Bonadonna, C.; Folch, A.; Loughlin, S.; Puempel, H.. 2011 Report on the IAVCEI-WMO workshop on Ash Dispersal Forecast and Civil Aviation. IUGG Newsletter, 11 (6). 6-7. (Unpublished)
The regulatory response to the 14 April 2010 Eyjafjallajökull eruption (Iceland) resulted in severe
disruption to air traffic. By 21 April, the UK Civil Aviation Authority (CAA) and Eurocontrol had
pioneered a new way to manage the crisis based on ash concentration thresholds defined by engine
manufacturers. Both the initial zero ash tolerance approach by ICAO and the new ash concentration
thresholds, used by the UK MetOffice and currently under discussion within ICAO, require robust
ash dispersal forecasting based on the combination of Numerical Weather Prediction (NWP),
Volcanic Ash Transport and Dispersal Models (VATDM) and ash cloud data acquisition.
Downloads per month over past year
 |