Reading: Schuurman ch 4 & 5

love_saves_life

Maurizio Cattelan  Love Saves Life  1995

Schuurman: GIS: A Short Introduction

Ch. 4: Bringing it All Together: GIS Analysis

GIS is often used to store data; analysis greatly extends the functionality of  GIS by allowing us to learn more about the stored data

Cadastral systems: property and attribute information (Delaware DALIS project)

  • storing data vs analysis (how many residential properties within 1000’ of river)

Examples of analysis:

  • measurement & distance calculation (perimeters, areas, line lengths)
  • point in polygon queries: does a point lie in an area?
  • shape analysis: shape of a line to assess difficulty of driving on a road
  • edginess analysis: deer habitat (prefer ediginess, forest grass boundary)
  • slope calculation

Overlay Analysis, Set Theory, Map Algebra

  • query: a question (show all owl locations > 500’ from road)
  • buffer: an area around a pt, line, area (show residences within 500’ of liquor lic. Appl.)
  • overlay analysis (find all soils of a particular type within a floodzone)
  • difficulty of polygon overlay: extensive calculation
  • set theory & map algebra: mathematical basis of GIS analysis

Spatial Analysis in the Field: Environmental Modeling

  • ex) modeling industrial pollution
  • predict the impact of a new industrial development in a particular location; help
  • in decision-making
  • air emission, noise, risk
  • link environmental modeling to spatial data

Building Intuitive Models: Multi-Criteria Evaluation

  • location decision analysis
  • find the best location for a new industrial development, given multiple criteria (away
  • from people because of pollution; near necessary transportation corridors, labor).
  • ex) locating a dump
  • factors and criteria: p. 110
  • resulting map: worse and better locations: p. 111

The Power of the Eye: Visualization and the New Cartography

  • ex) TB example

From Data to Analysis: A Case Study of Population Health

  • ex) population health: relating housing to health
  • ecological fallacy: aggregation or scaling introduces bias (p. 120)

MCE and Analysis

  • example of health vs density of population

Calculation and the Rationalities of GIS

  • critical perspectives

Ch. 5: GIS Training and Research

  • GIS is slow
  • Evolving research in GISci
  • Not ontology again!
  • Feminism and GIS
  • Systems vs Science

Some Resources:


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One Response to Reading: Schuurman ch 4 & 5

  1. [...] Today: Sprinkler Heads: cover Schuurman ch. 4 & 5 (Krygier notes on these chapters here) [...]

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