Question

 

Describe principles of thermal remote sensing. Also discuss its application potential. Support your answer with the help of neat well labelled diagrams, wherever necessary.

21 Jul 2025
Answer :
Word Count : 448
Thermal remote sensing is based on the principle of detecting emitted thermal infrared radiation from the Earth's surface. Unlike visible light, which is reflected sunlight, thermal remote sensing measures the naturally emitted radiation from objects in the thermal infrared region, typically in the wavelength range of 8 to 14 micrometers. All objects above absolute zero (-273.15°C) emit electromagnetic radiation, and the intensity of this emission is proportional to the object’s temperature and emissivity, as ______ ________ _________ ___ ______ _____ ____ ____ ________ _______ ___ ______.
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