Georeferencing

Review






4 Types of data in GIS: spatial, attribute, temporal, and metadata.
Last week we covered attribute data
Today, we will cover spatial data—specifically georeferencing, map projections and coordinate systems, and geocoding.
Next topic Geographic Representation &
Vector Data Model

Lecture 03: Georeferencing

GIS6100
Downs

1. Spatial Information

1. Spatial Information
3 main categories
 References
 Properties
 Relationships

1. Spatial Information
a. References—define where things, events, and activities are located

1. Spatial Information
a. References—examples
Coordinate systems

1. Spatial Information
a. References—examples
Place names

Monument Square

1. Spatial Information
a. References—examples
Addresses

1. Spatial Information
a. References—examples
Linear locators

1. Spatial Information
b. Properties—‘spatial attributes’

1. Spatial Information
b. Properties
Length

1. Spatial Information
b. Properties
Area

1. Spatial Information
b. Properties
Shape

1. Spatial Information
b. Properties
Center

Calculate these next week

1. Spatial Information
c. Relationships—define associations between entities

1. Spatial Information
c. Relationships—examples
Connectivity

1. Spatial Information
c. Relationships—examples
Adjacency
B
A

1. Spatial Information
c. Relationships—examples
Co-location (overlap, intersect, etc)

(cover properties and relationships in detail later in course)

2. Georeferencing Systems

2. Georeferencing Systems
a. Define how locations of things, events, and activities are recorded

2. Georeferencing Systems
b. Properties

2. Georeferencing Systems
b. Properties
i. Unique, at least within some domain

Newcastle, Indiana, USA

Newcastle, England, UK

2. Georeferencing Systems
b. Properties ii. Persistent through time

2. Georeferencing Systems
b. Properties iii. Have an associated