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| Titel |
Analytical treatment of ice sublimation and test of sublimation parameterisations in two–moment ice microphysics models |
| VerfasserIn |
K. Gierens, S. Bretl |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 9, no. 19 ; Nr. 9, no. 19 (2009-10-07), S.7481-7490 |
| Datensatznummer |
250007673
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| Publikation (Nr.) |
 copernicus.org/acp-9-7481-2009.pdf |
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| Zusammenfassung |
| We derive an analytic solution to the spectral growth/sublimation
equation for ice crystals and apply it to idealised cases. The
results are used to test parameterisations of the ice sublimation
process in two–moment bulk microphysics models. Although it turns
out that the relation between number loss fraction and mass loss
fraction is not a function since it is not unique, it seems that a
functional parameterisation is the best that one can do in a bulk
model. Testing a more realistic case with humidity oscillations
shows that artificial crystal loss can occur in simulations of
mature cirrus clouds with relative humidity fluctuating about ice
saturation. |
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