condensation nuclei

(redirected from Cloud condensation nuclei)
Also found in: Acronyms, Wikipedia.

condensation nuclei

Small particles in the air on which water vapors condense or sublimate. Smoke and dust particles act as condensation nuclei.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Fast, 2016: A three-dimensional sectional representation of aerosol mixing state for simulating optical properties and cloud condensation nuclei. J.
17 Science that there were more cloud condensation nuclei, along with other measures of aerosols, above regions with a lot of human activity compared with more pristine areas.
Solar influence can manifest itself in different ways: fluctuations of solar irradiance (total energy), which has been measured in satellites and related to the sunspot cycle; variability of the ultraviolet portion of the solar spectrum, which, in turn, affects the amount of ozone in the stratosphere; and variations in the solar wind that modulate the intensity of cosmic rays, which, upon impact into the Earth's atmosphere, produce cloud condensation nuclei, affecting cloudiness and, thus, climate.
The earlier study examines the cumulative effect of dust acting as cloud nucleating aerosol CCN, giant cloud condensation nuclei (GCCN), and ice nuclei (IN) along with anthropogenic aerosol pollution acting primarily as CCN, over the entire Colorado Rocky Mountains from the months of October to April in the year 2004-2005, the snow year.
Working with Gregory Roberts at the Scripps Institution of Oceanography, Nenes developed a new type of cloud condensation nuclei (CCN) counter.
If the aerosol has both characteristics of cloud condensation nuclei and IN, water vapor molecules first attach to the aerosol and form liquid water droplets, which then freeze into ice crystals, that is, the heterogeneous condensation-freezing nucleation process.
Only aged BC particles can act as cloud condensation nuclei and be removed by in-cloud scavenging.