During the EGU General Assembly in Wien last May, the Union Session 7 'Eyjafjallajokull - eruption, plume, and consequences' was visited by more than 800 scientists during the evenings Tuesday (orals), Wednesday (posters), and Thursday (orals). This Icelandic vulcanic eruption has caused much delay in air traffic and at the time of the EGU 2010 General Assembly the eruption was still on-going. The convenors Euan Nisbit, Bruce Malamud and Charlotte Hasager worked hard with the EGU to organise this event with very short notice. It was a great pleasure to have the session so well-attended.
The different scientific contributions covered many aspects including the vulcanology, the atmospheric transport modelling and forecasting, and several types of observations. The observations spanned from satellite remote sensing, airborne campaigns, ground-based remote sensing and also collection of the sedimented material. One of the conclusions was that scientists in the many disciplines would benefit from closer collaboration and joint work.
An ACP Special Issue on Atmospheric implications of the volcanic eruptions of Eyjafjallajokull, Iceland 2010, is planned. The Special Issue is dedicated to contributions on the volcanic eruption of Eyjafjallajokull, the evolution and properties of the resulting plume, and their final consequences. The topics range from volcanic issues, source intensities of the plume to descriptions and forecasts of the dynamics and transport; physical and chemical observations encompassing satellite, aircraft, ground-based remote sensing and in-situ data collection. Also the consequences and regulation in air traffic are issues for a full picture of the Eyjafjallajokull eruption and plume, now and in case of future events for the applied societal needs. The deadline for submission is 31 May 2012. It is recommended to submit as soon as possible.
From today authors can submit their contributions by using the online registration form on the ACP website: http://www.atmospheric-chemistry-and-physics.net/submission/manuscript_submission.html
Manuscript preparations and peer-review are to be conducted according to the usual ACP guidelines http://www.atmospheric-chemistry-and-physics.net/submission/general_terms.html
During the registration process it is important that the correct special issue is chosen. The editor call is based on a "First Come - First Served" basis.
In case of questions, do not hesitate to contact one of the co-editors:
Charlotte Bay Hasager (cbha@risoe.dtu.dk),
Wolfram Birmili (birmili@tropos.de),
Gelsamino Pappalardo (pappalardo@imaa.cnr.it),
Fred Prata (fred.prata@nilu.no). | 
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