I. GPS - Global Positioning System

• What the system does
  
• How a GPS unit works
  • satellites
  • accuracy
  • latitude/longitude
    
• How to use a GPS unit
  • marking waypoints
  • finding waypoints
  • rate of travel
    

II. GIS - Geographic Information Systems

• What the system does - example:
  • layers - county boundaries, watershed boundaries
    • http://www.cnr.vt.edu/PLT/watersheds.html
  • layers - land uses
    • http://www.cnr.vt.edu/PLT/watersheds/newriver/generalized.html
  • layers - state and county boundaries, forest and non-forest
    • http://www.cnr.vt.edu/forsite/forestcommunity/countymap/
      
• How it is used - example:
  • http://www.cnr.vt.edu/PLT/potomacshenandoah/GISexplained.html

III. Integrating GPS and GIS

• Wildlife road kill locations mapped n satellite photos
  • http://www.cnr.vt.edu/dendro/sols/roadkill_satellite.htm
  • School mapping exercise

Questions:

1. GPS uses satellites to do what?
2. what does a GIS system use to display multiple properties that are being viewed together?
3. How many raccoons were found to be Midlothian roadkill in 2002?