ultramarin marine translations
ultramarin.online
nl classificeren van wolken   a) methode wolken te onderscheiden naar uitzien, en voor zover mogelijk, naar hun ontstaan en naar hun systematische indeling in groepen; b) methode wolken te classificeren naar hun hoogte. Omdat het opkomen van wolken traditioneel gezien een belangrijke indicatie bij de weersvoorspelling is, is de classificatie van wolken een nuttig hulpmiddel in de meteorologische naivigatie.  
de Wolkenklassifikation a) Methode der Unterscheidung der Wolken nach ihrem Aussehen und, sofern möglich, nach ihrer Entstehung und ihre systematische Einteilung in Gruppen;
b) Methode der Klassifizierung von Wolken nach ihrer Höhe;
Da die Erscheinung der Wolken traditionell ein wichtiges Indiz der Wettervorhersage ist, stellt die Wolkenklassifikation ein nützliches Hilfmittel der meteorologischen Navigation dar.
en cloud classification a) a scheme of distinguishing and grouping clouds according to their appearance and, where possible, to their process of formation;
The classificaton in general use, based on a classification system introduced by Luke Howard in 1803, is that adopted by the World Meteorological Organization and published in the International Cloud Atlas (1956). This classification is based on the determination of
- genera, the main characteristic forms of clouds;
- species, the peculiarities in shape and differences in internal structure of clouds;
- varieties, special characteristics of arrangement and transparency of clouds;
- supplementary features and accessory clouds, appended and associated minor clouds forms; and
- mother-clouds, the origin of clouds if formed from other clouds.
b) a scheme of classifying clouds according to their usual altitudes;
Since the appearance of cloud formations traditionally is an important indicator for the weather to come, cloud classification may be seen as a useful aid to meteorological navigation.
c) a scheme of classifying clouds according to their particulate composition; namely water clouds, ice-crystal clouds, and mixed clouds. The first are composed entirely of water droplets (ordinary and/or super cooled), the second entirely of ice crystals, and the third a combination of the first two. Of the cloud genera, only cirrostratus and cirrus are always ice-crystal clouds;
cirrocumulus can also be mixed; and only cumulonimbus is always mixed. Altostratus nearly always is mixed, but occasionally can be ice crystal. All the rest of the genera are usually water clouds, occasionally mixed: altocumulus, cumulus, nimbostratus and stratocumulus.
fr classification des nuages  
es clasificación de las nubes  
it classificazione dell nubi