e/Dobson spectrometer

Information
has gloss	eng: The Dobson spectrometer, also known as the Dobson Ozone Spectrometer or the Dobson ozone spectrophotometer, is an instrument used to measure the amount of ozone in the atmosphere. Ozone is tri-atomic oxygen, O3; ozone molecules absorb harmful UV light in the atmosphere before it reaches the surface of the earth. Little or no UVC radiation penetrates to the ground as it is absorbed in the ozone-oxygen cycle. Some longer-wave and less harmful UVB and most UVA, however, is not absorbed as ozone is less opaque to these frequencies, so they penetrate to the ground level of Earth in higher quantities.
lexicalization	eng: Dobson spectrometer
instance of	(noun) spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer mass spectrometer, spectrometer