Ionospheric Effects o Low latitude Geomagnetic Micropulsatios (d. ULF Waves in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I)
Low latitude geomagnetic micropulsations have been observed at ASO (22°N, 198°E in geomagnetic coordinate) by use of a superconducting magnetometer, and signals in the period range from 50 to 120 s (Pi 2 and Pc 4) were analyzed in comparison with the ionospheric sounding data. It is found that the i...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
National Institute of Polar Research
1980-02-01
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| Series: | Antarctic Record |
| Online Access: | https://doi.org/10.15094/00008139 |
| Summary: | Low latitude geomagnetic micropulsations have been observed at ASO (22°N, 198°E in geomagnetic coordinate) by use of a superconducting magnetometer, and signals in the period range from 50 to 120 s (Pi 2 and Pc 4) were analyzed in comparison with the ionospheric sounding data. It is found that the increment of the D component of the pulsations appears coincident with the E layer ionization enhancement, and at the same time there appears a change of polarization ellipticity from linear to elliptical. It is suggested that the polarization change is attributable to the coupling of the H- and the D-components by the Hall current in the E layer. |
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| ISSN: | 0085-7289 2432-079X |