Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 5.509 IF 5.509
  • IF 5-year value: 5.689 IF 5-year 5.689
  • CiteScore value: 5.44 CiteScore 5.44
  • SNIP value: 1.519 SNIP 1.519
  • SJR value: 3.032 SJR 3.032
  • IPP value: 5.37 IPP 5.37
  • h5-index value: 86 h5-index 86
  • Scimago H index value: 161 Scimago H index 161
Discussion papers
https://doi.org/10.5194/acp-2018-799
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2018-799
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 24 Aug 2018

Research article | 24 Aug 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

Solar 27-day signatures in standard phase height measurements above central Europe

Christian von Savigny1, Dieter H. W. Peters2, and Günter Entzian2 Christian von Savigny et al.
  • 1Institute of Physics, University of Greifswald, Felix-Hausdorff-Str. 6, 17489 Greifswald, Germany
  • 2Leibniz-Institute of Atmospheric Physics e.V. at Rostock University (IAP), Schlossstraße 6, 18225 Kühlungsborn, Germany

Abstract. We report on the effect of solar variability at the 27-day and the 11-year time scale on standard phase height measurements carried out in central Europe. Using the superposed epoch analysis (SEA) method, we extract statistically highly significant solar 27-day signatures in standard phase heights. The 27-day signatures are roughly anti-correlated to solar proxies, such as the F10.7cm radio flux or the Lyman-α flux. The sensitivity of standard phase height change to solar forcing at the 27-day time scale is found to be in good agreement with the sensitivity for the 11-year solar cycle, suggesting similar underlying mechanisms. The amplitude of the 27-day signature in standard phase height is larger during solar minimum than during solar maximum, indicating that the signature is not only driven by photo-ionisation of NO. We identified statistical evidence for an influence of ultra-long planetary waves on the quasi 27-day signature of standard phase height in winters of solar minimum periods.

Christian von Savigny et al.
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Co-Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Christian von Savigny et al.
Christian von Savigny et al.
Viewed  
Total article views: 315 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
242 66 7 315 8 7
  • HTML: 242
  • PDF: 66
  • XML: 7
  • Total: 315
  • BibTeX: 8
  • EndNote: 7
Views and downloads (calculated since 24 Aug 2018)
Cumulative views and downloads (calculated since 24 Aug 2018)
Viewed (geographical distribution)  
Total article views: 315 (including HTML, PDF, and XML) Thereof 310 with geography defined and 5 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 19 Nov 2018
Publications Copernicus
Special issue
Download
Short summary
This study investigates solar effects in radio reflection height measurements in the D-region of the ionosphere at an altitude of about 80 km. The analyzed time series covers almost 6 solar cycles. Statistically significant solar 27-day and 11-year signatures are identified in the time series. However, the driving mechanisms are not fully understood. We also investigate potential dynamical effects on the reflection heights with periods close to the solar rotational cycle.
This study investigates solar effects in radio reflection height measurements in the D-region of...
Citation
Share