5.6. Electromagnetic Spectrum (EMS)

Try these first

1. 1.

   What is the electromagnetic spectrum?

   Hint

   It includes waves like radio, microwaves, and gamma rays.

2. 2.

   Name one application of visible light in remote sensing.

   Hint

   Think about what we can see with our eyes.

3. 3.

   What part of the EMS is primarily used for optical remote sensing?

   • Infrared
   • Visible Light
   • Microwaves
   • Gamma Rays

   Hint

   This part of the spectrum you can see.

4. 4.

   True or False: Microwaves cannot penetrate cloud cover.

   • True
   • False

   Hint

   Consider how weather imaging might work.

5. 5.

   Explain how the interaction between EMR and Earth's surface can differ among different wavelengths in the EMS.

   Hint

   Consider how vegetation reacts to different wavelengths in remote sensing.

6. 6.

   Discuss how knowledge of the EMS is applied in the design of sensors for remote sensing.

   Hint

   What relationship do sensors have with the wavelengths they detect?