Difference between revisions of "Environmental factors"
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<b>GPS satellites and the environment</b> | <b>GPS satellites and the environment</b> | ||
GPS satellites in themselves do not directly affect the environment in a negative manner. However, they do deplete the earth's natural resources on launch. They use | GPS satellites in themselves do not directly affect the environment in a negative or positive manner. However, they do deplete the earth's natural resources on launch. They use up massive amounts of fuel at that time. Once in space, they are however powered by solar energy for sending the signals. They must still have fuel on board for movement for their remaining useful life. A GPS Satellite has a lifetime of 5 - 10 years. There are currently 60 GPS satellites in orbit. Replacements are continously being built and sent into orbit. | ||
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<b>Disposal of GPS satellites</b> | |||
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1. [http://www.slate.com/id/2117519/ Where satellites go when they die]<br> | 1. [http://www.slate.com/id/2117519/ Where satellites go when they die]<br> | ||
2. [http://www.aero.org/news/newsitems/procedures-030702.html Disposal procedures]<br> | 2. [http://www.aero.org/news/newsitems/procedures-030702.html Disposal procedures]<br> | ||
3.[ http://www.soi.city.ac.uk/~dk708/pg3_3.htm Effect on environment]<br> | |||
Revision as of 18:17, 19 March 2006
Research questions Environmental factors
Egon:
1. Will LBS have positive impact on the environment, due to less searching time and better location based information. (less use of energy / fuel??)
Reza:
1. How far is the air in major business areas over crowded with the same frequency?
Amarantha:
1. Do satellites affect/change the earth's atmosphere in any way?
2. How are satellites disposed of at the end of their useful life? How long is that life?
Werner:
1. To what extend can the phenomenon of electrical pollution limit the expansion of the use and application of LBS ? ([1])
Research Answers Environmental Factors
GPS satellites and the environment GPS satellites in themselves do not directly affect the environment in a negative or positive manner. However, they do deplete the earth's natural resources on launch. They use up massive amounts of fuel at that time. Once in space, they are however powered by solar energy for sending the signals. They must still have fuel on board for movement for their remaining useful life. A GPS Satellite has a lifetime of 5 - 10 years. There are currently 60 GPS satellites in orbit. Replacements are continously being built and sent into orbit.
Disposal of GPS satellites
References
1. Where satellites go when they die
2. Disposal procedures
3.[ http://www.soi.city.ac.uk/~dk708/pg3_3.htm Effect on environment]