气候变化领域集成服务门户(CCPortal): A process-oriented evaluation of CAMS reanalysis ozone during tropopause fowls over Europe for the period 2003-2018

CCPortal

DOI	10.5194/acp-22-6275-2022
	A process-oriented evaluation of CAMS reanalysis ozone during tropopause fowls over Europe for the period 2003-2018
	Akritidis, Dimitris; Pozzer, Andrea; Flemming, Johannes; Inness, Antje; Nedelec, Philippe; Zanis, Prodromos
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	6275
结束页码	6289
卷号	22 期号:9 页码:15
英文摘要	Tropopause folds are the key process underlying stratosphere-to-troposphere transport (STT) of ozone, and thus they affect tropospheric ozone levels and variability. In the present study we perform a process-oriented evaluation of Copernicus Atmosphere Monitoring Service (CAMS) reanalysis (CAMSRA) O-3 during folding events over Europe and for the time period from 2003 to 2018. A 3-D labeling algorithm is applied to detect tropopause folds in CAMSRA, while ozonesonde data from WOUDC (World Ozone and Ultraviolet Radiation Data Centre) and aircraft measurements from LAGOS (In-service Aircraft for a Global Observing System) are used for CAMSRA O-3 evaluation. The profiles of observed and CAMSRA O-3 concentrations indicate that CAMSRA reproduces the observed 03 increases in the troposphere during the examined folding events. Nevertheless, at most of the examined sites, CAMSRA overestimates the observed O-3 concentrations, mostly at the upper portion of the observed increases, with a median fractional gross error (FGE) among the examined sites > 0.2 above 400 hPa. The use of a control run without data assimilation reveals that the aforementioned overestimation of CAMSRA O-3 arises from the data assimilation implementation. Overall, although data assimilation assists CAMSRA O-3 to follow the observed O-3 enhancements in the troposphere during the STT events, it introduces biases in the upper troposphere resulting in no clear quantitative improvement compared to the control run without data assimilation. Less biased assimilated O-3 products, with finer vertical resolution in the troposphere, in addition to higher IFS (Integrated Forecasting System) vertical resolution, are expected to provide a better representation of O-3 variability during tropopause folds.
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:000795939100001
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/273337
作者单位	Aristotle University of Thessaloniki; Max Planck Society; European Centre for Medium-Range Weather Forecasts (ECMWF); Centre National de la Recherche Scientifique (CNRS); Institut de Recherche pour le Developpement (IRD); Universite de Toulouse; Universite Toulouse III - Paul Sabatier
推荐引用方式 GB/T 7714	Akritidis, Dimitris,Pozzer, Andrea,Flemming, Johannes,et al. A process-oriented evaluation of CAMS reanalysis ozone during tropopause fowls over Europe for the period 2003-2018[J],2022,22(9):15.
APA	Akritidis, Dimitris,Pozzer, Andrea,Flemming, Johannes,Inness, Antje,Nedelec, Philippe,&Zanis, Prodromos.(2022).A process-oriented evaluation of CAMS reanalysis ozone during tropopause fowls over Europe for the period 2003-2018.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(9),15.
MLA	Akritidis, Dimitris,et al."A process-oriented evaluation of CAMS reanalysis ozone during tropopause fowls over Europe for the period 2003-2018".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.9(2022):15.