Articles | Volume 22, issue 13
https://doi.org/10.5194/acp-22-8819-2022
https://doi.org/10.5194/acp-22-8819-2022
Research article
 | 
08 Jul 2022
Research article |  | 08 Jul 2022

Contrail formation within cirrus: ICON-LEM simulations of the impact of cirrus cloud properties on contrail formation

Pooja Verma and Ulrike Burkhardt

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Cited articles

Baldauf, M. and Brdar, S.: 3D diffusion in terrain-following coordinates: testing and stability of horizontally explicit, vertically implicit discretizations, Q. J. Roy. Meteorol. Soc., 142, 2087–2101, https://doi.org/10.1002/qj.2805, 2016. 
Bickel, M., Ponater, M., Bock, L., Burkhardt, U., and Reineke, S.: Estimating the Effective Radiative Forcing of Contrail Cirrus, J. Clim., 33, 1991–2005, https://doi.org/10.1175/jcli-d-19-0467.1, 2020. 
Bier, A. and Burkhardt, U.: Variability in Contrail Ice Nucleation and Its Dependence on Soot Number Emissions, J. Geophys. Res.-Atmos., 124, 3384–3400, https://doi.org/10.1029/2018jd029155, 2019. 
Bier, A., Burkhardt, U., and Bock, L.: Synoptic Control of Contrail Cirrus Life Cycles and Their Modification Due to Reduced Soot Number Emissions, J. Geophys. Res.-Atmos., 122, 11584–11603, https://doi.org/10.1002/2017jd027011, 2017. 
Bier, A., Unterstrasser, S., and Vancassel, X.: Box model trajectory studies of contrail formation using a particle-based cloud microphysics scheme, Atmos. Chem. Phys., 22, 823–845, https://doi.org/10.5194/acp-22-823-2022, 2022. 
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Short summary
This paper investigates contrail ice formation within cirrus and the impact of natural cirrus on the contrail ice formation in the high-resolution ICON-LEM simulations over Germany. Contrail formation often leads to increases in cirrus ice crystal number concentration by a few orders of magnitude. Contrail formation is affected by pre-existing cirrus, leading to changes in contrail formation conditions and ice nucleation rates that can be significant in optically thick cirrus.
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