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| Titel |
Retrieval of static stability parameter from the radiosonde/rawinsonde ascent rate profiles: a wavelet approach |
| VerfasserIn |
Prakash M. Dolas, Karanam Kishore Kumar |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 27, no. 2 ; Nr. 27, no. 2 (2009-02-02), S.547-553 |
| Datensatznummer |
250016394
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| Publikation (Nr.) |
 copernicus.org/angeo-27-547-2009.pdf |
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| Zusammenfassung |
| In the present communication a novel method is presented to derive the
altitude profile of Brunt-Väisälä period from the ascent rate
profile of sounding balloons. The basic premise of the present method is
that the oscillations in the ascent rate of the balloon will have the
signature of Brunt-Väisälä frequency, which can be retrieved by
using sophisticated spectral tools. We employ wavelet transforms to arrive
at the Brunt-Väisälä period profile. Comparison of retrieved
Brunt-Väisälä periods with the values derived from the
temperature data available from the same radiosonde ascent shows good
agreement. Retrieving the atmospheric temperature from the height profile of
Brunt-Väisälä period is also discussed in the present
communication. We have shown that it is possible to estimate the
Brunt-Väisälä period and temperature profiles from the
rawinsonde ascent rate data alone where temperature sounding is not
available. |
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