Dobson spectrophotometer

Dobson spectrophotometer

[′däb·sən ‚spek·trō·fə′täm·əd·ər]
(spectroscopy)
A photoelectric spectrophotometer used in the determination of the ozone content of the atmosphere; compares the solar energy at two wavelengths in the absorption band of ozone by permitting the radiation of each to fall alternately upon a photocell.
References in periodicals archive ?
This November marks the 50th anniversary of the start of total ozone column measurements by the NOAA Dobson spectrophotometer instrument at South Pole station.
Examples of specific topics covered include aircraft electrification, airmass, anabatic wind, boundary layer, convection, Dansgaard-Oeschger event, Dobson spectrophotometer, gradient wind, katabatic wind, meteorology, noble gases, pollution control, temperature scales, waterspout, and Venturi effect.
Researchers there took measurements with the Dobson spectrophotometer, a reliable and easy-to-operate tool still in use.
In some parts of the planet TOC changeability monitoring is carried out by means of land devices, the most absolute of which is Dobson spectrophotometer, with measuring error 7.