| DOI: | 10.1002/grl.50303
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| 论文题名: | Lower tropospheric ozone at northern midlatitudes: Changing seasonal cycle |
| 作者: | Parrish D.D.; Law K.S.; Staehelin J.; Derwent R.; Cooper O.R.; Tanimoto H.; Volz-Thomas A.; Gilge S.; Scheel H.-E.; Steinbacher M.; Chan E.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9147
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| EISSN: | 1944-8878
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| 出版年: | 2013
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| 卷: | 40, 期:8 | | 起始页码: | 1631
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| 结束页码: | 1636
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| 语种: | 英语
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| 英文关键词: | northern mid-latitudes
; ozone
; seasonal cycle
; troposphere
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| Scopus关键词: | Anthropogenic emissions
; Atmospheric transport
; Chemical and transport models
; Chemistry-climate models
; Midlatitudes
; Peak concentrations
; Seasonal cycle
; Spatial and temporal changes
; Atmospheric movements
; Climate change
; Ozone
; Troposphere
; climate modeling
; concentration (composition)
; midlatitude environment
; ozone
; quantitative analysis
; seasonal variation
; spatiotemporal analysis
; transport process
; troposphere
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| 英文摘要: | At northern midlatitudes the abundance of tropospheric O3 has increased by a factor of approximately 2 since the 1950s. The cause of this increase is generally attributed to increasing anthropogenic precursor emissions, but present chemical and transport models cannot quantitatively reproduce its magnitude. Here we show another manifestation of changes in O 3 abundance - a shift of the seasonal cycle at northern midlatitudes so that the observed peak concentrations now appear earlier in the year than in previous decades. The rate of this shift has been 3 to 6 days per decade since the 1970s. We examine possible reasons to explain this shift and suggest it is due to changes in atmospheric transport patterns combined with spatial and temporal changes in emissions. Detailed modeling is necessary to test these hypotheses; this investigation will provide useful guidance for improving global chemistry-climate models and stringent tests of the model results. Key Points The date of the maximum of tropospheric ozone has moved to earlier in the year Change has been approximately constant at 3 to 6 days per decade since the 1970s Cause of change may be due to changing climate and/or anthropogenic emissions. ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877951147&doi=10.1002%2fgrl.50303&partnerID=40&md5=1c61f97542bf80e8ac5393cb3c5d9f8a
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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/6411
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| Appears in Collections: | 气候减缓与适应
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作者单位: | NOAA ESRL Chemical Sciences Division, 325 Broadway, Boulder, CO, United States
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| Recommended Citation: | |
Parrish D.D.,Law K.S.,Staehelin J.,et al. Lower tropospheric ozone at northern midlatitudes: Changing seasonal cycle[J]. Geophysical Research Letters,2013-01-01,40(8).
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