Transcription of PRINCIPLES OF REMOTE SENSING - wamis.org
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PRINCIPLES OF REMOTE SENSING - wamis.org
PRINCIPLES OF REMOTE SENSINGS hefali AggarwalPhotogrammetry and REMOTE SENSING DivisionIndian Institute of REMOTE SENSING , Dehra DunAbstract : REMOTE SENSING is a technique to observe the earth surface or theatmosphere from out of space using satellites (space borne) or from the air usingaircrafts (airborne). REMOTE SENSING uses a part or several parts of theelectromagnetic spectrum. It records the electromagnetic energy reflected or emittedby the earth s surface. The amount of radiation from an object (called radiance) isinfluenced by both the properties of the object and the radiation hitting the object(irradiance).
28 Principles of Remote Sensing ELECTROMAGNETIC RADIATION AND THE ELECTROMAGNETIC SPECTRUM EMR is a dynamic form of energy that propagates as wave motion at a velocity of c = 3 x 1010 cm/sec.
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