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| Titel |
Diurnal and semidiurnal tide in the upper middle atmosphere during the first year of simultaneous MF radar observations in northern and southern Japan (45°N and 31°N) |
| VerfasserIn |
K. Hocke, K. Igarashi |
| 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 ; 17, no. 3 ; Nr. 17, no. 3, S.405-414 |
| Datensatznummer |
250013695
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| Publikation (Nr.) |
 copernicus.org/angeo-17-405-1999.pdf |
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| Zusammenfassung |
The climatology of mean wind, diurnal and
semidiurnal tide during the first year (1996-1997) of simultaneous wind
observations at Wakkanai (45.4°N, 141.7°E) and Yamagawa (31.2°N, 130.6°E) is
presented. The locations of the radars allow us to describe the latitudinal
dependence of the tides. Tidal amplitude and phase profiles are compared with
those of the global scale wave model (GSWM). While the observed amplitude
profiles of the diurnal tide agree well with the GSWM values, the observed phase
profiles often indicate longer vertical wavelengths than the GSWM phase
profiles. In contrast to the GSWM simulation, the observations show a strong
bimodal structure of the diurnal tide, with the phase advancing about 6 hours
from summer to winter.
Key words. Meteorology and atmospheric dynamics (middle
atmosphere dynamics; waves and tides) |
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