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How a Display of "Rainbow Clouds" formed over Haikou City of China?

 Have you ever seen "Rainbow Clouds"?: Explaining the   Phenomenon of Cloud Iridescence 




Keywords: Rainbow clouds, Cloud Iridescent, Pileus cloud, Diffraction, China

What is Cloud Iridescence phenomenon?

  • Rainbow Clouds or what is scientifically known as Cloud Iridescence is a rare occurrence in nature which usually happens in altocumulus, cirrocumulus, lenticular and cirrus clouds. Diffraction- the chief event that takes responsibility occurs when small droplets or per se small ice crystals scatter the sun's light.                                 
  • The viral cloud video recently seen digs its origin in the Haikou city of China and only a decade back in India too in Bangalore,2013.                                                      
  • It also shows the representation of pileus clouds.

What are Pileus Clouds?

  1. Pileus Clouds place themselves over a cumulus or cumulonimbus cloud. Formed above them giving their unique properties.        
  2. They occur when  a moist current of air is pushed upwards by the base cloud, then the water vapour from the current gets condensed to depict a wave-like crests, or umbrellas.  
Key TakeAway: Did you know? -that in western culture, it is popularly referred as an "accessory cloud" i.e "rather like a cloud haircut". 

    3. It barely lasts for few minutes making it for the photographers difficult to capture in lens.

Pileus Clouds
Source: wikipedia


The Name Derivation: " Cloud" , "Iridescence".

In Greek Mythology, the word Iris represented the Goddess of Rainbow. So, "Iridescence" or "Irisation" involves a phenomena associated with rainbow like formation in relation to clouds.

Recent Occurrence : Cloud Iridescence

>The stunner phenomenon which occurred last month left the world in awe. a storm rose amongst the twitterati some drawing the resemblance to some "secret portal  into another world".

> Haikou city witnessed this rare phenomenon last month. 

Also, seen in Virginia

Image of Rainbow Cloud in skies over Hamilton, Virginia. 


Get the Twitter Reaction here> Twitter Reaction

>The news portal CBS News reported that "the colors of the spectrum are not as neat and organized in iridescence as in a rainbow,” adding that “cloud iridescence reminds me of pixie dust or unicorn sprinkles".

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