气候变化领域集成服务门户(CCPortal): Response of middle atmospheric temperature to the 27 d solar cycle: An analysis of 13 years of microwave limb sounder data

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DOI	10.5194/acp-20-1737-2020
	Response of middle atmospheric temperature to the 27 d solar cycle: An analysis of 13 years of microwave limb sounder data
	Rong P.; Von Savigny C.; Zhang C.; Hoffmann C.G.; Schwartz M.J.
发表日期	2020
ISSN	1680-7316
起始页码	1737
结束页码	1755
卷号	20 期号:3
英文摘要	This work focuses on studying the presence and characteristics of 27 d solar signatures in middle atmospheric temperature observed by the microwave limb sounder (MLS) on NASA's Aura spacecraft. The 27 d signatures in temperature are extracted using the superposed epoch analysis (SEA) technique. We use time-lagged linear regression (sensitivity analysis) and a Monte Carlo test method (significance test) to explore the dependence of the results on latitude and altitude, solar activity, and season, as well as on different parameters (e.g., smoothing filter, window width and epoch centers). Using different parameters does impact the results to a certain degree, but it does not affect the overall results. Analyzing the 13-year data set shows that highly significant 27 d solar signatures in middle atmospheric temperature are present at many altitudes and latitudes. A tendency to higher temperature sensitivity to solar forcing in the winter hemisphere compared to the summer hemisphere is found. In addition, the sensitivity of temperature to 27 d solar forcing tends to be larger at high latitudes than at low latitudes. For 11-year solar minimum conditions no statistically significant identification of a 27 d solar signature is possible at most altitudes and latitudes. Several results we obtained suggest that processes other than solar variability drive atmospheric temperature variability at periods around 27 d. Comparisons of the obtained sensitivity values with earlier experimental and model studies show good overall agreement. © 2020 Author(s).
语种	英语
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/141548
作者单位	School of Science, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, 710049, China; Institute of Space Optics, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, 710049, China; Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Ministry of Education, 28 Xianning West Road, Xi'an, 710049, China; Institute of Physics, University of Greifswald, Felix-Hausdorff-Str. 6, Greifswald, 17489, Germany; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, United States
推荐引用方式 GB/T 7714	Rong P.,Von Savigny C.,Zhang C.,et al. Response of middle atmospheric temperature to the 27 d solar cycle: An analysis of 13 years of microwave limb sounder data[J],2020,20(3).
APA	Rong P.,Von Savigny C.,Zhang C.,Hoffmann C.G.,&Schwartz M.J..(2020).Response of middle atmospheric temperature to the 27 d solar cycle: An analysis of 13 years of microwave limb sounder data.Atmospheric Chemistry and Physics,20(3).
MLA	Rong P.,et al."Response of middle atmospheric temperature to the 27 d solar cycle: An analysis of 13 years of microwave limb sounder data".Atmospheric Chemistry and Physics 20.3(2020).