Remote sensing Essay Example | Topics and Well Written Essays - 1500 words

Remote sensing - demonstrate Example239) have defined the remote sensing as a field of science or art that makes use of strength reflected from the Earth that is later processed, evaluated and applied in order to assist wiz in retrieving information regarding the surface of Earth without physically having to be on it. Sun is the fundamental generator of energy for all the creatures on earth. Sun rays falling on earth ar partly reflected which are captured by the satellites for generating information.The first condition without which, the process of remote sensing can not take place, is the readiness of electromagnetic energy as waves to a specific place or to a study area. Although in that respect are many electromagnetic energy sources, yet the sun is fundamentally the best source of energy.Basically, the energy travels from a source to a target through a medium or vacuum. When it comes to the earth, the energy interacts with the atmosphere, and this interaction gets repeate d when the energy is reflected from the study area to the sensor.After the electromagnetic waves have passed the atmosphere from some source, they interact with the study area. This interaction depends on the characteristics of the study area and also on the electromagnetic radiation direct to it.After the electromagnetic waves interact with the study area, part of them is absorbed and the rest is reflected back to the space. Recording and accumulation the reflected electromagnetic waves requires a special type of sensor which is familiar with the reflective waves.The last step of this feat is to understand, disclose and apply the information that has been retrieved from the study area. The problem can be solved by conducting its affinity with the real information.In 1864, the British physicist Clark Maxell predicted the existence of electromagnetic waves and supposed that the magnetic and electric fields counterfeit together to produce radiant energy. In addition to that, he d escribed the visible light to be composed of