Term: deposition velocity
https://doi.org/10.1351/goldbook.D01602

Definition:
The ratio of flux density (often given in units of g cm-2 s-1) of a substance at a sink surface to its concentration in the atmosphere (corresponding units of g cm-3). While the units of this ratio are clearly those of velocity (in this case cm s-1), the ratio is not a flow velocity in the normal sense of the word.

Source: PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2184 (https://doi.org/10.1351/pac199062112167)

Citation: 'deposition velocity' 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.D01602

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