idw – Informationsdienst Wissenschaft
Nachrichten, Termine, Experten
Nachrichten, Termine, Experten
Lidar-Messung vom 16. April 2010. Die Grafik zeigt deutlich wie die Aschewolke des Eyjafjallajökulls über Leipzig hinweg zieht. Zu sehen sind in rot zwei Schichten in ca. 5000 und in ca. 3000 Meter Höhe. Die unterste Schicht enthielt Vulkanasche mit einer Konzentration bis zu 800 Mikrogramm pro Kubikmeter Luft. Zum Vergleich: Die Aschewolke des isländischen Vulkans Grimsvötn erreichte am 25. Mai 2011 lediglich 50 Mikrogramm Asche pro Kubikmeter. Für Flugverbote gilt ein Grenzwert von 2000 Mikrogramm pro Kubikmeter.
Grafik: Patric Seifert/IfT
(239 KB, 1878 x 856 pixels)
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