1.1Definition
What is Remote Sensing?

If you are reading this sentence, now you are doing Remote Sensing. In fact, any information acquired from the object without touching is Remote Sensing. Following is a scientific definition of Remote Sensing. The science of acquiring information about the earth using instruments which are remote to the earth's surface, usually from aircraft or satellites. Instruments may use visible light, infrared or radar to obtain data. Remote sensing offers the ability to observe and collect data for large areas relatively quickly, and is an important source of data for GIS