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| Titel |
Exploring the use of a column model for the characterization of microphysical processes in warm rain: results from a homogeneous rainshaft model |
| VerfasserIn |
O. P. Prat, A. P. Barros |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Observation, Prediction and Verification of Precipitation (EGU Session 2006) ; Nr. 10 (2007-04-26), S.145-152 |
| Datensatznummer |
250007866
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| Publikation (Nr.) |
 copernicus.org/adgeo-10-145-2007.pdf |
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| Zusammenfassung |
| A study of the evolution of raindrop spectra (raindrop size distribution,
DSD) between cloud base and the ground surface was conducted using a column
model of stochastic coalescense-breakup dynamics. Numerical results show
that, under steady-state boundary conditions (i.e. constant rainfall rate
and DSD at the top of the rainshaft), the equilibrium DSD is achieved only
for high rain rates produced by midlevel or higher clouds and after long
simulation times (~30 min or greater). Because these conditions are
not typical of most rainfall, the results suggest that the theoretical
equilibrium DSD might not be attainable for the duration of individual rain
events, and thus DSD observations from field experiments should be analyzed
conditional on the specific storm environment under which they were
obtained. |
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