Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-9733-2019 |
Variations in the vertical profile of ozone at four high-latitude Arctic sites from 2005 to 2017 | |
Shams, Shima Bahramvash1; Walden, Von P.1; Petropavlovskikh, Irina2,3; Tarasick, David4; Kivi, Rigel5; Oltmans, Samuel2; Johnson, Bryan2; Cullis, Patrick2,3; Sterling, Chance W.2,3; Tholix, Laura6; Errera, Quentin7 | |
2019-08-02 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:15页码:9733-9751 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; Finland; Belgium |
英文摘要 | Understanding variations in atmospheric ozone in the Arctic is difficult because there are only a few long-term records of vertical ozone profiles in this region. We present 12 years of ozone profiles from February 2005 to February 2017 at four sites: Summit Station, Greenland; Ny-Alesund, Svalbard, Norway; and Alert and Eureka, Nunavut, Canada. These profiles are created by combining ozonesonde measurements with ozone profile retrievals using data from the Microwave Limb Sounder (MLS). This combination creates a high-quality dataset with low uncertainty values by relying on in situ measurements of the maximum altitude of the ozonesondes (similar to 30 km) and satellite retrievals in the upper atmosphere (up to 60 km). For each station, the total column ozone (TCO) and the partial column ozone (PCO) in four atmospheric layers (troposphere to upper stratosphere) are analyzed. Overall, the seasonal cycles are similar at these sites. However, the TCO over Ny-Alesund starts to decline 2 months later than at the other sites. In summer, the PCO in the upper stratosphere over Summit Station is slightly higher than at the other sites and exhibits a higher standard deviation. The decrease in PCO in the middle and upper stratosphere during fall is also lower over Summit Station. The maximum value of the lower- and middle-stratospheric PCO is reached earlier in the year over Eureka. Trend analysis over the 12-year period shows significant trends in most of the layers over Summit and Ny-Alesund during summer and fall. To understand deseasonalized ozone variations, we identify the most important dynamical drivers of Arctic ozone at each level. These drivers are chosen based on mutual selected proxies at the four sites using stepwise multiple regression (SMR) analysis of various dynamical parameters with deseasonalized data. The final regression model is able to explain more than 80 % of the TCO and more than 70 % of the PCO in almost all of the layers. The regression model provides the greatest explanatory value in the middle stratosphere. The important proxies of the deseasonalized ozone time series at the four sites are tropopause pressure (TP) and equivalent latitude (EQL) at 370 K in the troposphere, the quasi-biennial oscillation (QBO) in the troposphere and lower stratosphere, the equivalent latitude at 550 K in the middle and upper stratosphere, and the eddy heat flux (EHF) and volume of polar stratospheric clouds throughout the stratosphere. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000478696200001 |
WOS关键词 | QUASI-BIENNIAL OSCILLATION ; STRATOSPHERIC OZONE ; EQUIVALENT LATITUDE ; TROPOSPHERIC OZONE ; TRENDS ; CIRCULATION ; TRANSPORT ; COLUMN ; CLIMATOLOGY ; VARIABILITY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/185901 |
专题 | 地球科学 |
作者单位 | 1.Washington State Univ, Dept Civil & Environm Engn, Lab Atmospher Res, Pullman, WA 99164 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 3.NOAA, Global Monitoring Div, Boulder, CO 80305 USA; 4.Environm Canada, 4905 Dufferin St, Toronto, ON M3H 5T4, Canada; 5.Finnish Meteorol Inst, Space & Earth Observat Ctr, Sodankyla, Finland; 6.FMI, Climate Res, Helsinki, Finland; 7.Belgian Inst Space Aeron, Div Atmospher Composit, Uccle, Belgium |
推荐引用方式 GB/T 7714 | Shams, Shima Bahramvash,Walden, Von P.,Petropavlovskikh, Irina,et al. Variations in the vertical profile of ozone at four high-latitude Arctic sites from 2005 to 2017[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(15):9733-9751. |
APA | Shams, Shima Bahramvash.,Walden, Von P..,Petropavlovskikh, Irina.,Tarasick, David.,Kivi, Rigel.,...&Errera, Quentin.(2019).Variations in the vertical profile of ozone at four high-latitude Arctic sites from 2005 to 2017.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(15),9733-9751. |
MLA | Shams, Shima Bahramvash,et al."Variations in the vertical profile of ozone at four high-latitude Arctic sites from 2005 to 2017".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.15(2019):9733-9751. |
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