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 : 522
Thermal remote sensing is a vital technique within the broader field of remote sensing that involves the detection and measurement of thermal infrared radiation (TIR) emitted by objects on the Earth’s surface. Unlike optical remote sensing, which relies on reflected sunlight, thermal remote sensing measures the natural emitted energy, allowing observations during both day and night and under varying light conditions. The primary principle of thermal remote sensing is based on Planck’s Law, which states that all objects with a temperature above absolute zero emit electromagnetic radiation in proportion to their temperature. The amount and wavelength of radiation emitted vary with the temperature and ___ _________ _______ _________ _____ _____ ______ ____.
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