气候变化领域集成服务门户(CCPortal): Enviro-HIRLAM model estimates of elevated black carbon pollution overUkraine resulted from forest fires

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DOI	10.5194/acp-22-15777-2022
	Enviro-HIRLAM model estimates of elevated black carbon pollution overUkraine resulted from forest fires
	Savenets, Mykhailo; Pysarenko, Larysa; Krakovska, Svitlana; Mahura, Alexander; Petaejae, Tuukka
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	15777
结束页码	15791
卷号	22 期号:24 页码:15
英文摘要	Biomass burning is one of the biggest sources of atmospheric black carbon (BC), which negatively impacts human health and contributes to climate forcing. In this work, we explore the horizontal and vertical variability of BC concentrations over Ukraine during wildfires in August 2010. Using the Enviro-HIRLAM modelling framework, the BC atmospheric transport was modelled for coarse, accumulation, and Aitken mode aerosol particles emitted by the wildfire. Elevated pollution levels were observed within the boundary layer. The influence of the BC emissions from the wildfire was identified up to 550 hPa level for the coarse and accumulation modes and at distances of about 2000 km from the fire areas. BC was mainly transported in the lowest 3 km layer and mainly deposited at night and in the morning hours due to the formation of strong surface temperature inversions. As modelling is the only available source of BC data in Ukraine, our results were compared with ground-level measurements of dust, which showed an increase in concentration of up to 73 % during wildfires in comparison to average values. The BC contribution was found to be 10 %-20 % of the total aerosol mass near the wildfires in the lowest 2 km layer. At a distance, BC contribution exceeded 10 % only in urban areas. In the areas with a high BC content represented by both accumulation and coarse modes, downwelling surface long-wave radiation increased up to 20 W m(-2), and 2 m air temperature increased by 1-4 ? during the midday hours. The findings of this case study can help to understand the behaviour of BC distribution and possible direct aerosol effects during anticyclonic conditions, which are often observed in mid-latitudes in the summer and lead to wildfire occurrences.
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:000895877800001
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/273729
作者单位	National Academy of Sciences Ukraine; Ukrainian Hydrometeorological Institute of the State Emergency Service of Ukraine & National Academy of Sciences of Ukraine
推荐引用方式 GB/T 7714	Savenets, Mykhailo,Pysarenko, Larysa,Krakovska, Svitlana,et al. Enviro-HIRLAM model estimates of elevated black carbon pollution overUkraine resulted from forest fires[J],2022,22(24):15.
APA	Savenets, Mykhailo,Pysarenko, Larysa,Krakovska, Svitlana,Mahura, Alexander,&Petaejae, Tuukka.(2022).Enviro-HIRLAM model estimates of elevated black carbon pollution overUkraine resulted from forest fires.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(24),15.
MLA	Savenets, Mykhailo,et al."Enviro-HIRLAM model estimates of elevated black carbon pollution overUkraine resulted from forest fires".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.24(2022):15.