气候变化领域集成服务门户(CCPortal): The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region

CCPortal

DOI	10.5194/acp-21-5739-2021
	The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region
	Zhao D.; Xin J.; Gong C.; Quan J.; Wang Y.; Tang G.; Ma Y.; Dai L.; Wu X.; Liu G.; Ma Y.
发表日期	2021
ISSN	1680-7316
起始页码	5739
结束页码	5753
卷号	21 期号:7
英文摘要	Recently, there has been increasing interest in the relation between particulate matter (PM) pollution and atmospheric-boundary-layer (ABL) structure. This study aimed to qualitatively assess the interaction between PM and ABL structure in essence and further quantitatively estimate aerosol radiative forcing (ARF) effects on the ABL structure. Multi-period comparative analysis indicated that the key to determining whether haze outbreak or dissipation occurs is whether the ABL structure satisfies the relevant conditions. However, the ABL structure change was in turn highly related to the PM level and ARF. jSFC ATMj (SFC and ATM are the ARFs at the surface and interior of the atmospheric column, respectively) is the absolute difference between ground and atmosphere layer ARFs, and the jSFC ATMj change is linearly related to the PM concentrations. However, the influence of ARF on the boundary layer structure is nonlinear. With increasing jSFC ATMj, the turbulence kinetic energy (TKE) level exponentially decreased, which was notable in the lower layers or ABL, but disappeared at high altitudes or above the ABL. Moreover, the ARF effects threshold on the ABL structure was determined for the first time, namely once jSFC ATMj exceeded 55Wm 2, the ABL structure tends to quickly stabilize and thereafter change little with increasing ARF. The threshold of the ARF effects on the boundary layer structure could provide useful information for relevant atmosphericenvironment improvement measures and policies, such as formulating phased air pollution control objectives. © 2021 BMJ Publishing Group. All rights reserved.
语种	英语
scopus关键词	aerosol; atmospheric pollution; atmospheric structure; boundary layer; particulate matter; radiative forcing
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/246973
作者单位	State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Institute of Arid Meteorology, China Meteorological Administration, Lanzhou, 730020, China; Institute of Urban Meteorology, Chinese Meteorological Administration, Beijing, 100089, China
推荐引用方式 GB/T 7714	Zhao D.,Xin J.,Gong C.,et al. The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region[J],2021,21(7).
APA	Zhao D..,Xin J..,Gong C..,Quan J..,Wang Y..,...&Ma Y..(2021).The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(7).
MLA	Zhao D.,et al."The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.7(2021).