1.2.5
Explore:
GPS and GIS Technology
Exploration
Environmental Science
Points Possible:
30
Name:
Wyatt Tetpon
Date:
In this activity, you will use scientific processes to explore, apply, and communicate
infor
...
1.2.5
Explore:
GPS and GIS Technology
Exploration
Environmental Science
Points Possible:
30
Name:
Wyatt Tetpon
Date:
In this activity, you will use scientific processes to explore, apply, and communicate
information related to the use of GPS and GIS technology in environmental science.
Use the information on GPS.gov, including the page "How GPS Works," to answer
question 1.
1. a. Explain what the GPS is, including the equipment it requires and the function it performs. (2
points)
The Global Positioning System (GPS) is a U.S.-owned utility that provides users with
positioning, navigation, and timing (PNT) services. This system consists of three segments: the
space segment, the control segment, and the user segment. The U.S. Air Force develops,
maintains, and operates the space and control segments.
b. Briefly summarize the history of the GPS. (2 points)
GPS has its origins in the Sputnik era when scientists were able to track the satellite with shifts in
its radio signal known as the "Doppler Effect." The United States Navy conducted satellite
navigation experiments in the mid 1960's to track US submarines carrying nuclear missiles.
c. Give at least two examples of how the GPS is used. (2 points)
GPS systems are extremely versatile and can be found in almost any industry sector. They map
forests, help farmers harvest their fields, and navigate airplanes on the ground or in the air.
Positioning systems are integral to military applications, and for emergency crews to locate
people in need of assistance.
Use the information in What Is Remote Sensing? and Remote Sensing to answer question 2.
2. What are remote-sensing satellites? (2 points)
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