Concepts of Remote Sensing Remote sensing, also called earth observation, refers in a general sense to the instrumentation, techniques and methods used to observe, or sense, the surface of the earth, usually by the formation of an image in a position, stationary or mobile, at a certain distance remote from that surface (after Buiten & Clevers, 1993). In remote sensing electromagnetic radiation coming from an object, in case of earth observation this object is the earth’s surface, is being measured and translated into information about the object or into processes related to the object.
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