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ANNEAU TOURBILLONNAIRE [3 records]
Record 1 - internal organization data 1999-12-24
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
Record 1, Main entry term, English
- vortex ring
1, record 1, English, vortex%20ring
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
All downbursts are characterized by a circulation termed a "vortex ring", a vertically rotating circle of air. 2, record 1, English, - vortex%20ring
Record number: 1, Textual support number: 2 CONT
Microbursts result as a strong downflow bursts from a parent cloud and strike the Earth's surface at an angle (usually) off-the-vertical. The air striking the Earth flows out from the centre (called an "outflow") at speeds which depend on the downflow speed and striking angle. As the outflowing air undercuts the surface air, a vertical roll begins to develop that eventually encircles the downflow centre as a horizontal vortex ring. 1, record 1, English, - vortex%20ring
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
Record 1, Main entry term, French
- anneau tourbillonnaire
1, record 1, French, anneau%20tourbillonnaire
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
À mesure que le courant descendant s'intensifie, le flux d'air froid qui en est issu progresse dans l'air ambiant des basses couches, s'enroulant dans un mouvement cyclonique autour du centre de la circulation. À cet endroit, le flux d'air instable est concentré et rejeté en altitude par la convergence de l'air froid. [...] Le maximum de vorticité [...] est à ce moment situé près du sol à la pointe de cette méso-occlusion. J.B. Klemp et R. Rotunno ont montré [...] que ce maximum se produit en fait dans un anneau de 1 à 2 kilomètres de diamètre autour du centre de la circulation. 2, record 1, French, - anneau%20tourbillonnaire
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1988-04-20
Record 2, English
Record 2, Subject field(s)
- Helicopters (Military)
- Aircraft Propulsion Systems
- Aircraft Piloting and Navigation
Record 2, Main entry term, English
- vortex ring 1, record 2, English, vortex%20ring
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record 2, French
Record 2, Domaine(s)
- Hélicoptères (Militaire)
- Propulsion des aéronefs
- Pilotage et navigation aérienne
Record 2, Main entry term, French
- anneau tourbillonnaire
1, record 2, French, anneau%20tourbillonnaire
masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- zone d'anneau tourbillonnaire 2, record 2, French, zone%20d%27anneau%20tourbillonnaire
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
OACI, man. d'instruction 20e partie, 1963, p.60 question 8). 2, record 2, French, - anneau%20tourbillonnaire
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1978-11-03
Record 3, English
Record 3, Subject field(s)
- Hydrology and Hydrography
Record 3, Main entry term, English
- annular eddy 1, record 3, English, annular%20eddy
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record 3, French
Record 3, Domaine(s)
- Hydrologie et hydrographie
Record 3, Main entry term, French
- anneau tourbillonnaire 1, record 3, French, anneau%20tourbillonnaire
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
VOHYP, 16-2, 1978, p. 107. 1, record 3, French, - anneau%20tourbillonnaire
Record 3, Spanish
Record 3, Textual support, Spanish
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