1. Instructor: Dr. Chunling Liu chunling98@gmail.com
INTRO to GIS
Instructor: Dr. Chunling Liu

3. Lecture 1
GIS and ArcGIS

4. What is GIS Geographic Information Systems Computer tools Database:
Spatial data---addresses
Georeferenced--- x, y coordinates

5. GIS Components Hardware platform: mainframe, PC
Software: ArcGIS, IDRISI
Data Storage: CD, USB
Input hardware: digitizers, scanners
Output hardware: printer, plotter
Data: sources and formats; most expensive
Personnel: trained and knowledgeable

6. GIS Basic Functions Data import and export Data management
Thematic mapping
Data analysis
Map layout/presentation

7. Transportation planning
What Can GIS Do
Land use planning
Business marketing
Crime analysis
Utility management
Transportation planning ……

8. What Do GIS Professionals Do
Data providers
GIS applications
GIS development
Distributed GIS database

9. Father of GIS: Roger Tomlinson ESRI: leader in GIS industry
History of GIS
Origin: Cartography
Father of GIS: Roger Tomlinson
ESRI: leader in GIS industry

10. Father of GIS: Roger Tomlinson

11. GIS Data Model Vector vs. Raster Vector– Shape: point, line, polygon
Vector- Example: lakes, rivers, roads, pipelines
Raster– Surface: grid (cell)
Raster- Example: elevation, rainfall, slope

12. Map: Layers

13. Feature: Geographic Object
Point: city
Line: river, road
Polygon: lake, country

14. Feature: Location Point: pair of x, y coordinates
Line: at least two pairs, beginning and end
Polygon: a line returning to starting point

15. Feature: Size/Scale
Ratio: relationship between the size of features on a map and the size of corresponding places in the world
Large scale vs. small scale:
1:25, 000 vs. 1:100, 000,000

16. Feature: Linked to Info

17. Feature: Thematic map Use attributes to create thematic maps
Symbology applied to features to indicate attributes
Example:
Population Density
Energy consumption per capita

18. Feature: Spatial Relationship
1. Which cities are within 50 kilometers of a river?
2. Which countries have a river that crosses their border?
3. which countries share a border with China?
4. Which countries contain a lake completely within their borders?

19. Countries Sharing Border with China

20. ArcGIS Products ArcGIS for Desktop: ArcMap, ArcCatalog
ArcGIS for Server
ArcGIS for Mobile

21. ArcGIS License
Basic
Standard
Advance

22. ArcCatalog
Data format
Shape: .shp
Layer: .lyr
Geodatabase: .gdb