Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 18, issue 18
Articles | Volume 18, issue 18
https://doi.org/10.5194/gmd-18-6117-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gmd-18-6117-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 18
Development and technical paper
 | 
18 Sep 2025
Development and technical paper |  | 18 Sep 2025

A new parameterisation for homogeneous ice nucleation driven by highly variable dynamical forcings

Alena Kosareva, Stamen Dolaptchiev, Peter Spichtinger, and Ulrich Achatz

Related authors

On the impact of ice formation processes and sedimentation on cirrus origin classification in warm conveyor belt outflow
Tim Lüttmer, Annette Miltenberger, and Peter Spichtinger
Atmos. Chem. Phys., 25, 10245–10265, https://doi.org/10.5194/acp-25-10245-2025,https://doi.org/10.5194/acp-25-10245-2025, 2025
Short summary
Fractal Characteristics of Ice-Supersaturated Regions in the Tropopause Region of the northern midlatitudes
Helena Zoe Schuh, Philipp Reutter, Stefan Niebler, and Peter Spichtinger
EGUsphere, https://doi.org/10.5194/egusphere-2025-2498,https://doi.org/10.5194/egusphere-2025-2498, 2025
Short summary
The Frosty Frontier: Redefining the Tropopause as a transport barrier using the Relative Humidity over Ice
Philipp Reutter and Peter Spichtinger
EGUsphere, https://doi.org/10.5194/egusphere-2025-2474,https://doi.org/10.5194/egusphere-2025-2474, 2025
Short summary
Investigating ice formation pathways using a novel two-moment multi-class cloud microphysics scheme
Tim Lüttmer, Peter Spichtinger, and Axel Seifert
Atmos. Chem. Phys., 25, 4505–4529, https://doi.org/10.5194/acp-25-4505-2025,https://doi.org/10.5194/acp-25-4505-2025, 2025
Short summary
Relative humidity over ice as a key variable for Northern Hemisphere midlatitude tropopause inversion layers
Daniel Köhler, Philipp Reutter, and Peter Spichtinger
Atmos. Chem. Phys., 24, 10055–10072, https://doi.org/10.5194/acp-24-10055-2024,https://doi.org/10.5194/acp-24-10055-2024, 2024
Short summary
More articles (6)

Cited articles

Achatz, U., Ribstein, B., Senf, F., and Klein, R.: The interaction between synoptic-scale balanced flow and a finite-amplitude mesoscale wave field throughout all atmospheric layers: weak and moderately strong stratification, Q. J. Roy. Meteor. Soc., 143, 342–361, https://doi.org/10.1002/qj.2926, 2017. a
Achatz, U., Kim, Y.-H., and Voelker, G. S.: Multi-scale dynamics of the interaction between waves and mean flows: From nonlinear WKB theory to gravity-wave parameterizations in weather and climate models, J. Math. Phys., 64, 111101, https://doi.org/10.1063/5.0165180, 2023. a, b, c
Atlas, R. and Bretherton, C. S.: Aircraft observations of gravity wave activity and turbulence in the tropical tropopause layer: prevalence, influence on cirrus clouds, and comparison with global storm-resolving models, Atmos. Chem. Phys., 23, 4009–4030, https://doi.org/10.5194/acp-23-4009-2023, 2023. a
Barahona, D. and Nenes, A.: Parameterization of cirrus cloud formation in large-scale models: Homogeneous nucleation, J. Geophys. Res.-Atmos., 113, D11211, https://doi.org/10.1029/2007JD009355, 2008. a
Baumgartner, M. and Spichtinger, P.: Homogeneous nucleation from an asymptotic point of view, Theor. Comp. Fluid Dyn., 33, 83–106, https://doi.org/10.1007/s00162-019-00484-0, 2019. a, b, c, d, e, f
More articles (37)
Download
Short summary
This study improves how we predict ice formation in clouds by accounting for variable ice sizes and different weather conditions. Using simulations, we developed a more accurate method that works efficiently, making it suitable for application in weather and climate prediction models. The new approach is numerically verified and provides precise predictions of ice formation events and reliable estimates of key parameters.
Read more
Share
Special issue
The tropopause region in a changing atmosphere (TPChange)...