Numerical study of two-dimensional moist symmetric instability
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 satura...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2008-06-01
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| Series: | Advances in Geosciences |
| Online Access: | http://www.adv-geosci.net/17/1/2008/adgeo-17-1-2008.pdf |
| _version_ | 1811264679448674304 |
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| author | M. Fantini P. Malguzzi |
| author_facet | M. Fantini P. Malguzzi |
| author_sort | M. Fantini |
| collection | DOAJ |
| description | 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 q<sub>e</sub><sup>*</sup>. 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. |
| first_indexed | 2024-04-12T20:08:42Z |
| format | Article |
| id | doaj.art-0998b09a897242e5b88ac9753ef84fe1 |
| institution | Directory Open Access Journal |
| issn | 1680-7340 1680-7359 |
| language | English |
| last_indexed | 2024-04-12T20:08:42Z |
| publishDate | 2008-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Advances in Geosciences |
| spelling | doaj.art-0998b09a897242e5b88ac9753ef84fe12022-12-22T03:18:19ZengCopernicus PublicationsAdvances in Geosciences1680-73401680-73592008-06-011714Numerical study of two-dimensional moist symmetric instabilityM. FantiniP. MalguzziThe 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 q<sub>e</sub><sup>*</sup>. 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.http://www.adv-geosci.net/17/1/2008/adgeo-17-1-2008.pdf |
| spellingShingle | M. Fantini P. Malguzzi Numerical study of two-dimensional moist symmetric instability Advances in Geosciences |
| title | Numerical study of two-dimensional moist symmetric instability |
| title_full | Numerical study of two-dimensional moist symmetric instability |
| title_fullStr | Numerical study of two-dimensional moist symmetric instability |
| title_full_unstemmed | Numerical study of two-dimensional moist symmetric instability |
| title_short | Numerical study of two-dimensional moist symmetric instability |
| title_sort | numerical study of two dimensional moist symmetric instability |
| url | http://www.adv-geosci.net/17/1/2008/adgeo-17-1-2008.pdf |
| work_keys_str_mv | AT mfantini numericalstudyoftwodimensionalmoistsymmetricinstability AT pmalguzzi numericalstudyoftwodimensionalmoistsymmetricinstability |