Monitoring atmospheric composition & climate
 
 
Eruption of the Eyjafjallajökull volcano

MACC is monitoring very carefully the developments around the eruption of the Eyjafjallajökull volcano on Iceland. This page provides daily-updated model simulations from the MACC global system as well as the regional plume forecasts of some of our partners. There is also information about available satellite observations as well as ground-based observations of the volcanic ash plume. For formal volcanic ash plume advisories we refer to the London Volcanic Ash Advisory Centre.

Daily Global MACC plume forecasts

MACC plume forecast

 
The global MACC system produces daily simulations of an SO2-like tracer to reflect the extent of the volcanic ash plume. Output is available at hourly intervals. Both current and past simulations can be accessed.
 

Regional plume forecasts

EURAD forecast

  FMI plume
The University of Koeln, a partner in MACC, produces daily regional forecasts of the volcanic ash plume   The Finnish Meteorological Institute, a partner in MACC, produces daily regional forecasts of the volcanic ash plume with their SILAM model.
     

EMEP forecast

   
The Norwegian Meteorologisk Institutt, a partner in MACC, also produces daily regional forecasts of the volcanic ash plume.
   

Observations

MACC does not carry out observations itself, but tries to optimally combine its modelling systems with the available observations from satellites, aircraft, and ground-based networks. At the moment of the eruption the only observations in the MACC pre-operational system that showed at least some of the ash plume were the aerosol optical depth (AOD) retrievals from the MODIS instrument. However, MACC is now looking at all other observations that provide information on the extent of the plume over time to assess the situation retrospectively.