condensation nuclei


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condensation nuclei

neutral particles, such as dust, in the atmosphere that are able to absorb or adsorb water and grow. At relatively high humidities they form fogs or hazes. Condensation nuclei consisting of sulfuric or nitric acid vapors or nitrogen oxides may be a source of respiratory irritants.
References in periodicals archive ?
The cooling benefits of reducing emissions, her team found, were partially offset by the fact that less soot meant fewer cloud condensation nuclei and thus fewer clouds to cool things down.
A modeling study of the response of tropical deep convection to the increase of cloud condensation nuclei concentration: 1.
Objective: Atmospheric aerosol particles have been shown to impact the earth~s climate because they scatter and absorb solar radiation (direct effect) and because they can modify the microphysical properties of clouds by acting as cloud condensation nuclei or ice nuclei (indirect effects).
They are important because they strongly affect Earth's energy balance in two ways: they scatter and absorb sunlight and infrared emission from Earth's surface, and act as condensation nuclei for the formation of cloud droplets.
We were amazed by the speed and efficiency with which the electrons [generated by cosmic rays] do their work of creating the building blocks for the cloud condensation nuclei," says Svensmark.
Working with Gregory Roberts at the Scripps Institution of Oceanography, Nenes developed a new type of cloud condensation nuclei (CCN) counter.
began investigating this problem in 1976, when one of his meteorological balloons passed through an unusual layer of tiny particles and droplets called condensation nuclei, 75,000 feet above Earth's surface.
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.
Aerosols serve as the cloud condensation nuclei around which droplets form.
Climatologists need to understand how global warming might affect the number of condensation nuclei in these clouds, Radke says.
Earlier this year, in the April 16 NATURE, Lovelock, Charlson and their colleagues proposed that once DMS reaches the atmosphere, it oxidizes to form sulfate particles, which then serve as condensation nuclei for developing cloud particles.
Clarke suggests that the particles entrained in the rising methane plume would act as condensation nuclei for water vapor in the air and would cause ice crystals to form, just as condensation trails are left behind airplanes.