Computer Science
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988p%26ss...36..641s&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 36, July 1988, p. 641-653.
Computer Science
1
Electric Fields, Geomagnetic Micropulsations, Ionospheric Currents, Power Spectra, Ionospheric Propagation, Magnetohydrodynamic Waves, Magnetometers, Spectrum Analysis
Scientific paper
Observations of ionospheric equivalent current systems of low-latitude Pc3 pulsations were obtained simultaneously on June 7, 1980 from the stations of the AFGL magnetometer network. In longitude, the apparent phase propagated eastward or westward, not always consistently between the H-components and D-components, while for latitude, the apparent phase was always poleward for both components. Cross spectral analysis of the interstation signals reveals two types of current systems: (1) type A systems, consisting of a clockwise or counterclockwise ionospheric current cell that appears at the northeast end of the activity region, moves toward the west, and then disappears at the north-west end of the activity region; and (2) type B systems, consisting of two subcells moving from north to south independently.
Kim Jinyoung Serena
Knecht David J.
Saka O.
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