气候变化领域集成服务门户(CCPortal): Aerosol radiative impact during the summer 2019 heatwave produced partly by an inter-continental Saharan dust outbreak-Part 1: Short-wave dust direct radiative effect

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DOI	10.5194/acp-21-6455-2021
	Aerosol radiative impact during the summer 2019 heatwave produced partly by an inter-continental Saharan dust outbreak-Part 1: Short-wave dust direct radiative effect
	Córdoba-Jabonero C.; Sicard M.; López-Cayuela M.-A.; Ansmann A.; Comerón A.; Zorzano M.-P.; Rodríguez-Gómez A.; Muñoz-Porcar C.
发表日期	2021
ISSN	1680-7316
起始页码	6455
结束页码	6479
卷号	21 期号:8
英文摘要	The short-wave (SW) direct radiative effect (DRE) during the summer 2019 heatwave produced partly by a mod erate, long-lasting Saharan dust outbreak over Europe is anal ysed in this study. Two European sites (periods) are consid ered: Barcelona, Spain (23 30 June), and Leipzig, Germany (29 and 30 June), 1350 km apart from each other. Major data are obtained from AERONET and polarised Micro-Pulse Li dar (P-MPL) observations. Modelling is used to describe the different dust pathways, as observed at both sites. The coarse dust (Dc) and fine dust (Df) components (with total dust, DD = Dc + Df) are identified in the profiles of the total par ticle backscatter coefficient using the POLIPHON (POlarisa tion LIdar PHOtometer Networking) method in synergy with P-MPL measurements. This information is used to calculate the relative mass loading and the centre-of-mass height, as well as the contribution of each dust mode to the total dust DRE. Several aspects of the ageing of dust are put forward. The mean dust optical depth and its Df/DD ratios are, re spectively, 0.153 and 24 % in Barcelona and 0.039 and 38 % in Leipzig; this Df increase in Leipzig is attributed to a longer dust transport path in comparison to Barcelona. The dust produced a cooling effect on the surface with a mean daily DRE of-9.1 and-02.5 Wm-2 , respectively, in Barcelona and Leipzig, but the Df/DD DRE ratio is larger for Leipzig (52 %) than for Barcelona (37 %). Cooling is also observed at the top of the atmosphere (TOA), although less intense than on the surface. However, the Df/DD DRE ratio at the TOA is even higher (45 % and 60 %, respectively, in Barcelona and Leipzig) than on the surface. Despite the predominance of Dc particles under dusty conditions, the SW radiative im pact of Df particles can be comparable to, even higher than, that induced by the Dc ones. In particular, the Df/DD DRE ratio in Barcelona increases by +2.4 % d-1 (surface) and +2.9 % d-1 (TOA) during the dusty period. This study is completed by a second paper about the long-wave and net radiative effects. These results are especially relevant for the next ESA EarthCARE mission (planned in 2022) as it is de voted to aerosol cloud radiation interaction research. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol composition; aerosol formation; annual variation; dust; lidar; long range transport; optical depth; radiative forcing; satellite data; satellite imagery; shortwave radiation; Barcelona [Catalonia]; Catalonia; Spain
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/246934
作者单位	Instituto Nacional de Técnica Aeroespacial (INTA), Atmospheric Research and Instrumentation Branch, Torrejón de Ardoz, Madrid, 28850, Spain; CommSensLab, Signal Theory and Communications Department, Universitat Politècnica de Catalunya (UPC), Barcelona, 08034, Spain; Ciències i Tecnologies de l'Espai-Centre de Recerca de l'Aeronàutica i de l'Espai, Institut d'Estudis Espacials de Catalunya (CTE-CRAE/IEEC), Universitat Politècnica de Catalunya (UPC), Barcelona, 08034, Spain; Remote Sensing of Atmospheric Processes Department, Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, 04318, Germany; Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Ctra. Ajalvir, km. 4, Madrid, 28850, Spain; School of Geosciences, University of Aberdeen, Aberdeen, AB24 3FX, United Kingdom
推荐引用方式 GB/T 7714	Córdoba-Jabonero C.,Sicard M.,López-Cayuela M.-A.,et al. Aerosol radiative impact during the summer 2019 heatwave produced partly by an inter-continental Saharan dust outbreak-Part 1: Short-wave dust direct radiative effect[J],2021,21(8).
APA	Córdoba-Jabonero C..,Sicard M..,López-Cayuela M.-A..,Ansmann A..,Comerón A..,...&Muñoz-Porcar C..(2021).Aerosol radiative impact during the summer 2019 heatwave produced partly by an inter-continental Saharan dust outbreak-Part 1: Short-wave dust direct radiative effect.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(8).
MLA	Córdoba-Jabonero C.,et al."Aerosol radiative impact during the summer 2019 heatwave produced partly by an inter-continental Saharan dust outbreak-Part 1: Short-wave dust direct radiative effect".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.8(2021).