Modelling of cirrus clouds – Part 1a: Model description and validation
By Peter Spichtinger, Klaus Gierens. 2008
135 citations recorded by the source corpus.
Abstract. A double-moment bulk microphysics scheme for modelling cirrus clouds including explicit impact of aerosols on different types of nucleation mechanism is described. Process rates are formulated in terms of generalised moments of the underlying a priori size distributions in order to allow simple switching between various distribution types. The scheme has been implemented into a simple box model and into the anelastic non-hydrostatic model EULAG. The new microphysics is validated against simulations with detailed microphysics for idealised process studies and for a well documented case of arctic cirrostratus. Additionally, the formation of ice crystals with realistic background aerosol concentration is modelled and the effect of ambient pressure on homogeneous nucleation is investigated in the box model. The model stands all tests and is thus suitable for cloud-resolving simulations of cirrus clouds.
Subfields: Atmospheric Science, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/af1a1264be2632306700e2d2c903225cf3fe9541
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Citations in the corpus
- A large‐eddy model for cirrus clouds with explicit aerosol and ice microphysics and Lagrangian ice particle tracking (2010, methodology): “More recently, two-moment schemes based on ice water content and total ice crystal number density have been developed and are being used in LESs or mesoscale models (Levkov et al., 1992; Seifert and Beheng, 2006; Morrison and Grabowski, 2008; Spichtinger and Gierens, 2009).”
- Online coupled regional meteorology chemistry models in Europe: current status and prospects (2013, background): “They can also account for the size-dependent sedimentation rate (Spichtinger and Gierens, 2009).”
- A microphysics guide to cirrus clouds – Part 1: Cirrus types (2015, methodology): “Ice crystal sedimentation is treated in MAID following the sedimentation scheme of Spichtinger and Gierens (2009), which uses ice mass and number-weighted terminal veloc10”
- Influences of in-cloud aerosol scavenging parameterizations on aerosol concentrations and wet deposition in ECHAM5-HAM (2009, background): “Ice crystals of this size are often assumed to be quasi-spherical (Spichtinger and Gierens, 2009).”