Short description: Type of cloud
| Cirrus floccus |
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 Cirrus floccus clouds |
| Abbreviation | Ci flo |
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| Symbol |  |
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| Genus | Cirrus (curl) |
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| Species | floccus (lock of wool) |
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| Altitude | Above 5,000 m
(Above 16,500 ft) |
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| Classification | Family A (High-level) |
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| Appearance | small tufts |
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| Precipitation cloud? | None |
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Cirrus floccus is a type of cirrus cloud. The name cirrus floccus is derived from Latin, meaning "a lock of wool".[1] Cirrus floccus occurs as small tufts of cloud, usually with a ragged base. The cloud can have virga falling from it, but the precipitation does not reach the ground.[2] The individual tufts are usually isolated from each other.[3] At formation, the cirrus floccus clouds are bright white and can be mistaken for altocumulus clouds; however, after a few minutes, the brightness begins to fade, indicating they are made up of pure ice, and are therefore at a higher level.[4]
See also
References
- ↑ Numen - The Latin Lexicon. "Definition of floccus". http://latinlexicon.org/definition.php?p1=1006366. Retrieved 13 July 2011.
- ↑ Dunlop, Storm (2003). The weather identification handbook (1st Lyons Press ed.). Guilford, Conn.: Lyons Press. p. 57. ISBN 1-58574-857-9. https://books.google.com/books?id=KoZMvgAACAAJ.
- ↑ Callanan, Martin. "Cirrus floccus". International Cloud Atlas. nephology.eu. http://nephology.eu/cirrus/cirrus-floccus. Retrieved 13 July 2011.
- ↑ Institute of Atmospheric Sciences at the South Dakota School of Mines & Technology. "Cirrus (floccus)". A Guide to the Sky. http://www.ias.sdsmt.edu/dept/clouds/1b.htm. Retrieved 13 July 2011.
External links
- International Cloud Atlas - Cirrus floccus
[[Earth:ClCloud List of cloud types|genera]] and selected species, supplementary features, and other airborne hydrometeors - WMO Latin terminology except where indicated |
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| Mesospheric | Extreme-level
80-85 km | Noctilucent (NLC)
polar mesospheric clouds |
- Noctilucent
- Polar mesospheric clouds
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| Stratospheric | Very High-level
15-30 km | | Nacreous clouds | |
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Nitric acid and water
polar stratospheric clouds (PSC) |
- Nitric acid and water polar stratospheric clouds
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| Tropospheric | High-level
3-18 km | | Cirrus (Ci) | | Species |
- Cirrus castellanus (Ci cas)
- Cirrus fibratus (Ci fib)
- Cirrus floccus (Ci flo)
- Cirrus spissatus (Ci spa)
- Cirrus uncinus (Ci unc)
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| Ci only varieties |
- Cirrus intortus (Ci in)
- Cirrus vertebratus (Ci ve)
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| Cirrocumulus (Cc) | | Species |
- Cirrocumulus castellanus (Cc cas)
- Cirrocumulus floccus (Cc flo)
- Cirrocumulus lenticularis (Cc len)
- Cirrocumulus stratiformis (Cc str)
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| Cirrostratus (Cs) | | Species |
- Cirrostratus fibratus (Cs fib)
- Cirrostratus nebulosus (Cs neb)
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High-level only
accessory and other |
- (Homomutatus (homut) Contrail)
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Medium-level
2-8 km | | Altocumulus (Ac) | | Species |
- Altocumulus castellanus (Ac cas)
- Altocumulus floccus (Ac flo)
- Altocumulus lenticularis (Ac len)
- Altocumulus stratiformis (Ac str)
- Altocumulus volutus (Ac vol)
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| Altostratus (As) | |
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| Nimbostratus (Ns) | |
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Low-level
0-2 km | | Cumulonimbus (Cb) | | Species |
- Cumulonimbus calvus (Cb cal)
- Cumulonimbus capillatus (Cb cap)
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| Cb Only Supplementary features |
- Cumulonimbus cauda ((cau) Tail cloud)
- Cumulonimbus incus (inc)
- Cumulonimbus murus ((mur) Wall cloud)
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| Cb only Accessories & Other |
- Cumulonimbus flumen ((Cb flu) Beaver tail)
- Overshooting top
- Hot tower
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| Cumulus (Cu) | | Species |
- Fractus
- Cumulus humilis (Cu hum)
- Cumulus mediocris (Cu med)
- Cumulus congestus (Cu con) (ICAO term Towering cumulus [Tcu])
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| Other | |
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| Stratus (St) | | Species |
- Stratus fractus (St fra)
- Stratus nebulosus (St neb)
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| St only Accessories & Other |
- Stratus silvagenitus (St sil)
- Fog
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| Stratocumulus (Sc) | | Species |
- Stratocumulus castellanus (Sc cas)
- Stratocumulus floccus (Sc flo)
- Stratocumulus lenticularis (Sc len)
- Stratocumulus stratiformis (Sc str)
- Stratocumulus volutus (Sc vol)
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Low-level only
supplementary features |
- Arcus ((arc) Shelf)
- Tuba ((tub) Funnel cloud)
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Low-level only
accessory and other |
- Pileus (pil)
- Velum (vel)
- Flammagenitus (flgen)
- Cataractagenitus (cagen)
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Non-height
specific | | Varieties |
- Duplicatus (du)
- Lacunosus (la)
- Opacus (op)
- Perlucidus (pe)
- Radiatus (ra)
- Translucidus (tr)
- Undulatus (un)
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| Supplementary features |
- Asperitas (asp)
- Cavum (cav)
- Fluctus (flu)
- Mamma (mam)
- Praecipitatio (pra)
- Virga (vir)
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| accessory and other |
- Accessory cloud
- Pannus (pan)
- Homogenitus (hogen)
- Actinoform cloud
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 | Original source: https://en.wikipedia.org/wiki/Cirrus floccus. Read more |
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