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| Titel |
Influence of gravity waves and tides on mesospheric temperature inversion layers: simultaneous Rayleigh lidar and MF radar observations |
| VerfasserIn |
S. Sridharan, S. Sathishkumar, S. Gurubaran |
| 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 ; 26, no. 12 ; Nr. 26, no. 12 (2008-11-25), S.3731-3739 |
| Datensatznummer |
250016305
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| Publikation (Nr.) |
 copernicus.org/angeo-26-3731-2008.pdf |
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| Zusammenfassung |
| Three nights of simultaneous Rayleigh lidar temperature measurements over
Gadanki (13.5° N, 79.2° E) and medium frequency (MF) radar wind
measurements over Tirunelveli (8.7° N, 77.8° E) have been analyzed
to illustrate the possible effects due to tidal-gravity wave interactions on
upper mesospheric inversion layers. The occurrence of tidal gravity wave
interaction is investigated using MF radar wind measurements in the altitude
region 86–90 km. Of the three nights, it is found that tidal gravity wave
interaction occurred in two nights. In the third night, diurnal tidal amplitude
is found to be significantly larger. As suggested in Sica et al. (2007),
mesospheric temperature inversion seems to be a signature of wave
saturation in the mesosphere, since the temperature inversion occurs at
heights, when the lapse rate is less than half the dry adiabatic lapse rate. |
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