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Titel |
Numerical study of two-dimensional moist symmetric instability |
VerfasserIn |
M. Fantini, P. Malguzzi |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7340
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Digitales Dokument |
URL |
Erschienen |
In: 9th EGU Plinius Conference on Mediterranean Storms (2007) ; Nr. 17 (2008-06-20), S.1-4 |
Datensatznummer |
250013616
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Publikation (Nr.) |
copernicus.org/adgeo-17-1-2008.pdf |
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Zusammenfassung |
The 2-D version of the non-hydrostatic fully compressible model MOLOCH
developed at ISAC-CNR was used in idealized set-up to study the start-up
and finite amplitude evolution of symmetric instability. The unstable
basic state was designed by numerical integration of the equation
which defines saturated equivalent potential vorticity qe*.
We present the structure and growth rates of the linear modes
both for a supersaturated initial state ("super"-linear mode) and
for a saturated one ("pseudo"-linear mode) and the
modifications induced on the base state by their
finite amplitude evolution. |
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