Definition
Remote sensing (RS) is the science of making inference from measurements made at distance without any physical contact with the objects understudy. It refers to identification of earth features by detecting electromagnetic (EM) radiation that is reflected and/or emitted by the surface at various wavelengths. It is based on the scientific rationale that every object reflects/scatters a portion of electromagnetic energy incident on it. The reflection depends on physical and chemical properties of the material. The object also emits radiation depending upon its temperature and emissivity.
Introduction
Visual perception of objects by the human eye is an example of remote sensing. However, it is confined to visible portion of EM spectrum. Modern remote sensors are capable of detection of electromagnetic radiation extending from gamma rays, x rays, and ultraviolet to infrared and microwave regions. While, in general, the medium of interaction for RS is through the electromagnetic...
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Navalgund, R., Singh, R.P. (2023). Remote Sensing. In: Daya Sagar, B.S., Cheng, Q., McKinley, J., Agterberg, F. (eds) Encyclopedia of Mathematical Geosciences. Encyclopedia of Earth Sciences Series. Springer, Cham. https://doi.org/10.1007/978-3-030-85040-1_275
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