干旱区生态环境知识资源中心(Arid): More Accurate Quantification of Direct Aerosol Radiative Effects Using Vertical Profiles of Single-Scattering Albedo Derived From Tethered Balloon Observations

Arid

DOI	10.1029/2023JD040605
	More Accurate Quantification of Direct Aerosol Radiative Effects Using Vertical Profiles of Single-Scattering Albedo Derived From Tethered Balloon Observations
	Guan, Xu; Tian, Pengfei; Wang, Wenfang; Zhang, Min; Song, Xin; Zhang, Zhida; Zhang, Lei
通讯作者	Tian, PF
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2024
卷号	129 期号:14
英文摘要	Aerosol single-scattering albedo (SSA) is the most critical factor for the accurately calculating of aerosol radiative effects, however, the observation of vertical profiles of SSA is difficult to realize. Current assessments of aerosol radiative effects remain uncertain because of the lack of long-term, high-resolution vertical profiles of SSA observations. High-resolution SSA vertical profiles were observed in a semi-arid region of Northwest China during winter using a tethered balloon. The observed SSA vertical profiles were used to calculate the aerosol direct radiative forcing and radiative heating rates. Significant differences in the calculated radiative forcing were found (e.g., a 48.3% relative difference for the heating effect in the atmosphere at 14:00) between the observed SSA profiles and the constant assumption with SSA = 0.90. Diurnal variations in the vertical distribution of SSA decisively influenced direct radiative forcing of aerosols. Furthermore, high-resolution vertical profiles of absorbing aerosols and meteorological parameters provide robust observational evidence of the heating effect of an elevated absorbing aerosol layer. This study provides a more accurate calculation of aerosol radiative forcing using observed aerosol SSA profiles. The scarcity of single-scattering albedo (SSA) observations is the most critical factor limiting the accurate calculations of aerosol radiative effects. A tethered balloon platform was used to obtain long-term, high-resolution observations of the SSA and estimate aerosols' radiative effects. The relative differences in the heating rate and direct radiative forcing calculations using the observed SSA and a constant assumed SSA (i.e., ignoring the vertical distribution of absorbing aerosols) were quantified. The effects of diurnal variations in the vertical distribution of SSA on aerosol direct radiative forcing are summarized. This study has important scientific implications for assessing the radiative effects of aerosols in semi-arid regions, that are highly sensitive to climate change. Tethered balloon observations acquired high-resolution vertical aerosol single-scattering albedo (SSA) profiles The assumed SSA profiles caused a 48.3% relative error in radiative forcing in the atmosphere compared to the observed profiles at 14:00 A robust observational evidence of atmospheric heating by absorbing aerosols above the boundary layer was provided
英文关键词	absorbing aerosols single-scattering albedo (SSA) vertical distribution tethered balloon direct aerosol radiative forcing
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001272575000001
WOS关键词	BLACK CARBON ; BOUNDARY-LAYER ; ABSORPTION-COEFFICIENT ; MICRO-AETHALOMETER ; LOWER TROPOSPHERE ; POLLUTION ; IMPACT ; CHINA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404523
推荐引用方式 GB/T 7714	Guan, Xu,Tian, Pengfei,Wang, Wenfang,et al. More Accurate Quantification of Direct Aerosol Radiative Effects Using Vertical Profiles of Single-Scattering Albedo Derived From Tethered Balloon Observations[J],2024,129(14).
APA	Guan, Xu.,Tian, Pengfei.,Wang, Wenfang.,Zhang, Min.,Song, Xin.,...&Zhang, Lei.(2024).More Accurate Quantification of Direct Aerosol Radiative Effects Using Vertical Profiles of Single-Scattering Albedo Derived From Tethered Balloon Observations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,129(14).
MLA	Guan, Xu,et al."More Accurate Quantification of Direct Aerosol Radiative Effects Using Vertical Profiles of Single-Scattering Albedo Derived From Tethered Balloon Observations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 129.14(2024).