ANOMALY IN THE LONG-DISTANCE 40-KHZ RADIO-WAVE PROPAGATION

被引：0

作者：

DE, BK

SARKAR, SK

机构：

来源：

INDIAN JOURNAL OF RADIO & SPACE PHYSICS | 1994年 / 23卷 / 04期

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Anomalous propagational characteristics (miday level greater than the midnight level) have been observed in the case of propagation of 40 kHz low frequency signal over a distance of 5100 km from Sanwa, Japan, to Calcutta. The anomaly is closely associated with geomagnetic storms. This is expected to be due to extra-ionization in the D-region caused by the precipitation of energetic charged particles. The storm after-effects have duration of one day in this low latitude path.

引用

页码：272 / 274

页数：3

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