Table of Contents

Exploring Geographic Information Systems

Second Edition

by Nicholas R. Chrisman


Preface

Call for participation in an exploration

  • Organization of the Book

  • Part 1: Building Blocks of Geographic Information

    Introduction

  • Beginning the Exploration
  • Behind a Black Door
  • Further Explorations: La Selva Project
  • Convergence of Many Technologies
  • Defining a Geographic Information System

  • Chapter 1: Measurement Basics

     

  • How Information Works
  • Basic Components of Geographic Information
  • Reference Systems
  • Levels of Measurement
  • Nominal
  • Ordinal
  • Interval
  • Ratio
  • Extensive and derived scales
  • What is missing from Stevens
  • Applying Measurement Levels to Attribute Refeence Systems

  • Chapter 2: Measurement Frameworks

     

  • A Simple Measurement Framework
  • Control and Measurement
  • Attribute as Control: Isolated Objects to Connected Coverages
  • Isolated Object Framework
  • Spatial object framework
  • Isoline framework
  • Connected coverage frameworks and Topological relationships
  • Network framework
  • Categorical coverage framework
  • Spatial Control
  • Point-based frameworks
  • Center point framework
  • Area-based measurement frameworks
  • Extreme value
  • Total
  • Predominant type
  • Presence/ absence and percent cover
  • Precedence of types
  • Relationship Control
  • Measurement by pair
  • Triangulated Irregular Networks (TIN)
  • Composite Frameworks
  • Scattered point samples
  • Associating Attributes - Indirect Measurement
  • Choropleth maps (collection zones)
  • Temporal Frameworks

  • Chapter 3: Representation

     

  • Primitives for Representation
  • Primitives for Attributes
  • Primitives for Time
  • Primitives for Space: Coordinates
  • Representation Models and Data Structures
  • Vector model
  • Representing isolated objects
  • Topological data model
  • Raster model
  • Database Architecture
  • Conversion of Existing Documents (Digitizing)
  • Geocoding
  • Vector tracing
  • Raster scanners
  • Transforming Digitizer Measurements into Coordinates
  • Registration on device
  • Transformations from document to projection
  • Reference to geodetic surveys
  • After digitizing
  • Data Quality: closing the loop
  • Scale of sources
  • Verification and Quality Control

  • Part 2: Transformations and Operations

     

    Chapter 4: Attribute-based Operations

     

  • Manipulating Attributes
  • Reducing the information content
  • Increasing the information content
  • Combining Pairs of input values
  • Interaction of Attribute and Spatial Components
  • Spatial consequences of Aggregation and Isolation
  • Cartographic Generalization

  • Chapter 5: Overlay Integrates Disparate Sources

     

  • Development of Map Overlay
  • The Overlay Operation
  • Registration: a Universal Requirement
  • Raster Implementations of Overlay
  • Vector Implementations of Overlay
  • Geometric component
  • Attribute handling using results of overlay
  • Comparisons of Performance and Capabilities
  • Combining Attributes After Overlay
  • Enumeration Rules
  • Detecting differences
  • Interpreting differences
  • Dominance Rules
  • Exclusionary screening
  • Exclusionary ranking
  • Highest bid/ Higest bidder
  • Contributory Rules
  • Voting tabulation
  • Weighted voting
  • Linear Combination
  • Weighting and rating
  • Non-linear combinations
  • Interaction rules
  • Contingent weighting
  • Evaluating interactions
  • Rules of combination
  • Summary of rules

  • Chapter 6: Distance Transformations

     

  • Examples of distance specifications
  • Exclusionary zones around features: Buffers and setbacks
  • Beyond buffers and setbacks
  • Distance measurement
  • Distance relationships
  • Constructing buffers with vector data
  • Measuring distance in a raster
  • Comparison
  • Extended Voronoi Diagrams
  • Data Quality Aspects of Distance Relationships

  • Chapter 7: Surfaces and Near Neighbors

     

  • Surfaces
  • Topology of surfaces
  • Computing relationships on a surface
  • Slope from triangles
  • Slope from matrices
  • Neighborhood Operations: The Spatial Component
  • Neighborhood construction
  • Raster neighbors
  • Vector neighbors
  • Edge effects
  • Refinements of neighborhoods
  • Combining Neighborhood Attributes
  • Nominal attributes
  • Dominance rules
  • Contributory rules
  • Interaction rules
  • Operations based on ranking attributes
  • Continuous attributes
  • Aspatial treatment of continuous attributes in a neighborhood
  • Continuous attributes with horizontal measures
  • Data Quality Applications of Neighborhood Operations

  • Chapter 8: Comprehensive Operations

     

  • Iterative Operations
  • Viewshed
  • Cost Accumulation
  • An example of cost surface construction: A water pipeline
  • Drainage operations
  • Network operations
  • Location-Allocation Problems: A Family of Problems with a Common Approach
  • Statistical Modeling of Spatial Data

  • Chapter 9: Transformations

     

  • Prior Approaches to Transformations
  • Transformations for Surfaces
  • Interpolation
  • Interpolation from scattered points
  • Interpolation from isolines
  • Interpolation from a DEM
  • To and From Triangles
  • Network Information and Surfaces
  • A Scheme for Transformations
  • Transformation by Extraction (Case 0)
  • Transformations based on Attribute Assumptions (Case 1A)
  • Transformations based on Geometric Processing Only (Case 1N)
  • Complete transformations (Case 2)
  • Examples of Transformations
  • Case 1A: Classification of remotely sensed imagery
  • Forest Mapping for the United States
  • Case 1N: Geometric Measures Converted to Attributes
  • Wetland Regulation and Wasteland Assessment in Westport, Wisconsin
  • Case 2: Areal interpolation
  • Dasymetric Mapping of Population Density, Cape Cod

  • Part 3: The Broader Arena

     

    Chapter 10: Evaluation and Implementation

     

  • Technical Evaluation
  • Data Quality Assessment
  • Allocation of Resources
  • Computer Resources
  • Financial Resources
  • Human Resources
  • Implementing a GIS
  • Needs assessment
  • Requirements analysis
  • Construction
  • Serving Larger Goals

  • Chapter 11: Social and Institutional Context

     

  • Historical Trends in Technological Change
  • Geography of Geographic Information
  • Geographic Information in the Bureaucracy
  • Information in its Social Context
  • Equity
  • Access to Information
  • Balancing competing concerns
  • Information and Culture
  • Culture: Continuity and Change
  • The Practice of GIS

  • Bibliography

    Sources and Credits

    Index

    Version of 19 September 2001