Volcanic Ash Advisory Centre (VAAC)
The London VAAC is an International Civil Aviation Organization (ICAO) designated centre, responsible for issuing advisories for volcanic eruptions originating in Iceland and the north-eastern corner of the North Atlantic.
The London VAAC is one of 9 Volcanic Ash Advisory Centres worldwide, and has specialist forecasters who produce volcanic ash advisories and guidance products using a combination of volcano data; satellite-based, ground-based and aircraft observations; weather forecast models and dispersion models