Cirrus duplicatus

Cirrus duplicatus is a variety of cirrus cloud. The name cirrus duplicatus is derived from Latin, meaning "double".[2] The duplicatus variety of cirrus clouds occurs when there are at least two layers of cirrus clouds. Most of the time, occurrences of cirrus fibratus and cirrus uncinus are in the duplicatus form.[3] Like stratus clouds, cirrus clouds are often seen in the duplicatus form.[4]

Cirrus duplicatus
AbbreviationCi du
GenusCirrus (curl of hair)
Varietyduplicatus (multiple layers)
AltitudeAbove 5,000 m
(Above 16,500 ft)
Appearancetwo or more overlapping layers[1]
Precipitation cloud?No

See also


  1. Wolken Online. "Cirrus". Cloud Atlas. Retrieved 13 July 2011.
  2. Latin Lookup. "duplicatus". Archived from the original on 27 March 2012. Retrieved 13 July 2011.
  3. Callanan, Martin. "Cirrus duplicatus". International Cloud Atlas. Retrieved 13 July 2011.
  4. Dunlop, Storm (2003). The weather identification handbook (1st Lyons Press ed.). Guilford, Conn.: Lyons Press. p. 58. ISBN 1-58574-857-9.

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