially explicit context to an existing environmental health surveillance framework is vital for more complete surveillance of disease, and for disease prevention and intervention strategies. As a case study to test the viability of a spatial approach to this existing framework, the risk of human exposure to Lyme disease will be estimated. This spatially explicit framework divides the surveillance process into three components: hazard surveillance, ex… more
Date: August 2010
Creator: Aviña, Aldo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Spatial Analysis of North Central Texas Traffic Fatalities 2001-2006

Description: A traditional two dimensional (planar) statistical analysis was used to identify the clustering types of North Central Texas traffic fatalities occurring in 2001-2006. Over 3,700 crash locations clustered in ways that were unlike other researched regions. A two dimensional (x and y coordinates) space was manipulated to mimic a one dimensional network to identify the tightest clustering of fatalities in the nearly 400,000 crashes reported from state agencies from 2003-2006. The roadway design wa… more
Date: December 2010
Creator: Rafferty, Paula S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Habitat Fragmentation by Land-Use Change: One-Horned Rhinoceros in Nepal and Red-Cockaded Woodpecker in Texas

Description: This research focuses on the spatial analysis of the habitat of two vulnerable species, the one-horn rhinoceros in the grasslands of southern Nepal, and the red-cockaded woodpecker in the Piney woods of southeast Texas, in the USA. A study sites relevant for biodiversity conservation was selected in each country: Chitwan National Park in Nepal, and areas near the Big Thicket National Preserve in Texas. Land-use differs in the two study areas: the first is still undergoing agrarian development w… more
Date: December 2010
Creator: Thapa, Vivek
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Influence of Urban Green Spaces on Declining Bumble Bees (Hymenoptera: Apidae)

Description: Bumble bees (Bombus spp.) are adept pollinators of countless cultivated and wild flowering plants, but many species have experienced declines in recent decades. Though urban sprawl has been implicated as a driving force of such losses, urban green spaces hold the potential to serve as habitat islands for bumble bees. As human populations continue to grow and metropolitan areas become larger, the survival of many bumble bee species will hinge on the identification and implementation of appropria… more
Date: May 2016
Creator: Beckham, Jessica L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Addressing Social Elements of Wildfire: Risk, Response, and Recovery in Highland Village, TX

Description: Representatives of the City of Highland Village expressed concern over the risk of wildfires for their community. Anthropology provides many tools for and examples of disaster assessment of preparedness, response, recovery, and mitigation. These tools combined with Geographic Information Systems (GIS) can provide a holistic, cultural ecological look at how such a disaster may take place in the city. The project's methods included a detailed survey of preparedness steps which was analyzed usin… more
Date: May 2016
Creator: MacKinnon, Jessica
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Looking Outward from the Village: The Contingencies of Soil Moisture on the Prehistoric Farmed Landscape near Goodman Point Pueblo

Description: Ancestral Pueblo communities of the central Mesa Verde region (CMVR) became increasingly reliant on agriculture for their subsistence needs during Basketmaker III (BMIII) through Terminal Pueblo III (TPIII) (AD 600–1300) periods. Researchers have been studying the Ancestral Pueblo people for over a century using a variety of methods to understand the relationships between climate, agriculture, population, and settlement patterns. While these methods and research have produced a well-developed c… more
Date: August 2016
Creator: Brown, Andrew D
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Developing a Soil Moisture-Based Irrigation Scheduling Tool (SMIST) Using Web-GIS Technology

Description: Software as a service (SaaS) is a primary working pattern and a significant application model for next generation Internet application. Web GIS services are the new generation of the Software as a service that can provide the hosted spatial data and GIS functionalities to the practical customized applications. This study focused on developing a webGIS based application, Soil Moisture-Based Irrigation Scheduling Tool (SMIST), for predicting soil moisture in the next seven days using the soil moi… more
Date: May 2018
Creator: Nikfal, Mohammadreza
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Influence of the Choice of Disease Mapping Method on Population Characteristics in Areas of High Disease Burdens

Description: Disease maps are powerful tools for depicting spatial variations in disease risk and its underlying drivers.  However, producing effective disease maps requires careful consideration of the statistical and spatial properties of the disease data. In fact, the choice of mapping method influences the resulting spatial pattern of the disease, as well as the understanding of its underlying population characteristics. New developments in mapping methods and software in addition to continuing improvem… more
Date: December 2015
Creator: Desai, Khyati Sanket
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Archaeological Site Vulnerability Modeling for Cultural Resources Management Based on Historic Aerial Photogrammetry and LiDAR

Description: GIS has been utilized in cultural resources management for decades, yet its application has been largely isolated to predicting the occurrence of archaeological sites. Federal and State agencies are required to protect archaeological sites that are discovered on their lands, but their resources and personnel are very limited. A new methodology is evaluated that uses modern light detection and ranging (LiDAR) and historic aerial photogrammetry to create digital terrain models (DTMs) capable of i… more
Date: August 2015
Creator: Helton, Erin King
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Analysis of the Habitat of the Greater One-Horned Rhinoceros Rhinoceros Unicornis (Mammalia: Perissodactyla: Rhinocerotidae) at the Chitwan National Park, Nepal

Description: This article uses geographic information systems and landscape-level data obtained from remote sensing sources to build a habitat suitability index model for the Greater One-horned Rhinoceros.
Date: September 26, 2014
Creator: Thapa, Vivek; Acevedo, Miguel F. & Limbu, Kul P.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
captions transcript

GIS and Civic Imagination

Description: Recording of a presentation session at the 2015 Digital Frontiers Annual Conference. In this session, presenters discuss the creation of a geographic information system dedicated to the history of Houston, and how such a system can function as a way to make archival documents accessible.
Date: September 2015
Duration: 19 minutes 26 seconds
Creator: Sewell, Jeanette & Riedel, Brian
Item Type: Refine your search to only Video
Partner: UNT Libraries
open access

The Bobwhite Population Decline: Its History, Genetic Consequences, and Studies on Techniques for Locating and Assessing Current Populations

Description: The northern bobwhite (Colinus virginianus) population decline is a severe, rangewide phenomenon beginning >150 years ago and continuing today. In this investigation, I: 1. document the timeline of bobwhite population decline and unintended genetic consequences of attempted remedies, 2) develop a model useful for predicting possible locations of potentially sustainable bobwhite populations in semiarid rangeland in Texas and Oklahoma, and 3) examine the relationship between population monitoring… more
Date: May 2019
Creator: Whitt, Jeffrey Glen
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Automated Tree Crown Discrimination Using Three-Dimensional Shape Signatures Derived from LiDAR Point Clouds

Description: Discrimination of different tree crowns based on their 3D shapes is essential for a wide range of forestry applications, and, due to its complexity, is a significant challenge. This study presents a modified 3D shape descriptor for the perception of different tree crown shapes in discrete-return LiDAR point clouds. The proposed methodology comprises of five main components, including definition of a local coordinate system, learning salient points, generation of simulated LiDAR point clouds wit… more
Date: May 2018
Creator: Sadeghinaeenifard, Fariba
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Factors Affecting Police Officers' Acceptance of GIS Technologies: A study of the Turkish National Police

Description: The situations and problems that police officers face are more complex in today’s society, due in part to the increase of technology and growing complexity of globalization. Accordingly, to solve these problems and deal with the complexities, law enforcement organizations develop and apply new techniques and methods such as geographic information systems (GIS). However, the successful implementation of a new technology does not just depend on providing perfect technical support, but effective a… more
Date: August 2011
Creator: Cakar, Bekir
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Modeling Place Vulnerability of HIV/AIDS in Texas

Description: This study provides a measurable model of the concept of place vulnerability for HIV/AIDS that incorporates both community and structural level effects using data provided at the ZIP code level from the Texas Department of State Health Services. Sociological literature on the effects of place on health has been growing but falls short of providing an operational definition of the effects of place on health. This dissertation looks to the literature in medical/health geography to supplement so… more
Date: August 2011
Creator: Harold, Adam F.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Gentrification in Oklahoma City: Examining Urban Revitalization in Middle America

Description: Gentrification applies not only to the largest and oldest cities; it is a multi-scalar phenomenon playing out in smaller and less prominent settings as well. This study examines temporal changes in property values, demographic characteristics, and types of businesses in the central Oklahoma City area. A major urban revitalization project which began in 1993 created strong gentrification characteristics near the renewal's epicenter, the Bricktown entertainment district. Data suggest that seve… more
Date: August 2011
Creator: Petty, Clint C.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Parcel-Based Change Detection Using Multi-Temporal LiDAR Data in the City of Surrey, British Columbia, Canada

Description: Change detection is amongst the most effective critical examination methods used in remote sensing technology. In this research, new methods are proposed for building and vegetation change detection using only LiDAR data without using any other remotely sensed data. Two LiDAR datasets from 2009 and 2013 will be used in this research. These datasets are provided by the City of Surrey. A Parcel map which shows parcels in the study area will be also used in this research because the objective of t… more
Date: December 2016
Creator: Yigit, Aykut
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

GPS CaPPture: a System for GPS Trajectory Collection, Processing, and Destination Prediction

Description: In the United States, smartphone ownership surpassed 69.5 million in February 2011 with a large portion of those users (20%) downloading applications (apps) that enhance the usability of a device by adding additional functionality. a large percentage of apps are written specifically to utilize the geographical position of a mobile device. One of the prime factors in developing location prediction models is the use of historical data to train such a model. with larger sets of training data, pred… more
Date: May 2012
Creator: Griffin, Terry W.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Geography of HIV Infection Among Adults Aged 50 Years and Older in Texas From 1999-2009

Description: Twenty four percent of all HIV infections in the United States occur among adults aged 50 and older (mature adults), yet little is understood of the dynamics of HIV infection among this group in Texas. Data from 1999 to 2009 examined the relationship between HIV spatial and temporal patterns affecting socio-economic and demographic variables including poverty, gender, race/ethnicity and mode of exposure. Results revealed highest HIV infection rates among White homosexual men, Black males engag… more
Date: August 2012
Creator: Hedrich, Mara Nicole
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Storm Water Runoff Investigation Using Gis and Remote Sensing

Description: Environmental controls are becoming more and more expensive to implement, so environmental management is becoming more technologically advanced and efficient through the adoption of new techniques and models. This paper reviews the potential for storm water runoff for the city of Denton, Texas and with the main objective to perform storm water runoff analyses for three different land use datasets; each landuse dataset created with a different methodology. Also analyzed was the difference betwee… more
Date: August 2012
Creator: Jennings, Laura
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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