accumulation mode

From Glossary of Meteorology

Aerosol particles in the size range 0.5–2 μm in diameter.
The name arises from the fact that particles in this size range are aerodynamically stable and do not settle out, nor do they agglomerate to form larger particles; thus they tend to accumulate in the atmosphere.
See also agglomeration.

Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact [email protected]. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.