DOI: 10.1002/2015GL065237
论文题名: First evidence of middle atmospheric HO2 response to 27 day solar cycles from satellite observations
作者: Wang S. ; Zhang Q. ; Millán L. ; Li K.-F. ; Yung Y.L. ; Sander S.P. ; Livesey N.J. ; Santee M.L.
刊名: Geophysical Research Letters
ISSN: 0094-8438
EISSN: 1944-8169
出版年: 2015
卷: 42, 期: 22 起始页码: 10004
结束页码: 10009
语种: 英语
英文关键词: hydroperoxyl radical HO2
; middle atmospheric chemistry
; odd hydrogen HOx
; solar cycles
; solar UV irradiance
Scopus关键词: Solar energy
; Upper atmosphere
; Hydroperoxyl radical
; Microwave limb sounder
; Odd hydrogen HO<sub>x</sub>
; Photochemical production
; Satellite observations
; Solar cycle
; Solar cycle signal
; UV irradiances
; Atmospheric chemistry
; atmospheric chemistry
; Aura (satellite)
; hydrogen
; hydroxyl radical
; irradiance
; mesosphere
; microwave limb sounder
; middle atmosphere
; ozone
; photochemistry
; satellite data
; solar cycle
; ultraviolet radiation
英文摘要: HO2 and OH, also known as HOx, play an important role in controlling middle atmospheric O3. Due to their photochemical production and short chemical lifetimes, HOx are expected to respond rapidly to solar irradiance changes, resulting in O3 variability. While OH solar cycle signals have been investigated, HO2 studies have been limited by the lack of reliable observations. Here we present the first evidence of HO2 variability during solar 27 day cycles by investigating the recently developed HO2 data from the Aura Microwave Limb Sounder (MLS). We focus on 2012-2015, when solar variability is strong near the peak of Solar Cycle 24. The features of HO2 variability, with the strongest signals at 0.01-0.068 hPa, correlate well with those of solar Lyman α. When continuous MLS OH observations are not available, the new HO2 data could be a promising alternative for investigating HOx variability and the corresponding impacts on O3 and the climate. Key Points Satellite observations show distinct short-term mesospheric HO2 variability HO2 variability correlates well with solar UV changes during 27 day cycles. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956930250&doi=10.1002%2f2015GL065237&partnerID=40&md5=e04b2f379a2a0f5a0cc579de6a7b31f9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8054
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Wang S.,Zhang Q.,Millán L.,et al. First evidence of middle atmospheric HO2 response to 27 day solar cycles from satellite observations[J]. Geophysical Research Letters,2015-01-01,42(22).