What are nacreous clouds? | Space
2024年3月2日 · Nacreous clouds, or ice polar stratospheric clouds, are a rare type of cloud that forms in very cold conditions and at high altitudes. They are known for their iridescent colors, …
Polar stratospheric cloud - Wikipedia
This type of PSC is also referred to as nacreous (/ ˈneɪkriəs /, from nacre, or mother of pearl, due to its iridescence). The stratosphere is very dry; unlike the troposphere, it rarely allows clouds …
Nacreous Clouds Explained: How It Happens (And Where To See …
2023年9月28日 · Nacreous clouds are highly iridescent clouds that form in the stratosphere at extremely low temperatures of around negative 85 degrees Celsius. Scientifically, these …
Nacreous clouds - International Cloud Atlas
Ice polar stratospheric clouds, or nacreous clouds, occur mainly at high latitudes during the winter when temperatures in the stratosphere fall below the frost point. They are most common in …
Nacreous clouds - Met Office
Nacreous clouds are rare and very high clouds, known mainly for the coloured light they reflect after sunset and before sunrise. The colours are reminiscent of the colours which reflect...
Cloud iridescence - Wikipedia
Cloud iridescence or irisation is a colorful optical phenomenon that occurs in a cloud and appears in the general proximity of the Sun or Moon. The colors resemble those seen in soap bubbles …
Explainer: what are the ‘nacreous clouds’ lighting up the winter …
2016年2月3日 · These clouds enhance the breakdown of the Earth’s ozone layer, a vital part of our atmosphere that provides protection from the sun’s harmful ultraviolet rays.
Mother Of Pearl Clouds: Explaining The Appearance Of Nacreous Clouds
2024年2月9日 · Nacreous or mother-of-pearl clouds are polar stratospheric clouds occurring in the lower stratosphere shortly after sunset in locations near the Arctic Circle. This rare …
Nacreous - Cloud Appreciation Society
Forming at altitudes of 10–20 miles (15-25 km), up in the stratosphere, at temperatures of around -85˚C (-121˚F), nacreous clouds show beautiful iridescent pastel hues as they scatter the light …
Weather Words: 'Nacreous Clouds' | Weather.com - The Weather …
2023年12月21日 · Nacreous clouds, sometimes called mother-of-pearl clouds, are a rare and visually striking type of cloud with a surprising connection to our climate. These clouds form at …