Dobson unit

in atmospheric chemistry
https://doi.org/10.1351/goldbook.D01827
Unit sometimes used in the description of the total ozone in a column of air overhead. It is given as the thickness (in units of 10−3 cm or 10−5 m) of that layer which would be formed by the total ozone in a column reduced to the pressure of 760 Torr and temperature of 0 ⚬C.
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2185 [Terms] [Paper]
Citation: 'Dobson unit' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.D01827 RIS BibTex EndNote
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Last revised: February 24, 2014