What Does Remote Sensing Mean?

Remote sensing is the process of acquiring information about an object or phenomenon without making actual physical contact with it, as opposed to onsite observation or onsite sensing. This often requires the use of aerial sensor technologies such as those used in reconnaissance airplanes and satellites in order to detect and analyze objects on the Earth, usually on the surface.

Techopedia Explains Remote Sensing

Remote sensing is the use of satellites, planes and other aerial technologies using advanced sensor technologies able to detect energy reflected from the Earth’s surface. This makes it possible to collect data in inaccessible or dangerous areas where it would be too hazardous to bring in a team and equipment to collect data. Since the sensors are high above the Earth, they are very useful for gathering data in a very wide area. Applications of remote sensing include monitoring the extent of deforestation or the spread of an oil spill, as well as monitoring the movement of and changes in polar ice caps and icebergs. The same principle is applied to depth sounding of oceanic and coastal depths from a ship.