What is GIS? GIS is an integrated system used to view and manage information about geographic places, analyze spatial relationships, and model spatial processes.

GE110 Fall 2010Week 1_Thursday2

All About GIS... GIS allows you to discover patterns and relationships you cannot easily see in a table GIS stores two types of information: Features – Objects found on Earth ( mountains, rivers, and lakes) Attributes – Description of Features GE110 Fall 2010Week 1_Thursday3

Raster Aerial Photos Satellite Images DEM A GIS map contains layers - a collection of graphic objects that are alike Layers may contain features or surfaces Features have shape and size location can be displayed at different sizes linked to information spatial relationships Surfaces have a geographic expanse numeric values 4 Vector Points Lines Polygons GE110 Fall 2010Week 1_Thursday

Data Sources Hardcopy Maps Coordinates GE110 Fall 2010Week 1_Thursday5 Digital Data GPS

GIS Functions Capture Store Query Analyze Display Output GE110 Fall 2010Week 1_Thursday6

Query Select by Attributes GE110 Fall 2010Week 1_Thursday7 Identify Select by Location

Analysis Extract Overlay Proximity Statistics GE110 Fall 2010Week 1_Thursday8

Display GE110 Fall 2010Week 1_Thursday9 Graphs Reports Maps

Output Animation (*.avi, *.mov) GE110 Fall 2010Week 1_Thursday10 *.emf - Enhanced Metafile *.eps - Encapsulated PostScript *.ai – Adobe Illustrator *.pdf – Portable Document Format *.svg – Scalable Vector Graphics *.bmp – Bitmap *.jpg – Joint Photographic Experts Group *.png – Portable Network Graphics *.tif – Tagged Image File Format *.gif - Graphics Interchange Format Export Web (*.kml, *.kmz)

GIS Software Tools Available in GIS Lab GE110 Fall 2010Week 1_Thursday11

GIS Hardware GE110 Fall 2010Week 1_Thursday12