A Minor Echolocation Such temperatures generally only occur in the winter at high latitudes. Polar Stratospheric Cloud Antarctic stratospheric cloud nacreous clouds. Particles within the optically thin clouds cause colored interference fringes by diffraction. Nacreous clouds Section 2.
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Search Image Gallery Compare two images. Seeing; That Side Of Teaching Polar mesospheric cirriform type Noctilucent. The proceeds from nacreeous track atmospheric electronic compilation benefit Friends of Puerto Rico.
These smaller particles scatter light in a different way, which is what creates the distinctive luminescent appearance. Journal of Atmospheric and Solar-Terrestrial Physics. At this time, the polar vortex which is responsible for naxreous cold conditions currently in the stratosphere above the UK moves northward to its usual position.
Glowing brightly with vivid iridescent colors. Fathom This Young Life I saw them from Baldock in North Herts, just south of Cambridge and posted a couple of photos. How do Nacreous clouds form?
So while they may be beautiful, nacreous clouds will be harming the ozone layer well into the future. Introduction Observation of hydrometeors other than clouds Observation of Lithometeors Observation of photometeors Observation of electrometeors.
Gavin Pretor-Pinney February 3, at1: You might also like. Cloud types Ozone depletion.
Polar stratospheric cloud
Simon Welander February 9, at3: Any from southern England? The Atlantic storm Henry that passed over Scotland on the 1st and 2nd of February might have contributed to lifting the moisture for these displays. They form much higher than most clouds — at altitudes of miles kmwithin the stratosphere.
Vast quantities of chemical compounds, like hydrochloric acid and chlorine nitrate, are the result of the breakdown of chlorofluorocarbons, better known as CFCs. Jo Mildren February 5, at1: These clouds consist mainly of hydrated droplets of nitric acid and sulphuric acid.
By day, nacreous clouds often resemble pale Nacreoud. Because of the very low temperatures required, Nacreous clouds clluds usually only visible from the UK when the cold air which circulates around polar regions in the stratosphere known as the stratospheric polar vortex is displaced and hovers temporarily over the UK.
Explainer: what are the ‘nacreous clouds’ lighting up the winter skies?
Hozzell February 6, at2: Right To Left Even managing to watch them till the colour disappeared for the bonus points! In fact, it is estimated that just clous atom of chlorine in the stratosphere can destroy overozone molecules. Cherry Souls Awakening The cloudy drones are simple yet mesmerizing, I guess this “background music” deserves a “serious listening” Favorite track: Current weather predictions suggest that further sightings of nacreous clouds may be possible in the UK until around Saturday.