Remote Sensing

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to on site observation. Remote sensing is a sub-field of geography. In modern usage, the term generally refers to the use of aerial sensor technologies to detect and classify objects on Earth (both on the surface, and in the atmosphere and oceans) by means of propagated signals (e.g. electromagnetic radiation). It may be split into active remote sensing (when a signal is first emitted from aircraft or satellites) or passive (e.g. sunlight) when information is merely recorded. We are now engaging in interpretation of satellite imagery to identify tonal differences, which can give us relevant information of the earth’s surface. Forestry and agricultural bodies need this information to identify areas of diseased vegetation and crops and can also map shallow seabed for up to 40 meters deep. Satellite images can be obtained from the United States Government Agencies based in Bangkok, Thailand. This type of service is only appointed by National Governments, as the cost is very high.