In Earth’s atmosphere, cold clouds exist as cirrus clouds in the upper troposphere, polar stratospheric clouds in the cold wintertime polar stratosphere, and noctilucent clouds in the summer mesopause region. The life cycles of these clouds and their roles in atmospheric chemistry and climate are largely influenced by atmospheric dynamics, but their formation very much depends on aerosol microphysical processes like deliquescence, efflorescence, homogeneous freezing, or heterogeneous ice nucleation. A detailed understanding of these processes and their representation in cloud and climate models is still lacking. This session welcomes contributions from laboratory experiments elucidating cold cloud microphysics, modeling studies developing and applying microphysics parameterizations, and in situ and remote sensing measurements investigating cold cloud microphysics and providing data for constraining model parameterizations of cold cloud microphysics.

- Indicates paper has been withdrawn from meeting

- Indicates an Award Winner