Polar stratospheric clouds
Polar stratospheric clouds (PSCs)
Reine, Norway, December 31st 2016,
I woke up around 10am to see a bright coloured light from my window. It was a civil twilight, meaning sun does not rise or set, we just see some light for a while, then it's dark again. I was so attracted by the source of this light so I decided to go outside and try to capture some photos.
Once I am out, I headed towards the main road and just got shocked by witnessing the most magical and beautiful colours in the sky taking forms of clouds.
I tried snapping a photo with my phone, but I couldn't get the colours I saw. I used my cam, and it was so difficult to get a good photo, until I got satisfied with this one.
What I've witnessed is in fact what scientists call Polar Stratospheric Clouds (PSCs).
"Scientists recently discovered that polar stratospheric clouds, long known to play an important role in Antarctic ozone destruction, are occurring with increasing frequency in the Arctic. These high altitude clouds form only at very low temperatures help destroy ozone in two ways: They provide a surface which converts benign forms of chlorine into reactive, ozone-destroying forms, and they remove nitrogen compounds that moderate the destructive impact of chlorine. In recent years, the atmosphere above the Arctic has been colder than usual, and polar stratospheric clouds have lasted into the spring. As a result, ozone levels have been decreasing." - NASA
You can read more about Civil Twilight here: https://www.timeanddate.com/astronomy/civil-twilight.html
You can read more about Polar stratospheric clouds here: https://www.nasa.gov/multimedia/imagegallery/image_feature_680.html and https://watchers.news/2016/12/15/polar-stratospheric-clouds-sweeden-december-2016/
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