Lecture 02 The Nature of Geographic Information Coverage

Lecture 02: The Nature of Geographic Information (Coverage Diagram) Topics 1. The Nature of Geographic Information 2. Definition of GIS Readings on the topics Chapter 4 in the text Chapter 1 in Bonham-Carter, 1994 Other readings Chapter 1 in the text (pp. 28 -31) Chapter 2 in Aronoff 1993 Geog. 377: Introduction to GIS - Lecture 02 Overheads 1

Lecture 02: The Nature of Geographic Information 1. 1 The four aspects of geographic information A. Typological attribute B. Location attribute C. Spatial topology (spatial dependence) D. Time Geog. 377: Introduction to GIS - Lecture 02 Overheads 2

1. 2 Important issues associated with G. I. A. Scale issue B. Selectiveness C. Spatial variation and spatial autocorrelation Geog. 377: Introduction to GIS - Lecture 02 Overheads 3

2. What is GIS? 2. 1 What is GISystem? 1) A narrow definition: 2) The three views of GIS Map view Database view Spatial analysis view Geog. 377: Introduction to GIS - Lecture 02 Overheads 4

3) Components Hardware Software Dataware Liveware 4) GIS and other information systems GIS and CAD Computer Cartography DBMS Remote Sensing Systems Geog. 377: Introduction to GIS - Lecture 02 Overheads 5

2. 2 What is GIScience? The study of science on developing the tools and techniques used in GISystem Difference between GISystem, GISscience, and GIStudies Geog. 377: Introduction to GIS - Lecture 02 Overheads 6

Questions 1. Explain the four different aspects of geographic information. 2. Discuss the important issues associated with geographic information 3. What is GIS? What are the four wares of GIS? 4. What are the differences among GISystems, GIScience and GIStudies 5. What are the different views of GIS? Geog. 377: Introduction to GIS - Lecture 02 Overheads 7