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low level wind shear alert system [2 records]

Record 1 2001-05-25

English

Subject field(s)
  • Meteorology
  • Airport Runways and Areas
CONT

[The] LLWSAS system ... is marketed under the trade name LOLA, for low level alert. LOLA is a turnkey system consisting of an array of wind sensors, located on the ground, at and around an airport ... The LOLA system is directed by a IBM central control unit with varied communications (VHF/UHF radio or land line) to interrogate the remote sensor sites at least once every 10 seconds. Currently, the two-minute running average of the centre-field site is the reference value from which the shears (at 15-knot threshold value to trigger the alarms) are detected.

Key term(s)
  • LOLA

French

Domaine(s)
  • Météorologie
  • Pistes et aires d'aéroport
CONT

Le LLWSAS est un système de saisie, d'analyse et d'affichage de données exploité en temps réel et commandé par micro-ordinateur. Il recueille des données sur la direction et la vitesse du vent au moyen de six anémomètres; un anémomètre central est implanté près du centre de l'aéroport et cinq anémomètres périphériques sont placés près des zones d'approche et de décollage.

OBS

système d'alerte cisaillement du vent à basse altitude : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes.

Spanish

Save record 1

Record 2 1988-02-04

English

Subject field(s)
  • Air Navigation Aids
OBS

An LLWAS installation can have up to 16 remote measuring sites, where wind direction and strength at low altitude are measured and automatically transmitted to a central control unit in the control tower. There can be up to 12 remote display and alarm units and the information can be passed to pilots in flight. The system continuously tests itself and the validity of its data to prevent display of false data.

French

Domaine(s)
  • Aides à la navigation aérienne

Spanish

Save record 2

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