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Rare Nacreous clouds otherwise known as polar stratospheric clouds are being spotted across the island.
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February 2, 2016 - EARTH - The following constitutes several of the latest reports of stunning cloud and light formation in the skies across the globe, as magnetic polar migration increases.
Nacreous rainbow cloud spotted in the skies over Ireland
The stunning clouds were pictured by people in a number of places, including Dublin and Belfast
A number of people noticed amazing rainbow coloured clouds in the sky over Ireland this morning.
The stunning clouds were pictured by people in a number of places, including Dublin and Belfast.
More images from Twitter:
They are known as polar stratospheric clouds or nacreous clouds and
usually appear during winter at high latitudes like Scandinavia,
Iceland, Alaska and Northern Canada.
The clouds are quite rare in Ireland and are mostly visible within two hours after sunset or before dawn.
They appeared as Storm Henry continues to batter the country. -
Irish Mirror.
Rose-coloured sky in northern Canada amazes Iqaluit residents
Light scattering likely cause of deep red colouration, says CBC meteorologist
Residents of Iqaluit, Nunavut woke up on Tuesday morning seeing red — literally.
The city took on a strange rose hue throughout the day, wowing residents
and leading to plenty of theories. CBC North's Nick Murray snapped a
photo of the colouration outside CBC's Iqaluit bureau,
which was shared widely across Facebook and Twitter. By Wednesday afternoon, the photo had reached nearly 200,000 people on CBC's Facebook pages alone.
The photo was quickly confirmed by other Iqaluit residents, some of which had their own theories.
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Nick
Murray snapped this photo outside of CBC North's Iqaluit office on
Tuesday. Numerous other Iqaluit residents commented on the city's red
hue, which was likely caused due to light scattering. © Nick Murray/CBC
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Another
unfiltered photo of the pink colouring that fell over Iqaluit Tuesday
afternoon. Ashley Brauweiler, CBC North's meteorologist, says the
colouration was likely caused by light scattering. This photo was taken
approximately 30 minutes after Nick Murray's, explaining the darker
colouring.© Sima Sahar Zerehi/CBC
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A
snapshot of the reaction on Facebook to the red hue that fell over
Iqaluit Tuesday. Some people commented on their awe at seeing the scene,
while others offered up theories. © Facebook
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Murray's
original photo, taken Tuesday at 2:30 p.m. local time, is on the left. A
second photo of the same location, taken Wednesday at noon, is on the
right.© Nick Murray/CBC
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"Ziggy Stardust just flew by," commented Kevin Robinson, a reference to the recent passing of David Bowie.
"Is it be cuz [sic] of your sunglasses?" asked Susie Pinguatuq, commenting on
CBC Nunavut's Facebook page.
Light scattering likely culprit
However, the likely answer for the strange colouration isn't related to
pop icons, or eyewear: instead, it's rooted in how light reacts with the
atmosphere.
CBC North meteorologist Ashley Brauweiler says Iqaluit's red sky is
likely a result of light scattering, where sunlight is reflected through
particles in the atmosphere. The colouring was also likely intensified
by the time of day the photo was taken — near sunset — when the sun is
lower in the sky.
"When the sun is at a low angle in the sky, the light has a longer
distance to travel," said Brauweiler. "The blue [colouration, which
leads to a more common 'blue sky'] gets removed by the ice crystals and
salt in the air, which leaves red visible."
"The clouds are much larger than light waves, which allows them to take on the colour, in this case pink."
-
CBC News.
Nacreous rainbow cloud seen over Leicester, UK
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The cloud that appeared earlier this evening over Leicester, UK.
© Chris Gordon
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People across Leicester were left astounded this afternoon when an unusual cloud formation appeared in the sky.
The formation, which looked like a rainbow around an oval of bright
light, appeared at about 5pm in an otherwise murky, grey sky.
Witnesses took photos of the phenomenon and uploaded them to Twitter, many commenting on the "beautiful" appearance.
Leicester Mercury weatherman Dave Mutton said the formation was the result of a cold front moving from the North down to the South.
He said that when a cold front meets a warmer front, bits of cloud break off, creating a gap in cloud cover.
Today's 'gap' occurred just as the sun was setting behind it, creating the ethereal oval of light.
He said the rainbow effect appeared because of the light refracting through ice crystals or water droplets in the clouds.
Dave said: "It would have been quite a sight with the sun setting behind it."
However, Dave said it could have also been a polar stratospheric cloud.Polar
stratospheric clouds form at very high altitudes, between 15km and 25km
(about 50,000 to 80,000 feet) and at very cold temperatures (around -78
deg C).
They are also known as nacreous clouds, from nacre, or mother of pearl, due to their iridescent nature.
Lisa Tubby, of Thurnby Lodge, was among the many people intrigued by the phenomenon, but said it made her feel slightly anxious.
She said: "To be honest, at first I thought it was another planet
because of its circle shape, but also because I'd never seen anything
like it before.
"I told my daughter to come and have a look at it, and she said it was
similar to when petrol and water mix, but I told her that of course it
wasn't that as there isn't any petrol in the sky.
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| © Chris Gordon |
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| © Chris Gordon |
"I then went to my mum and dad's, who live just down the road from me,
and my dad said it was a rainbow, and my mum said that it was unlike
anything she had seen in her life. She's 52 years old."
On Twitter, Leicester Schools Welcome Refugees said that a similar cloud
formation appeared in Birstall at 4.30pm this afternoon.
Mercury photographer Chris Gordon captured the phenomenon, which was only briefly in the sky, on camera.
He said: "It's amazing. I've never seen anything like it. It's very reminiscent of a rainbow.
"I decided to take the picture as everyone in the office was so excited
about it. Plus, I've always loved sunsets - they're my favourite
spectacle."
Posts on Twitter suggested the spectacle was visible all around the UK.
-
Leicester Mercury.