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Optical Effects
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A colourful mosaic spotted near Tainan, Taiwan
Cloud streets spotted at sunset near Vermontville, Adirondacks, New York, US
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Cumulus congetus 'peeking' over the White Mountains and the Ancient Bristlecone Pine Forest in Inyo County, near Bishop, California, US
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22-degree halo with signs of a 46-degree halo, spotted over Chikkajala, Bangalore, India
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Iridescence spotted over the Mystic River, Medford, Massachusetts, US
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Altocumulus undulatus, formed when stable air flows over a layer of wind shear, spotted over Hoi An, Vietnam
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A reflection of cumulus congestus in the Stinson Lagoon, West Marin, California, US
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Cirrus fibratus with cumulus dotting the sky below, spotted over Glebe, New South Wales, Australia
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Crepuscular rays during sunrise over the Atlantic Ocean, near Boca Raton, Florida, US
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A vibrant sky over Micco, Florida, US
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Cumulus spotted over Zhongzheng District, Taipei City, Taiwan
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Subtle signs of altocumulus lenticularis and potentially supercilium, spotted behind passing cumulus over South Melbourne, Victoria, Australia
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Orographic cumulus as a result of moist air being forced to rise over a mountain or hill, as spotted here near Paneveggio, Italy
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A storm system with an accompanying low cloud base, spotted over Monaco
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Due to the angle of the sunlight, a shadow of the cloud is cast onto the surrounding sky, a form of crepuscular rays and shadows, as spotted here over Maryland, US
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Cumulus on a mild spring day with little wind, spotted over Modbury Heights, Adelaide, South Australia, Australia
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