Cirrus castellanus cloud

Cirrus castellanus
Abbreviation	Ci cas
Symbol
Genus	Cirrus (curl of hair)
Species	castellanus (castle-shaped)
Altitude	Above 6,000 m (Above 20,000 ft)
Classification	Family A (High-level)
Appearance	A series of dense lumps, or "towers" of cirrus, connected by a thinner base.
Precipitation cloud?	No

Cirrus castellanus is a species of cirrus cloud. Its name comes from the word castellanus, which means of a fort, of a castle in Latin.^[1] Like all cirrus, this species occurs at high altitudes. It appears as separate turrets rising from a lower-level cloud base. Often these cloud turrets form in lines, and they can be taller than they are wide.^[2] This cloud species is usually dense in formation.^[3]

References

↑ Numen - The Latin Lexicon. "Definition of castellanus". Retrieved 11 September 2011.
↑ Dunlop, Storm (2003). The weather identification handbook (1st Lyons Press ed.). Guilford, Conn.: Lyons Press. p. 57. ISBN 1-58574-857-9. Retrieved 11 September 2011.
↑ Callanan, Martin. "Cirrus castellanus". International Cloud Atlas. nephology.eu. Retrieved 11 September 2011.

External links

International Cloud Atlas - Cirrus fibratus

Cirrus cloud (Ci) types

Species	Cirrus castellanus (Ci cas) Cirrus fibratus (Ci fib) Cirrus floccus (Ci flo) Cirrus spissatus (Ci spa) Cirrus vertebratus (Ci ve) Cirrus uncinus (Ci unc)

Varieties	Cirrus duplicatus (Ci du) Cirrus intortus (Ci in) Cirrus radiatus (Ci ra) Cirrus undulatus (Ci un)

Variants	Cirrus aviaticus

Cloud genera and selected species, supplementary features, and other airborne hydrometeors - WMO Latin terminology except where indicated

Extreme-level	Polar mesospheric cirriform type Noctilucent

Very high-level	Polar stratospheric cirriform type Nacreous

High-level	Tropospheric cirriform, stratiform, and stratocumuliform genera Cirrus (Ci) Cirrostratus (Cs) Cirrocumulus (Cc) General type (non-WMO terminology) Aviaticus cloud (Contrail)

Medium-level	Tropospheric stratiform and stratocumuliform genera Altostratus (As) Altocumulus (Ac) Stratocumuliform species Altocumulus castellanus (Ac cas)

Low-level	Tropospheric stratiform, stratocumuliform and cumuliform genera Stratus (St) Stratocumulus (Sc) Cumulus (Cu) Stratiform and cumuliform species Fractus Cumulus humilis (Cu hum) Stratocumulus variants (non-WMO terminology) Actinoform cloud Undulatus asperatus

Moderate vertical	Tropospheric stratiform and cumuliform genera Nimbostratus (Ns) Cumulus (Cu) Cumuliform species Cumulus mediocris (Cu med) Cumuliform supplementary features Cumulus Pileus Cumulus Arcus (Roll)

Towering vertical	Tropospheric cumulonimbiform genus Cumulonimbus (Cb) Cumuliform species Cumulus congestus (ICAO term Towering cumulus [Tcu]) Cumuliform and cumulonimbiform supplementary features mamma Tuba (Funnel cloud) Pileus Arcus (Shelf) Cumuliform and cumulonimbiform variants (non-WMO terminology) Wall cloud Pyrocumulus Pyrocumulonimbus Cumulonimbus Overshooting top Hot tower

Surface based	General type Fog

Non-height specific	General types Accessory cloud Kelvin-Helmholtz cloud

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Cirrus castellanus cloud

See also

References

External links