气候变化领域集成服务门户(CCPortal): Global, regional and seasonal analysis of total ozone trends derived from the 1995-2020 GTO-ECV climate data record

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DOI	10.5194/acp-22-6861-2022
	Global, regional and seasonal analysis of total ozone trends derived from the 1995-2020 GTO-ECV climate data record
	Coldewey-Egbers, Melanie; Loyola, Diego G.; Lerot, Christophe; Van Roozendael, Michel
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	6861
结束页码	6878
卷号	22 期号:10 页码:18
英文摘要	We present an updated perspective on near-global total ozone trends for the period 1995-2020. We use the GOME-type (Global Ozone Monitoring Experiment) Total Ozone Essential Climate Variable (GTO-ECV) satellite data record which has been extended and generated as part of the European Space Agency's Climate Change Initiative (ESA-CCI) and European Union Copernicus Climate Change Service (EU-C3S) ozone projects. The focus of our work is to examine the regional patterns and seasonal dependency of the ozone trend. In the Southern Hemisphere we found regions that indicate statistically significant positive trends increasing from 0.6 +/- 0.5(2 sigma) % per decade in the subtropics to 1.0 +/- 0.9 % per decade in the middle latitudes and 2.8 +/- 2.6 % per decade in the latitude band 60-70 degrees S. In the middle latitudes of the Northern Hemisphere the trend exhibits distinct regional patterns, i.e., latitudinal and longitudinal structures. Significant positive trends (similar to 1.5 +/- 1.0 % per decade) over the North Atlantic region, as well as barely significant negative trends (-1.0 +/- 1.0 % per decade) over eastern Europe, were found. Moreover, these trends correlate with long-term changes in tropopause pressure. Total ozone trends in the tropics are not statistically significant. Regarding the seasonal dependence of the trends we found only very small variations over the course of the year. However, we identified different behavior depending on latitude. In the latitude band 40-70 degrees N the positive trend maximizes in boreal winter from December to February. In the middle latitudes of the Southern Hemisphere (35-50 degrees S) the trend is maximum from March to May. Further south toward the high latitudes (55-70 degrees S) the trend exhibits a relatively strong seasonal cycle which varies from 2 % per decade in December and January to 3.8 % per decade in June and July.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000799919600001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273558
作者单位	Helmholtz Association; German Aerospace Centre (DLR)
推荐引用方式 GB/T 7714	Coldewey-Egbers, Melanie,Loyola, Diego G.,Lerot, Christophe,et al. Global, regional and seasonal analysis of total ozone trends derived from the 1995-2020 GTO-ECV climate data record[J],2022,22(10):18.
APA	Coldewey-Egbers, Melanie,Loyola, Diego G.,Lerot, Christophe,&Van Roozendael, Michel.(2022).Global, regional and seasonal analysis of total ozone trends derived from the 1995-2020 GTO-ECV climate data record.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(10),18.
MLA	Coldewey-Egbers, Melanie,et al."Global, regional and seasonal analysis of total ozone trends derived from the 1995-2020 GTO-ECV climate data record".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.10(2022):18.