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| Titel |
Data analysis and parameterisation for the stable boundary layer |
| VerfasserIn |
Francesco Tampieri, Angelo Viola, Alberto Maurizi |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250035899
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| Zusammenfassung |
| Turbulence in the stable boundary layer presents many aspects not well understood; on the
other hand the boundary layer parameterisation is of overwhelming importance to model
atmospheric dynamics and composition.
A set of observations of wind mean velocity and fluctuations obtained in the suburban
site of Torvergata, near Rome, Italy, is used to test literature similarity functions
for moderate to large stability conditions. In particular, the u*-less hypotesis for
large stability conditions (Grachev et al., Boundary-Layer Meteorol., 124, 2007) is
discussed.
The similarity functions for mean values are used to obtain the surface layer vertical
fluxes of momentum and heat in the numerical models. The applicability of the
discussed functions and the limitations related to the height of the stable boundary
layer (which can be not very much greater than the lowest model level height) are
discussed. |
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