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Cirrus castellanus (Ci cas) - CCH 1953


Fairly dense Cirrus in the form of small rounded and fibrous turrets or masses rising from a common base, and sometimes having a crenellated (castle battlement) appearance. The apparent width of the turret like protuberances may be smaller or greater than 1° when observed at an angle of more than 30° above the horizon; distinct to Cirrocumulus castellanus where the width is less than 1°. 


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