Spectroradiometry for Earth and planetary remote sensing

Spectroradiometry is a technique in Earth and planetary remote sensing, which makes use of light behaviour, specifically how light energy is reflected, emitted, and scattered by substances, to explore their properties in the electromagnetic (light) spectrum and identify or differentiate between them. The interaction between light radiation and the surface of a given material determines the manner in which the radiation reflects back to a detector, i.e., a spectroradiometer.

Source: Wikipedia — Spectroradiometry for Earth and planetary remote sensing (CC BY-SA 4.0)