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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

If this upward vertical motion is strong enough and in a sufficiently moist airmass, precipitation results.  1, record 1, English, - moist%20airmass

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

10 : 41pm-noting very warm airmass with freezing level at 16 500 feet and flight-level temperature of only-5°C.  2, record 2, English, - flight%20altitude%20temperature

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

22 h 41 - nous constatons la présence d'une masse d'air très chaud, le niveau de congélation se situant à 16 500 pieds. La température à l'altitude de vol n'est que de -5 °C.  1, record 2, French, - temp%C3%A9rature%20%C3%A0%20l%27altitude%20de%20vol

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

... whirling columns of water droplets that spiral up from a lake or sea [and that] frequently form under clear skies.  3, record 3, English, - fair%20weather%20waterspout

Record number: 3, Textual support number: 1 CONT

Waterspouts form over (or move across) the coastal waters or intracoastal waters ... They are treated as tornadoes over water. There are two type of waterspouts: "fair weather" and "tornadic". Fair weather waterspouts are usually weaker, move slowly, and may not be associated with a thunderstorm. Tornadic waterspouts form within developing thunderstorms, or severe thunderstorms, and move much faster while being more intense.  4, record 3, English, - fair%20weather%20waterspout

Record number: 3, Textual support number: 2 CONT

The most common type of waterspout is a fairweather waterspout, which arises over warm seas, e. g. near Florida. It lasts for only a few minutes. These waterspouts are generally of F0 intensity, with winds of no more than 30 m/s. They typically occur during the developing stage of an airmass thunderstorm, below the main updraft. These thunderstorms are found in weakly sheared environments, so the spin-up must result mainly from vortex stretching and less from vortex tilting.  2, record 3, English, - fair%20weather%20waterspout

Record number: 3, Textual support number: 3 CONT

Fair weather waterspouts only form over water. ... The fair weather waterspouts are much more regular than tornadic waterspouts.  5, record 3, English, - fair%20weather%20waterspout

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

La trombe marine véritable se forme au-dessus de l'eau et n'est pas accompagnée d'un violent orage. Si jamais un orage intense produisant une tornade passe au-dessus d'une masse d'eau, cette tornade présente autant de danger que sur terre. La différence entre la tornade et la trombe marine tient exclusivement aux conditions atmosphériques en présence dans le second cas. Si le temps est frais et nuageux et qu'il y a quelques averses mais pas d'orage comme tel, tout entonnoir ressemblant à une tornade qui pourrait se former au-dessus de l'eau est une trombe marine.  1, record 3, French, - trombe%20marine

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

Air mass having static stability in its lower layers; it is free from convection, has a low degree of turbulence and may have stratiform clouds or fog or no clouds.  3, record 4, English, - stable%20air%20mass

Record number: 4, Textual support number: 1 CONT

Vertical mixing is a function of atmospheric stability. A stable airmass is characterized by poor vertical mixing; an unstable airmass is characterized by good vertical mixing.  4, record 4, English, - stable%20air%20mass

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Masse d'air ayant la stabilité hydrostatique dans ses couches inférieures.  2, record 4, French, - masse%20d%27air%20stable

Record number: 4, Textual support number: 1 OBS

Elle est dénuée de convection; elle a un faible degré de turbulence, et peut avoir des nuages stratiformes ou du brouillard, ou pas de nuages.  2, record 4, French, - masse%20d%27air%20stable

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Masa de aire que tiene estabilidad estática en las capas inferiores: no hay convección, la turbulencia es débil y hay nubes estratiformes, nieblas o cielo despejado.  1, record 4, Spanish, - masa%20de%20aire%20estable

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

Air mass having static instability in its lower layers ...  3, record 5, English, - unstable%20air%20mass

Record number: 5, Textual support number: 1 CONT

If the airmass is unstable, air which is pushed upward by some force will continue upward. An unstable airmass usually contains relatively warm(usually moist) air near the earth's surface and relatively cold(usually dry) air in the mid and upper levels of the atmosphere.  4, record 5, English, - unstable%20air%20mass

Record number: 5, Textual support number: 1 OBS

unstable air mass: ... convective clouds and precipitation occur if its moisture content is sufficiently high.  3, record 5, English, - unstable%20air%20mass

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Masse d'air présentant de l'instabilité hydrostatique dans ses couches inférieures [...]  2, record 5, French, - masse%20d%27air%20instable

Record number: 5, Textual support number: 1 OBS

masse d'air instable : [...] des nuages convectifs et des précipitations se produisent si sa teneur en humidité est suffisamment élevée  2, record 5, French, - masse%20d%27air%20instable

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Masa de aire que presenta inestabilidad hidrostática en las capas inferiores [...]  1, record 5, Spanish, - masa%20de%20aire%20inestable

Record number: 5, Textual support number: 1 OBS

masa de aire inestable: [...] se producen nubes convectivas y precipitaciones si el contenido de humedad es suficientemente alto.  1, record 5, Spanish, - masa%20de%20aire%20inestable

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

Modification, by physical or dynamical processes, of the properties of an air mass such that they become those of a different air mass.  5, record 6, English, - transformation%20of%20an%20air%20mass

Record number: 6, Textual support number: 1 CONT

The summer Arctic boundary layer, with its small diurnal cycle and absence of topography, will be ideal for studying turbulent transport and the interaction between turbulence and atmospheric gravity waves.... the long advection over a homogeneous surface allows a study of airmass transformation from marine to arctic conditions.  2, record 6, English, - transformation%20of%20an%20air%20mass

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Modification, par des processus physiques ou dynamiques, des propriétés d'une masse d'air jusqu'à lui conférer les propriétés caractéristiques d'une autre masse d'air.  2, record 6, French, - transformation%20d%27une%20masse%20d%27air

Record 6,  Textual support,  Spanish

Record number: 6, Textual support number: 1 DEF

Modificación de las características de una masa de aire producida por procesos físicos o dinámicos que le confieren propiedades de otro tipo de masa de aire.  1, record 6, Spanish, - transformaci%C3%B3n%20de%20una%20masa%20de%20aire

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

Measure of the length of the path through the atmosphere to sea-level traversed by light rays from a celestial body, expressed with reference to the path length in the vertical.  3, record 7, English, - optical%20air%20mass

Record number: 7, Textual support number: 1 CONT

The optical airmass at sea level, M₀, is estimated empirically as a function of the solar elevation, [alpha].  2, record 7, English, - optical%20air%20mass

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Mesure de la longueur du trajet parcouru dans l'atmosphère jusqu'au niveau de la mer par les rayons lumineux provenant d'un corps céleste, rapportée à la longueur du trajet vertical.  1, record 7, French, - masse%20d%27air%20optique

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

Medida del trayecto que recorre en la atmósfera la luz emitida por un cuerpo celeste hasta el nivel del mar, expresada con referencia al trayecto vertical.  1, record 7, Spanish, - masa%20%C3%B3ptica%20del%20aire

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

To recover from the microburst, the crew apply maximum power and pitch up toward an angle that can attain 15 degrees. The inertial acceleration(acceleration in reference to the ground, as opposed to acceleration within the airmass) experienced by the pilots, combined with the unstable attitude of the aircraft may cause a dangerous illusion. The pilots may believe that the aircraft has reached a very high excess energy and thus, try to pitch down or reduce the engine power. In reality, the aircraft performance is still low as it penetrates the energy-reducing downdraft and tailwind components of the microburst.  2, record 8, English, - inertial%20acceleration

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Rossby (nombre de) : Quantité sans dimension, utile dans l'étude du mouvement des atmosphères planétaires et égale au rapport de l'accélération inertielle (force d'inertie) à l'accélération de Coriolis due à la rotation de la planète.  2, record 8, French, - acc%C3%A9l%C3%A9ration%20inertielle

Record 8,  Textual support,  Spanish