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The Government of Canada’s terminology and linguistic data bank.
THERMAL AIR CURRENT [3 records]
Record 1 - internal organization data 2015-03-12
Record 1, English
Record 1, Subject field(s)
- Meteorology
Record 1, Main entry term, English
- convection current
1, record 1, English, convection%20current
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- convective current 2, record 1, English, convective%20current
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Any current of air involved in convection such as a thermal or an updraught in a Cumulus cloud. 2, record 1, English, - convection%20current
Record 1, French
Record 1, Domaine(s)
- Météorologie
Record 1, Main entry term, French
- courant de convection
1, record 1, French, courant%20de%20convection
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- courant convectif 2, record 1, French, courant%20convectif
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Tout courant d'air associé à la convection tel que les thermiques ou les courants ascendants dans les Cumulus. 2, record 1, French, - courant%20de%20convection
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Meteorología
Record 1, Main entry term, Spanish
- corriente de convección
1, record 1, Spanish, corriente%20de%20convecci%C3%B3n
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- corriente convectiva 1, record 1, Spanish, corriente%20convectiva
feminine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Cualquier corriente de aire asociada a la convección, como las térmicas o las corrientes ascendentes en los Cumulus. 1, record 1, Spanish, - corriente%20de%20convecci%C3%B3n
Record 2 - internal organization data 2007-07-23
Record 2, English
Record 2, Subject field(s)
- Atmospheric Physics
Record 2, Main entry term, English
- thermal ascent
1, record 2, English, thermal%20ascent
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- thermal uplift 2, record 2, English, thermal%20uplift
correct
- thermal lift 3, record 2, English, thermal%20lift
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Thermal lift is created by areas of warm air rising from the land. As the land heats up with the warmth of the sun, the air above it will begin to warm by the heat radiating from the land. This is especially true over terrain such as a freshly plowed field or a paved parking area. As the air heats, it will begin to rise and allow cooler air to move in to replace it. This air, in turn, will heat up, rise, and you will get a continuous current of rising air. As long as the air is rising at a rate greater than a glider sinks while in flight, the glider can sustain lift. 4, record 2, English, - thermal%20ascent
Record 2, French
Record 2, Domaine(s)
- Physique de l'atmosphère
Record 2, Main entry term, French
- ascendance thermique
1, record 2, French, ascendance%20thermique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- thermique 2, record 2, French, thermique
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
[...] phénomène physique d'ascension [dans l'atmosphère] d'une masse d'air plus chaude que son environnement. 3, record 2, French, - ascendance%20thermique
Record number: 2, Textual support number: 1 CONT
Une ascendance thermique est le résultat de l'échauffement ponctuel du sol sous l'action du soleil. Plus fort est le contraste de température entre le sol et l'air qui le surmonte (sol chaud, air froid), meilleures seront les ascendances. Elles apparaissent dès que le réchauffement du sol est suffisant (souvent en fin de matinée) et disparaissent plus ou moins longtemps avant le coucher du soleil. 4, record 2, French, - ascendance%20thermique
Record number: 2, Textual support number: 1 OBS
ascendances : Mouvement verticaux de la masse d'air permettant, entre autre, de faire monter les planeurs. 2, record 2, French, - ascendance%20thermique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física de la atmósfera
Record 2, Main entry term, Spanish
- ascendencia térmica
1, record 2, Spanish, ascendencia%20t%C3%A9rmica
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2007-07-23
Record 3, English
Record 3, Subject field(s)
- Atmospheric Physics
Record 3, Main entry term, English
- thermal
1, record 3, English, thermal
correct, noun
Record 3, Abbreviations, English
Record 3, Synonyms, English
- thermal air current 2, record 3, English, thermal%20air%20current
correct
- thermal current 3, record 3, English, thermal%20current
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Rising parcels of warm air caused by the heating of Earth’s surface by sunshine. 4, record 3, English, - thermal
Record number: 3, Textual support number: 1 CONT
Thermals are created by the uneven heating of the Earth’s surface from solar radiation, and are an example of convection. The size and strength of thermals are influenced greatly by the properties of the lower atmosphere (the troposphere). The most important factor is the amount of atmospheric stability. Generally, when the atmosphere is less stable thermal formation is more likely. Thermals are often indicated by the presence of visible cumulus clouds. The rising air in a thermal cools as it ascends, until the water vapor in the air begins to condense into visible droplets. 5, record 3, English, - thermal
Record number: 3, Textual support number: 2 CONT
An eagle, or a glider, caught in a thermal air current, is lifted upwards with the current. 2, record 3, English, - thermal
Record number: 3, Textual support number: 1 OBS
thermal: The use of this term is usually reserved to denote those currents either too small and/or too dry to produce convective clouds; thus, thermals are a common source of low-level clear-air turbulence. 3, record 3, English, - thermal
Record number: 3, Textual support number: 2 OBS
It is generally believed that the term originated in glider flying ... 3, record 3, English, - thermal
Record 3, French
Record 3, Domaine(s)
- Physique de l'atmosphère
Record 3, Main entry term, French
- ascendance thermique
1, record 3, French, ascendance%20thermique
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- courant thermique 2, record 3, French, courant%20thermique
correct, masculine noun
- thermique 3, record 3, French, thermique
correct, masculine noun
- courant d'origine thermique 4, record 3, French, courant%20d%27origine%20thermique
correct, masculine noun
- pompe 5, record 3, French, pompe
see observation, feminine noun, jargon
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Air chaud ascendant dans l'atmosphère. 6, record 3, French, - ascendance%20thermique
Record number: 3, Textual support number: 1 CONT
[...] les courants thermiques sont générés par le soleil; le rayonnement solaire réchauffe le sol qui diffuse la chaleur qu'il a emmagasiné dans l'air qui lui est proche. Petit à petit la quantité d'air chaud augmente jusqu'à créer une poche d'air bien plus chaude que l'atmosphère environnante, elle tend donc à s'élever comme une montgolfière puis se détache du sol et monte en altitude, on parle souvent de «bulle» d'air chaud. En arrivant dans les couches de l'atmosphère plus froides elles forment des nuages : les cumulus. 7, record 3, French, - ascendance%20thermique
Record number: 3, Textual support number: 2 CONT
Il existe quatre types principaux d'ascendance, qui peuvent d'ailleurs se combiner : [...] les ascendances thermiques, ou simplement les thermiques (nom employé au masculin) [...] Ce mécanisme de thermoconvection est utilisé dans le vol à voile. [...] 8, record 3, French, - ascendance%20thermique
Record number: 3, Textual support number: 3 CONT
[Les] courants thermiques [...] permettent aux oiseaux comme les vautours de s'élever et de planer. 9, record 3, French, - ascendance%20thermique
Record number: 3, Textual support number: 1 OBS
pompe : jargon utilisé par les vélivoles et les libéristes (deltistes ou parapentistes). 10, record 3, French, - ascendance%20thermique
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Física de la atmósfera
Record 3, Main entry term, Spanish
- térmica
1, record 3, Spanish, t%C3%A9rmica
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Corriente ascendente producida localmente sobre una superficie más caliente que su entorno. 2, record 3, Spanish, - t%C3%A9rmica
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