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Climatologie

types de nuage

TermDefinition
Cirrus (Ci) nuages blancs très fins en forme de filaments ou de coups de griffe. annoncent un front chaud
Cirrostratus (Cs) voiles légers et blanchâtre recouvrant plus ou moins tout le ciel (halo)
Cirrocumulus (Cc) banc de nuages blancs plus ou moins alignés, sans ombre propre, composés de très petits éléments en forme de granulé ou de rides.
Altostratus (As) nappe ou couche nuageuse grise plus épaisse que les cirrostratus; le soleil est encore plus ou moins visible à travers ces nuages
Altocumulus (Ac) Banc de nuage gris ou blanc plus épais que les Cc, avec des ombres propre en forme de galet, de rouleau, lamelles qui fait que le ciel est moutonné. (absorbe un peu du rayonnement solaire) Ac lenticulaire (onde relief), Ac castellanus (air instable)
Stratocumulus (Sc) banc de nuage gris ou blanchâtre, avec des parties sombres, en forme de dalle, de galets ou gros rouleaux (provoque au plus des précipitations occasionnelles
Stratus (St) couche nuageuse grise, à base assez uniforme brouillard bas et élevé, avec quelque fois de la bruine (pas de pluie)
Nimbostratus (Ns) couche nuageuse épaisse, grise, souvent sombre, dont l'aspect est rendu flou par les précipitation continues tombant de ces nuages jusqu'au sol.
Cumulus (Cu) nuages blancs ou gris séparés, dense et à contours bien délimités, se développant verticalement en forme de dômes, de tours ou de choux fleurs.
Cumulonimbus (Cb) nuages dense et puissants, ayant une grande extension verticale, en forme de montagne ou d'énorme tours avec souvent une enclume au sommet (nuage d'averse et d'orage, voire de grêle
Created by: reynard.amelie
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