TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
ICE PRISMS [3 records]
Record 1 - internal organization data 2005-07-25
Record 1, English
Record 1, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 1, Main entry term, English
- circumzenithal arc
1, record 1, English, circumzenithal%20arc
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Photometeor consisting of a luminous arc of a circle situated in a horizontal plane and centred at the zenith. 2, record 1, English, - circumzenithal%20arc
Record number: 1, Textual support number: 1 OBS
It sometimes happens that circumzenithal arcs are seen when the large halo is not visible. 2, record 1, English, - circumzenithal%20arc
Record number: 1, Textual support number: 2 OBS
It is produced by the refraction of light through the 90° prisms of ice crystals, having entered through the horizontal bases and passed out through the vertical sides. Normally, the crystals are large, oriented, hexagonal plates. The circumzenithal arc is the high sky counterpart of the circumhorizontal arc. The circumhorizontal arc is low in the sky when the sun is high(above 58° elevation) ;the circumzenithal arc is high in the sky when the sun is low(below 32° elevation). The majority of circumzenithal arcs are short-lived, short in length and faint or moderately bright. However, very colorful circumhorizontal arcs can occur when the refraction is close to the minimum angle of deviation, corresponding to a solar elevation angle of about 22°. 3, record 1, English, - circumzenithal%20arc
Record 1, French
Record 1, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 1, Main entry term, French
- arc circumzénithal
1, record 1, French, arc%20circumz%C3%A9nithal
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Photométéore consistant en un arc de cercle lumineux situé dans un plan horizontal et centré au zénith. 2, record 1, French, - arc%20circumz%C3%A9nithal
Record number: 1, Textual support number: 1 CONT
L'arc circumzénithal est moins fréquent, car il n'apparaît que si la hauteur du soleil au-dessus de l'horizon est inférieure à 32,2 degrés. Cet arc est formé quand la lumière solaire entre dans le cristal par la face horizontale supérieure et en ressort par une face latérale verticale. Quand le soleil est au-dessus de 32,2 degrés, la lumière est entièrement réfléchie à l'intérieur du cristal; c'est pourquoi on ne voit cet arc que lorsque le Soleil est relativement bas sur l'horizon. À 32,2 degrés, la lumière ressort du cristal verticalement vers le bas; on verra alors l'arc circumzénithal comme un point éclatant au zénith. À mesure que le soleil descend (se couche), le point se déploie pour former un arc de cercle coloré et centré au zénith face au soleil. Pour être bien technique, lorsque le soleil est à 22,1 degrés, l'éclat de l'arc est à son maximum et il est tangent au grand halo. 3, record 1, French, - arc%20circumz%C3%A9nithal
Record number: 1, Textual support number: 1 OBS
Il arrive parfois que l'on observe les arcs circumzénithaux sans que le grand halo soit visible. 2, record 1, French, - arc%20circumz%C3%A9nithal
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 1, Main entry term, Spanish
- arco circumcenital
1, record 1, Spanish, arco%20circumcenital
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Fotometeoro formado por un arco de un círculo luminoso situado en un plano horizontal y concéntrico con el cenit. 1, record 1, Spanish, - arco%20circumcenital
Record number: 1, Textual support number: 1 OBS
A veces ocurre que se ven los arcos circumcenitales cuando no es visible el halo grande. 1, record 1, Spanish, - arco%20circumcenital
Record 2 - internal organization data 2005-07-25
Record 2, English
Record 2, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 2, Main entry term, English
- circumhorizontal arc
1, record 2, English, circumhorizontal%20arc
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A halo phenomenon consisting of a coloured arc, red on its upper margin; it extends for about 90° parallel to the horizon and lies about 46° below the Sun [or Moon]. 2, record 2, English, - circumhorizontal%20arc
Record number: 2, Textual support number: 1 OBS
It is produced by the refraction of light through the 90° prisms of ice crystals, having entered through the vertical sides and passing out through the horizontal bases. Normally, the crystals are large, oriented, hexagonal plates. The circumhorizontal arc is the low sky counterpart of circumzenithal arc. The circumhorizontal arc is low in the sky when the sun is high(above 58° elevation) ;the circumzenithal arc is high in the sky when the sun is low(below 32° elevation). The most colorful circumhorizontal arcs occur when the refraction is close to the minimum angle of deviation, and this corresponds to a solar elevation angle of about 68°. In the midlatitudes, the sun only climbs to that elevation for a few hours mid day around the summer solstice. 3, record 2, English, - circumhorizontal%20arc
Record 2, French
Record 2, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 2, Main entry term, French
- arc circumhorizontal
1, record 2, French, arc%20circumhorizontal
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Phénomène de halo consistant en un arc coloré, rouge à son extrémité supérieure; il s'étend sur environ 90° parallèlement à l'horizon, à 46° au-dessous du Soleil. 2, record 2, French, - arc%20circumhorizontal
Record number: 2, Textual support number: 1 CONT
Quand le Soleil est assez haut dans le ciel (de 32° à 90° de hauteur de l'horizon) un arc circumhorizontal peut être visible sous le Soleil près de l'horizon lors de passage de cirrus. Ces arcs ont la forme inverse à l'arc circumzénithal, sont assez grands et sont produits par les cristaux plats. Ces arcs sont parmi les moins visibles. [...] Plus on est en basse latitude plus on a la chance de [les] voir [...] Ils ne peuvent pas être visibles quand on monte au-delà de 55° de latitude [...] Vers le nord de la France ou en Allemagne à 50° de latitude, l'arc circumhorizontal n'est visible qu'une fois en été [...] C'est un des [...] arcs à ne pas être visible partout sur Terre. 3, record 2, French, - arc%20circumhorizontal
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 2, Main entry term, Spanish
- arco circumhorizontal
1, record 2, Spanish, arco%20circumhorizontal
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Halo que consta de un arco coloreado con el rojo en su lado superior. Este arco se extiende alrededor de 90° paralelo al horizonte en una altura de aproximadamente 46° por debajo del Sol. 1, record 2, Spanish, - arco%20circumhorizontal
Record 3 - internal organization data 2003-11-18
Record 3, English
Record 3, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 3, Main entry term, English
- ice prism
1, record 3, English, ice%20prism
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Unbranched prismatic ice crystal, in the form of needles, columns or plates, often so tiny that it seems to be suspended in the air. 2, record 3, English, - ice%20prism
Record number: 3, Textual support number: 1 OBS
ice prisms : These crystals may fall from a cloud or from a cloudless sky 2, record 3, English, - ice%20prism
Record 3, Key term(s)
- ice prisms
Record 3, French
Record 3, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 3, Main entry term, French
- prisme de glace
1, record 3, French, prisme%20de%20glace
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Cristal de glace prismatique non ramifié ayant la forme d'aiguilles, de colonnes ou de plaques, souvent si ténu qu'il semble en suspension dans l'atmosphère. 2, record 3, French, - prisme%20de%20glace
Record number: 3, Textual support number: 1 OBS
prismes de glace : Ces cristaux peuvent tomber d'un nuage ou par ciel clair. 2, record 3, French, - prisme%20de%20glace
Record 3, Key term(s)
- prismes de glace
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 3, Main entry term, Spanish
- prisma de hielo
1, record 3, Spanish, prisma%20de%20hielo
masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Cristales de hielo, prismáticos y sin ramificaciones, con forma de agujas o placas, tan menudos que a veces parecen estar en suspensión en el aire. 1, record 3, Spanish, - prisma%20de%20hielo
Record number: 3, Textual support number: 1 OBS
prismas de hielo: Estos cristales pueden caer de una nube o de un cielo despejado. 1, record 3, Spanish, - prisma%20de%20hielo
Record 3, Key term(s)
- prismas de hielo
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