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DOI	10.5194/acp-20-3357-2020
	Examination of effects of aerosols on a pyroCb and their dependence on fire intensity and aerosol perturbation
	Soo Lee S.; Kablick Iii G.; Li Z.; Hoon Jung C.; Choi Y.-S.; Um J.; Jun Choi W.
发表日期	2020
ISSN	16807316
起始页码	3357
结束页码	3371
卷号	20 期号:6
英文摘要	Using a modeling framework, this study investigates how a pyrocumulonimbus (pyroCb) event influences water vapor concentrations and cirrus-cloud properties near the tropopause, specifically focusing on how fire-produced aerosols affect this role. Results from a case study show that when observed fire intensity is high, there is an insignificant impact of fire-produced aerosols on the development of the pyroCb and associated changes in water vapor and cirrus clouds near the tropopause. However, as fire intensity weakens, effects of those aerosols on microphysical variables and processes such as droplet size and autoconversion increase. Due to this, aerosol-induced invigoration of convection is significant for pyroCb with weak-intensity fires and associated weak surface heat fluxes. This leads to a situation where there is a greater aerosol effect on the transport of water vapor to the upper troposphere and the production of cirrus clouds with weak-intensity fires, whereas this effect is muted with strong-intensity fires. © 2020 Georg Thieme Verlag. All rights reserved.
关键词	aerosol atmospheric modeling cirrus concentration (composition)cumulonimbus perturbation tropopause water vapor wildfire
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132155
推荐引用方式 GB/T 7714	Soo Lee S.,Kablick Iii G.,Li Z.,et al. Examination of effects of aerosols on a pyroCb and their dependence on fire intensity and aerosol perturbation[J]. Atmospheric Chemistry and Physics,2020,20(6).
APA	Soo Lee S..,Kablick Iii G..,Li Z..,Hoon Jung C..,Choi Y.-S..,...&Jun Choi W..(2020).Examination of effects of aerosols on a pyroCb and their dependence on fire intensity and aerosol perturbation.,20(6).
MLA	Soo Lee S.,et al."Examination of effects of aerosols on a pyroCb and their dependence on fire intensity and aerosol perturbation".20.6(2020).