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Reply to comment on the paper ' on a role of quadruple component of magnetic field in defining solar activity in grand cycles' by Usoskin (2017)
- Source :
- Journal of Atmospheric and Solar-Terrestrial Physics. 176:72-82
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- In this communication we provide our answers to the comments by Usoskin (2017) on our recent paper (Popova et al, 2017a). We show that Principal Component Analysis (PCA) allows us to derive eigen vectors with eigen values assigned to variance of solar magnetic field waves from full disk solar magnetograms obtained in cycles 21–23 which came in pairs. The current paper (Popova et al, 2017a) adds the second pair of magnetic waves generated by quadruple magnetic sources. This allows us to recover a centennial cycle, in addition to the grand cycle, and to produce a closer fit to the solar and terrestrial activity features in the past millennium.
- Subjects :
- Physics
Atmospheric Science
Current (mathematics)
010504 meteorology & atmospheric sciences
Meteorology
F300
F500
Variance (accounting)
01 natural sciences
Magnetic field
Geophysics
Space and Planetary Science
Component (UML)
Physics::Space Physics
0103 physical sciences
Principal component analysis
Statistical physics
010303 astronomy & astrophysics
Eigenvalues and eigenvectors
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 13646826
- Volume :
- 176
- Database :
- OpenAIRE
- Journal :
- Journal of Atmospheric and Solar-Terrestrial Physics
- Accession number :
- edsair.doi.dedup.....1181053dcaa0ef9cf5cd67232535e1a5