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| Titel |
Nonlinear features of equatorial baroclinic Rossby waves detected in Topex altimeter observations |
| VerfasserIn |
R. E. Glazman, A. Fabrikant, A. M. Greysukh |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 3, no. 2 ; Nr. 3, no. 2, S.115-126 |
| Datensatznummer |
250000866
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| Publikation (Nr.) |
 copernicus.org/npg-3-115-1996.pdf |
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| Zusammenfassung |
| Using a recently proposed technique
for statistical
analysis of non-gridded satellite altimeter data,
regime of
long equatorially-trapped baroclinic Rossby waves is
studied.
One-dimensional spatial and spatiotemporal
autocorrelation
functions of sea surface height (SSH) variations yield
a broad
spectrum of baroclinic Rossby waves and permit
determination
of their propagation speed. The 1-d wavenumber
spectrum of
zonal variations is given by a power-law k-2 on scales from
about 103 km to 104 km. We
demonstrate that the observed wave
regime exhibits features of soliton turbulence
developing in
the long baroclinic Rossby waves. However, being
limited to
second statistical moments, the present analysis
does not
allow us to rule out a possibility of weak wave
turbulence. |
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