Intro to GIS & Mapping
ECON 212 - Fall 2017
Ryan Clement - go/ryan
What we're talking about today
- What is GIS? Is it just maps?
- Some important mapping concepts
- Tools
- OpenStreetMap
- Social Explorer
- ArcGIS Online
First, some expectations...
- Stop me if you have any questions!
- Help your neighbors, and ask for help!
- You can (and should) call me Ryan!
First...what is GIS?
- GIS stands for Geographic Information System
- GIS is a tool used to capture, store, manipulate, analyze, manage, and present geographic data
- The data used with GIS is spatial data (data that is referenced to points on the Earth)
- GIS is not a map!
Map Ingredients
(1) A reference system
(2) A datum
https://www.grossmont.edu/people/judd-curran/images/datum.jpg
(3) A projection
Projections can have accurate sizes or accurate shapes
Accurate Size
Accurate Shape
Or neither!
Robinson projection © Eric Gaba – Wikimedia Commons user: Sting
Dymaxion or Fuller map
Dymaxion or Fuller map
(4) A way to measure the Earth
What are some things you can do with GIS and spatial data?
Land Cover Analysis
Urban Planning
Analyzing Spatial Distributions
Analyzing Spatial Distributions
Combining Multiple Datasets
Geographically Weighted Regression
More about spatial data and regression: http://desktop.arcgis.com/en/arcmap/latest/tools/spatial-statistics-toolbox/regression-analysis-basics.htm
Calculating Distances/Areas
