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Organizing and summarizing search results for youPolar Stratospheric Nacreous Clouds, also known as Type II polar stratospheric clouds, form at very high altitudes and extremely cold temperatures. They are made of tiny, spherical ice crystals that diffract sunlight before dawn and after sunset, causing a display of vibrant colors. These clouds are most common in Antarctica but have also been observed in the Arctic and other regions. They need temperatures below -78°C to form and are usually seen in polar regions. PSCs are often found downwind of mountain ranges in the winter polar stratosphere.4 Sources
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Polar stratospheric cloud - Wikipedia
A polar stratospheric cloud (PSC) is a cloud that forms in the winter polar stratosphere at altitudes from 15,000 to 25,000 m (49,000 to 82,000 ft). They are best observed during civil twilight, when the Sun is between 1° and 6° below the horizon, as well as in winter and in more northerly latitudes. One main … See more
The stratosphere is very dry; unlike the troposphere, it rarely allows clouds to form. In the extreme cold of the polar winter, however, … See more
Research
• Nacreous Clouds at atoptics.co.uk
• Polar Stratospheric Clouds Above Spitsbergen at Alfred Wegener Institute
News reports
• See moreWikipedia text under CC-BY-SA license What are nacreous clouds? | Space
Polar Stratospheric clouds - Vajiram & Ravi
Dec 21, 2023 · Recently, weather watchers have captured images of rare Polar stratospheric clouds over Scotland, northern England and the West Midland. These are also known as nacreous clouds or mother of pearl, due to their …
Polar Stratospheric Clouds: All you need to know
Jan 28, 2022 · Also known as Nacreous clouds or Ice Polar Stratospheric Clouds, or Mother-of-Pearl Clouds, these clouds are rare and unique, having aroused the curiosity of nature admirers, scientists, and environmentalists alike, for …
Nacreous and Polar Stratospheric Clouds - Atmospheric Optics
This article explores the mesmerizing phenomenon of nacreous and polar stratospheric clouds, discussing their formation, composition, and impact on the ozone layer. These captivating …
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 …
Explainer: what are the ‘nacreous clouds’ lighting up …
Feb 3, 2016 · Nacreous clouds typically form in the winter polar stratosphere, a layer of our atmosphere around 15,000 to 25,000m in altitude. The stratosphere is generally very dry and so cloud formation...
Polar Stratospheric Clouds - Atmospheric Optics
Dec 16, 2024 · Polar Stratospheric Clouds (PSCs), also known as nacreous clouds, are a captivating atmospheric phenomenon that occurs in the polar regions during the winter …
Nacreous Clouds & Polar Stratospheric Clouds Are The Mother …
Sep 25, 2024 · Nacreous clouds -- also called Mother of Pearl clouds or Polar Stratospheric clouds -- are somewhat rare clouds that are most likely to be seen in the far northern latitudes. …
Nacreous Clouds Explained: How It Happens (And …
Sep 28, 2023 · Nacreous clouds are a type of polar stratospheric cloud and are associated with freezing and dry weather. Depending on chemical composition, ambient temperature, and elevation, scientists classify...
What are Polar Stratospheric Clouds (PSCs)?
Dec 22, 2023 · Residents in the Arctic have witnessed an extraordinary atmospheric display of Polar Stratospheric Clouds (PSCs). Form in the polar stratosphere at altitudes of 15,000–25,000 meters; common over Antarctica …
Nacreous and Polar Stratospheric Clouds - atoptics.org.uk
Nacreous clouds are a type of Polar Stratospheric Cloud (PSC). Nacreous clouds composed of ice crystals with temperatures of ~minus 85ºC. Less spectacular than nacreous clouds, more …
Polar stratospheric clouds - Glossary of Meteorology
PSC are thought to play a major role in the formation of the " ozone hole " because they absorb odd nitrogen from the atmosphere, which allows the catalytic destruction of ozone to occur. …
Polar Stratospheric Clouds – Decoding Biosphere
Polar Stratospheric Clouds are unique structures that form under specific conditions during the cold and dark polar winters. In these frigid temperatures, water vapor condenses and freezes …
Polar stratospheric clouds - Australian Antarctic Program
Polar stratospheric clouds over Davis PSCs form poleward of about 60°S latitude in the altitude range 15–25 km during the winter and early spring. The clouds are classified into Types I and …
Nacreous clouds or polar stratospheric clouds: a rare phenomenon
Feb 10, 2025 · Nacreous clouds form high in the stratosphere at altitudes of 9 to 16 miles (15 to 25 km), owing their iridescent glow. Think delicate pinks, greens, blues, and violets—to the way …
Nacreous Clouds - Atmospheric Optics
Dec 16, 2024 · Nacreous clouds, also known as polar stratospheric clouds (PSCs), are a stunning and rare atmospheric phenomenon that captivates the eyes of onlookers. These unique …
Nacreous clouds - Met Office
Nacreous clouds form in the lower stratosphere over polar regions when the Sun is just below the horizon. The clouds are illuminated from below and often glow in vivid colours. Height of...
Polar stratospheric clouds (PSCs) | EBSCO Research Starters
Polar stratospheric clouds (PSCs), also known as nacreous clouds, are unique atmospheric phenomena that form in the lower stratosphere at altitudes between 15 and 25 kilometers, …
Nacreous clouds from Iceland - Atmospheric Optics
Dec 16, 2024 · Nacreous clouds, also known as polar stratospheric clouds (PSCs), are a captivating atmospheric phenomenon that graces the skies over Iceland. These unique cloud …
The dominant role of aerosol’s CCN effect in cloud glaciation
1 day ago · Engel, I. et al. Heterogeneous formation of polar stratospheric clouds - Part 2: Nucleation of ice on synoptic scales. Atmos. Chem. Phys. 13, 10769–10785 (2013). Google …
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