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Geographic Information Sciences

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Working Towards A Cartographic Lexicon: The Role Of Units, Structure, Content, And Expression In Geographic Information, Michael Charles Fabbri Jan 2000

Working Towards A Cartographic Lexicon: The Role Of Units, Structure, Content, And Expression In Geographic Information, Michael Charles Fabbri

Theses and Dissertations (Comprehensive)

This thesis was conceived from an interdisciplinary perspective towards the advancement of cartographic research and geographic education. The primary focus is to understand the cognitive process of cartographic communication as an approach both to improvements in design and to teaching and learning of the cartographic language. Specifically, it attempts to understand more about how the map functions. It accepts that the map is a functional graphic display, whose main purpose is to represent, communicate, and store geographical information, which allows a focus on what that geographical information is conceptually. The essential goal of map use is geographic comprehension, and if …


Shoreline Bluff Failures: A Gis Assessment Of Susceptibility And Risk For Lake Erie's North Central Shore (Ontario), Nathan Joel Badger Jan 2000

Shoreline Bluff Failures: A Gis Assessment Of Susceptibility And Risk For Lake Erie's North Central Shore (Ontario), Nathan Joel Badger

Theses and Dissertations (Comprehensive)

One of the characteristic features of the north shore of Lake Erie is its steep, eroding bluffs. Combined with an increase in human presence and pressures at the shoreline, the failure of these slopes has become hazardous. Over the past two decades alone, slope failures have been responsible for millions of dollars of damage to shoreline property, as well as the deaths and near deaths of a number of individuals. Despite the seriousness of this hazard, few studies have identified specific hazard areas and their associated risk of failure along Lake Erie's north shore, and other reaches in the Great …


Assessing The Role Of Geographical Information Systems (Gis) In The Classroom, Christopher D. Storie Jan 2000

Assessing The Role Of Geographical Information Systems (Gis) In The Classroom, Christopher D. Storie

Theses and Dissertations (Comprehensive)

Only within the past few years has the diffusion of geographical information systems (GIS) technologies made their way down the educational ladder. Until recently GIS was largely restricted to the confines of upper year university and college programs in Canada. Over time, the instruction of GIS has made its way towards first and second year post secondary students. Recently, GIS has been gaining popularity within the High School curriculum and continues to filter its way down the educational hierarchy. This thesis covers two major areas pertaining to GIS in education. The first area deals with the literature pertaining to GIS, …


A Spatial And Temporal Analysis Of Riparian Vegetation Along Satus Creek On The Yakama Indian Reservation, Kathryn Gellenbeck Jan 1999

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 …


Topological Equivalence And Similarity In Multi-Representation Geographic Databases, Joao Argemiro De Carvalho Paiva Dec 1998

Topological Equivalence And Similarity In Multi-Representation Geographic Databases, Joao Argemiro De Carvalho Paiva

Electronic Theses and Dissertations

Geographic databases contain collections of spatial data representing the variety of views for the real world at a specific time. Depending on the resolution or scale of the spatial data, spatial objects may have different spatial dimensions, and they may be represented by point, linear, or polygonal features, or combination of them. The diversity of data that are collected over the same area, often from different sources, imposes a question of how to integrate and to keep them consistent in order to provide correct answers for spatial queries. This thesis is concerned with the development of a tool to check …


Issues In Representing Ethnic Residential Segregation, Wanda Teresa Gayle Smith Jan 1998

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 …


Modelling Spatial Processes: The Identification And Analysis Of Spatial Relationships In Regression Residuals By Means Of Moran's I (Germany), Michael Tiefelsdorf Jan 1998

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 …


An Evaluation Of Ambulance Service Performance Using A Geographic Information System, Jeremy Peters Jan 1998

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 …


Geographic Information Systems In High School Geography Education: A Feasibility Study, C. Sonia Wardley Aug 1997

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 Jan 1997

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) …


Teaching Secondary School Geography With The Use Of A Geographical Information System (Gis), Angela Louise Crechiolo Jan 1997

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 …


Integrated Spatial Reasoning In Geographic Information Systems: Combining Topology And Direction, Jayant Sharma May 1996

Integrated Spatial Reasoning In Geographic Information Systems: Combining Topology And Direction, Jayant Sharma

Electronic Theses and Dissertations

As Geographic Information Systems (GISs) have gained wider acceptance and application, the interest in spatial modeling and reasoning has deepened. The purpose of a model and reasoning framework is to permit a user to experiment and study causal relationships in the real world by operating on the model only. Traditionally GISs employ purely quantitative methods to represent and infer spatial information. This approach has serious shortcomings when dealing with qualitative spatial information, which may be incomplete or imprecise and does not contain knowledge of the geometry of the spatial objects, which humans are particularly adept at utilizing in their daily …


Socio-Economic Factors And The Journey To Work: A Case Study Of At&T Gis Employees, Thomas A. Hammers Jan 1996

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 …


Maps As A Visual Language: A Chinese Perspective, Zhaoyuan Li Jan 1995

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, …


A Test Of The Multiquadric Method Of Interpolation Using Drumlin Data From The Lunenburg, Nova Scotia And Peterborough, Ontario, Fields, Catherine Treena Conrad Jan 1994

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 …


A Test Of The Multiquadric Technique Of Interpolation With An Application To Fluid Speeds In A River (Ontario), James Patrick Dozois Jan 1994

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, …


Modelling Avian Distributions Of The Navarrese Region In Northern Spain With A Geographic Information System, Samuel Soret-Garcia Jun 1993

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 …


Voronoi Diagrams As A Visualization Technique For Spatial Autocorrelation In Point Data Sets, Martin A. Cassel Jan 1993

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 …


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 Jan 1993

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. …


Multiple Hazard Research In Kananaskis Country, Alberta: A Geographical Information System Approach, Alastair J. Small Jan 1992

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 …


Gis Address-Matching And Transportation Analysis, James D. Orrell Jan 1990

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.


Identifying Directional Properties Of Spatial Point Patterns An Investigation Of Two Methods, Rolf Puchtinger Jan 1990

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 Jan 1990

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 …


Holocene Fluctuations Of The Coe Glacier, Mount Hood, Oregon, Karl Douglas Lillquist Jan 1988

Holocene Fluctuations Of The Coe Glacier, Mount Hood, Oregon, Karl Douglas Lillquist

Dissertations and Theses

Numerous moraines front the Coe Glacier on the north side of Mount Hood, Oregon. These moraines were identified and dated using a multiple methodology approach in order to establish a chronology for the advances and stillstands of the Cae Glacier. This chronology was compared to chronologies established for other glaciers on Mount Hood, North Sister, Mount Rainier and Mount Baker as well as glaciers in Scandinavia. The chronology was also compared to a long term temperature record from Longmire, Washington.

The maximum identified extent of the pre-Little Ice Age Coe Glacier was indicated by moraines located at an elevation of …


Modeling Cadastral Spatial Relationships Using An Object-Oriented Information Structure, Daniel Kjerne Jan 1987

Modeling Cadastral Spatial Relationships Using An Object-Oriented Information Structure, Daniel Kjerne

Dissertations and Theses

This thesis identifies a problem in the current practice for storage of locational data of entities in the cadastral layer of a land information system (LIS), and presents as a solution an information model that uses an object-oriented paradigm.


An Investigation Of Land Prices And Related Factors In Wellington County From 1961–71, Janet Eluned Morris Jan 1979

An Investigation Of Land Prices And Related Factors In Wellington County From 1961–71, Janet Eluned Morris

Theses and Dissertations (Comprehensive)

Factors affecting land prices in the open countryside of Wellington County from 1961–71 are investigated in this study. Land use was the major determinant of price and the significance of location, size and time varied according to land use. Soil had no effect on land prices. These factors were poor predictors of price which suggested that formation of land prices was a complicated process. The fragmentation of rural land into residential parcels from 1966–1969, combined with favourable economic conditions caused dramatic price increases for residential land and smaller increases in farm land and farm prices. The amount of rural land …


The Influence Of Educational Ability On Cognitive Mapping Ability: A Study Of School Children In Halifax, Nova Scotia, Gilbert Ronald Oikle Jan 1978

The Influence Of Educational Ability On Cognitive Mapping Ability: A Study Of School Children In Halifax, Nova Scotia, Gilbert Ronald Oikle

Theses and Dissertations (Comprehensive)

The purpose of this thesis is to find how a child’s cognitive abilities affect his cognitive map. Most of the earlier studies concentrated on socio-economic factors as the main factors affecting cognitive mapping, either ignoring cognitive ability or giving it minor consideration. This study surveyed a group of children ages 12 to 15 years in a Junior High School in Halifax, Nova Scotia.

The study revealed that cognitive ability significantly affected the forms of the cognitive maps of the students, but was not a significant factor in influencing the elements placed on the cognitive maps. Children of high achievement and …


Stochastic Models In Circuit Network Growth, John D. Radke Jan 1977

Stochastic Models In Circuit Network Growth, John D. Radke

Theses and Dissertations (Comprehensive)

To describe the spatial pattern of objects or events, and to explain that pattern by way of the causal mechanisms which have generated it, has been one of the traditional aims of geographical research (Harvey, 1967). One method that can be employed for such descriptions and explanations is network analysis.

A network is a meshed fabric of intersecting lines (Kansky, 1963). A more appropriate definition for geographers would be, a set of geographic elements interconnected into a system by a number of relationships (Kansky, 1963). Network analysis is an examination of a complete network, its elements and their relationships. Networks …


The Spatial Variation Of Voting Behaviour In Canada In 1963, Alex Yin-Cheung Mok Jan 1970

The Spatial Variation Of Voting Behaviour In Canada In 1963, Alex Yin-Cheung Mok

Theses and Dissertations (Comprehensive)

Previous studies in different countries have unfolded consequential relationships between a number of socio-economic factors and voting behavior. Ethnicity, religion, trade or profession were among the most useful voter characteristics in explaining party preference. While hypotheses of voting behavior for Canada are also prolific, most of them were based upon local studies. The present study of 53 selected incorporated cities in 1963 general election attempts to test such hypotheses at the national level. The majority of the proposed independent variables were derived from the previous case studies. The hypotheses were tested by means of a computerized multiple regression analysis.

The …


An Analysis Of The Spatial Distribution And Location Of Ski Resorts In Southern Ontario, John E. Lewis Jan 1967

An Analysis Of The Spatial Distribution And Location Of Ski Resorts In Southern Ontario, John E. Lewis

Theses and Dissertations (Comprehensive)

The number of skiers participating in the outdoor recreation activity of skiing has increased tremendously during the past twenty years. With increased amounts of leisure time, improved means of access and mobility, greater real incomes, new technology, and an increased desire to ski, the amount of skiing being done will continue to rise in the future.

The factors that have determined the development of existing ski resort facilities appear nebulous. Some of the ski resorts established in the past have resulted in economically successful operations while others have ended in a financial loss for the owners involved as well as …