气候变化领域集成服务门户(CCPortal): A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations

CCPortal

DOI	10.5194/acp-22-903-2022
	A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations
	Dhomse, Sandip S.; Chipperfield, Martyn P.; Feng, Wuhu; Hossaini, Ryan; Mann, Graham W.; Santee, Michelle L.; Weber, Mark
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	903
结束页码	916
卷号	22 期号:2 页码:14
英文摘要	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 doublepeak-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) meteorology confirms that the implicit dynamical SCS in the (re)analysis data used to force the model is not enough to simulate the observed SCS in the middle and upper stratospheric ozone. Finally, we argue that the overall significantly different SCS compared to previous estimates might be due to a combination of different factors such as much denser MLS measurements, almost linear stratospheric chlorine loading changes over the analysis period, variations in the stratospheric dynamics as well as relatively unperturbed stratospheric aerosol layer that might have influenced earlier analyses.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000747146100001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273475
作者单位	University of Leeds; University of Leeds; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC); NERC National Centre for Atmospheric Science; University of Leeds; Lancaster University; California Institute of Technology; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); University of Bremen
推荐引用方式 GB/T 7714	Dhomse, Sandip S.,Chipperfield, Martyn P.,Feng, Wuhu,et al. A single-peak-structured solar cycle signal in stratospheric ozone based on Microwave Limb Sounder observations and model simulations[J],2022,22(2):14.
APA	Dhomse, Sandip S..,Chipperfield, Martyn P..,Feng, Wuhu.,Hossaini, Ryan.,Mann, Graham W..,...&Weber, Mark.(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),14.
MLA	Dhomse, Sandip S.,et al."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(2022):14.