Coherent changes of solar and ionospheric activity during long-lived coronal mega-hole from Carrington rotation CR2165 to CR2188
| Autor: | T.L. Gulyaeva, R.A. Gulyaev |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Atmospheric Science 010504 meteorology & atmospheric sciences Coronal hole Noon Rotation Atmospheric sciences 01 natural sciences Intensity (physics) Solar wind Geophysics Space and Planetary Science 0103 physical sciences Ionosphere 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Journal of Atmospheric and Solar-Terrestrial Physics. 179:165-173 |
| ISSN: | 1364-6826 |
| DOI: | 10.1016/j.jastp.2018.07.007 |
| Popis: | Correlations of solar and ionospheric activity are investigated during the long-lived coronal mega-hole (CMH) for 24 solar rotations at the decline phase of SC24 from June, 2015, to March, 2017. Pch index (Luo et al., 2008) which is a function of the intensity in the central area developed for forecasting of daily solar wind speed (Vsw) is used as characteristic of efficiency of CMH. The solar activity indices Pch, SSN2, F10.7, Lyman-α, MgII, Vsw, and the ionospheric indices – global electron content GEC and global noon TECgn index averaged from data of 288 IGS observatories are analyzed. Sporadic disturbances in solar and ionospheric data are smoothed by the time-weighted exponential accumulation of their history with the persistence factor τ (0 ≤τ |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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