Cirrus duplicatus is a variety of
cirrus cloud
Cirrus ( cloud classification symbol: Ci) is a genus of high cloud made of ice crystals. Cirrus clouds typically appear delicate and wispy with white strands. In the Earth's atmosphere, cirrus are usually formed when warm, dry air rises, causing ...
. The name ''cirrus duplicatus'' is derived from
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
, meaning "double". 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
Cirrus fibratus, also called Cirrus filosus, is a type of cirrus cloud. The name ''cirrus fibratus'' is derived from Latin, meaning "fibrous". These clouds are similar to cirrus uncinus, commonly known as "mares' tails," yet different in that fi ...
and
cirrus uncinus
Cirrus uncinus is a species of cirrus cloud. The name ''cirrus uncinus'' is Latin for "curly hooks". Commonly called "mare's tail", this cloud species is very thin and generally sparse in the sky.
The clouds occur at high altitudes, at a temper ...
are in the duplicatus form. Like
stratus cloud
Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds formed by rising thermals. The term ''stratus'' describes flat, hazy, featureless clouds at low altit ...
s, cirrus clouds are often seen in the duplicatus form.
See also
*
List of cloud types
The list of cloud types groups all genera as ''high'' (cirro-, cirrus), ''middle'' (alto-), ''multi-level'' (nimbo-, cumulo-, cumulus), and ''low'' (strato-, stratus). These groupings are determined by the altitude level or levels in the troposphe ...
References
External links
International Cloud Atlas – Cirrus duplicatus
Duplicatus
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