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TOURBILLON AXE HORIZONTAL TYPE «ROTOR» [1 record]
Record 1 - internal organization data 2003-12-02
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Aircraft Piloting and Navigation
Record 1, Main entry term, English
- rotor wind
1, record 1, English, rotor%20wind
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- rotor vortex wind 2, record 1, English, rotor%20vortex%20wind
- rotor 3, record 1, English, rotor
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
... a particular turbulence structure, [that is] a horizontal, tornado-like vortex that forms on the downwind side of a mountain. 2, record 1, English, - rotor%20wind
Record number: 1, Textual support number: 1 CONT
Rotor winds are associated with mountainous terrain and strong winds aloft. Mountain flights should anticipate rotor winds, and in particular, when wind aloft forecasts exceed 15 knots at mountain peak altitude. ... Surprisingly, rotor winds can be completely free of turbulence; however, this is not always true. 4, record 1, English, - rotor%20wind
Record number: 1, Textual support number: 2 CONT
When strong winds of 40 to 50 miles per hour are blowing perpendicular to a mountain range, expect mountain waves and strong downdrafts for many miles on the leeward side. The presence of mountain waves can be identified by lenticular (lens shaped) clouds on the downwind side of the mountains. Rotor winds are also associated with this wind condition. These are strong winds rotating in a wheel like fashion on the immediate leeward side of mountains. 5, record 1, English, - rotor%20wind
Record number: 1, Textual support number: 3 CONT
Although rotor vortex winds don't reach tornadic speeds, "pilots definitely don't want to find themselves entering a rotor near the ground" ... 2, record 1, English, - rotor%20wind
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Pilotage et navigation aérienne
Record 1, Main entry term, French
- vent de tourbillon d'aval
1, record 1, French, vent%20de%20tourbillon%20d%27aval
see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- vent tourbillonnaire orographique 1, record 1, French, vent%20tourbillonnaire%20orographique
see observation, masculine noun
- tourbillon horizontal 1, record 1, French, tourbillon%20horizontal
see observation, masculine noun
- tourbillon d'aval 2, record 1, French, tourbillon%20d%27aval
masculine noun
- tourbillon à axe horizontal 3, record 1, French, tourbillon%20%C3%A0%20axe%20horizontal
masculine noun
- tourbillon d'axe horizontal du type «rotor» 4, record 1, French, tourbillon%20d%27axe%20horizontal%20du%20type%20%C2%ABrotor%C2%BB
masculine noun
- rotor 5, record 1, French, rotor
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
[...] la turbulence dynamique de pente, présente dans les pentes exposées au vent aux cassures de terrain, dans toutes les pentes sous le vent, des tourbillons d'axe horizontal du type «rotor» de faible diamètre ou «rouleau» de plus grand diamètre peuvent alors apparaître. 4, record 1, French, - vent%20de%20tourbillon%20d%27aval
Record number: 1, Textual support number: 2 CONT
Les turbulences sont d'origine dynamique ou thermique. On peut les classifier en : remous; rotor (tourbillon à axe horizontal); rouleau (tourbillon à axe vertical). 6, record 1, French, - vent%20de%20tourbillon%20d%27aval
Record number: 1, Textual support number: 3 CONT
... en se rapprochant du sol le système ondulatoire régulier dégénère en tourbillons isolés, en phase avec le sommet de l'onde, on les appelle «rotors». [...] Le diamètre de ce tourbillon est de l'ordre de 300 à 600 mètres, le rendant dangereux pour un avion qui le traverse. 7, record 1, French, - vent%20de%20tourbillon%20d%27aval
Record number: 1, Textual support number: 4 CONT
Aux niveaux inférieurs, chaque crête sous le vent de l'entrave est indiquée par un puissant tourbillon ou tourbillon d'aval [...] 2, record 1, French, - vent%20de%20tourbillon%20d%27aval
Record number: 1, Textual support number: 1 OBS
La terminologie pour décrire cette notion n'est pas encore arrêtée. Messieurs Turcotte et Vaillancourt, d'Environnement Canada proposent respectivement : vent de tourbillon d'aval; vent tourbillonnaire orographique et tourbillon horizontal. 1, record 1, French, - vent%20de%20tourbillon%20d%27aval
Record number: 1, Textual support number: 2 OBS
En français, pour décrire ce phénomène, plusieurs auteurs utilisent simplement les termes «turbulences» et «tourbillons» qui sont des génériques. Par exemple : «turbulences et rabattants», «turbulences et tourbillons de sillage». 1, record 1, French, - vent%20de%20tourbillon%20d%27aval
Record number: 1, Textual support number: 3 OBS
L'Organisation météorologique mondiale rend «rotor clouds» par «nuages de tourbillon d'aval». 1, record 1, French, - vent%20de%20tourbillon%20d%27aval
Record 1, Spanish
Record 1, Textual support, Spanish
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