GEOG 201

1. Discuss the following terms as applied to remote sensing

a. Electromagnetic Spectrum (EMS)

The electromagnetic spectrum is the complete range of all possible frequencies and wavelengths

of electromagnetic radiation. It extends from very short-wavelength, high-frequency gamma rays

to very long-wavelength, low-frequency radio waves. In remote sensing, the EMS is fundamental

because different features on the Earth's surface interact with specific wavelengths in different ...