Observational evidence of particle hygroscopic growth in the upper troposphere-lower stratosphere (UTLS) over the Tibetan Plateau

doi:10.5194/acp-19-8399-2019

	Observational evidence of particle hygroscopic growth in the upper troposphere-lower stratosphere (UTLS) over the Tibetan Plateau
	He, Qianshan 2,3; Ma, Jianzhong 4,5; Zheng, Xiangdong 4,5; Yan, Xiaolu 4,5; Vomel, Holger 6; Wienhold, Frank G.7; Gao, Wei 2,3; Liu, Dongwei 2,3; Shi, Guangming 1; Cheng, Tiantao 8
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2019-07-02
卷号	19 期号:13 页码:8399-8406
ISSN号	1680-7316
DOI	10.5194/acp-19-8399-2019
通讯作者	Ma, Jianzhong(majz@cma.gov.cn)
英文摘要	We measured the vertical profiles of backscatter ratio (BSR) using the balloon-borne, lightweight Compact Optical Backscatter AerosoL Detector (COBALD) instruments above Linzhi, located in the southeastern Tibetan Plateau, in the summer of 2014. An enhanced aerosol layer in the upper troposphere-lower stratosphere (UTLS), with BSR (455 nm) > 1.1 and BSR (940 nm) > 1.4, was observed. The color index (CI) of the enhanced aerosol layer, defined as the ratio of aerosol backscatter ratios (ABSRs) at wavelengths of 940 and 455 nm, varied from 4 to 8, indicating the prevalence of fine particles with a mode radius of less than 0.1 pm. We find that unlike the very small particles (mode radius smaller than 0.04 mu m) at low relative humidity (RHi < 40 %), the relatively large particles in the aerosol layer were generally very hydrophilic as their size increased dramatically with relative humidity. This result indicates that water vapor can play a very important role in increasing the size of fine particles in the UTLS over the Tibetan Plateau. Our observations provide observation-based evidence supporting the idea that aerosol particle hygroscopic growth is an important factor influencing the radiative properties of the Asian Tropopause Aerosol Layer (ATAL) during the Asian summer monsoon.
资助项目	National Natural Science Foundation of China[91637101] ; National Natural Science Foundation of China[91837311] ; National Natural Science Foundation of China[91537213] ; Shanghai Science and Technology Committee Research Project[16ZR1431700]
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000530852700003
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/9880]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Ma, Jianzhong
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China 2.Shanghai Meteorol Serv, Shanghai, Peoples R China 3.Shanghai Key Lab Meteorol & Hlth, Shanghai, Peoples R China 4.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China 5.Chinese Acad Meteorol Sci, CMA Key Lab Atmospher Chem, Beijing, Peoples R China 6.Natl Ctr Atmospher Res, Earth Observing Lab, POB 3000, Boulder, CO 80307 USA 7.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci IAC, Zurich 8092, Switzerland 8.Fudan Univ, Inst Atmospher Sci, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	He, Qianshan,Ma, Jianzhong,Zheng, Xiangdong,et al. Observational evidence of particle hygroscopic growth in the upper troposphere-lower stratosphere (UTLS) over the Tibetan Plateau[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(13):8399-8406.
APA	He, Qianshan.,Ma, Jianzhong.,Zheng, Xiangdong.,Yan, Xiaolu.,Vomel, Holger.,...&Cheng, Tiantao.(2019).Observational evidence of particle hygroscopic growth in the upper troposphere-lower stratosphere (UTLS) over the Tibetan Plateau.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(13),8399-8406.
MLA	He, Qianshan,et al."Observational evidence of particle hygroscopic growth in the upper troposphere-lower stratosphere (UTLS) over the Tibetan Plateau".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.13(2019):8399-8406.