DOI: 10.1002/grl.50167
论文题名: Absolute concentrations of highly vibrationally excited OH(ε = 9 + 8) in the mesopause region derived from the TIMED/SABER instrument
作者: Mast J. ; Mlynczak M.G. ; Hunt L.A. ; Marshall B.T. ; Mertens C.J. ; Russell J.M. ; Thompson R.E. ; Gordley L.L.
刊名: Geophysical Research Letters
ISSN: 0094-9333
EISSN: 1944-9064
出版年: 2013
卷: 40, 期: 3 起始页码: 646
结束页码: 650
语种: 英语
英文关键词: Airglow
; Highly vibrationally excited OH
; Mesopause chemistry
Scopus关键词: Free radicals
; Reaction kinetics
; Solar energy
; 11-year solar cycle
; Airglow
; Changes in volume
; Long-term measurements
; Mesopause chemistry
; Photochemical models
; Sensitive measurement
; Vibrationally excited
; Association reactions
; airglow
; atmospheric chemistry
; database
; hydroxyl radical
; long-term change
; mesopause
; photochemistry
; reaction kinetics
; solar cycle
; vibration
; volume
英文摘要: Absolute concentrations (cm-3) of highly vibrationally excited hydroxyl (OH) are derived from measurements of the volume emission rate of the ε = 9 + 8 states of the OH radical made by the SABER instrument on the TIMED satellite. SABER has exceptionally sensitive measurement precision that corresponds to an ability to detect changes in volume emission rate on the order of ~5 excited OH molecules per cm3. Peak zonal annual mean concentrations observed by SABER exceed 1000 cm-3 at night and 225 cm-3 during the day. Measurements since 2002 show an apparent altitude-dependent variation of the night OH(ε = 9 + 8) concentrations with the 11 year solar cycle, with concentrations decreasing below ~ 95 km from 2002 to 2008. These observations provide a global database for evaluating photochemical model computations of OH abundance, reaction kinetics, and rates and mechanisms responsible for maintaining vibrationally excited OH in the mesopause region. Key Points First measured absolute global concentrations of OH(9+8) in mesopause region Long term measurements give evidence of solar cycle variability of OH(v) Pertinent to photochemical models and measurement of reaction kinetics ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878197881&doi=10.1002%2fgrl.50167&partnerID=40&md5=9d8dba4ba882c2827721f4cfd5a8b468
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6597
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: SSAI, Inc., Hampton, VA, United States
Recommended Citation:
Mast J.,Mlynczak M.G.,Hunt L.A.,et al. Absolute concentrations of highly vibrationally excited OH(ε = 9 + 8) in the mesopause region derived from the TIMED/SABER instrument[J]. Geophysical Research Letters,2013-01-01,40(3).