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Karlsruhe Institut of Technology

Young Investigator Network

Engler-Bunte-Ring 21
76131 Karlsruhe

Tel. +49 721 608-46184

E-Mail: infoDqe4∂yin kit edu

Das KIT ist seit 2010 als familiengerechte Hochschule zertifiziert.
Prof. Dr. Corinna Hoose

Prof. Dr. Corinna Hoose

Professorin für Theoretische Meterologie
Raum: Deutschland, KIT
Tel.: +49 721 608-23249 bzw. 43587
Fax: +49 721 608-24332
corinna hooseQyz5∂kit edu

Karlsruher Institut für Technologie (KIT)

Campus Nord


Hermann-von-Helmholtz-Platz 1

D-76344 Eggenstein-Leopoldshafen

Aerosol effects on cloud ice, precipitation and climate

Helmholtz-Hochschul-Nachwuchsgruppe von Dr. Corinna Hoose

Aerosol effects on cloud ice, precipitation and climate


Aerosol-cloud interactions are one of the largest factors of uncertainty in future climate projections and simulations of the hydrological cycle, including quantitative precipitation prediction. Many microphysical processes cannot be explicitly resolved in numerical models on regional and global scales, but have to be parameterized. Cloud ice-phase processes, which are particularly important for precipitation formation especially in mid-latitudes, are often treated in a simplistic manner. This is partly due to a lack of physical understanding of these processes. The aim of the Young Investigators Group is to develop and test numerical parameterizations, based on experimental results obtained at IMK-AAF and elsewhere, for models on different scales, to simulate possible aerosol effects on the cloud liquid and ice phase more realistically.


Read more on our homepage.



Nachwuchsgruppe von Dr. Corinna Hoose


Peer-reviewed publications

  • Koch, D., Y. Balkanski, S. E. Bauer, R. C. Easter, S. Ferrachat, S. J. Ghan, C. Hoose, T. Iversen, A. Kirkevåg, J. E. Kristjansson, X. Liu, U. Lohmann, S. Menon, J. Quaas, M. Schulz, Ø. Seland, T. Takemura, and N. Yan (2010):  Soot microphysical effects on liquid clouds, a multi-model investigation. Atmospheric Chemistry and Physics 11, 1051-1064. link
  • Storelvmo, T., C. Hoose and P. Eriksson (2010): Global modeling of mixed-phase clouds - The albedo and lifetime effects of aerosols. Journal of Geophysical Research, doi:10.1029/2010JD014724, in press. pdf
  • Alterskjær, K., J. E. Kristjánsson and C. Hoose (2010): Do anthropogenic aerosols enhance or suppress the surface cloud forcing in the Arctic? Journal of Geophysical Research 115, D22204, doi:10.1029/2010JD014015. link
  • Hoose, C., J. E. Kristjánsson, J.-P. Chen and A. Hazra (2010): A classical-theory-based parameterization of heterogeneous ice nucleation by mineral dust, soot and biological particles in a global climate model. Journal of the Atmospheric Sciences, 67(8) 2483–2503. link
  • Hoose, C., J. E. Kristjánsson and S. M. Burrows (2010): How important is biological ice nucleation in clouds on a global scale? Environmental Research Letters 5, 024009, link.
  • Croft, B., U. Lohmann, R. V. Martin, P. Stier, S. Wurzler, J. Feichter, C. Hoose, U. Heikkilä, A. van Donkelaar, and S. Ferrachat (2009): Influences of in-cloud aerosol scavenging parameterizations on aerosol concentrations and wet deposition in ECHAM5-HAM. Atmospheric Chemistry and Physics 10, 1511-1543.
  • Lohmann, U. and Hoose, C. (2009): Sensitivity studies of different aerosol indirect effects in mixed-phase clouds. Atmospheric Chemistry and Physics 9, 8917-8934.
  • Quaas, J., Y. Ming, S. Menon, T. Takemura, M. Wang, J. E. Penner, A. Gettelman, U. Lohmann, N. Bellouin, O. Boucher, A. M. Sayer, G. E. Thomas, A. McComiskey, G. Feingold, C. Hoose, J. E. Kristjánsson, X. Liu, Y. Balkanski, L. J. Donner, P. A. Ginoux, P. Stier, B. Grandey, J. Feichter, I. Sednev, S. E. Bauer, D. Koch, R. G. Grainger, A. Kirkevåg, T. Iversen, Ø. Seland, R. Easter, S. J. Ghan, P. J. Rasch, H. Morrison, J.-F. Lamarque, M. J. Iacono, S. Kinne, and M. Schulz (2009): Aerosol indirect effects - general circulation model intercomparison and evaluation with satellite data. Atmospheric Chemistry and Physics 9, 8697-8717.
  • Hoose, C., J. E. Kristjánsson, T. Iversen, A. Kirkevåg, Ø. Seland and A. Gettelman (2009): Constraining cloud droplet number concentration in GCMs suppresses the aerosol indirect effect. Geophys. Res. Lett. 36, L12807, doi:10.1029/2009GL038568.
  • Klein, S., McCoy, R., Morrison, H., Ackerman, A., Avramov, A., deBoer, G., Chen, M., Cole, J., DelGenio, A., Falk, M., Foster, M., Fridlind, A., Golaz, J.-C., Hashino, T., Harrington, J., Hoose, C., Khairoutdinov, M., Larson, V., Liu, X., Luo, Y., McFarquhar, G., Menon, S., Neggers, R., Park, S., Poellot, M., von Salzen, K., Schmidt, J., Sednev, I., Shipway, B., Shupe, M., Spangenberg, D., Sud, Y., Turner, D., Veron, D., Walker, G., Wang, Z., Wolf, A., Xie, S., Xu, K.-M., Yang, F. and Zhang, G. (2009): Intercomparison of model simulations of mixed-phase clouds observed during the ARM Mixed-Phase Arctic Cloud Experiment. I: Single layer cloud. Q. J. Roy. Meteor. Soc. 135 (641), 979 - 1002.
  • Morrison, H., McCoy, R. B., Klein, S. A., Xie, S., Luo, Y., Avramov, A., Chen, M., Cole, J. N. S., Falk, M., Foster, M. J., Del Genio, A. D., Harrington, J. Y., Hoose, C., Khairoutdinov, M. F., Larson, V. E., Liu, X., McFarquhar, G. M., Poellot, M. R., von Salzen, K., Shipway, B. J., Shupe, M. D., Sud, Y. C., Turner, D. D., Veron, D. E., Walker, G. K., Wang, Z., Wolf, A. B., Xu, K.-M., Yang, F. and Zhang, G. (2009): Intercomparison of model simulations of mixed-phase clouds observed during the ARM Mixed-Phase Arctic Cloud Experiment. II: Multilayer cloud. Q. J. Roy. Meteor. Soc. 135 (641), 1003 - 1019.
  • Hoose, C., U. Lohmann, R. Bennartz, B. Croft, and G. Lesins (2008): Global simulations of aerosol processing in clouds. Atmospheric Chemistry and Physics, 8, 6939-6963.
  • Hoose, C., U. Lohmann, R. Erdin and I. Tegen (2008): Global Influence of Dust Mineralogical Composition on Heterogeneous Ice Nucleation in Mixed-Phase Clouds. Environmental Research Letters 3, 025003, doi: 10.088/1748-9326/3/2/025003.
  • Hoose, C., U. Lohmann, P. Stier, B. Verheggen and E. Weingartner (2008): Aerosol Processing in Mixed-Phase Clouds in ECHAM5-HAM: Model Description and Comparison to Observations. Journal of Geophysical Research, 113, D07210, doi:10.1029/2007JD009251.
  • Lohmann, U., P. Stier, C. Hoose, S. Ferrachat, S. Kloster, E. Roeckner and J. Zhang (2007): Cloud microphysics and aerosol indirect effects in the global climate model ECHAM5-HAM. Atmospheric Chemistry and Physics, 7, 3425-3446
  • Vogel, B., C. Hoose, H. Vogel and C. Kottmeier (2006): A model of dust transport applied to the Dead Sea Area. Meteorologische Zeitschrift, Volume 15, Number 6, December 2006, pp. 611-624(14)


Other publications

  • Möhler, O. and Hoose, C. (2011): Ocean algae and atmospheric ice. Nature Geoscience 4, 76-77, doi:10.1038/ngeo1075 (News and Views article). link
  • Hoose, C., J. E. Kristjánsson, S. Arabas, R. Boers, H. Pawlowska, V. Puygrenier, H. Siebert, and O. Thouron (2010): Parameterization of in-cloud vertical velocities for cloud droplet activation calculations in coarse-grid models: Analysis of observations and cloud resolving model results. Extended Abstract for the 13th AMS Conference on Atmospheric Radiation, Portland, Oregon. pdf
  • Hoose, C. (2009): Biological ice formation. Nature Geoscience 2, 385-386, doi:10.1038/ngeo530 (News and Views article).
  • Hoose, C., J. E. Kristjánsson, A. Kirkevåg, Ø. Seland, T. Iversen and T. Storelvmo (2008): Sensitivity of cloud droplet number concentration in a GCM to the representation of subgrid-scale vertical velocity. Contribution to EUCAARI annual meeting, Helsinki.
  • Hoose, C. and U. Lohmann (2008): Dust impacts on warm and cold clouds: Insights from global models. Invited contribution to the 3rd International Workshop on Mineral Dust, Leipzig, Germany.
  • Hoose, C. (2008): Aerosol Processing and its Effect on Mixed-Phase Clouds in a Global Climate Model. PhD thesis, ETH Dissertation No. 17648. link
  • Hoose, C. (2004): Numerische Simulationen zur Ausbreitung von Mineralstaub auf der regionalen Skala. Diplomarbeit IMK Karlsruhe. (Diploma thesis, in German.)
  • Hoose, C., B. Vogel, H. Vogel and C. Kottmeier (2004): Numerische Simulationen zur Ausbreitung von Mineralstaub auf der regionalen Skala. Beitrag zur DACH Meteorologen-Tagung, Karlsruhe. (Conference contribution, in German.)