Variations of solar EUV, UV and ionospheric foF2 related to the solar rotation period
Item
Title (Dublin Core)
Variations of solar EUV, UV and ionospheric foF2 related to the solar rotation period
Description (Dublin Core)
Spectral analysis of daily values of various solar indices viz. sunspot number, 10.7-cm flux, H Lyman-α and -β, specific He, Fe and Mg lines and solar X-rays was carried out for two selected intervals. During interval A (May-August 1978, 123 days) the solar indices showed a prominent periodicity near 27 days, while during interval B (January-May 1979, 151 days) the solar indices showed a prominent periodicity near 13 days. For the same intervals, <i>foF2</i> (max) and <i>foF2</i> (average) during 1000-1500 LT were similarly analysed for the locations Cachoeira Paulista, SP, Brazil (23°S, 45°W), and Okinawa (26°N, 128°E) and Kokubunji (36°N, 139°E) in Japan. The 27-day and 13-day periodicities in solar indices were reflected in the <i>foF</i>2 series, but in different relative proportions at the three locations, probably due to the interference of local aerodynamical effects. Some other periodicities were common to solar indices and <i>foF</i>2, while some others were present in the solar indices but not in <i>foF</i>2, or vice versa
Creator (Dublin Core)
Kane, R. P.
Paula, E. R.
Trivedi, N. B.
Date (Dublin Core)
2018-09-27
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.1007/s00585-995-0717-4
https://angeo.copernicus.org/articles/13/717/1995/
Source (Dublin Core)
eISSN: 1432-0576
Language (Dublin Core)
eng
