气候变化领域集成服务门户(CCPortal): Instant and delayed effects of March biomass burning aerosols over the Indochina Peninsula

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DOI	10.5194/acp-22-15425-2022
	Instant and delayed effects of March biomass burning aerosols over the Indochina Peninsula
	Zhu, Anbao; Xu, Haiming; Deng, Jiechun; Ma, Jing; Hua, Shaofeng
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	15425
结束页码	15447
卷号	22 期号:23 页码:23
英文摘要	By analyzing observations and simulations from the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem), weinvestigated instant and delayed responses of large-scale atmosphericcirculations and precipitation to biomass burning (BB) aerosols over theIndochina Peninsula (ICP) in the peak emission of March. The results showthat the BB aerosols inhibit precipitation over the ICP in March and promote precipitation from early April to mid April. Specifically, the March BB aerosols over the ICP can induce mid- to lower-tropospheric heating and planetary boundary layer cooling to enhance local atmospheric stability; meanwhile, the perturbation heating can trigger an anomalous low in thelower troposphere to moisten the mid troposphere. However, the convectionsuppression due to the stabilized atmosphere dominates over the favorablewater-vapor condition induced by large-scale circulation responses, leadingto overall reduced precipitation over the ICP in March. For the delayed effect, the anomalous low can provide more water vapor as the monsoonadvances in early April, although it becomes much weaker without BB aerosols' strong heating. On the other hand, the convective instabilityabove 850 hPa is enhanced by more water vapor, resulting in enhancedprecipitation over the ICP, northern South China Sea, and southern China.Thereafter, the condensational latent heating gradually takes over from theBB aerosol radiative heating, acting as the main driver for maintaining theanomalous circulation and thus the delayed effect in mid April.
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:000893909400001
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/273357
作者单位	Nanjing University of Information Science & Technology; Nanjing University of Information Science & Technology
推荐引用方式 GB/T 7714	Zhu, Anbao,Xu, Haiming,Deng, Jiechun,et al. Instant and delayed effects of March biomass burning aerosols over the Indochina Peninsula[J],2022,22(23):23.
APA	Zhu, Anbao,Xu, Haiming,Deng, Jiechun,Ma, Jing,&Hua, Shaofeng.(2022).Instant and delayed effects of March biomass burning aerosols over the Indochina Peninsula.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(23),23.
MLA	Zhu, Anbao,et al."Instant and delayed effects of March biomass burning aerosols over the Indochina Peninsula".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.23(2022):23.