Particles of Aurorae and Geomagnetic Pulsations
It is shown that the geomanetic pulsation is caused by hydromagnetic oscillation of the exosphere excited by solar charged corpuscles impinging on the earth as predicted by Störmer. Pc-type Pulsations are excited by auroral particles impinging on the 09h impact-zone, of which latitude is higher than...
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Published in | Journal of geomagnetism and geoelectricity Vol. 10; no. 4; pp. 185 - 194 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Society of Geomagnetism and Earth, Planetary and Space Sciences
1959
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Online Access | Get full text |
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Summary: | It is shown that the geomanetic pulsation is caused by hydromagnetic oscillation of the exosphere excited by solar charged corpuscles impinging on the earth as predicted by Störmer. Pc-type Pulsations are excited by auroral particles impinging on the 09h impact-zone, of which latitude is higher than the usual auroral zone and which gives rise to a second auroral zone as suggested by Nikolsky. Pt-tpye pulsations are excited by particles impinging on the 21h zone, corresponding to the usual auroral zone. The L. M. T. dependence of the occurrence-frequency of geomagnetic pulsations is well explained, assuming that the intensity of geomagnetic pulsations at a station will be lesser as it is more distant from the impact-zone. On the other hand, the G. M. T. control in the occurrence-frequency, as suggested by Troitskaya, is to be expected due to an inclination of the geomagnetic axis to the axis of rotation of the earth. |
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ISSN: | 0022-1392 2185-5765 |
DOI: | 10.5636/jgg.10.185 |