Eruption of volcano Eyjafjalla 2010
Dispersion of the dust cloud over Europe
Episode: Wed 14 Apr 00:00 UTC - Wed 26 May 23:00 UTC
ERROR: Content Element with uid "27765" and type "media" has no rendering definition!
These movies try to illustrate the dispersion of mineral dust particles (representing the particle components in the volcanic ash cloud) over Europe at 3 and 5 km height, respectively. The emitted amount is estimated, while assuming a permanent activity since April 14, 05:00 UTC. Injection height and absolute emissions are estimated with the PLUMERIA-Model and according to VAAC issued advisories .
Observations are presently being collected in the frame of the MACC project for validation of the simulations. Fig. 1 displays exceptionally high values of SO2 and number density of particles with a diameter of 10 nm or more during afternoon-evening hours of April 17 and 19 on the Zugspitze (47°25' N, 10°59' E, southern German alpine border). Our simulation reproduces these peaks, showing a temporally corresponding first filament hit and a second maximum by recoiling aged ash clouds, both at times of observed peaks.
Fig.1: Measurements of SO2 mass mixing ratio and number concentrations of particles at Schneefernerhaus, Zugspitze (Courtesy of Hohenpeissenberg Observatory of the German Weather Service (DWD))
Contact for MACC-Data: Anja Werner
Contact for data from Zugspitze: Stefan Gilge
The simulations are produced at the Rhenish Institute for Environmental Research (RIU) in cooperation with Research Centre Jülich.
Elmar Friese1, Lars Nieradzik1,2 , Achim Strunk1 und Hendrik Elbern1,2
1 Rheinisches Institut für Umweltforschung an der Universität zu Köln
2 ICG-2 Forschungszentrum Jülich