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| Titel |
An investigation on temperature variance scaling in the atmospheric surface layer |
| VerfasserIn |
F. Tampieri, A. Maurizi, A. Viola |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250028454
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| Zusammenfassung |
| The paper presents surface layer measurements of temperature fluctuation variance performed
in a site characterized by small scale inhomogeneities. Periods of marked radiative forcing
are chosen, in order to highlight the effects of thermal forcing and to work with a wide
stability interval. The data characterized by large thermal forcing agree quite well with the
similarity relationship for convective cases Ï-²2-Ï*2 - (z-L)-2-3 and with a z-less
parameterisation (with a large scatter) in the stable case. For near neutral cases, the
similarity function diverges because of the loss of significance of the temperature scale.
Departures from similarity are highlighted in cases with small thermal fluxes, because
horizontal heterogeneity and unsteadiness become important as production terms. |
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