Electromagnetic Absorption By Water
The absorption of electromagnetic radiation by water in the gas phase occurs in three regions of the spectrum. Rotational transitions are responsible for absorption in the microwave and far-infrared, vibrational transitions in the mid-infrared and near-infrared. Vibrational bands have rotational fine structure. Electronic transitions occur in the vacuum ultraviolet regions. Liquid water has no rotational spectrum but does absorb in the microwave region. Ice has a similar spectrum to liquid water.
Read more about Electromagnetic Absorption By Water: Overview, Rotational Spectrum, Vibrational Spectrum, Electronic Spectrum, Microwaves and Radio Waves, Atmospheric Effects
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