Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics
Item
Title (Dublin Core)
Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics
Description (Dublin Core)
A recently developed and validated bulk microphysics scheme for modelling cirrus clouds (Spichtinger and Gierens, 2009), implemented into the anelastic non-hydrostatic model EULAG is used for investigation of the impact of dynamics on the evolution of an arctic cirrostratus. Sensitivity studies are performed, using variation of large-scale updraughts as well as addition of small-scale temperature fluctuations and wind shear. The results show the importance of sedimentation of ice crystals on cloud evolution. Due to non-linear processes like homogeneous nucleation situations can arise where small changes in the outer parameters have large effects on the resulting cloud structure. In-cloud ice supersaturation is a common feature of all our simulations, and we show that dynamics is as least as important for its appearance than is microphysics.
Creator (Dublin Core)
Spichtinger, P.
Gierens, K. M.
Date (Dublin Core)
2018-01-15
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-9-707-2009
https://acp.copernicus.org/articles/9/707/2009/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
