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

Principles of Thermal Remote Sensing

Thermal remote sensing is a technique used to detect and measure the thermal radiation emitted by objects in the infrared portion of the electromagnetic spectrum. It operates on the principle that all objects with a temperature above absolute zero emit electromagnetic radiation, with the intensity and wavelength distribution of this radiation determined by the object's temperature and emissivity. The principles underlying thermal remote sensing include:

1. Thermal Radiation Emission: Objects emit thermal radiation in the form of electromagnetic waves due to their temperature. This emission follows Planck's law, which describes the intensity and spectral distribution of the emitted radiation based on the object's temperature.

2. Atmospheric Absorption and Emission: The Earth's atmosphere absorbs and emits thermal radiation in the infrared spectrum. Different atmospheric constituents, such as water vapor and carbon dioxide, absorb radiation at specific wavelengths. Understanding these absorption features is crucial for accurately interpreting thermal images acquired from space or airborne ________ ___ ________ ____ ___ __________ __________ ________ ______ ____ ________ ________.
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