Greifswald 2024 – wissenschaftliches Programm
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UP: Fachverband Umweltphysik
UP 1: Atmospheric Trace Gases and Aerosols
UP 1.4: Vortrag
Montag, 26. Februar 2024, 12:00–12:15, ELP 6: HS 4
New results from the joint research project VolImpact — •Christian von Savigny1, Claudia Timmreck2, Ali Hoshyaripour3, Akos Horvath4, Alexei Rozanov5, John Burrows5, Ulrike Niemeier2, Felix Wrana1, Anna Lange1, Corinna Hoose3, Johannes Quaas6, Sandra Wallis1, Hauke Schmidt2, and Christopher Kadow7 — 1Institut für Physik, Universität Greifswald — 2MPI für Meteorologie, Hamburg — 3Institut für Meteorologie und Klimaforschung, KIT — 4Institut für Meteorologie, Universität Hamburg — 5Institut für Umweltphysik, Universität Bremen — 6Institut für Meteorologie, Universität Leipzig — 7DKRZ, Hamburg
Volcanic eruptions are one of the most important natural drivers of climate change on time scales from a few years up to a decade. In the DFG funded Research Unit VolImpact we investigate relevant aspects of volcanic eruptions on the atmosphere and climate in five projects, i.e. the initial development of volcanic plumes on time scales from hours to a few days, the evolution of volcanic aerosol layers in the stratosphere, interactions of volcanic aerosols and tropospheric clouds, dynamic and thermal effects of volcanic eruptions on the middle atmosphere as well as volcanic effects on the hydrological cycle. After a short overview of the VolImpact project, this talk will focus on recent results from the second phase of the VolImpact project, including results on the unusual eruption of Hunga-Tonga Hunga Ha'apai in January 2022, satellite remote sensing of microphysical parameters of stratospheric aerosols, as well as unusual optical phenomena in the atmosphere.
Keywords: Volcanic effects on atmosphere and climate; Stratospheric aerosols; Sky colour and twilight effects