气候变化领域集成服务门户(CCPortal): Sharp increase in Saharan dust intrusions over the western Euro-Mediterranean in February-March 2020-2022 and associated atmospheric circulation

CCPortal

DOI	10.5194/acp-24-4083-2024
	Sharp increase in Saharan dust intrusions over the western Euro-Mediterranean in February-March 2020-2022 and associated atmospheric circulation
	Cuevas-Agullo, Emilio; Barriopedro, David; Garcia, Rosa Delia; Alonso-Perez, Silvia; Gonzalez-Aleman, Juan Jesus; Werner, Ernest; Suarez, David; Bustos, Juan Jose; Garcia-Castrillo, Gerardo; Garcia, Omaira; Barreto, Africa; Basart, Sara
发表日期	2024
ISSN	1680-7316
EISSN	1680-7324
起始页码	24
结束页码	7
卷号	24 期号:7
英文摘要	During the months of February-March (FM) of the 2020-2022 period, several intense dust intrusions from northern Africa affected Europe. The frequency of dust events was exceptional, considering that wintertime is the season with minimum dust activity in the Mediterranean, and some episodes displayed a duration and/or intensity never recorded before, affecting large areas of the western Euro-Mediterranean (WEM) region. The main objective of this work is to construct a catalogue of FM dust events over the WEM for the 2003-2022 period based on satellite aerosol retrievals and to analyse their atmospheric drivers at the synoptic and large scales, paying special attention to the recent 2020-2022 period of high dust activity. Overall, our results indicate large intraseasonal and interannual variability in the occurrence of wintertime dust events over the WEM. Dust events of FM 2020-2022 were characterized by enhanced dust concentration and high maximum altitudes in comparison with those of previous years (2003-2019). WEM dust events are associated with enhanced activity of high-pressure systems over the Euro-Atlantic sector, which favour the obstruction of the westerlies and the occurrence of cut-off lows at subtropical latitudes. However, these high-pressure systems can exhibit a large variety of configurations, including meridional dipole blocking patterns with poleward shifted jets or Mediterranean subtropical ridges with an intensified mid-latitude jet. The former is the dominant favourable pattern for WEM dust occurrence, but the latter was relatively common during the 2020-2022 period.
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001198199000001
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/299563
作者单位	Agencia Estatal de Meteorologia (AEMET); Complutense University of Madrid; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC-UCM - Instituto de Geociencias (IGEO); Universidad de la Laguna; Universidad de la Laguna; Agencia Estatal de Meteorologia (AEMET); Agencia Estatal de Meteorologia (AEMET); Agencia Estatal de Meteorologia (AEMET); Universitat Politecnica de Catalunya; Barcelona Supercomputer Center (BSC-CNS)
推荐引用方式 GB/T 7714	Cuevas-Agullo, Emilio,Barriopedro, David,Garcia, Rosa Delia,et al. Sharp increase in Saharan dust intrusions over the western Euro-Mediterranean in February-March 2020-2022 and associated atmospheric circulation[J],2024,24(7).
APA	Cuevas-Agullo, Emilio.,Barriopedro, David.,Garcia, Rosa Delia.,Alonso-Perez, Silvia.,Gonzalez-Aleman, Juan Jesus.,...&Basart, Sara.(2024).Sharp increase in Saharan dust intrusions over the western Euro-Mediterranean in February-March 2020-2022 and associated atmospheric circulation.ATMOSPHERIC CHEMISTRY AND PHYSICS,24(7).
MLA	Cuevas-Agullo, Emilio,et al."Sharp increase in Saharan dust intrusions over the western Euro-Mediterranean in February-March 2020-2022 and associated atmospheric circulation".ATMOSPHERIC CHEMISTRY AND PHYSICS 24.7(2024).