A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations
Until now our understanding of the 11-year solar cycle signal (SCS) in stratospheric ozone has been largely based on high-quality but sparse ozone profiles from the Stratospheric Aerosol and Gas Experiment (SAGE) II or coarsely resolved ozone profiles from the nadir-viewing Solar Backscatter Ultravi...
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ftleedsuniv:oai:eprints.whiterose.ac.uk:182956 2023-05-15T13:55:51+02:00 A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations Dhomse, SS Chipperfield, MP Feng, W Hossaini, R Mann, GW Santee, ML Weber, M 2022-01-19 text https://eprints.whiterose.ac.uk/182956/ https://eprints.whiterose.ac.uk/182956/1/acp-22-903-2022.pdf https://acp.copernicus.org/articles/22/903/2022/ en eng Copernicus Publications https://eprints.whiterose.ac.uk/182956/1/acp-22-903-2022.pdf Dhomse, SS orcid.org/0000-0003-3854-5383 , Chipperfield, MP orcid.org/0000-0002-6803-4149 , Feng, W orcid.org/0000-0002-9907-9120 et al. (4 more authors) (2022) A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations. Atmospheric Chemistry and Physics, 22 (2). pp. 903-916. ISSN 1680-7316 cc_by_4 CC-BY Article NonPeerReviewed 2022 ftleedsuniv 2023-01-30T22:44:18Z Until now our understanding of the 11-year solar cycle signal (SCS) in stratospheric ozone has been largely based on high-quality but sparse ozone profiles from the Stratospheric Aerosol and Gas Experiment (SAGE) II or coarsely resolved ozone profiles from the nadir-viewing Solar Backscatter Ultraviolet Radiometer (SBUV) satellite instruments. Here, we analyse 16 years (2005–2020) of ozone profile measurements from the Microwave Limb Sounder (MLS) instrument on the Aura satellite to estimate the 11-year SCS in stratospheric ozone. Our analysis of Aura-MLS data suggests a single-peak-structured SCS profile (about 3 % near 4 hPa or 40 km) in tropical stratospheric ozone, which is significantly different to the SAGE II and SBUV-based double-peak-structured SCS. We also find that MLS-observed ozone variations are more consistent with ozone from our control model simulation that uses Naval Research Laboratory (NRL) v2 solar fluxes. However, in the lowermost stratosphere modelled ozone shows a negligible SCS compared to about 1 % in Aura-MLS data. An ensemble of ordinary least squares (OLS) and three regularised (lasso, ridge and elastic net) linear regression models confirms the robustness of the estimated SCS. In addition, our analysis of MLS and model simulations shows a large SCS in the Antarctic lower stratosphere that was not seen in earlier studies. We also analyse chemical transport model simulations with alternative solar flux data. We find that in the upper (and middle) stratosphere the model simulation with Solar Radiation and Climate Experiment (SORCE) satellite solar fluxes is also consistent with the MLS-derived SCS and agrees well with the control simulation and one which uses Spectral and Total Irradiance Reconstructions (SATIRE) solar fluxes. Hence, our model simulation suggests that with recent adjustments and corrections, SORCE data can be used to analyse effects of solar flux variations. Furthermore, analysis of a simulation with fixed solar fluxes and one with fixed (annually repeating) ... Article in Journal/Newspaper Antarc* Antarctic White Rose Research Online (Universities of Leeds, Sheffield & York) Antarctic The Antarctic |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
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ftleedsuniv |
language |
English |
description |
Until now our understanding of the 11-year solar cycle signal (SCS) in stratospheric ozone has been largely based on high-quality but sparse ozone profiles from the Stratospheric Aerosol and Gas Experiment (SAGE) II or coarsely resolved ozone profiles from the nadir-viewing Solar Backscatter Ultraviolet Radiometer (SBUV) satellite instruments. Here, we analyse 16 years (2005–2020) of ozone profile measurements from the Microwave Limb Sounder (MLS) instrument on the Aura satellite to estimate the 11-year SCS in stratospheric ozone. Our analysis of Aura-MLS data suggests a single-peak-structured SCS profile (about 3 % near 4 hPa or 40 km) in tropical stratospheric ozone, which is significantly different to the SAGE II and SBUV-based double-peak-structured SCS. We also find that MLS-observed ozone variations are more consistent with ozone from our control model simulation that uses Naval Research Laboratory (NRL) v2 solar fluxes. However, in the lowermost stratosphere modelled ozone shows a negligible SCS compared to about 1 % in Aura-MLS data. An ensemble of ordinary least squares (OLS) and three regularised (lasso, ridge and elastic net) linear regression models confirms the robustness of the estimated SCS. In addition, our analysis of MLS and model simulations shows a large SCS in the Antarctic lower stratosphere that was not seen in earlier studies. We also analyse chemical transport model simulations with alternative solar flux data. We find that in the upper (and middle) stratosphere the model simulation with Solar Radiation and Climate Experiment (SORCE) satellite solar fluxes is also consistent with the MLS-derived SCS and agrees well with the control simulation and one which uses Spectral and Total Irradiance Reconstructions (SATIRE) solar fluxes. Hence, our model simulation suggests that with recent adjustments and corrections, SORCE data can be used to analyse effects of solar flux variations. Furthermore, analysis of a simulation with fixed solar fluxes and one with fixed (annually repeating) ... |
format |
Article in Journal/Newspaper |
author |
Dhomse, SS Chipperfield, MP Feng, W Hossaini, R Mann, GW Santee, ML Weber, M |
spellingShingle |
Dhomse, SS Chipperfield, MP Feng, W Hossaini, R Mann, GW Santee, ML Weber, M A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations |
author_facet |
Dhomse, SS Chipperfield, MP Feng, W Hossaini, R Mann, GW Santee, ML Weber, M |
author_sort |
Dhomse, SS |
title |
A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations |
title_short |
A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations |
title_full |
A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations |
title_fullStr |
A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations |
title_full_unstemmed |
A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations |
title_sort |
single-peak-structured solar cycle signal in stratospheric ozone based on microwave limb sounder observations and model simulations |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://eprints.whiterose.ac.uk/182956/ https://eprints.whiterose.ac.uk/182956/1/acp-22-903-2022.pdf https://acp.copernicus.org/articles/22/903/2022/ |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://eprints.whiterose.ac.uk/182956/1/acp-22-903-2022.pdf Dhomse, SS orcid.org/0000-0003-3854-5383 , Chipperfield, MP orcid.org/0000-0002-6803-4149 , Feng, W orcid.org/0000-0002-9907-9120 et al. (4 more authors) (2022) A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations. Atmospheric Chemistry and Physics, 22 (2). pp. 903-916. ISSN 1680-7316 |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
_version_ |
1766262745066373120 |