Articles | Volume 24, issue 10
https://doi.org/10.5194/acp-24-5971-2024
https://doi.org/10.5194/acp-24-5971-2024
Research article
 | 
24 May 2024
Research article |  | 24 May 2024

The effects of warm-air intrusions in the high Arctic on cirrus clouds

Georgios Dekoutsidis, Martin Wirth, and Silke Groß

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Cited articles

Ali, S. M. and Pithan, F.: Following moist intrusions into the Arctic using SHEBA observations in a Lagrangian perspective, Q. J. Roy. Meteor. Soc., 146, 3522–3533, https://doi.org/10.1002/qj.3859, 2020. 
Beer, C. G., Hendricks, J., and Righi, M.: A global climatology of ice-nucleating particles under cirrus conditions derived from model simulations with MADE3 in EMAC, Atmos. Chem. Phys., 22, 15887–15907, https://doi.org/10.5194/acp-22-15887-2022, 2022. 
Binder, H., Boettcher, M., Grams, C. M., Joos, H., Pfahl, S., and Wernli, H.: Exceptional Air Mass Transport and Dynamical Drivers of an Extreme Wintertime Arctic Warm Event, Geophys. Res. Lett., 44, 12028–12036, https://doi.org/10.1002/2017GL075841, 2017. 
Bossioli, E., Sotiropoulou, G., Methymaki, G., and Tombrou, M.: Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties, J. Geophys. Res.-Atmos., 126, e2020JD033291, https://doi.org/10.1029/2020JD033291, 2021. 
Campbell, J. R., Dolinar, E. K., Lolli, S., Fochesatto, G. J., Gu, Y., Lewis, J. R., Marquis, J. W., McHardy, T. M., Ryglicki, D. R., and Welton, E. J.: Cirrus Cloud Top-of-the-Atmosphere Net Daytime Forcing in the Alaskan Subarctic from Ground-Based MPLNET Monitoring, J. Appl. Meteorol. Clim., 60, 51–63, https://doi.org/10.1175/JAMC-D-20-0077.1, 2021. 
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Short summary
For decades the earth's temperature has been rising. The Arctic regions are warming faster. Cirrus clouds can contribute to this phenomenon. During warm-air intrusions, air masses are transported into the Arctic from the mid-latitudes. The HALO-(AC)3 campaign took place to measure cirrus during intrusion events and under normal conditions. We study the two cloud types based on these measurements and find differences in their geometry, relative humidity distribution and vertical structure.
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