International Airways Volcano Watch
|Term||International Airways Volcano Watch|
Volcanic Ash Advisory Centre (VAAC)
International arrangements for monitoring and providing warnings to aircraft of volcanic ash in the atmosphere.
ICAO, Official definition, Definition added to An 3 by Amdt 71 (5/11/1998) and modified by Amdt 72 to An 3,14th ed (1/11/2001).
The IAVW is based on the cooperation of aviation and non-aviation operational units using information derived from observing sources and networks that are provided by States. The watch is coordinated by ICAO with the cooperation of other concerned international organizations.