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Nabro Eruption

Dr. S. Grießbach, Forschungszentrum Jülich, JSC

During the night from 12 to 13 June 2011 a strong eruption of the Nabro volcano in Eritrea started. Instead of volcanic ash this volcano emitted large amounts of sulfur dioxide directly into the stratosphere (16 km and higher). During the following days the sulfur dioxide oxidised to sulfuric acid droplets, which have a residence time of months to years in the stratosphere. The sulfuric acid droplets affect the Earths radiation budget and can have an impact on climate. The animation was created by calculating up to three days forward and backward trajectories for each Envisat MIPAS detection of sulfuric acid droplets.

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