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- Ice_nucleus abstract "An ice nucleus is a particle which acts as the nucleus for the formation of an ice crystal in the atmosphere.There are a number of mechanisms of ice nucleation in the atmosphere (see below) through which ice nuclei can catalyse the formation of ice particles. In the upper troposphere, water vapor can deposit directly onto solid particle. In clouds warmer than about −37 °C where liquid water can persist in a supercooled state, ice nuclei can trigger droplets to freeze. Contact nucleation can occur if an ice nucleus collides with a supercooled droplet, but the more important mechanism of freezing is when an ice nucleus becomes immersed in a supercooled water droplet and then triggers freezing. In the absence of an ice nucleating particle, pure water droplets can persist in a supercooled state to temperatures approaching −37 °C where they freeze homogeneously.Ice particles can have a significant effect on cloud dynamics. They are known to be important in the processes by which clouds can become electrified, which causes lightning. They are also known to be able to form the seeds for rain droplets.Many different types of particulates in the atmosphere can act as ice nuclei, both natural and anthropogenic, including those composed of desert dust, soot, organic matter, bacteria (e.g. Pseudomonas syringae), pollen, fungal spores and volcanic ash amongst others. However, the exact nucleation potential of each type varies greatly, depending on the exact atmospheric conditions. Very little is known about the spatial distribution of these particles, their overall importance for global climate through ice cloud formation, and whether human activity has played a major role in changing these effects.".
- Ice_nucleus thumbnail Ice_Nucleation_Mechanisms.png?width=300.
- Ice_nucleus wikiPageID "33662690".
- Ice_nucleus wikiPageLength "4245".
- Ice_nucleus wikiPageOutDegree "19".
- Ice_nucleus wikiPageRevisionID "702794181".
- Ice_nucleus wikiPageWikiLink Atmosphere_of_Earth.
- Ice_nucleus wikiPageWikiLink Bergeron_process.
- Ice_nucleus wikiPageWikiLink Category:Clouds.
- Ice_nucleus wikiPageWikiLink Category:Particulates.
- Ice_nucleus wikiPageWikiLink Cloud.
- Ice_nucleus wikiPageWikiLink Cloud_condensation_nuclei.
- Ice_nucleus wikiPageWikiLink Cloud_seeding.
- Ice_nucleus wikiPageWikiLink Ice_crystals.
- Ice_nucleus wikiPageWikiLink Lightning.
- Ice_nucleus wikiPageWikiLink Nucleation.
- Ice_nucleus wikiPageWikiLink Particulates.
- Ice_nucleus wikiPageWikiLink Snow.
- Ice_nucleus wikiPageWikiLink Supercooling.
- Ice_nucleus wikiPageWikiLink File:Ice_Nucleation_Mechanisms.png.
- Ice_nucleus wikiPageWikiLinkText "Ice nucleus".
- Ice_nucleus wikiPageWikiLinkText "ice nucleators".
- Ice_nucleus wikiPageWikiLinkText "ice nuclei".
- Ice_nucleus wikiPageWikiLinkText "ice nucleus".
- Ice_nucleus wikiPageWikiLinkText "nucleation of ice crystals".
- Ice_nucleus wikiPageUsesTemplate Template:Climate-stub.
- Ice_nucleus wikiPageUsesTemplate Template:Meteorological_variables.
- Ice_nucleus wikiPageUsesTemplate Template:Reflist.
- Ice_nucleus subject Category:Clouds.
- Ice_nucleus subject Category:Particulates.
- Ice_nucleus hypernym Particle.
- Ice_nucleus type Scientist.
- Ice_nucleus type Particulate.
- Ice_nucleus type Science.
- Ice_nucleus comment "An ice nucleus is a particle which acts as the nucleus for the formation of an ice crystal in the atmosphere.There are a number of mechanisms of ice nucleation in the atmosphere (see below) through which ice nuclei can catalyse the formation of ice particles. In the upper troposphere, water vapor can deposit directly onto solid particle. In clouds warmer than about −37 °C where liquid water can persist in a supercooled state, ice nuclei can trigger droplets to freeze.".
- Ice_nucleus label "Ice nucleus".
- Ice_nucleus sameAs Q3136993.
- Ice_nucleus sameAs Noyau_glacigène.
- Ice_nucleus sameAs Inti_es.
- Ice_nucleus sameAs 氷晶核.
- Ice_nucleus sameAs Jądro_kondensacji.
- Ice_nucleus sameAs m.01gphr.
- Ice_nucleus sameAs Iskärna_(isbildning).
- Ice_nucleus sameAs Q3136993.
- Ice_nucleus wasDerivedFrom Ice_nucleus?oldid=702794181.
- Ice_nucleus depiction Ice_Nucleation_Mechanisms.png.
- Ice_nucleus isPrimaryTopicOf Ice_nucleus.