GIS Program Utah K12 Schools Geographic Information System

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GPS Basics
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The Global Positioning System (GPS) is a
worldwide radio-navigation system formed from a
constellation of 24 satellites and their ground
stations.
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Earth

• Circumference
• 24,000 Miles
• Rotation
• 1,000 Miles/Hour
• 1 Day Cycle

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GPS Satellites

• Distance from Earth
• ½x Earths Circumference
• 12,000 Miles
• 2 Orbits in 24 Hours
• Travel 7,000 Miles/Hour
• Powered by Solar Energy

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How GPS Works
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2D Trilateration
625 miles
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Signal Transmission
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Real World GPS Applications
Location - determining a basic positionNavigatio
n - getting from one location to another
Tracking - monitoring movement of people and
things Mapping - creating maps of the world
Timing - bringing precise timing to the world
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Student Map
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GPS Applications
Tree Plant Identification Science
Technology Bicycle Safety
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GPS Applications
High Adventure Fishing Canoeing Science
Technology
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GeoCaching

• Scavenger Hunt
• Zip Code
• Adventure
• Educational
• Recreation
• Families and Friends
• Exciting and Fun!

www.geocaching.com
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http//www.earthcache.org/
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Credits

• How Stuff Works http//electronics.howstuffworks.
  com/gps1.htm- 4H Navigation to Success by Brady
  Mitchell- All About GPS http//www.trimble.com
  /gps/- Tracks4Africa http//www.tracks4africa.
  co.za/- EARTHCACHE http//www.earthcache.org/
  

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Questions?
Comments
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3D Trilateration
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3D Trilateration
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GPS Applications
Wildlife Mapping Environmental Education Earth
Science
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What is GPS?