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Latest Cloud condensation nuclei Stories

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2010-06-08 09:24:27

A lot of large particles of dust and pollen in the atmosphere may make your nose twitch, but they can lead directly to greater precipitation in clouds, Colorado State University atmospheric scientists have discovered for the first time. The amount of ice crystals necessary to form precipitation in clouds is linked to the abundance of larger aerosol particles in the atmosphere, according to a study by Paul DeMott and Anthony Prenni, research scientists in the Atmospheric Science department at...

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2010-04-22 11:39:40

Native Americans used smoke signals to indicate danger, and a white plume is sent up by the Vatican when a new Pope is chosen. Now, a new research project by Tel Aviv University researchers and their colleagues shows that where there's "smoke" there may be significant consequences for local weather patterns, rainfall and thunderstorms. In a new study, Prof. Colin Price, head of Tel Aviv University's Department of Geophysics and Planetary Science, researched data on lightning patterns in the...

2008-09-30 03:00:23

By Phillips, Vaughan T J DeMott, Paul J; Andronache, Constantin ABSTRACT A novel, flexible framework is proposed for parameterizing the heterogeneous nucleation of ice within clouds. It has empirically derived dependencies on the chemistry and surface area of multiple species of ice nucleus (IN) aerosols. Effects from variability in mean size, spectral width, and mass loading of aerosols are represented via their influences on surface area. The parameterization is intended for application...

299523704e642faacdc34fcd3888e3321
2008-09-09 10:50:00

An international team of scientists, headed by Prof. Daniel Rosenfeld of the Institute of Earth Sciences at the Hebrew University of Jerusalem, has come up with a surprising finding to the disputed issue of whether air pollution increases or decreases rainfall. The conclusion: both can be true, depending on local environmental conditions. The determination of this issue is one with significant consequences in an era of climate change and specifically in areas suffering from manmade pollution...

2008-07-30 03:00:29

By Ayash, Tarek Gong, Sunling; Jia, Charles Q ABSTRACT Sea salt aerosols play a dual role in affecting the atmospheric radiative balance. Directly, sea salt particles scatter the incoming solar radiation and absorb the outgoing terrestrial radiation. By acting as cloud condensation nuclei, sea salt aerosols indirectly modulate the atmospheric radiative budget through their effective contribution to cloud formation. Using the Canadian Aerosol Module (CAM)-Canadian Centre for Climate...

2008-06-17 15:00:24

Los Angeles to resume controversial cloud-seeding project LOS ANGELES, June 16 (Xinhua) -- Facing severe water supply shortage, Los Angeles plans to launch a controversial cloud- seeding project that they believe will boost rainfall and raise the levels of local reservoirs, a newspaper report said Monday. The project, which will rely on injecting clouds with silver iodide particles, has won approval from Los Angeles county supervisors and is slated to begin this winter. Officials...


Latest Cloud condensation nuclei Reference Libraries

Weather Reference Library
2012-07-17 22:18:38

Evaluating one way of how clouds can form. To understand this method it’s important to understand a few terms. The first one is Cloud Condensation Nuclei. The CCN can consist of anything from dust, dirt, salt anything that is floating in the air. The second thing is moisture. There must be moisture present in the atmosphere to condense on the CCN to form a droplet. Next step to the process is what is known as collision and coalescence. This is the process of many CCN’s running...

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Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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