气候变化领域集成服务门户(CCPortal): Precipitation response to aerosol-radiation and aerosol-cloud interactions in regional climate simulations over Europe

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DOI	10.5194/acp-21-415-2021
	Precipitation response to aerosol-radiation and aerosol-cloud interactions in regional climate simulations over Europe
	Lopez-Romero J.M.; Pedro Montávez J.; Jerez S.; Lorente-Plazas R.; Palacios-Peña L.; Jiménez-Guerrero P.
发表日期	2021
ISSN	1680-7316
起始页码	415
结束页码	430
卷号	21 期号:1
英文摘要	The effect of aerosols on regional climate simulations presents large uncertainties due to their complex and non-linear interactions with a wide variety of factors, including aerosol radiation (ARI) and aerosol cloud (ACI) interactions. These interactions are strongly conditioned by the meteorological situation and type of aerosol, but, despite their increase, only a limited number of studies have covered this topic from a regional and climatic perspective. This contribution thus aims to quantify the impacts on precipitation of the inclusion of ARI and ACI processes in regional climate simulations driven by ERA20C reanalysis. A series of regional climatic simulations (for the period 1991-2010) for the Euro-CORDEX domain were conducted including ARI and ARI+ACI (ARCI), establishing as a reference a simulation where aerosols were not included interactively (BASE). The results show that the effects of ARI and ACI on time-mean spatially averaged precipitation over the whole domain are limited. However, a spatial redistribution of recipitation occurs when the ARI and ACI processes are introduced into the model, as well do changes in the precipitation intensity regimes. The main differences with respect to the base-case simulations occur in central Europe, where a decrease in precipitation is associated with a depletion in the number of rainy days and clouds at low level (CLL). This reduction in precipitation presents a strong correlation with the ratio PM2.5/PM10, since the decrease is especially intense during those events with high values of that ratio (pointing to high levels of anthropogenic aerosols) over central Europe. The precipitation decrease occurs for all ranges of precipitation rates. On the other hand, the model produces an increase in precipitation over the eastern Mediterranean basin associated with an increase in clouds and rainy days when ACIs are implemented. Here, the change is caused by the high presence ofPM10(low PM2.5/PM10 ratios, pointing to natural aerosols). In this case, the higher amount of precipitation affects only days with low rates of precipitation. Finally, there are some disperse areas where the inclusion of aerosols leads to an increase in precipitation, especially for moderate and high precipitation rates. © 2021 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	aerosol; climate modeling; precipitation (climatology); radiative forcing; regional climate; spatial distribution; volcanic cloud; Europe
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/247230
作者单位	Physics of the Earth, Regional Campus of International Excellence (CEIR), Campus Mare Nostrum, University of Murcia, Murcia, 30100, Spain; Department of Meteorology, Meteored, Murcia, 30893, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, 30120, Spain
推荐引用方式 GB/T 7714	Lopez-Romero J.M.,Pedro Montávez J.,Jerez S.,et al. Precipitation response to aerosol-radiation and aerosol-cloud interactions in regional climate simulations over Europe[J],2021,21(1).
APA	Lopez-Romero J.M.,Pedro Montávez J.,Jerez S.,Lorente-Plazas R.,Palacios-Peña L.,&Jiménez-Guerrero P..(2021).Precipitation response to aerosol-radiation and aerosol-cloud interactions in regional climate simulations over Europe.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(1).
MLA	Lopez-Romero J.M.,et al."Precipitation response to aerosol-radiation and aerosol-cloud interactions in regional climate simulations over Europe".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.1(2021).