Shang, L, Tian, WS, Dhomse, S et al. (3 more authors) (2013) Direct and indirect effects of solar variations on stratospheric ozone and temperature. Chinese Science Bulletin, 58 (31). 3840 - 3846. ISSN 1001-6538
Abstract
We have used a fully coupled chemistry-climate model (WACCM) to investigate the relative importance of the direct and indirect effects of 11a solar variations on stratospheric temperature and ozone. Although the model does not contain a quasi-biennial oscillation (QBO) and uses fixed sea surface temperature (SST), it is able to produce a second maximum solar response in tropical lower stratospheric (TLS) temperature and ozone of approximately 0.5 K and 3%, respectively. In the TLS, the solar spectral variations in the chemistry scheme play a more important role than solar spectral variations in the radiation scheme in generating temperature and ozone responses. The chemistry effect of solar variations causes significant changes in the Brewer-Dobson (BD) circulation resulting in ozone anomalies in the TLS. The model simulations also show a negative feedback in the upper stratosphere between the temperature and ozone responses. A wavelet analysis of the modeled ozone and temperature time series reveals that the maximum solar responses in ozone and temperature caused by both chemical and radiative effects occur at different altitudes in the upper stratosphere. The analysis also confirms that both the direct radiative and indirect ozone feedback effects are important in generating a solar response in the upper stratospheric temperatures, although the solar spectral variations in the chemistry scheme give the largest solar cycle power in the upper stratospheric temperature.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2013. This article is published with open access at Springerlink.com. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Solar cycle; stratospheric ozone; stratospheric temperature; chemistry; radiation |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Sep 2014 15:05 |
Last Modified: | 03 Sep 2014 15:05 |
Published Version: | http://dx.doi.org/10.1007/s11434-013-5822-2 |
Status: | Published |
Publisher: | SpringerOpen |
Identification Number: | 10.1007/s11434-013-5822-2 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:80020 |