Airborne observations of cloud properties during their evolution from organized streets to isotropic cloud structures along an Arctic cold-air outbreak

Klingebiel, Marcus; Ehrlich, André; Gryschka, Micha; Risse, Nils; Maherndl, Nina; Schirmacher, Imke; Rosenburg, Sophie; Hörnig, Sabine; Moser, Manuel; Jäkel, Evelyn; Schäfer, Michael; Deneke, Hartwig; Mech, Mario; Voigt, Christiane; Wendisch, Manfred

doi:https://doi.org/10.5194/acp-25-9787-2025

Articles | Volume 25, issue 17

https://doi.org/10.5194/acp-25-9787-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

HALO-(AC)³ – an airborne campaign to study air...

https://doi.org/10.5194/acp-25-9787-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 17

Research article

|

04 Sep 2025

Research article |

| 04 Sep 2025

Airborne observations of cloud properties during their evolution from organized streets to isotropic cloud structures along an Arctic cold-air outbreak

Marcus Klingebiel, André Ehrlich, Micha Gryschka, Nils Risse, Nina Maherndl, Imke Schirmacher, Sophie Rosenburg, Sabine Hörnig, Manuel Moser, Evelyn Jäkel, Michael Schäfer, Hartwig Deneke, Mario Mech, Christiane Voigt, and Manfred Wendisch

Data sets

Radiance fields of clouds and the Arctic surface measured by a digital camera during HALO-(AC)3 Evelyn Jäkel and Manfred Wendisch https://doi.org/10.1594/PANGAEA.967288

Dropsonde measurements from HALO and POLAR 5 during HALO-(AC)3 in 2022 Geet George et al. https://doi.org/10.1594/PANGAEA.968891

Aircraft measurements of broadband irradiances onboard Polar 5 and Polar 6 during the HALO-(AC)3 campaign in spring 2022 Sebastian Becker et al. https://doi.org/10.1594/PANGAEA.963654

Cloud mask and cloud top altitude from the AMALi airborne lidar on Polar 5 during HALO-AC3 in spring 2022 Mario Mech et al. https://doi.org/10.1594/PANGAEA.964985

Microwave brightness temperature measurements during the HALO-AC3 Arctic airborne campaign in early spring 2022 out of Svalbard Mario Mech et al. https://doi.org/10.1594/PANGAEA.964982

DLR in situ cloud measurements during HALO-(AC)3 Arctic airborne campaign Manuel Moser et al. https://doi.org/10.1594/PANGAEA.963247

Short summary

Our study is using aircraft measurements from the HALO-(𝒜𝒞)³ campaign to investigate the transition from organized Arctic cloud street structures to more scattered clouds, which we call isotropic cloud patterns. We show that lower wind speeds cause this transition. In addition, we look at the changes in the cloud coverage, the height of the clouds, the cloud particles, and the radiative properties.