Antarctica: Where clouds are an oddity!
"Nacreous clouds form when the fading light at sunset passes through tiny ice crystals blown along by a strong jet of stratospheric air.
The clouds form only in polar latitudes and at extremely cold temperatures.
"Our weather balloon measured temperatures down to minus 87 degrees Celsius [minus 125 degrees Fahrenheit] in the vicinity of the cloud layer," said Baker on the Web site of the Australian Antarctic Division, a bureau of Australia's environmental department.
"That's about as cold as the lowest temperatures ever recorded on the surface of the Earth.
Amazingly, the winds at this height were blowing at nearly 230 kilometers [143 miles] per hour." "
The clouds form only in polar latitudes and at extremely cold temperatures.
"Our weather balloon measured temperatures down to minus 87 degrees Celsius [minus 125 degrees Fahrenheit] in the vicinity of the cloud layer," said Baker on the Web site of the Australian Antarctic Division, a bureau of Australia's environmental department.
"That's about as cold as the lowest temperatures ever recorded on the surface of the Earth.
Amazingly, the winds at this height were blowing at nearly 230 kilometers [143 miles] per hour." "
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