2.4. Interaction of EMR with Earth Surface Features

Try these first

1. 1.

   What is reflection in the context of EMR?

   Hint

   Think about how a mirror works.

2. 2.

   Define absorption.

   Hint

   Consider how a sponge absorbs water.

3. 3.

   What happens to EMR during reflection?

   • It is absorbed
   • It bounces back
   • It is transmitted

   Hint

   Consider how light behaves when it hits a wall.

4. 4.

   Absorption occurs when EMR is:

   • True
   • False

   Hint

   Think about how colors absorb different wavelengths.

5. 5.

   Evaluate how the absorption characteristics of vegetation can influence the data collected from remote sensing observations. Provide specific examples.

   Hint

   Think about how green leaves appear and how they reflect light.

6. 6.

   Design a remote sensing strategy for assessing water quality in a lake. Discuss how you would utilize reflection, absorption, and transmission properties.

   Hint

   Consider how water appears clear under low turbidity conditions compared to polluted scenarios.