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DOWN SLOPE WIND [6 records]
Record 1 - internal organization data 2023-01-24
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Climatology
- Ecosystems
Record 1, Main entry term, English
- cold air drainage
1, record 1, English, cold%20air%20drainage
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- cold-air drainage 2, record 1, English, cold%2Dair%20drainage
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Mountainous terrain is well known for the creation of local "frost hollows" due to cold air drainage. The significant temperature anomalies experienced in such regions can have strong impacts on local native plant distributions, as well as horticulture and agriculture... The flowing cold air drains gravitationally down slope..., often at variance to the prevailing synoptic flow above..., although the drainage will be enhanced if it lies in the same direction as the prevailing wind... 3, record 1, English, - cold%20air%20drainage
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Climatologie
- Écosystèmes
Record 1, Main entry term, French
- drainage d'air froid
1, record 1, French, drainage%20d%27air%20froid
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2020-11-19
Record 2, English
Record 2, Subject field(s)
- Atmospheric Physics
Record 2, Main entry term, English
- downslope flow
1, record 2, English, downslope%20flow
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- downslope airflow 2, record 2, English, downslope%20airflow
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A thermally driven wind directed down a mountain slope and usually occurring at night; part of the along-slope wind system. 1, record 2, English, - downslope%20flow
Record 2, Key term(s)
- down-slope flow
- down-slope airflow
Record 2, French
Record 2, Domaine(s)
- Physique de l'atmosphère
Record 2, Main entry term, French
- écoulement descendant
1, record 2, French, %C3%A9coulement%20descendant
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2017-11-23
Record 3, English
Record 3, Subject field(s)
- Skydiving, Paragliding and Hang Gliding
Record 3, Main entry term, English
- launching
1, record 3, English, launching
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- launch 2, record 3, English, launch
correct, noun
- take-off 3, record 3, English, take%2Doff
correct, noun
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Paragliders have no rigid structure and are kept in shape by the internal pressure of air, with the pilot suspended by lines beneath. The pilot is clipped into a harness and oriented in a sitting position for maximum comfort. After laying out the wing and lines, launching is simply a matter of moving down the slope a few steps to tension the lines and allow the wind to inflate the wing and raise it above you. A short run forward to pick up airspeed and you’re airborne! 4, record 3, English, - launching
Record number: 3, Textual support number: 2 CONT
Paraglider pilots launch from gentle hillsides with their gliders already opened for flight; if the glider isn’t flying properly, the launch can be aborted before leaving the ground. Paragliding launches are not as "committing"; if you want to stop your launch, you just stop running and the canopy floats down behind you. The pilot runs down a gentle slope and glides away from the mountain. 2, record 3, English, - launching
Record number: 3, Textual support number: 3 CONT
The take-off, contrary to popular belief, does not involve a leap off a cliff, all you have to do is run a few steps to be airborne. 5, record 3, English, - launching
Record 3, Key term(s)
- take off
- takeoff
Record 3, French
Record 3, Domaine(s)
- Parachutisme, parapente et deltaplane
Record 3, Main entry term, French
- décollage
1, record 3, French, d%C3%A9collage
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Le décollage s'effectue en général dans une pente. Le parapentiste place son aile à terre, bien étalée (en forme de corolle) et face à la pente. Il s'installe dans sa sellette en veillant bien à respecter les vérifications d'usage (points d'accrochages de la sellette, casque, radio et pas de nœuds dans les suspentes). Il faut qu'il y ait une légère brise qui remonte la pente face à lui pour lui faciliter le décollage et que les conditions météorologiques soient adaptées. 2, record 3, French, - d%C3%A9collage
Record number: 3, Textual support number: 2 CONT
Le décollage dépend aussi des conditions aérologiques et de la structure du relief choisi. On ne saute pas, on ne se jette pas, on décolle et un décollage est rapide lorsqu'il y a un peu de vent de face, et nécessite un peu plus de temps et de course d'élan lorsque le vent est faible ou nul. 3, record 3, French, - d%C3%A9collage
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2008-08-07
Record 4, English
Record 4, Subject field(s)
- Atmospheric Physics
- Wind Energy
Record 4, Main entry term, English
- fall wind
1, record 4, English, fall%20wind
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A wind that accelerates as it moves downslope because of its low temperature and greater density. 2, record 4, English, - fall%20wind
Record number: 4, Textual support number: 1 CONT
A fall wind is a larger-scale phenomenon than the individual-slope scale [wind] and is produced by accumulated cold air spilling down a slope or over a mountain range. 2, record 4, English, - fall%20wind
Record 4, French
Record 4, Domaine(s)
- Physique de l'atmosphère
- Énergie éolienne
Record 4, Main entry term, French
- vent de chute
1, record 4, French, vent%20de%20chute
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- vent de chute d'Athos 1, record 4, French, vent%20de%20chute%20d%27Athos
correct, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Phénomène de plus grande envergure que le vent de gravité, comme dans le cas d'un mouvement de l'air froid d'un intérieur élevé vers une côte maritime plus chaude. 1, record 4, French, - vent%20de%20chute
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2007-06-22
Record 5, English
Record 5, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 5, Main entry term, English
- air blast
1, record 5, English, air%20blast
correct, officially approved
Record 5, Abbreviations, English
Record 5, Synonyms, English
- wind blast 2, record 5, English, wind%20blast
correct, officially approved
- airblast 3, record 5, English, airblast
correct
- avalanche wind 4, record 5, English, avalanche%20wind
correct
- shock wave 5, record 5, English, shock%20wave
avoid, see observation
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
The air pressure wave which may precede (or accompany) an avalanche. 6, record 5, English, - air%20blast
Record number: 5, Textual support number: 1 CONT
Destruction from avalanches results both from the avalanche wind (the air pushed ahead of the mass) and from the actual impact of the avalanche material. 7, record 5, English, - air%20blast
Record number: 5, Textual support number: 2 CONT
[Powder snow] avalanches composed of dry snow usually generate a dust cloud as the sliding snow is whirled into the air... Their speed may exceed 200 km/hr.... Under certain circumstances, enough snow crystals are mixed with the air to form an aerosol which behaves as a sharply bounded body of dense gas rushing down the slope ahead of the sliding snow. This wind blast can inflict heavy destruction well beyond the normal bounds of the avalanche track. 8, record 5, English, - air%20blast
Record number: 5, Textual support number: 3 CONT
Some slides, particularly large ones, appear to be preceded by an air blast or pressure wave. Destructive air blasts are not common. However, there are certain paths where the phenomena occurs regularly. When it does occur the air blast may extend about 100 meters beyond a major path. 5, record 5, English, - air%20blast
Record number: 5, Textual support number: 4 CONT
Damage to trees from the avalanche was caused by the air blast. [Example approved by the Avalanche Bulletin Terminology Standardization Committee.] 9, record 5, English, - air%20blast
Record number: 5, Textual support number: 1 OBS
Sometimes reference is made to a shock wave. This is misleading since the air blast is not a true shock wave. 5, record 5, English, - air%20blast
Record number: 5, Textual support number: 2 OBS
The most destructive form [of an avalanche wind is] the avalanche blast. It occurs when an avalanche is stopped abruptly, as in the case of an almost vertical fall into a valley floor. 10, record 5, English, - air%20blast
Record number: 5, Textual support number: 3 OBS
air blast; wind blast: terms officially approved by the Avalanche Bulletin Terminology Standardization Committee. 11, record 5, English, - air%20blast
Record 5, Key term(s)
- airblast
- windblast
Record 5, French
Record 5, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 5, Main entry term, French
- vent d'avalanche
1, record 5, French, vent%20d%27avalanche
correct, masculine noun, officially approved
Record 5, Abbreviations, French
Record 5, Synonyms, French
- souffle de l'avalanche 2, record 5, French, souffle%20de%20l%27avalanche
correct, masculine noun, officially approved
- souffle 2, record 5, French, souffle
correct, masculine noun, officially approved
- vent de l'avalanche 3, record 5, French, vent%20de%20l%27avalanche
correct, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Souffle précédant le front de l'avalanche (en général mixte ou en aérosol). 4, record 5, French, - vent%20d%27avalanche
Record number: 5, Textual support number: 1 CONT
Une avalanche en aérosol est un écoulement turbulent résultant de la suspension de particules de neige dans l'air, il ressemble à un gros nuage de neige se déplaçant à très grande vitesse. Il est précédé d'environ une centaine de mètres par un écoulement d'air (sans entraînement de cristaux) appelé vent ou souffle de l'avalanche. La pression de ce souffle est faible, de l'ordre de 5 kN/m², mais peut être suffisant pour provoquer des dégâts (arbres, toitures, etc.). 4, record 5, French, - vent%20d%27avalanche
Record number: 5, Textual support number: 2 CONT
Le vent d'avalanche a endommagé les arbres. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.] 5, record 5, French, - vent%20d%27avalanche
Record number: 5, Textual support number: 1 OBS
vent d'avalanche; souffle de l'avalanche; souffle : termes uniformisés par le Comité d'uniformisation de la terminologie des bulletins d'avalanche. 6, record 5, French, - vent%20d%27avalanche
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2003-06-20
Record 6, English
Record 6, Subject field(s)
- Atmospheric Physics
- Environmental Studies and Analyses
- Air Pollution
Record 6, Main entry term, English
- downslope wind
1, record 6, English, downslope%20wind
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- down slope wind 2, record 6, English, down%20slope%20wind
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Mountain ranges have some very interesting weather patterns. One of these amazing phenomenons is the valley wind. Valley winds originate on south facing slopes in the northern hemisphere, and north-facing slopes in the southern hemisphere. When the face of the mountain and surrounding air is heated, the density of the air decreases. This results in the air rising to the top of the slope. During night, the process is reversed, and the air turns into a down slope wind. These winds can be quite powerful. 2, record 6, English, - downslope%20wind
Record number: 6, Textual support number: 2 CONT
At night air cooled on the mountain slopes flows down into the valley displacing bottom air which rises and completes the cycle. Downslope or katabatic winds are usually moderate in strength. 1, record 6, English, - downslope%20wind
Record number: 6, Textual support number: 1 OBS
downslope winds: bora, gravity wind, katabatic wind, etc. 3, record 6, English, - downslope%20wind
Record 6, Key term(s)
- down-slope wind
Record 6, French
Record 6, Domaine(s)
- Physique de l'atmosphère
- Études et analyses environnementales
- Pollution de l'air
Record 6, Main entry term, French
- vent descendant
1, record 6, French, vent%20descendant
masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Le vent montant de la vallée ou descendant de la montagne, met [...] à l'épreuve plus d'un joueur. 2, record 6, French, - vent%20descendant
Record number: 6, Textual support number: 2 CONT
Le mistral, il ne faut pas l'oublier; est souvent appelé vent «catabatique», c'est-à-dire vent descendant. 3, record 6, French, - vent%20descendant
Record number: 6, Textual support number: 3 CONT
[...] on distingue plusieurs sortes de vents : vent de mer (sur le littoral), vent de terre, vent ascendant, vent descendant et foehn. 4, record 6, French, - vent%20descendant
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Física de la atmósfera
- Estudios y análisis del medio ambiente
- Contaminación del aire
Record 6, Main entry term, Spanish
- viento descendente
1, record 6, Spanish, viento%20descendente
masculine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
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