Sentences with phrase «ultraviolet wavelengths dissociates»
Radiation at ultraviolet wavelengths dissociates atmospheric molecules, initiating chains of chemical reactions — specifically those producing stratospheric ozone — and providing the major source of heating for the middle atmosphere, while radiation at visible and near - infrared wavelengths mainly reaches and warms the lower atmosphere and the Earth's surface1.
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The pattern of temperature increase with height in the stratosphere is the result of solar heating as ultraviolet radiation in the wavelength range of 0.200 to 0.242 micrometre dissociates diatomic oxygen (O2).