Frequency of Solar Spotless Days and Flare Index as Indices of Solar Cycle Activity
There was a research on the prolongation of solar cycle 23 by the solar cyclic variation of solar, interplanetary geomagnetic parameters by Oh & Kim (2013). They also suggested that the sunspot number cannot typically explain the variation of total solar irradiance any more. Instead of the sun...
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Format: | Article |
Language: | English |
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The Korean Space Science Society
2014-06-01
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Series: | Journal of Astronomy and Space Sciences |
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Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2014/v31n2/OJOOBS_2014_v31n2_145.pdf |