volcanic ash advisory center


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volcanic ash advisory center (VAAC)

A meteorological center designated by regional air navigation agreement to provide advisory information to meteorological watch offices, area control centers, flight information centers, world area forecast centers, relevant regional area forecast centers, and international OPMET data banks regarding the lateral and vertical extent and forecast movement of volcanic ash in the atmosphere following volcanic eruptions (ICAO).
References in periodicals archive ?
Beyond the potential for a major accident linked to engine failures, volcanic ash can be a considerable threat for other reasons," according to the Volcanic Ash Advisory Center (VAAC)
Tristan King, a meteorologist with the Volcanic Ash Advisory Center in Darwin, Australia, said on Monday that if the ash stays on its current course (and doesn't dissipate) it could eventually disrupt air traffic in Sydney, Melbourne, and the country's capital, Canberra.
Airlines get up-to-date information about volcanic eruptions and ash plumes from a network of nine Volcanic Ash Advisory Centers (VAACs) in various countries, where government-funded scientists track the altitudes and positions of ash clouds just as air-traffic controllers keep tabs on all the jets in their areas.