CIRRUS-HL

Cirrus in High Latitudes

June/July 2021

CIRRUS-HL is a DFG-funded HALO mission with the objective to study high latitude cirrus clouds. The mission is coordinated by Prof. C. Voigt (DLR/JGU Mainz).

The mission was conducted in June/July 2021 out of Oberpfaffenhofen, Germany. Although the schedule had to be modified several times due to the COVID-19 pandemic situation, the mission was very successful with 24 flights (2 test flights and 22 scientific flights).

Instrument:
ALABAMA

Involved staff of research group Schneider:
H..C. Clemen, J. Schneider

HALO after a night landing under a full moon. (c) J. Schneider

HALO after a night landing under a full moon. (c) J. Schneider

HALO on the return after a scientific flight. (c) J. Schneider

HALO on the return after a scientific flight. (c) J. Schneider

Cooperation:
C. Voigt, T. Jurkat-Witschas, L. Bugliaro, S. Kaufmann, L. Tomsche, M. Heckl, E. de la Torre, V. Hahn, M. Moser, J. Lucke, R. Märkl, M. Papke, J. Mayer, Z. Wang, R. Dischl, DLR-IPA/JGU Mainz
A. Fix, S. Gross, DLR-IPA
D. Sauer, C. Heckl, J. Wolf, DLR-IPA
T. Klausner, H. Ziereis, DLR-IPA
B. Mayer, T. Zinner, V. Pörtge, A. Weber, L. Forster, C. Emde, LMU Munich
A. Ehrlich, U Leipzig
S. Mertes, F. Stratmann, S Grawe, TROPOS Leipzig
M. Krämer, FJZ Julich
E. Järvinen, M. Schnaiter, KIT

Results:

Jurkat-Witschas, T., Voigt, C., Groß, S., Kaufmann, S., Sauer, D., De la Torre Castro, E., Krämer, M., Schäfler, A., Afchine, A., Attinger, R., Bartolome Garcia, I., Beer, C. G., Bugliaro, L., Clemen, H.-C., Dekoutsidis, G., Ehrlich, A., Grawe, S., Hahn, V., Hendricks, J., Järvinen, E., Klimach, T., Krüger, K., Krüger, O., Lucke, J., Luebke, A. E., Marsing, A., Mayer, B., Mayer, J., Mertes, S., Milenko, R.-Z., Moser, M., Müller, H., Nenakhov, V., Pöhlker, M., Pöschl, U., Pörtge, V., Rautenhaus, M., Righi, M., Röttenbacher, J., Schaefer, J., Schnaiter, M., Schneider, J., Schumann, U., Spelten, N., Stratmann, F., Tomsche, L., Wagner, S., Wang, Z., Weber, A., Wendisch, M., Wernli, H., Wetzel, B., Wirth, M., Zahn, A., Ziereis, H., and Zöger, M.: CIRRUS-HL: Picturing High- and Midlatitude Summer Cirrus and Contrail Cirrus above Europe with Airborne Measurements aboard the Research Aircraft HALO, Bulletin of the American Meteorological Society, 106, E2300-E2327, https://doi.org/10.1175/BAMS-D-23-0270.1, 2025.