Home > Research > Publications & Outputs > On the ambiguous nature of the 11year solar cyc...

Electronic data

  • pdf_copy_of_paper

    Final published version, 1.54 MB, PDF document

    Available under license: CC BY: Creative Commons Attribution 4.0 International License

Links

Text available via DOI:

View graph of relations

On the ambiguous nature of the 11year solar cycle signal in upper stratospheric ozone

Research output: Contribution to journalJournal article

Published
  • S. S. Dhomse
  • M. P. Chipperfield
  • R. P. Damadeo
  • J. M. Zawodny
  • W. T. Ball
  • W. Feng
  • R. Hossaini
  • G. W. Mann
  • J. D. Haigh
Close
<mark>Journal publication date</mark>16/07/2016
<mark>Journal</mark>Geophysical Research Letters
Issue number13
Volume43
Number of pages9
Pages (from-to)7241-7249
Publication StatusPublished
Early online date12/07/16
<mark>Original language</mark>English

Abstract

Up to now our understanding of the 11year ozone solar cycle signal (SCS) in the upper stratosphere has been largely based on the Stratospheric Aerosol and Gas Experiment (SAGE) II (v6.2) data record, which indicated a large positive signal which could not be reproduced by models, calling into question our understanding of the chemistry of the upper stratosphere. Here we present an analysis of new v7.0 SAGE II data which shows a smaller upper stratosphere ozone SCS, due to a more realistic ozone-temperature anticorrelation. New simulations from a state-of-art 3-D chemical transport model show a small SCS in the upper stratosphere, which is in agreement with SAGE v7.0 data and the shorter Halogen Occultation Experiment and Microwave Limb Sounder records. However, despite these improvements in the SAGE II data, there are still large uncertainties in current observational and meteorological reanalysis data sets, so accurate quantification of the influence of solar flux variability on the climate system remains an open scientific question.