HALO-(AC)3 – an airborne campaign to study air mass transformations during warm-air intrusions and cold-air outbreaks
HALO-(AC)3 – an airborne campaign to study air mass transformations during warm-air intrusions and cold-air outbreaks
Editor(s): ACP co-editors | Coordinators: Martina Krämer and Paul Zieger | Co-organizers: Manfred Wendisch and Susanne Crewell
The purpose of the Special Issue is to publish main results from the airborne field campaign HALO-(AC)3 studying warm-air intrusions and cold-air outbreaks and corresponding air mass transformations. HALO-(AC)3 took place in the area around Svalbard in March and April 2022. The campaign is embedded into a Transregional Collaborative Research Centre ( http://www.ac3-tr.de/) that investigates causes and consequences of the currently ongoing dramatic climate changes in the Arctic.

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03 May 2024
How does riming influence the observed spatial variability of ice water in mixed-phase clouds?
Nina Maherndl, Manuel Moser, Imke Schirmacher, Aaron Bansemer, Johannes Lucke, Christiane Voigt, and Maximilian Maahn
EGUsphere, https://doi.org/10.5194/egusphere-2024-1214,https://doi.org/10.5194/egusphere-2024-1214, 2024
Preprint under review for ACP (discussion: open, 0 comments)
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02 Apr 2024
Thermodynamic and cloud evolution in a cold-air outbreak during HALO-(AC)3: quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses
Benjamin Kirbus, Imke Schirmacher, Marcus Klingebiel, Michael Schäfer, André Ehrlich, Nils Slättberg, Johannes Lucke, Manuel Moser, Hanno Müller, and Manfred Wendisch
Atmos. Chem. Phys., 24, 3883–3904, https://doi.org/10.5194/acp-24-3883-2024,https://doi.org/10.5194/acp-24-3883-2024, 2024
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02 Apr 2024
Clouds and precipitation in the initial phase of marine cold air outbreaks as observed by airborne remote sensing
Imke Schirmacher, Sabrina Schnitt, Marcus Klingebiel, Nina Maherndl, Benjamin Kirbus, André Ehrlich, Mario Mech, and Susanne Crewell
EGUsphere, https://doi.org/10.5194/egusphere-2024-850,https://doi.org/10.5194/egusphere-2024-850, 2024
Preprint under review for ACP (discussion: open, 0 comments)
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26 Mar 2024
Overview: Quasi-Lagrangian observations of Arctic air mass transformations – Introduction and initial results of the HALO–(AC)3 aircraft campaign
Manfred Wendisch, Susanne Crewell, André Ehrlich, Andreas Herber, Benjamin Kirbus, Christof Lüpkes, Mario Mech, Steven J. Abel, Elisa F. Akansu, Felix Ament, Clémantyne Aubry, Sebastian Becker, Stephan Borrmann, Heiko Bozem, Marlen Brückner, Hans-Christian Clemen, Sandro Dahlke, Georgios Dekoutsidis, Julien Delanoë, Elena De La Torre Castro, Henning Dorff, Regis Dupuy, Oliver Eppers, Florian Ewald, Geet George, Irina V. Gorodetskaya, Sarah Grawe, Silke Groß, Jörg Hartmann, Silvia Henning, Lutz Hirsch, Evelyn Jäkel, Philipp Joppe, Olivier Jourdan, Zsofia Jurányi, Michail Karalis, Mona Kellermann, Marcus Klingebiel, Michael Lonardi, Johannes Lucke, Anna Luebke, Maximilian Maahn, Nina Maherndl, Marion Maturilli, Bernhard Mayer, Johanna Mayer, Stephan Mertes, Janosch Michaelis, Michel Michalkov, Guillaume Mioche, Manuel Moser, Hanno Müller, Roel Neggers, Davide Ori, Daria Paul, Fiona Paulus, Christian Pilz, Felix Pithan, Mira Pöhlker, Veronika Pörtge, Maximilian Ringel, Nils Risse, Gregory C. Roberts, Sophie Rosenburg, Johannes Röttenbacher, Janna Rückert, Michael Schäfer, Jonas Schäfer, Vera Schemannn, Imke Schirmacher, Jörg Schmidt, Sebastian Schmidt, Johannes Schneider, Sabrina Schnitt, Anja Schwarz, Holger Siebert, Harald Sodemann, Tim Sperzel, Gunnar Spreen, Bjorn Stevens, Frank Stratmann, Gunilla Svensson, Christian Tatzelt, Thomas Tuch, Timo Vihma, Christiane Voigt, Lea Volkmer, Andreas Walbröl, Anna Weber, Birgit Wehner, Bruno Wetzel, Martin Wirth, and Tobias Zinner
EGUsphere, https://doi.org/10.5194/egusphere-2024-783,https://doi.org/10.5194/egusphere-2024-783, 2024
Preprint under review for ACP (discussion: open, 1 comment)
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21 Feb 2024
Evaluating the Representation of Arctic Cirrus Solar Radiative Effects in the IFS with Airborne Measurements
Johannes Röttenbacher, André Ehrlich, Hanno Müller, Florian Ewald, Anna E. Luebke, Benjamin Kirbus, Robin J. Hogan, and Manfred Wendisch
EGUsphere, https://doi.org/10.5194/egusphere-2024-281,https://doi.org/10.5194/egusphere-2024-281, 2024
Revised manuscript under review for ACP (discussion: final response, 4 comments)
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14 Feb 2024
Tethered balloon-borne observations of thermal-infrared irradiance and cooling rate profiles in the Arctic atmospheric boundary layer
Michael Lonardi, Elisa F. Akansu, André Ehrlich, Mauro Mazzola, Christian Pilz, Matthew D. Shupe, Holger Siebert, and Manfred Wendisch
Atmos. Chem. Phys., 24, 1961–1978, https://doi.org/10.5194/acp-24-1961-2024,https://doi.org/10.5194/acp-24-1961-2024, 2024
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06 Dec 2023
The effects of warm air intrusions in the high arctic on cirrus clouds
Georgios Dekoutsidis, Martin Wirth, and Silke Groß
EGUsphere, https://doi.org/10.5194/egusphere-2023-2708,https://doi.org/10.5194/egusphere-2023-2708, 2023
Revised manuscript accepted for ACP (discussion: final response, 4 comments)
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11 Sep 2023
Assessing Arctic low-level clouds and precipitation from above – a radar perspective
Imke Schirmacher, Pavlos Kollias, Katia Lamer, Mario Mech, Lukas Pfitzenmaier, Manfred Wendisch, and Susanne Crewell
Atmos. Meas. Tech., 16, 4081–4100, https://doi.org/10.5194/amt-16-4081-2023,https://doi.org/10.5194/amt-16-4081-2023, 2023
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