DOI: 10.1002/2015GL067241
论文题名: The photolysis of FeOH and its effect on the bottomside of the mesospheric Fe layer
作者: Viehl T.P. ; Plane J.M.C. ; Feng W. ; Höffner J.
刊名: Geophysical Research Letters
ISSN: 0094-9405
EISSN: 1944-9136
出版年: 2016
卷: 43, 期: 3 起始页码: 1373
结束页码: 1381
语种: 英语
英文关键词: FeOH photolysis
; lidar
; mesospheric Fe layer
; mesospheric metals
; WACCM
Scopus关键词: Atmospheric chemistry
; Atmospheric structure
; Ionosphere
; Optical radar
; Quantum chemistry
; Fe layer
; Lidar observation
; Mesosphere and lower thermosphere
; Mesospheric temperature
; Quantum chemical calculations
; Rate coefficients
; Temperature structure
; WACCM
; Photolysis
; ablation
; chemical compound
; cloud
; iron
; lidar
; mesosphere
; numerical model
; photolysis
; solar radiation
; temperature profile
; thermosphere
英文摘要: Metal layers in the upper mesosphere and lower thermosphere are created through meteoric ablation. They are important for understanding the temperature structure, dynamics, and chemistry of this atmospheric region. Recent lidar observations have shown a regular downward extension of the Fe layer bottomside which correlates with solar radiation. In this study we combine lidar observations, quantum chemical calculations, and model simulations to show that this bottomside extension is primarily caused by photolysis of FeOH. We determine the photolysis rate to be s-1. We also show that the reaction is slower at mesospheric temperatures than previous estimates. With these updated rate coefficients, we are able to significantly improve the modeling of the Fe layer bottomside. The calculations further show the nearly complete depletion of FeOH during sunlit periods. This may have implications for cloud nuclei in the middle atmosphere. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969351867&doi=10.1002%2f2015GL067241&partnerID=40&md5=14adcc7419f352077774ed6473cb666d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10368
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: Leibniz-Institute of Atmospheric Physics, University of Rostock, Kühlungsborn, Germany
Recommended Citation:
Viehl T.P.,Plane J.M.C.,Feng W.,et al. The photolysis of FeOH and its effect on the bottomside of the mesospheric Fe layer[J]. Geophysical Research Letters,2016-01-01,43(3).