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Latest Cloud condensation nuclei Stories

2014-02-28 13:48:09

Nature: Researchers discover source of climate-active organic aerosol particles According to their results, these extremely low-volatile organic compounds consist of relatively large molecules which contain an almost equal number of carbon, oxygen, and hydrogen atoms. The scientists present a plausible explanation supported by numerous experimental findings of how these vapours are formed almost immediately when plant emissions (e.g. monoterpenes) are released into the air. The vapours can...

Clouds Affected By Pollutants Could Enhance Climate Cooling
2013-05-06 05:35:43

redOrbit Staff & Wire Reports - Your Universe Online While manmade pollution and other natural emissions are often blamed for their role in global warming, new research from the University of Manchester suggests that they could actually play a role in cooling the world´s climate. According to the study, which has been published in the journal Nature Geoscience, those emissions could make clouds brighter. Clouds, the researchers explain, are comprised of water droplets that...

Cloud Droplet Formation Rate Not Affected By Pollution
2013-02-19 05:21:23

April Flowers for redOrbit.com - Your Universe Online A little bit of oily and viscous organic material doesn't seem to matter much when it comes to forming the droplets that make up clouds. This is good news for reducing the uncertainty of climate model predictions. For accurate climate modeling, understanding cloud formation is essential. This understanding has to start with droplet formation, which occurs when water vapor is attracted to particles floating in the atmosphere. These...

Certain Volatile Gases Found To Promote Cloud Formation
2013-02-05 09:20:34

April Flowers for redOrbit.com - Your Universe Online A new study from Columbia Engineering and the Georgia Institute of Technology shows — for the first time — certain volatile organic gases can promote cloud formation in ways atmospheric scientists have never before considered. The findings of this study were published online in the Early Edition of the Proceedings of the National Academy of Sciences (PNAS). "This is the first time gases have been shown to affect cloud...

OH Radicals Causes Aging Of Organic Aerosols
2012-10-05 10:17:23

Climate models need to be updated Atmospheric aerosol particles have a significant effect on climate. An international team of researchers has now discovered that a chemical process in the atmosphere called aging determines to a major extent the concentration and the characteristics of aerosol particles. To date, this aspect has not been accounted for in regional and global climate models. In the Muchachas [Multiple Chamber Aerosol Chemical Aging Experiments] project, the team has not...

Amazon Rainforest Clouds Created By Salt
2012-09-11 05:11:50

April Flowers for redOrbit.com - Your Universe Online Early morning, deep in the Amazon jungle, fog drifts through the still air. The sun rises and clouds appear to float across the forest canopy. Where do these clouds and mists come from? Water vapor needs soluble particles to condense on, and airborne particles are the seeds of liquid droplets in fog, mist and clouds. To learn how aerosol particles form in the Amazon, an international team of scientists analyzed samples of...

shutterstock_6299578
2012-08-23 20:57:10

Lee Rannals for redOrbit.com — Your Universe Online Scientists are turning what some could think of as "evil genius science", and using it for good, by developing a way to turn down the rage of a hurricane. A team of scientists claim they have a technique that could reduce hurricane intensity by a category. The authors wrote in the journal Atmospheric Science Letters that they could use cloud seeding as a technique to decrease sea surface temperatures, where hurricanes form....

2012-07-03 10:29:57

The influence of aerosols (small particles less than 1 micrometer in diameter) and clouds (liquid droplets 1 — 1000 micrometers diameter) represents one of the largest uncertainties in our understanding of trends in past global climate and predicting future climate change, as recognized by the 2007 report of the Intergovernmental Panel on Climate Change. One of the most significant 'known unknowns' is how quickly water can condense on the small aerosol particles to grow and become...

Image 1 - Cloud Droplets From Insoluble Dust Particles Can Affect Climate
2011-10-14 04:04:00

New information on the role of insoluble dust particles in forming cloud droplets could improve the accuracy of regional climate models, especially in areas of the world that have significant amounts of mineral aerosols in the atmosphere. A more accurate accounting for the role of these particles could also have implications for global climate models. Cloud properties can have a significant impact on climate, yet the effects of aerosols like dust is one of the more uncertain components of...

science-082511-006
2011-08-25 11:37:37

  Our understanding of how clouds form may need to be revised, according to new research published in the journal Nature. The study has found that one or more unidentified organic gases have a significant influence on the Earth's cloud cover. The research has implications for certain predictions about climate change because aerosol particles and the clouds they seed have a cooling effect on the Earth by reflecting radiation from the sun. Jasper Kirkby, head of the Cosmics...


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
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.