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Author Question: Which of the following is NOT characteristic of polar ice-sheet climates? a. the lowest mean annual ... (Read 114 times)

penza

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on: Aug 7, 2018
Which of the following is NOT characteristic of polar ice-sheet climates?
 a. the lowest mean annual and lowest summer temperatures recorded anywhere on Earth
  b. bounded equatorward by the isotherm of 10C (50F) for the coldest month
  c. air has generally low absolute humidity
  d. receive enough insolation from the long summer days to allow considerable melting

Question 2

Explain the difference between active and passive remote sensing systems, giving an example of each.


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leeeep

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Reply #1 on: Aug 7, 2018
Answer to Question 1

B

Answer to Question 2

Passive systems make use of available energy where an image is taken. Active systems emit a form of energy and record its reflected return from a surface. Examples of passive systems include near-infrared and thermal infrared imaging. Examples of active systems include radar, lidar, and sonar.


penza

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Reply #2 on: Aug 7, 2018
Both answers were spot on, thank you once again


leeeep

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Reply #3 on: Aug 7, 2018
Great! Please up vote :D


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