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Cloud Atlas ->
Altocumulus Altocumulus (Ac)
Description:
Grey cloud bundles,
sheds or rollers, compound like rough fleecy
cloud, which are often arranged in banks.
Origin:
-
By rise of an expanded air
layer at the border of a rising zone.
-
By convection or turbulence
within an unstable layer of the middle cloud level.
-
By transformation from
Altostratus und
Nimbostratus
at lability or Cumulus and
Cumulonimbus
at stability.
Possible cloud
species, subspecies and special forms:
|
species |
|
name |
shorcut |
meaning |
|
Altocumulus castellanus |
Ac cas |
from a common
cloud bank such as growing turrets. |
|
Altocumulus floccus |
Ac flo |
Individual small
bundles with fringy lower parts, frequently with
schleps. |
|
Altocumulus stratiformis |
Ac str |
Expanded
horizontal fields or layers. |
|
Altocumulus lenticularis |
Ac len |
lense-shaped,
almond-shaped |
|
subspecies |
|
name |
shorcut |
meaning |
|
Altocumulus undulatus |
Ac un |
wavelike |
|
Altocumulus radiatus |
Ac ra |
radially, parallel
bands and strips |
|
Altocumulus lacunosus |
Ac la |
perforated (round
frayed holes) |
|
Altocumulus duplicatus |
Ac du |
In two or several
layers lying one above the other. |
|
Altocumulus perlucidus |
Ac pe |
irregular sample
of small gaps in the cloud cover |
|
Altocumulus translucidus |
Ac tr |
translucently |
|
Altocumulus opacus |
Ac op |
dark cloud cover, sun or moon is not
recognizably. |
|
special forms |
|
name |
shorcut |
meaning |
|
Altocumulus mamma |
Ac mam |
sac-like,
wart-like excrescences at the bottom side of a
dense
cloud cover |
|
Altocumulus virga |
Ac vir |
with drop strips |
photos of
Altocumulus:
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 |
 |
 |
|
Altocumulus floccus |
Altocumulus
perlucidus |
Altocumulus undulatus |
Altocumulus lenticularis |
 |
 |
 |
 |
|
Altocumulus
perlucidus |
Altocumulus lenticularis |
Altocumulus lenticularis |
Altocumulus lenticularis |
other
Altocumulus clouds: [1][2][3][4][5][6][7][8]
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