The researchers estimate that aircraft have increased the concentration of natural condensation nuclei
over Laramie by about 10 percent.
They are able to influence the formation of clouds in the atmosphere by acting as condensation nuclei
to which gaseous water vapor attaches, whereby cloud droplets are produced.
O., 2009: Correlation between cloud condensation nuclei
concentration and aerosol optical thickness in remote and polluted regions.
Airborne particles can be captured as condensation nuclei
as dew condenses, whereas gases or liquid particles might dissolve into the dewdrops .
Washington, March 26 (ANI): In a new research, scientists have determined that as soot particles in the atmosphere age, airborne sulfuric acid may help turn them into condensation nuclei
, which enable the formation of clouds.
Climatologists need to understand how global warming might affect the number of condensation nuclei
in these clouds, Radke says.
In nature, mineral dust particles, among other things, form condensation nuclei
for the ice particles.
Shipborne measurements of total particle concentrations are widespread, but measurements of cloud condensation nuclei
(CCN), particle composition, and BC (see sidebar "Developments in aerosol microphysical measurements") are concentrated over the Atlantic and Arctic.
Aerosol particles include sea salt, dust, air pollutants and biomass-burning smoke particles, and nearly all can act as cloud condensation nuclei
(also known as cloud seeds).
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.
Cloud condensation nuclei
or CCNs are typically 0.2 AaAaAeAe[micro]m, or 1/100 the size of a normal cloud droplet.
Condensation of water vapour is exacerbated in polluted environment with increasing ANC due to increase in condensation nuclei
often of very small size due to anthropogenic origin.