The upper stratospheric solar cycle ozone response
File(s)BalletalGRL2019.pdf (2.51 MB)
Published version
Author(s)
Type
Journal Article
Abstract
The solar cycle (SC) stratospheric ozone response is thought to influence surface weather and climate. To understand the chain of processes and ensure climate models adequately represent them, it is important to detect and quantify an accurate SC ozone response from observations. Chemistry climate models (CCMs) and observations display a range of upper stratosphere (1–10 hPa) zonally averaged spatial responses; this and the recommended data set for comparison remains disputed. Recent data-merging advancements have led to more robust observational data. Using these data, we show that the observed SC signal exhibits an upper stratosphere U-shaped spatial structure with lobes emanating from the tropics (5–10 hPa) to high altitudes at midlatitudes (1–3 hPa). We confirm this using two independent chemistry climate models in specified dynamics mode and an idealized timeslice experiment. We recommend the BASIC v2 ozone composite to best represent historical upper stratospheric solar variability, and that those based on SBUV alone should not be used.
Date Issued
2019-02-16
Date Acceptance
2019-01-27
Citation
Geophysical Research Letters, 2019, 46 (3), pp.1831-1841
ISSN
0094-8276
Publisher
Wiley
Start Page
1831
End Page
1841
Journal / Book Title
Geophysical Research Letters
Volume
46
Issue
3
Copyright Statement
© 2019 The Authors. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
Sponsor
Natural Environment Research Council (NERC)
Science and Technology Facilities Council
Science and Technology Facilities Council (STFC)
Grant Number
H31025
ST-N000838
ST/N000838/1
Subjects
MD Multidisciplinary
Meteorology & Atmospheric Sciences
Publication Status
Published
Date Publish Online
2019-02-10