TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The planetary-scale cyclonic circulation, centered generally in the polar regions, extending from the middle troposphere to the stratosphere.  5, record 1, English, - polar%20vortex

Record number: 1, Textual support number: 1 OBS

The westerly airflow is largely a manifestation of the thermal wind above the polar frontal zone of middle and subpolar latitudes. The vortex is strongest in winter when the pole-to-equator temperature gradient is strongest. In the Northern Hemisphere, the vortex has two centers in the mean, one near Baffin Island and the other over northeast Siberia.  5, record 1, English, - polar%20vortex

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Tourbillon créé en haute troposphère, au-dessus de chacun des pôles géographiques, par la circulation cyclonique des vents d'ouest.  2, record 1, French, - tourbillon%20circumpolaire

Record number: 1, Textual support number: 1 CONT

Le phénomène du trou d'ozone est renforcé par l'existence de ce que l'on nomme le vortex polaire, un modèle de circulation particulier à la stratosphère au-dessus du pôle sud au cours de l'hiver austral et qui isole cette région de son environnement [...]  4, record 1, French, - tourbillon%20circumpolaire

Record number: 1, Textual support number: 1 OBS

Le tourbillon circumpolaire isole la couche d'ozone polaire des masses d'air environnantes, plus riches en ozone.  2, record 1, French, - tourbillon%20circumpolaire

Record number: 1, Textual support number: 2 OBS

Dans les textes techniques récents, probablement sous l'influence de l'anglais, c'est le terme «vortex polaire» qu'on emploie généralement.  2, record 1, French, - tourbillon%20circumpolaire

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Zona semi aislada de circulación ciclónica constituida cada invierno en la estratosfera polar.  3, record 1, Spanish, - v%C3%B3rtice%20polar

Record number: 1, Textual support number: 1 CONT

El vórtice polar austral es más fuerte que el septentrional. El vórtice aumenta el agotamiento del ozono al retener aire muy frío que contiene aerosoles y en el cual pueden tener lugar las reacciones de destrucción del ozono.  3, record 1, Spanish, - v%C3%B3rtice%20polar

Record number: 1, Textual support number: 2 CONT

Al fenómeno que azota EE.UU. [Estados Unidos] se lo denomina “vórtice polar”. Es un sistema de baja presión profunda que se extiende a los niveles superiores de la atmósfera y hace descender masas heladas de aire que, por lo general, circulan alrededor del Círculo Polar Ártico.  4, record 1, Spanish, - v%C3%B3rtice%20polar

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

Temporary or permanent breakdown of the antarctic or arctic stratospheric vortex, in late winter or early spring, due to a rapid rise of temperature of the polar stratosphere(up to about 50 K in a few days).  3, record 2, English, - explosive%20warming

Record number: 2, Textual support number: 1 CONT

Stratospheric warming (also called sudden warming) [means a] rise in temperature of the stratosphere in the polar region in late winter resulting from enhanced propagation of energy from the troposphere by planetary-scale waves.  4, record 2, English, - explosive%20warming

Record number: 2, Textual support number: 2 CONT

As a result of a high balloon ascent the explosive warming of the stratosphere above 20 km height ("stratospheric warming") was discovered over Berlin in 1952.  5, record 2, English, - explosive%20warming

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Effondrement temporaire ou permanent du tourbillon stratosphérique antarctique ou arctique, tard en hiver ou au début du printemps, lié à une hausse rapide de la température de la stratosphère polaire (jusqu'à 50 K en quelques jours).  1, record 2, French, - r%C3%A9chauffement%20explosif

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Desaparición permanente o transitoria del torbellino estratosférico antártico o ártico ocasionado por una rápida subida de la temperatura de la estratosfera polar (del orden de unos 50 K en unos pocos días) a finales del invierno o a principios de la primavera.  1, record 2, Spanish, - calentamiento%20explosivo

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

The disappearance of the circumpolar vortex when the polar night of winter ends.  2, record 3, English, - vortex%20breakdown

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Disparition du tourbillon circumpolaire au moment où prend fin la nuit de l'hiver polaire.  2, record 3, French, - rupture%20du%20tourbillon

Record number: 3, Textual support number: 1 OBS

Depuis quelques années, c'est au printemps polaire, après la rupture du vortex, qu'apparaît le trou d'ozone.  2, record 3, French, - rupture%20du%20tourbillon

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The seasonal depletion of ozone in a large area of Antarctica.  3, record 4, English, - Antarctic%20ozone%20hole

Record number: 4, Textual support number: 1 CONT

Antarctic ozone hole... The extremely cold temperatures within the polar vortex lead to formation of polar stratospheric clouds(PSCs) over large areas in early winter. These clouds are the key to the severe ozone depletion which has become known as the ozone "hole". PSCs form at the lower, colder altitudes(10-25 kilometres). The clouds are a major factor in causing large total column ozone depletion in the springtime Antarctic stratosphere.  4, record 4, English, - Antarctic%20ozone%20hole

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Trou d'ozone situé dans l'hémisphère Sud au-dessus de l'Antarctique et du pôle Sud.  1, record 4, French, - trou%20d%27ozone%20antarctique

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

Persistent westerly stratospheric circulation during winter in the Northern Hemisphere; it is most intense between latitudes 60 and 70°N and increases with height up to the stratopause. Though of jet stream strength, its maximum speeds are less than half those of the Antarctic stratospheric vortex.  1, record 5, English, - arctic%20stratospheric%20vortex

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Circulation stratosphérique d'ouest persistante, en hiver, dans l'hémisphère Nord; elle est le plus intense entre les latitudes 60 et 70 °N et augmente avec l'altitude jusqu'à la stratopause. Bien qu'elle ait la force du courant-jet, ses vitesses maximales sont moins de la moitié de celles du tourbillon stratosphérique antarctique.  1, record 5, French, - tourbillon%20stratosph%C3%A9rique%20arctique

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Persistente circulación estratosférica, con vientos del oeste, presente durante el invierno en el hemisferio Norte; alcanza su mayor intensidad entre los 60° y los 70°N de latitud, acentuándose con la altura hasta el nivel de la estratopausa. Aunque tiene velocidades comparables con las de una corriente en chorro, los valores máximos son inferiores en más de un 50% a los observados en el vórtice estratosférico antártico.  1, record 5, Spanish, - v%C3%B3rtice%20estratosf%C3%A9rico%20%C3%A1rtico