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DOI | 10.5194/acp-20-6417-2020 |
Stratospheric impact on the Northern Hemisphere winter and spring ozone interannual variability in the troposphere | |
Liu, Junhua1,2; Rodriguez, Jose M.2; Oman, Luke D.2; Douglass, Anne R.2; Olsen, Mark A.3,4; Hu, Lu5 | |
2020-06-04 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:11页码:6416-6432 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In this study we use ozone and stratospheric ozone tracer simulations from the high-resolution (0.5 degrees x 0.5 degrees) Goddard Earth Observing System, Version 5 (GEOS-5), in a replay mode to study the impact of stratospheric ozone on tropospheric ozone interannual variability (IAV). We use these simulations in conjunction with ozonesonde measurements from 1990 to 2016 during the winter and spring seasons. The simulations include a stratospheric ozone tracer (StratO(3)) to aid in the evaluation of the impact of stratospheric ozone IAV on the IAV of tropospheric ozone at different altitudes and locations. The model is in good agreement with the observed interannual variation in tropospheric ozone, except for the post-Pinatubo period (1992-1994) over the region of North America. Ozonesonde data show a negative ozone anomaly in 1992-1994 following the Pinatubo eruption, with recovery thereafter. The simulated anomaly is only half the magnitude of that observed. Our analysis suggests that the simulated stratosphere-troposphere exchange (STE) flux deduced from the analysis might be too strong over the North American (50-70 degrees N) region after the Mt. Pinatubo eruption in the early 1990s, masking the impact of lower stratospheric ozone concentration on tropospheric ozone. European ozonesonde measurements show a similar but weaker ozone depletion after the Mt. Pinatubo eruption, which is fully reproduced by the model. Analysis based on the stratospheric ozone tracer identifies differences in strength and vertical extent of stratospheric ozone impact on the tropospheric ozone interannual variation (IAV) between North America and Europe. Over North American stations, the StratO3 IAV has a significant impact on tropospheric ozone from the upper to lower troposphere and explains about 60 % and 66 % of the simulated ozone IAV at 400 hPa and similar to 11 % and 34 % at 700 hPa in winter and spring, respectively. Over European stations, the influence is limited to the middle to upper troposphere and becomes much smaller at 700 hPa. The Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2), assimilated fields exhibit strong longitudinal variations over Northern Hemisphere (NH) mid-high latitudes, with lower tropopause height and lower geopotential height over North America than over Europe. These variations associated with the relevant variations in the location of tropospheric jet flows are responsible for the longitudinal differences in the stratospheric ozone impact, with stronger effects over North America than over Europe. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000538495300003 |
WOS关键词 | SATELLITE MEASUREMENTS ; GLOBAL CLIMATOLOGY ; TRANSPORT ; EXCHANGE ; INTRUSIONS ; EMISSIONS ; TRENDS ; GASES ; MODEL ; SIMULATIONS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/273278 |
专题 | 地球科学 |
作者单位 | 1.Univ Space Res Assoc, GESTAR, Columbia, MD 21046 USA; 2.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 3.TriVector Serv Inc, Huntsville, AL USA; 4.NOAA OAR Off Weather & Air Qual, Silver Spring, MD USA; 5.Univ Montana, Dept Chem & Biochem, Missoula, MT 59812 USA |
推荐引用方式 GB/T 7714 | Liu, Junhua,Rodriguez, Jose M.,Oman, Luke D.,et al. Stratospheric impact on the Northern Hemisphere winter and spring ozone interannual variability in the troposphere[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(11):6416-6432. |
APA | Liu, Junhua,Rodriguez, Jose M.,Oman, Luke D.,Douglass, Anne R.,Olsen, Mark A.,&Hu, Lu.(2020).Stratospheric impact on the Northern Hemisphere winter and spring ozone interannual variability in the troposphere.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(11),6416-6432. |
MLA | Liu, Junhua,et al."Stratospheric impact on the Northern Hemisphere winter and spring ozone interannual variability in the troposphere".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.11(2020):6416-6432. |
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