| DOI: | 10.1002/2015GL066703
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| 论文题名: | Enhancement of odd nitrogen modifies mesospheric ozone chemistry during polar winter |
| 作者: | Verronen P.T.; Lehmann R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8333
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| EISSN: | 1944-8064
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| 出版年: | 2015
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| 卷: | 42, 期:23 | | 起始页码: | 10445
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| 结束页码: | 10452
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| 语种: | 英语
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| 英文关键词: | energetic particle precipitation
; mesosphere
; odd hydrogen
; odd nitrogen
; ozone
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| Scopus关键词: | Ionosphere
; Nitrogen
; Ozone
; Solar energy
; Upper atmosphere
; Atmospheric model
; Catalytic cycles
; Chemical catalyst
; Energetic particles
; Mesosphere
; Mesospheric ozone
; Odd nitrogen
; Polar upper atmosphere
; Atmospheric chemistry
; atmospheric chemistry
; hydrogen
; mesosphere
; nitrogen
; ozone
; precipitation (chemistry)
; winter
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| 英文摘要: | Energetic particle precipitation (EPP) enhances odd nitrogen (NOx) in the polar upper atmosphere. Model studies have reported a solar cycle response in mesospheric ozone (O3) caused by EPP-related NOx enhancements which are included by applying a vertical NOx flux at around 80 km. However, it is not clear how O3 can be affected when the main chemical catalyst of odd oxygen (Ox = O + O(1D) + O3) loss in the mesosphere is odd hydrogen (HOx). Here we use a 1-D atmospheric model and show how enhanced NOx affects mesospheric chemistry and changes HOx partitioning, which subsequently leads to increase in Ox loss through standard HOx-driven catalytic cycles. Another, smaller increase of Ox loss results from HOx storage in HNO3 during night and its release by daytime photodissociation. Our results suggest that EPP, through NOx enhancements, could have a longer-term effect on mesospheric HOx and Ox in polar winter. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953639789&doi=10.1002%2f2015GL066703&partnerID=40&md5=137adffafb95a948f2ad5ddcf691bd5c
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7949
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| 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: | Earth Observation Unit, Finnish Meteorological Institute, Helsinki, Finland
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| Recommended Citation: | |
Verronen P.T.,Lehmann R.. Enhancement of odd nitrogen modifies mesospheric ozone chemistry during polar winter[J]. Geophysical Research Letters,2015-01-01,42(23).
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