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ARCUS [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2005-07-25

English

Subject field(s)
  • Atmospheric Physics
DEF

A dense, horizontal roll with more or less tattered edges, situated on the lower front part of certain clouds and having, when extensive, the appearance of a dark, menacing arch.

OBS

This supplementary feature occurs with Cumulonimbus and, less often, with Cumulus.

OBS

According to the "Standard Dictionary of Meteorological Sciences" (PROME), the "American Meteorological Society Glossary of Meteorology" and the "Glossaire de météorologie et de climatologie" (VILME), "roll cloud" is a popular term for "arcus". According to the "American Meteorological Society Glossary of Meteorology", "arcus" is also called a "shelf cloud". However, according to "<a href="http://meted.ucar.edu/mesoprim/glossary.htm" title="http://meted.ucar.edu/mesoprim/glossary.htm">http://meted.ucar.edu/mesoprim/glossary.htm</a>", "roll clouds" and "shelf clouds" are both types of "arcus clouds".

Key term(s)
  • roll of cloud
  • arcus cloud

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Rouleau horizontal, dense, ayant des bords plus ou moins effilochés, situé à l'avant de la partie inférieure de certains nuages et prenant, lorsqu'il est étendu, l'aspect d'un arc sombre et menaçant.

OBS

Cette particularité supplémentaire se présente avec les Cumulonimbus et, plus rarement, avec les Cumulus. Les Cumulus en rouleaux sont parfois de type Arcus ou Cumulus arcus.

OBS

Selon les sources «Standard Dictionary of Meteorological Sciences» (PROME) et «Glossaire de météorologie et de climatologie» (VILME), «nuage en rouleau» est un terme populaire.

Key term(s)
  • rouleau de nuages

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
DEF

Rodillo horizontal y denso, con bordes más o menos deshilachados, situado en la parte delantera e inferior de ciertas nubes que posee, cuando es extenso, el aspecto de un arco oscuro y amenazador.

OBS

Esta particularidad suplementaria se observa en los Cumulonimbus y con menor frecuencia en los Cumulus.

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