Duplicatus

Clouds : classification
Genera Cirrus Ci Cirrocumulus Cc Cirrostratus Cs Altocumulus Ac Altostratus As Stratocumulus Sc Stratus St. Cumulus Cu Nimbostratus Ns Cumulonimbus Cb	species calvus cal capillatus cap castellanus cas congestus con fibratus fib floccus flo fractus fra humilis hum lenticularis len mediocris med nebulosus neb spissatus spi stratiformis st uncinus unc volutus vol	Subspecies duplicatus you intortus in lacunosus la opacus op perlucidus pe radiatus ra translucidus tr undulatus un vertebratus ve Special forms arcus arc asperitas asp cauda cau cavum cav fluctus flu flumen flm incus inc mamma mam murus mur pannus pan pileus pil praecipitatio pra tuba tub velum vel virga vir

Duplicatus (du) ( Latin for "doubled") are cloud patches, fields or layers of clouds that are arranged close together and sometimes partially grown together. This name is mainly used for Cirrus , Cirrostratus , Altocumulus , Altostratus and Stratocumulus . It can only be seen from the ground in rare cases, for example when the lower layer of cloud shows holes.

Altocumulus duplicatus undulatus , two superimposed layers

Web links

Karlsruhe Cloud Atlas:

• Altocumulus stratiformis undulatus duplicatus