Geography Commons^™

Intelligent Visualization And Automated Processing For Large Scale Geographic Information Systems, Yu Jiang

All-Inclusive List of Electronic Theses and Dissertations

This research focuses on developing a new output system that compacts maps in multiple projections into a single Geographic Information System (GIS) without visual errors, through constructing a discrete GIS database that is managed by a Relational Data Base Management System (RDBMS). Unlike in a traditional large GIS database, the data are "physically discrete but logically continuous." In a new discrete GIS database, every map keeps its individuality without a relationship to any other map, and the relationships among the maps are centrally managed by a RDBMS. A study site was chosen at the boundary of the state of Indiana …

A Spatial And Temporal Analysis Of Riparian Vegetation Along Satus Creek On The Yakama Indian Reservation, Kathryn Gellenbeck

All Master's Theses

Satus Creek provides critical habitat for the Yakima River Basin steelhead. A diverse community of riparian vegetation is important for healthy fish habitat; vegetation changes can affect shade, cover, channel structure, water quality, and food availability. The purpose of this thesis is to analyze and illustrate riparian vegetation change, both temporally and spatially, along three separate reaches of Satus Creek. A Geographic Information Systems approach was applied to assess the vegetation change by comparing plant species composition and density on 1949 and 1995 aerial photographs. The GIS approach allowed patterns and trends in the vegetation to be identified. In less …

Visualizing Uncertainty Of The Great Plains Boundary, Sonja Lynn Rossum

Department of Geography: Dissertations, Theses, and Student Research

Geographic regions all have some degree of uncertainty, though this is seldom represented on their maps. The Great Plains is an excellent example of how even a well known and widely accepted region can be a source of cartographic confusion. This region is fuzzy in nature, with few landforms or sharp changes in characteristics to help locate the boundary line. Also, the act ofregionalization itself is a highly subjective process, using defining criteria and methods of mapping selected by the cartographer.

The uncertainty of the Great Plains boundary location is shown by comparing many such interpretations from individual cartographers, all …

Mojave Desert - Land Ownership And Administration, Robert J. Johnson, R. Douglas Ramsey, Alan Falconer

Wildland Resources Faculty Publications

Produced for the Mojave Desert Ecosystem Program under the United States Department of Defense Legacy Program in cooperation with the Department of the Interior.

Cartography and image processing by:

Remote Sensing and Geographic Information Systems Laboratory

Department of Geography and Earth Resources

College of Natural Resources

Utah State University

Logan, Utah 84322–5240

Cartographic preparation and printing by U.S. Geological Survey, 1998.

Land ownership compiled from 1:100,000-scale Bureau of Land Management Surface Management Status maps.

Populated places produced from USGS Geographic Names Information System.

Roads and water bodies produced from USGS 1:100,000-scale Digital Line Graph data.

Project boundary based on the …

Mojave Desert - Shaded Relief, Robert J. Johnson, R. Douglas Ramsey, Alan Falconer

Wildland Resources Faculty Publications

Produced for the Mojave Desert Ecosystem Program

under the United States Department of Defense Legacy Program in cooperation with the Department of the Interior.

Cartography and image processing by:

Remote Sensing and Geographic Information Systems Laboratory

Department of Geography and Earth Resources

College of Natural Resources

Utah State University

Logan, Utah 84322–5240

Cartographic preparation and printing by U.S. Geological Survey, 1998.

Shaded Relief derived from U.S> Geological Survey (USGS) National Elevation Database.

Solar elevation 25°, azimuth 315°, exaggeration 5x, ambient light 0.5

Land ownership compiled from 1:100,000-scale Bureau of Land Management Surface Management Status maps.

Populated places produced from USGS …

Mojave Desert - Satellite Image Map, Robert J. Johnson, R. Douglas Ramsey, Alan Falconer

Wildland Resources Faculty Publications

Produced for the Mojave Desert Ecosystem Program under the United States Department of Defense Legacy Program in cooperation with the Department of the Interior.

Cartography and image processing by:

Remote Sensing and Geographic Information Systems Laboratory

Department of Geography and Earth Resources

College of Natural Resources

Utah State University

Logan, Utah 84322–5240

Cartographic preparation and printing by U.S. Geological Survey, 1998.

Image map produced from 15 Landsat Thematic Mapper images recorded from 1991–1993, provided by U.S.

Geological Survey (USGS), as part of the Multi–Resolution Land Characteristics Consortium Activities.

Bands 7, 4, 2. Simulated natural color composite.

Land ownership compiled from …

An Evaluation Of Ambulance Service Performance Using A Geographic Information System, Jeremy Peters

Theses and Dissertations (Comprehensive)

The accessibility, distribution and utilization of emergency health care services have a great impact on the effectiveness, efficiency and equity of health service delivery. The impact of these factors is heightened by the fact that ambulance resources, which are an important component of emergency health care, are often insufficient, resulting in performances below those required to respond reliably to emergency calls from demand areas. Measures of realized geographic accessibility of ambulances to call locations are of considerable importance in planning the deployment of this service as they allow planners to account for response time variations, often caused when ambulances are …

Modelling Spatial Processes: The Identification And Analysis Of Spatial Relationships In Regression Residuals By Means Of Moran's I (Germany), Michael Tiefelsdorf

Theses and Dissertations (Comprehensive)

This thesis deals with the implementation, identification and analysis of relationships between geo-referenced objects. Significant spatial relationships manifest themselves in a spatial process which is modelled on a combination of spatial structure and spatial autocorrelation levels. Simple spatial structures reflect plain spill-over effects between adjacent spatial objects, whereas theoretical guided spatial structure mirror functional exchange relationships within the system of spatial objects. In empirical work, the underlying spatial process is unknown. The linking mechanism between a hypothetical spatial structure and a stochastic input must be identified from the observed data. This is accomplished here by means of the test statistic …

Issues In Representing Ethnic Residential Segregation, Wanda Teresa Gayle Smith

Theses and Dissertations (Comprehensive)

This study will look at some of the issues involved in representing ethnic residential segregation. Segregation studies rely heavily upon indices and maps. However, both of these are sensitive to the spatial boundaries used. As well, maps have a visual element which affects the nature and degree of representation. Toronto has been chosen as the area of study because of its high degree of ethnic diversity. Five indices that describe the five dimensions of segregation (Massey and Denton, 1988) will be calculated at four standard levels of aggregation. As well, several types of maps will be produced to illustrate the …

Geographic Information Systems In High School Geography Education: A Feasibility Study, C. Sonia Wardley

Masters Theses

This research focused on three aspects of the integration of GIS into the high school curriculum. Firstly, the investigation strove to demonstrate how GIS could enrich the high school geography curriculum in Michigan. Secondly, GIS software programs were evaluated for suitability using three techniques, and thirdly, the study area high schools were assessed for their technological capabilities relative to GIS.

The pedagogical and cognitive benefits of using GIS as a tool were established _ from the pertinent literature and the feasibility of incorporating GIS into the curriculum was examined with the reference to the Michigan geography content standards and benchmarks. …

Stratigraphy And Deposystem Analysis Of Middle Pennsylvanian Strata (Breathitt Group/ Pottsville And Allegheny Formations) In The Vicinity Of Greenup, Kentucky And Ironton, Ohio, Terry Hamrick

Theses, Dissertations and Capstones

Twelve facies are described from 40 measured sections the Breathitt Group from Greenup, Kentucky and Ironton, Ohio. The project area is approximately 260 square mi 1 c-s covering strata from the Mississippian age Borden formation to Middle Pennsylvanian age Allegheny formation. Facies include: 1) conglomeratic channel lags, 2) small scale, cross stratified channel sandstones, 3) large scale, cross stratified, channel sandstones, 4) small scale, tabular sandstones, 5) small epsilon cross bedded sandstones, 6) large scale, dark gray, channel form shale deposits, 7) fossiliferous silty shales, 8) bioturbated shales, 9) heterolithic channel fills, 10) biomicrites, 11) black platy shales, and 12) …

Assessing The Cost Of Best Management Practices In Arkansas, Richard A. Kluender, Robert C. Weih Jr., M. Corrigan, J. Pickett

Journal of the Arkansas Academy of Science

A geographic information system (GIS) is a set of powerful, computer-based, analytical algorithms for solving spatial data problems. Recently, due to increases in memory size, computing speed, and programming advances, personal computers have been used in spatial analysis problems. This study reports the benefits of using a PC-based GIS system to solve a common, but complicated problem in forest management: assignment of harvesting areas with harvesting exclusion zones. Two stands each from the USDA Crossett Experimental Forest, the University of Arkansas Forest, and the Ouachita National Forest (total six) were analyzed to determine the changes due to following best management …

The Ohio Gis Network: Stage 2 1996 Investment Fund Grant First Year Progress Report To The Ohio Board Of Regents (Ohio Gis Network), Mark Salling

All Maxine Goodman Levin School of Urban Affairs Publications

The Ohio Geographic Information Systems Network (Ohio GIS-Net) is an innovative consortium of Ohio’s urban and rural universities. The consortium is building a center of excellence where state-of-the-art geographic information systems (GIS) technology is applied to a research agenda that is critical to Ohio's economic development and central to research issues in policy sciences, civil engineering, public administration, economics and the environmental, urban and regional sciences. This cutting edge technology is an essential component of the basic research infrastructure of universities. It is also a critical resource in state and local economic development efforts, building and maintaining public infrastructure, and …

The Ohio Gis Network: Stage 1 1993 Investment Fund Development Grant Progress Report To The Ohio Board Of Regents (Ohio Gis Network), Mark Salling

All Maxine Goodman Levin School of Urban Affairs Publications

The Ohio Geographic Information Systems Network (Ohio GIS-Net) is an innovative consortium of Ohio’s urban and rural universities. The consortium is building a center of excellence where state-of-the-art geographic information systems (GIS) technology is applied to a research agenda that is critical to Ohio's economic development and central to research issues in policy sciences, civil engineering, public administration, economics and the environmental, urban and regional sciences. This cutting edge technology is an essential component of the basic research infrastructure of universities. It is also a critical resource in state and local economic development efforts, building and maintaining public infrastructure, and …

Integrating Gis And Remote Sensing With Ecosystem Research, Suzanne Wiley, Robert C. Weih Jr.

Journal of the Arkansas Academy of Science

In the Phase II Ecosystem Management Research Program in the Ouachita and Ozark National Forests, an interdisciplinary group of scientists are evaluating the effects and trade-offs of partial cutting methods in a replicated stand level study. Information from approximately 2,000 plots is being collected by more than fifty researchers during this five-year project with plans to continue data collection long term. To evaluate the effects of different management strategies and their interactions with forest resources, data must be brought into a common format and made available to all researchers. To this end, a data support system was developed which utilizes …

Teaching Secondary School Geography With The Use Of A Geographical Information System (Gis), Angela Louise Crechiolo

Theses and Dissertations (Comprehensive)

Until quite recently, geographical information systems have been limited to the resources and students of post-secondary institutions. This situation is now changing in Ontario. In the early 1990's the Ministry of Education adopted mandates to develop curriculum guidelines for the integration of computers into all areas of the curriculum. Although the process is well underway in Ontario, limited access to hardware and software, insufficient pre-service and in-service training, and a paucity of teaching resources has lead to mounting teacher frustration. Although the literature base on teaching GIS at the pre-collegiate level is increasing, it lacks clearly defined examples of how …

Socio-Economic Factors And The Journey To Work: A Case Study Of At&T Gis Employees, Thomas A. Hammers

Theses and Dissertations (Comprehensive)

Individuals who must commute to work are often concerned with the spatial separation of their home and job site. In many of these cases the socio-economic characteristics of these individual's lives play an important part in deciding how long this commute is, in terms of both time and distance. The following study seeks to identify the relationships between several selected socio-economic characteristics and the journey to work distances for employees at AT&T GIS. The factors being examined in this study are age, education level, number of dependents, income, length of service to the company, occupation type and gender. Significant differences …

Regional Variation In Temperature Humidity Index For Poultry Housing, Richard S. Gates, Hanzhong Zhang, Donald G. Colliver, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

A building thermal model was used to compute hourly values of temperature humidity index (THI) for a broiler house with and without an evaporative misting system. Hourly summer time weather data for 238 U.S.A. locations covering 30 years were used to develop extreme occurrences of THI. Results were incorporated into a Geographical Information System (GIS) database to create isolines of THI and percentage of hours exceeding a heat stress threshold. Regional variations in misting as a suitable cooling technique are presented in terms of hours reduction in annual heat stress. The technique may be used for assisting in management decisions …

Maps As A Visual Language: A Chinese Perspective, Zhaoyuan Li

Theses and Dissertations (Comprehensive)

One primary goal of cartographic research is to improve cartographic communication. Psychophysical and cognitive research has assisted our understanding of the map use process. The present study is from a perspective of maps as a visual language. This study hypothesizes that (1) the map symbol system constitutes a visual ideographic language and (2) cartographic communication may be improved by applying the methods of teaching visual ideographic languages as a second language. Chinese script originated in primitive drawings of concrete things--pictographs--and ideographs. These became stylized and combined, and were expanded greatly in number. Although the characters came to include phonetic symbols, …

Classification System For The Natural Vegetation Of Arkansas, Thomas L. Foti, Martin Blaney, Xiaojun Li, Kimberly G. Smith

Journal of the Arkansas Academy of Science

We present a hierarchical classification system for existing natural vegetation of Arkansas based on the United Nations Educational, Scientific and Cultural Organization (UNESCO) system. It incorporates aspects of systems in use by the Nature Conservancy, Arkansas Natural Heritage Commission, Arkansas Game and Fish Commission, Society of American Foresters, and United States Forest Service, as well as data on potential vegetation from maps by E.E. Dale and A.W. Kuchler. A total of 18 physiognomic cover types are recognized for natural terrestrial cover, 6 for palustrine cover, and 4 each for lacustrine cover and riverine cover. Over 200 community types are recognized, …

A Test Of The Multiquadric Technique Of Interpolation With An Application To Fluid Speeds In A River (Ontario), James Patrick Dozois

Theses and Dissertations (Comprehensive)

Hardy's (1971) technique of interpolation was tested using fluid speed data from Big Otter Creek, a gravel bed stream, in South-Western Ontario. Fourteen cross-sections were selected from a 500 m-long reach of the river. Each cross-section was divided into 10 verticals. Fluid speed was sampled as different positions in these verticals starting at 0.025 m off the channel bed using an electromagnetic current metre. Bed roughness at each cross-section was determined by collecting samples of the bed material and by measuring the long, intermediate and short axes of particles at the 10 verticals. To test the multiquadric technique of interpolation, …

A Test Of The Multiquadric Method Of Interpolation Using Drumlin Data From The Lunenburg, Nova Scotia And Peterborough, Ontario, Fields, Catherine Treena Conrad

Theses and Dissertations (Comprehensive)

The multiquadric method of interpolation has been used to generate surfaces from irregularly distributed points of geophysical data, and has proven to be a successful means of mapping such data. There are four stages involved in the implementation of the method (Saunderson, 1994): (1) solution of a system of simultaneous, linear equations; (2) interpolation of new z values, for a number of locations within the x,y area of an initial sample space of points; (3) plots of all the z values at their respective locations, using colour graphics instead of contouring; and (4) plots of the partial derivatives of z …

Modelling Avian Distributions Of The Navarrese Region In Northern Spain With A Geographic Information System, Samuel Soret-Garcia

Loma Linda University Electronic Theses, Dissertations & Projects

GIS (Geographic information Systems) technology was used for identifying relations between environmental characteristics and the breeding distributions of nine avian species of the Navarrese region in northern Spain. Data overlays of multiple GIS layers derived the explanatory variables for modelling the breeding distributions from logistic regressions. A spatial autocorrelation analysis was conducted to characterize the distribution patterns and to incorporate spatial factors (neighborhood effects) into their analysis.

All nine patterns analyzed exhibited a high level of spatial autocorrelation. Accordingly, the basic hypothesis of spatial randomness was rejected in favor of spatial clustering for the sample data. The breeding distributions strongly …

Theoretical And Empirical Examinations Of Spatial Scale And Aggregation Effects On The Principal Axis Factoring Technique When The Observations Are Areal Units, Len Michael Hunt

Theses and Dissertations (Comprehensive)

Previous assessments of factor analytic invariance to scale and aggregation effects have led to discrepant results. To determine the true effects, this study comprehensively examines the influence of scale and aggregation on factorial ecologies. This investigation is completed for three data sets, four scales, and thirty aggregations at each scale. Of these three data sets, two are artificial. These two data sets differ only by levels of spatial autocorrelations as one data set contains independent areal unit observations while the other set includes modest positive spatial autocorrelations. The third data set consists of variables from the 1986 Saskatoon enumeration areas. …

Voronoi Diagrams As A Visualization Technique For Spatial Autocorrelation In Point Data Sets, Martin A. Cassel

Theses and Dissertations (Comprehensive)

This thesis explores a new way of visualizing spatial autocorrelation in a GIS environment. It explores some relationships between spatial autocorrelation models, spatial interaction models and weighted Voronoi diagrams. Since the weighted Voronoi diagram is equivalent to a form of spatial interaction models, any GIS with the ability to generate a gravity model can be utilized to perform this new technique of exploratory spatial data analysis. This thesis demonstrates how the cross product form of‘ spatial autocorrelation models like the Geary and the Moran statistics is equivalent to the form of a multiplicatively weighted distance utilized in the definition of …

Multiple Hazard Research In Kananaskis Country, Alberta: A Geographical Information System Approach, Alastair J. Small

Theses and Dissertations (Comprehensive)

This research is concerned with the application of Geographical Information System techniques to multiple hazard research in Kananaskis Country Recreation Area, southern Alberta. The study is focused on Peter Lougheed Provincial Park, a high mountain environment in the front range Rockies. Increasing human activity in the area is putting more and more people at risk from natural hazards, thus the need for more efficient land use planning is evident. This research attempts to map and predict avalanche, forest fire, rockslide/rockfall, and flood hazard occurrence, and estimate the degree of risk associated with each. Data relating to the physical characteristics and …

An Overview Of Geographic Information Systems, Rodney Jones

Mahurin Honors College Capstone Experience/Thesis Projects

No abstract provided.

Gis Address-Matching And Transportation Analysis, James D. Orrell

Dissertations and Theses

Geographic Information System (GIS) address-matching combined with other GIS processing offers new analytical opportunities in the area of transportation planning and analysis. Address-matching, an automated method for generating geographically-referenced (geocoded) point locations on a map from common tabular databases, can facilitate transportation analysis by providing a planning tool based on individual rather than aggregated spatial distributions more common to transportation issues.

This thesis presents a case study in which GIS address-matching was I applied to a transportation problem at Oregon Health Sciences University (OHSU) in Portland, Oregon. The transportation problem at OHSU is common to major employment centers in urban …

Identifying Directional Properties Of Spatial Point Patterns An Investigation Of Two Methods, Rolf Puchtinger

Theses and Dissertations (Comprehensive)

Analyses of spatial point patterns tend to focus on deviations from randomness by either clustering or regularity. One assumption of these analyses implies that the point generating process is equal in all directions. However, the association of the location of points with a process biased in one or more directions is widely neglected due to a lack of appropriate statistical procedures. This is surprising, since patterns generated by directional processes are important in Geography. The purpose of this thesis is to investigate the blunt-triangle method and the third moment method for their potential of identifying directionality in spatial point patterns. …

The Impact Of Teaching Cartographic Lexicon And Of Geographic Experience On Map Use, James Cuame Saku

Theses and Dissertations (Comprehensive)

Although maps are often thought to be easily understood, for many people they are not. Research into how best to make the map more useful to the user has taken different forms including applied psychology. While some researchers focus on the map maker, others are concentrating on the map user. In this study, attention is focused on the map user. Specifically, the study tries to look at how “years of geographic instruction” and teaching of “geographic lexicons” can enhance the performance of map use activities. Since maps are more associated with geographers, it is believed that they are in a …