Question

Electromagnetic interaction with matter and atmosphare

Answer 1

Energy can occur in different forms—for example, kinetic, potential, mechanical, chemical, electrical, and thermal energy. Ocean waves make themselves manifest by their way of propagation. The waves are because of a disturbance at the air–water interface. They are transverse that is the vibration of the particles is perpendicular to the direction of the propagation. A number of aspects connected with wave motion become visible when observing these waves, such as direction, wavelength, amplitude, velocity, and frequency. Electromagnetic radiation (EMR) is energy that propagates through vacuum (free space) or through material media in the form of an advancing interaction between electric and magnetic fields. It can make itself manifest by its interaction with matter. Light and thermal energy are examples of EMR. In addition to by radiation, thermal energy may travel by conduction and convection. In this chapter, the physical concepts of EMR and its interaction with the atmosphere and objects at the earth's surface are discussed. The interaction process is of great importance to the remote sensing specialist.