Yesterday around 1pm, i am going out to have my lunch with my friends. On the way to the nearest McD, we saw the rainbow is cover around the sun. This is such a beautiful scenario i had see. Today, i read star newspaper then only i know this natural scenario formed is called "HALO". This halo is formed by a rare weather phenomenon.
A Meteorological Department official said a halo would occur two to three times a year under certain atmospheric conditions. “They include the presence of cirrus clouds at very high altitudes, about five to 10km above sea level,” he said.
Halos are caused by ice crystals in cold cirrus clouds located in the upper troposphere. The particular shape and orientation of the crystals are responsible for the type of halo. Light is reflected and refracted by the ice crystals and may split up into colours because of dispersion, similar to a rainbow.
2 comments:
walao.... u like the expert la... so chim.......
i tot this is something else... when i saw the title...
but at least i had learn something today.. thanks.. nice photo
CS Kang, im not expert la.. just saw the halo and capture it. I refer to the star paper then i only know how it can formed.
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