How the recent Anak Krakatau eruption affected the atmospheric structure?
Presenter:
Riccardo Biondi
Università degli Studi di Padova - Dipartimento di Geoscienze
Poster
The Anak Krakatau (Child of Krakatau) volcano is part of the Pacific Ring of Fire, one of the most active volcanic areas of the world. The Anak Krakatau experienced a large explosive eruption, in December 2018, which collapsed the southwestern side of the mountain, generated a tsunami and triggered strong convection and a volcanic thunderstorm lasting for six days.
The eruption injected gas and ash up to the upper troposphere and lower stratosphere regionally affecting the atmospheric structure for a few months.
Despite the complexity of the area, which is often characterized by volcanic eruptions, strong convection and sometimes “touched” by the tropical cyclones rainbands, the Anak Krakatau eruption left a clear signature in the atmospheric structure with large temperature variation around the tropopause layer and very likely overshooting the stratosphere.
I present a detailed analysis of this case study also showing the comparison with other extreme events affecting the same area in the past.
Poster in PDF:
