日食声重波效应

The acoustic-gravity wave effects of the solar eclipse

介绍了 1 997年 3月 9日日食期间 ,首次利用地跨主食带区两侧的电离层台阵 ,食甚前后采用 1 min 1次的同步加密观测的资料。观测证实 :日食期间在主食带区日食确有可能诱发声重波所致的电离层行扰现象 ( TID)。并对其运动学特征作了粗浅的讨论。

By using the data of the rapid-run ionosonde the solar eclipse effects were summarized at the Manzhouli、 Changchun and Beijing ionospheric observatory during the 9 March 1997 total solar eclipse. It must be pointed out that: (1) The Manzhouli ionospheric observatory was situated north of the position of the total solar eclipse path on 200 km above sea level, the Changchun and Beijing ionospheric observatory were south ; (2) The time for two successive observations was one minute for ten or twenty minutes around the middle of eclipse and five minute for the rest. It shows that: there are the traveling ionosphere disturbances (TID) caused by the acoustic gravity wave in the belt of solar eclipse during the solar eclipse. The TID was excited by the solar eclipse. The motional characteristics of the acoustic gravity wave offects of the solar eclipse were also discussed briefly.