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A view of the sunrise over the Atlantic Ocean, near Boca Raton, Florida, US
Remnants of contrails that form into high level cirrus clouds via homogenitus, which is when clouds develop as a result of human activity such as from aircraft condensation trails; i.e., contrails. In this instance, it has taken on the look of "feathers" in this view near El Dorado Hills, California, US.
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A variety of cirrus clouds over Oakland, California, US
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A contrail partly hidden by lower level cumulus fractus over Soledad, California, US
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During sunrise there appears to be a small horseshoe vortex in the sky, along with signs of undulatus, near the Estrella Foothills, Arizona, US
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Remnants of a contrail on a blue sky day over Huntington, Indiana, US
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Cirrus over Seh Chahoun, Behabad City, Yazd Province, Iran
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Cirrus over Woodvale, Australia
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Precipitation in the distance, coupled with a view of clouds at different altitudes, spotted over Antelope Valley, California, US
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Cirrus vertebratus spotted on a hike in the Sonoran Desert, near Sabino Canyon, Tucson, Arizona, US
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A contrail and its associated homogenitus captured by Jim's neighbor, Marjorie Westermann. As Jim shares, their "remote mountain neighborhood found this cloud a 'feather in our caps' rewarding us for living and relishing high altitude life." This scene was photographed near the Tennessee Pass, at an elevation of 10,425 feet in the Sawatch Mountain Range, Colorado, US.
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In flight near cumulus fractus over Sydney, Australia
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Cirrus spissatus over Scarborough Marina, Queensland, Australia
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Contrails and contrail shadows present themselves in this unique atmospheric optical phenomena, wherein the shadows are created when the sun (or moon) casts a shadow of an aircraft contrail onto a lower layer of clouds or haze. The interplay of light, clouds, and ice crystals, coupled with one's viewing angle, gives rise to a captivating display in the sky, as seen here during sunset over Falls Church, Virginia, US.
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Cirrus spissatus over Island Bay, Wellington, New Zealand
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A "big bird" is spotted overhead in the midst of the cirrus clouds over Goodyear, Arizona, US
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