Cirrus vertebratus

Cirrus vertebratus cloud

Abbreviation| Ci ve
Symbol|
Genus| Cirrus (curl)
Species| vertebratus (jointed)
Altitude| Above 6,000 m
(Above 20,000 ft)
Classification| Family A (High-level)
Appearance| looks like a spinal column or a fish skeleton[1]
Precipitation cloud?| No

Cirrus vertebratus is a type of cirrus cloud. The name cirrus vertebratus is derived from Latin, meaning "jointed, articulated, vertebrated".[2] Like cirrus intortus, the vertebratus species is exclusive to the cirrus genus.[3] Cirrus vertebratus gives the impression of vertebrae in a spinal column, ribs, or a fish skeleton.[4]

The species is an unusual form of cirrus clouds and is formed by air moving parallel to the main cloud line. The gaps in the cloud occur where air is descending, while the "ribs" of the cloud correspond with areas of uplift. Their occurrence appears to be connected with the location of the jet stream.[5]

## See also

* List of cloud types

## References

1. ↑ Wolken Online. "Cirrus". Cloud Atlas. http://www.clouds-online.com/cloud_atlas/cirrus/cirrus.htm. Retrieved 13 July 2011.
2. ↑ Numen - The Latin Lexicon. "Definition of vertebratus". http://latinlexicon.org/definition.php?p1=2062674. Retrieved 13 July 2011.
3. ↑ Dunlop, Storm (2003). The weather identification handbook (1st Lyons Press ed.). Guilford, Conn.: Lyons Press. p. 58. ISBN 1-58574-857-9. https://books.google.com/books?id=KoZMvgAACAAJ.
4. ↑ Callanan, Martin. "Cirrus vertebratus". International Cloud Atlas. nephology.eu. http://nephology.eu/cirrus/cirrus-vertebratus. Retrieved 13 July 2011.
5. ↑ Wolstanton Weather. "Cumulus Clouds". Clouds. Archived from the original on 27 March 2012. https://web.archive.org/web/20120327014352/http://www.wolstanton.org.uk/public_html/web_weather/web/gallery_clouds_cirrus.php. Retrieved 13 July 2011.

## External links

* International Cloud Atlas – Cirrus vertebratus

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[[Earth:ClCloud List of cloud types|genera]] and selected species, supplementary features, and other airborne hydrometeors - WMO Latin terminology except where indicated

Mesospheric|

| Extreme-level
80-85 km|

| Noctilucent (NLC)
polar mesospheric clouds|

Noctilucent
Polar mesospheric clouds

|

Stratospheric|

| Very High-level
15-30 km|

| Nacreous clouds|

Nacreous

|

Nitric acid and water
polar stratospheric clouds (PSC)|

Nitric acid and water polar stratospheric clouds

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)

|

Ci only varieties|

* Cirrus intortus (Ci in)
* Cirrus vertebratus (Ci ve)

Cirrocumulus (Cc)|

| Species|

* Cirrocumulus castellanus (Cc cas)
* Cirrocumulus floccus (Cc flo)
* Cirrocumulus lenticularis (Cc len)
* Cirrocumulus stratiformis (Cc str)

|

Cirrostratus (Cs)|

| Species|

* Cirrostratus fibratus (Cs fib)
* Cirrostratus nebulosus (Cs neb)

|

High-level only
accessory and other|

(Homomutatus (homut) Contrail)

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)

|

Altostratus (As)|

Altostratus (As)

Nimbostratus (Ns)|

Nimbostratus (Ns)

Low-level
0-2 km|

| Cumulonimbus (Cb)|

| Species|

Cumulonimbus calvus (Cb cal)
Cumulonimbus capillatus (Cb cap)

|

Cb Only Supplementary features|

Cumulonimbus cauda ((cau) Tail cloud)
Cumulonimbus incus (inc)
Cumulonimbus murus ((mur) Wall cloud)

Cb only Accessories & Other|

Cumulonimbus flumen ((Cb flu) Beaver tail)
Overshooting top
Hot tower

Cumulus (Cu)|

| Species|

Fractus
Cumulus humilis (Cu hum)
Cumulus mediocris (Cu med)
Cumulus congestus (Cu con) (ICAO term Towering cumulus [Tcu])

|

Other|

Horseshoe

Stratus (St)|

| Species|

Stratus fractus (St fra)
Stratus nebulosus (St neb)

|

St only Accessories & Other|

Stratus silvagenitus (St sil)
Fog

Stratocumulus (Sc)|

| Species|

Stratocumulus castellanus (Sc cas)
Stratocumulus floccus (Sc flo)
Stratocumulus lenticularis (Sc len)
Stratocumulus stratiformis (Sc str)
Stratocumulus volutus (Sc vol)

|

Low-level only
supplementary features|

Arcus ((arc) Shelf)
Tuba ((tub) Funnel cloud)

Low-level only
accessory and other|

Pileus (pil)
Velum (vel)
Flammagenitus (flgen)
Cataractagenitus (cagen)

Non-height
specific|

| Varieties|

Duplicatus (du)
Lacunosus (la)
Opacus (op)
Perlucidus (pe)
Radiatus (ra)
Translucidus (tr)
Undulatus (un)

|

Supplementary features|

Asperitas (asp)
Cavum (cav)
Fluctus (flu)
Mamma (mam)
Praecipitatio (pra)
Virga (vir)

accessory and other|

Accessory cloud
Pannus (pan)
Homogenitus (hogen)
Actinoform cloud

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