TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Ground-based weather radars emerged during World War II and have since been used to observe precipitation, mostly over land. Ground-based radars send out pulses of microwave energy in narrow beams that scan in a circular pattern. When the microwave pulse encounters precipitation particles in the atmosphere, the energy is scattered in all directions, sending some energy back to the radar. These measurements are used to estimate intensity, altitude, precipitation type(e. g., rain, snow, hail), and motion. Obtaining continuous measurements of precipitation from ground-based systems(e. g., from rain gauges and radar systems) presents a challenge due to large gaps between monitoring sites on land and huge gaps over the ocean.  1, fiche 1, Anglais, - ground%2Dbased%20weather%20radar

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

An inflatable sphere released at apogee from a sounding rocket.  4, fiche 2, Anglais, - ROBIN%20sphere

Record number: 2, Textual support number: 1 CONT

robin sphere. ... The sphere is inflated by evaporation of a contained liquid on release. A corner reflector is ejected as the sphere inflates, permitting track during descent by a precision radar.  4, fiche 2, Anglais, - ROBIN%20sphere

Record number: 2, Textual support number: 2 CONT

The PWN-12A is another sounding rocket using... a dart with a ROBIN(Rocket Balloon Instrument) Inflatable Falling Sphere payload. At an apogee of about 115 km(70 miles), the dart releases a... metalized mylar balloon... While it is slowly descending back to earth, the balloon is tracked by a high-precision radar... on the ground. Minimum tracking altitude is about 30 km(18 miles), where the ambient pressure will cause the balloon to collapse. Using the balloon's known mass and volume, the radar track can be used to calculate atmospheric data like wind speed/direction and air density.  2, fiche 2, Anglais, - ROBIN%20sphere

Record number: 2, Textual support number: 3 CONT

The other type of meteorological payload that can be used on a meteorological rocket consists of a falling ROBIN sphere that is used when probing the atmosphere to over 100 km altitude. These altitudes are above the normal operating levels for the thermistors aboard the rocketsonde. ... This ROBIN sphere is a spherical shaped balloon constructed of a thin (0.0001 mm thick) radar-reflective mylar material that is inflated with a small charge of inert gas to a known mass and volume. The dart containing the sphere typically reaches an altitude of 115 km where the sphere is deployed and inflated. When the sphere is inflated to super-pressure of approximately 10-12 mb, the sphere will reach a 1 meter (3.3. ft) diameter. When the balloon descends to an altitude of approximately 30 km, the air pressure outside the sphere will become greater than that inside, causing the sphere to collapse.  1, fiche 2, Anglais, - ROBIN%20sphere

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 OBS

catasphère : Dispositif gonflé après avoir été éjecté d'une fusée à haute altitude; ses mouvements sont suivis au cours de sa chute pour obtenir des mesures de la densité de l'air et des vents en altitude.  2, fiche 2, Français, - catasph%C3%A8re%20ROBIN

Fiche 2,  Justifications,  Espagnol

Record number: 2, Textual support number: 1 OBS

esfera en caída libre: Dispositivo que se infla después de ser expulsado de un cohete en la atmósfera superior, obteniéndose medidas de la densidad y de los vientos en las capas superiores al seguir sus movimientos durante su caída libre hacia la Tierra.  1, fiche 2, Espagnol, - ROBIN

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 DEF

A sudden externally imposed or undesired disturbance to flightpath, e.g. by violent gust.  3, fiche 3, Anglais, - in%2Dflight%20upset

Record number: 3, Textual support number: 1 CONT

... an Airbus A300-600, N90070, operated by American Airlines as flight 903, experienced an in-flight upset at an altitude of 16, 000 feet near West Palm Beach, Florida. During the upset, the stall warning system activated, the airplane rolled to extreme bank angles left and right, and the rudder was moved rapidly back and forth to its in-flight limits. During the event, the airplane was stalled several times and rapidly descended more than 3, 000 feet. One crew member sustained serious injuries, and the airplane received minor damage.  5, fiche 3, Anglais, - in%2Dflight%20upset

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 DEF

Toute situation au cours de laquelle il y a perte de maîtrise en vol alors que l'aéronef est utilisé en dehors de son domaine de vol approuvé.  2, fiche 3, Français, - perte%20de%20contr%C3%B4le

Record number: 3, Textual support number: 1 CONT

[...] les accidents liés à l'ATM incluent plus spécifiquement les cas de collision entre aéronefs, de collision entre des aéronefs et des obstacles, d'impact sans perte de contrôle et de perte de contrôle en vol due aux conditions météorologiques et aux turbulences de sillage.  3, fiche 3, Français, - perte%20de%20contr%C3%B4le

Fiche 3,  Justifications,  Espagnol