cloud condensation nuclei

云凝结核

Atmospheric Sciences (English-Chinese) dictionary. 2014.

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  • Cloud condensation nuclei — Aerosol pollution over Northern India and Bangladesh NASA Cloud condensation nuclei or CCNs (also known as cloud seeds) are small particles typically 0.2 µm, or 1/100 th the size of a cloud droplet [1]) about which cloud droplets coalesce. Water… …   Wikipedia

  • Cloud condensation nuclei —   Aerosol particles that provide a platform for the condensation of water vapor, resulting in clouds with higher droplet concentrations and increased albedo.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

  • Cloud reflectivity modification — Cloud reflectivity enhancement is also known as marine cloud brightening or cloud whitening on low cloud. An opposite scheme exists to reduce the reflectivity of higher, colder cirrus clouds.[1] It is a geoengineering technique that works by… …   Wikipedia

  • Cloud physics — Atmospheric sciences Aerology …   Wikipedia

  • Cloud — For other uses, see Cloud (disambiguation). Cumulus cloudscape over Swifts Creek, Australia A cloud …   Wikipedia

  • cloud — cloudlike, adj. /klowd/, n. 1. a visible collection of particles of water or ice suspended in the air, usually at an elevation above the earth s surface. 2. any similar mass, esp. of smoke or dust. 3. a dim or obscure area in something otherwise… …   Universalium

  • Cloud chamber — with visible tracks from ionizing radiation (short, thick: α particles; long, thin: β particles). See also Animated Version Video of a Cloud chamber in action The cloud chamber, a …   Wikipedia

  • Cloud seeding — can be done by ground generators, plane, or rocket (not shown). Cloud seeding, a form of intentional weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing substances into the air… …   Wikipedia

  • condensation nucleus — Meteorol. nucleus (def. 5). [1910 15] * * * ▪ meteorology       tiny suspended particle, either solid or liquid, upon which water vapour condensation begins in the atmosphere. Its diameter may range from a few microns to a few tenths of a micron… …   Universalium

  • cloud seeding — any technique of adding material to a cloud to alter its natural development, usually to increase or obtain precipitation. [1945 50] * * * ▪ atmospheric science       deliberate introduction into clouds of various substances that act as… …   Universalium

  • cloud seeding —   attempt to create or grow clouds by the introduction of condensation nuclei in order to cause greater precipitation …   Geography glossary

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