Non-linear planetary tidal wave interactions in the lower thermosphere observed by meteor radar

被引：54

作者：

Mitchell, NJ ^{[1
]}

Williams, PJS ^{[1
]}

Beard, AG ^{[1
]}

Buesnel, GR ^{[1
]}

Muller, HG ^{[1
]}

机构：

[1] UNIV SHEFFIELD,DEPT PHYS,SHEFFIELD S7 3RH,S YORKSHIRE,ENGLAND

来源：

ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES | 1996年 / 14卷 / 03期

关键词：

D O I：

10.1007/s00585-996-0309-y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Meteor-radar observation of neutral winds in the lower thermosphere near Sheffield (52.5(0)N, 2.0(0)W) have been used to investigate the short-term variability of the amplitude of the semidiurnal tide. Considerable variability is found on time scales of about 2-15 days, similar to the periods associated with planetary waves. Modulation of the tidal amplitudes with a period near two days is demonstrated for two episodes in 1992. In both of these cases there is coincident planetary-wave activity of similar period suggesting a non-linear wave-wave interaction is responsible.

引用

页码：364 / 366

页数：3

共 6 条

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