globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069645
论文题名:
Resolving the mesospheric nighttime 4.3 µm emission puzzle: Laboratory demonstration of new mechanism for OH(υ) relaxation
作者: Kalogerakis K.S.; Matsiev D.; Sharma R.D.; Wintersteiner P.P.
刊名: Geophysical Research Letters
ISSN: 0094-8651
EISSN: 1944-8382
出版年: 2016
卷: 43, 期:17
起始页码: 8835
结束页码: 8843
语种: 英语
英文关键词: 4.3 µm emission ; atomic oxygen ; energy transfer ; hydroxyl ; mesosphere
Scopus关键词: Carbon dioxide ; Excited states ; Ground state ; Ionosphere ; Atomic oxygen ; Energy transfer process ; Ground state oxygen atom ; hydroxyl ; Laboratory demonstrations ; mesosphere ; Standing problems ; Vibrationally excited ; Energy transfer
英文摘要: We report laboratory results that support a recently proposed mechanism for relaxation of highly vibrationally excited hydroxyl radical by ground-state oxygen atoms (Sharma et al., GRL 42, 4639–4647 (2015)). According to this mechanism, which eventually leads to an enhancement of nocturnal 4.3 µm CO2 emissions in the mesosphere, the deactivation of OH(high υ) by O(3P) involves a fast, spin-allowed, multiquantum vibration-to-electronic (V-E) energy transfer process generating O(1D). We present laser-based experiments that demonstrate these energy transfer processes in action and discuss some implications of the new mechanism for mesospheric OH. These developments represent a breakthrough addressing the long-standing problem of unacceptably large discrepancies between models and observations of the nocturnal mesospheric 4.3 µm emission. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988965008&doi=10.1002%2f2016GL069645&partnerID=40&md5=43eef786db17e645c3d05ed3bb2a6d07
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9614
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: Center for Geospace Studies, SRI International, Menlo Park, CA, United States

Recommended Citation:
Kalogerakis K.S.,Matsiev D.,Sharma R.D.,et al. Resolving the mesospheric nighttime 4.3 µm emission puzzle: Laboratory demonstration of new mechanism for OH(υ) relaxation[J]. Geophysical Research Letters,2016-01-01,43(17).
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