| Abstrakt: |
Examination of the contribution from O. A. Troshichev, S. Dolgacheva, N. A. Stepanov, and D. A. Sormakov: "The PC index variations during 23/24 solar cycles: relation to solar wind parameters and magnetic disturbances," https://doi.org/10.1029/2020JA028491 has disclosed inconsistencies in the applied methods and errors in the calculated values. Some of the discrepancies reported in the present commentary affect directly the illustrations presented in their contribution while other possible errors may not be apparent since the use of relative values in their presentation makes thorough assessments difficult. Plain Language Summary: The publication by Troshichev et al. (2021), https://doi.org/10.1029/2020JA028491 is devaluated by inconsistencies in the applied methods and errors in the presented material, among others, in their Figures 1 and 2 while further potential errors are disguised by the use of relative instead of actual parameter values. Key Points: Calling attention to the invalid database at Troshichev et al. (2021), https://doi.org/10.1029/2020JA028491Calling attention to its unclear or invalid methodologiesCalling attention to its questionable conclusions based on invalid correlations [ABSTRACT FROM AUTHOR] |
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