Current activities
I am currently affiliated with the German Aerospace Center (DLR) at the Institute of Atmospheric Physics (IPA) in Oberpfaffenhofen, Germany. In summer 2021, i participate in the CIRRUS-HL aircraft campaign, which employs the German High Alitute and LOng range (HALO) research aircraft to sample cirrus clouds and contrails at mid and high latitudes in Europe. There we want to advance our understanding about the radiative, chemical and climate impact of cirrus clouds, especially in the sensitive Arctic region. Several drivers associated with anthropogenic emissions and climate change affect the occurrence and appearcance of these ice clouds in the upper troposphere and sometimes lowermost stratosphere.
CV
For a comprehensive and concise summary of my activities, please refer to the CV.
Publications
https://orcid.org/0000-0002-5006-2133Ziereis, Helmut, Peter Hoor, Jens-Uwe Grooß, Andreas Zahn, Greta Stratmann, Paul Stock, Michael Lichtenstern, Jens Krause, Vera Bense, Armin Afchine, Christian Rolf, Wolfgang Woiwode, Marleen Braun, Jörn Ungermann, Andreas Marsing, Christiane Voigt, Andreas Engel, Björn-Martin Sinnhuber and Hermann Oelhaf (2022). »Redistribution of total reactive nitrogen in the lowermost Arctic stratosphere during the cold winter 2015/2016«. Atmos. Chem. Phys. 22.5, pp. 3631-3654. DOI: 10.5194/acp-22-3631-2022.
Oelhaf, Hermann, Björn-Martin Sinnhuber, Wolfgang Woiwode, Harald Bönisch, Heiko Bozem, Andreas Engel, Andreas Fix, Felix Friedl-Vallon, Jens-Uwe Grooß, Peter Hoor, Sören Johansson, Tina Jurkat-Witschas, Stefan Kaufmann, Martina Krämer, Jens Krause, Erik Kretschmer, Dominique Lörks, Andreas Marsing, Johannes Orphal, Klaus Pfeilsticker, Michael Pitts, Lamont Poole, Peter Preusse, Markus Rapp, Martin Riese, Christian Rolf, Jörn Ungermann, Christiane Voigt, C. Michael Volk, Martin Wirth, Andreas Zahn and Helmut Ziereis (2019). »POLSTRACC: Airborne Experiment for Studying the Polar Stratosphere in a Changing Climate with the High Altitude and Long Range Research Aircraft (HALO)«. Bull. Amer. Meteor. Soc. 100, pp. 2634-2664. DOI: 10.1175/bams-d-18-0181.1.
Marsing, Andreas, Tina Jurkat-Witschas, Jens-Uwe Grooß, Stefan Kaufmann, Romy Heller, Andreas Engel, Peter Hoor, Jens Krause and Christiane Voigt (2019). »Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016«. Atmos. Chem. Phys. 19.16, pp. 10757-10772. DOI: 10.5194/acp-19-10757-2019.
Johansson, Sören, Wolfgang Woiwode, Michael Höpfner, Felix Friedl-Vallon, Anne Kleinert, Erik Kretschmer, Thomas Latzko, Johannes Orphal, Peter Preusse, Jörn Ungermann, Michelle L. Santee, Tina Jurkat-Witschas, Andreas Marsing, Christiane Voigt, Andreas Giez, Martina Krämer, Christian Rolf, Andreas Zahn, Andreas Engel, Björn-Martin Sinnhuber and Hermann Oelhaf (2018). »Airborne limb imaging measurements of temperature, HNO3, O3, ClONO2, H2O and CFC-12 during the Arctic winter 2015/2016: characterization, in situ validation and comparison to Aura/MLS«. Atmos. Meas. Tech. 11.8, pp. 4737–4756. DOI: 10.5194/amt-11-4737-2018.
Langstaff, Dave, Matt Gunn, G. Neville Greaves, Andreas Marsing and Florian Kargl (2013). »Aerodynamic levitator furnace for measuring thermophysical properties of refractory liquids«. Rev. Sci. Instrum. 84.12, p. 124901. DOI: 10.1063/1.4832115.