Analysis of ~21.5 d Period in Ionospheric and Solar Indices during 2011
By using Fourier transform, the spectrum of total electron content(TEC) data, relative sunspot number(RSSN), solar extreme ultraviolet(EUV) flux in 0.1~50 nm and 26~34 nm were performed to study the ~27 d period in solar-terrestrial environment. A~21.5 d period was found in TEC and solar indices, wh...
Main Authors: | , , |
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Format: | Article |
Language: | zho |
Published: |
Surveying and Mapping Press
2017-01-01
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Series: | Acta Geodaetica et Cartographica Sinica |
Subjects: | |
Online Access: | http://html.rhhz.net/CHXB/html/2017-1-9.htm |