干旱区生态环境知识资源中心(Arid): Surface radiation characteristics and downward cloud radiative forcing in southern Xinjiang during summer 2019

Arid

DOI	10.1007/s00703-021-00847-5
	Surface radiation characteristics and downward cloud radiative forcing in southern Xinjiang during summer 2019
	Bi, Jianrong; Zuo, Dapeng; Yang, Fan; Zhang, Linhan; Huang, Zhongwei; Wang, Tianhe
通讯作者	Bi, JR (corresponding author), Lanzhou Univ, Coll Atmospher Sci, Key Lab Semi Arid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China. ; Bi, JR (corresponding author), Lanzhou Univ, Collaborat Innovat Ctr Western Ecol Safety, Lanzhou 730000, Peoples R China. ; Bi, JR (corresponding author), Gansu Prov Field Sci Observat & Res Stn Semi Arid, Lanzhou 730000, Peoples R China.
来源期刊	METEOROLOGY AND ATMOSPHERIC PHYSICS
ISSN	0177-7971
EISSN	1436-5065
出版年	2022
卷号	134 期号:1
英文摘要	This study analyzed the surface radiation characteristics and evaluated downward cloud radiative forcing (CRF) in southern Xinjiang during summer 2019. Surface radiation fluxes show prominent day-to-day and diurnal variations, with the maximums of 915.6, 921.2, and 121.9 Wm(-2), respectively, for total, direct, and diffuse shortwave radiations under cloudless conditions. Cloud layer or dust layer could significantly impede the incident solar irradiance and moderately reduce the emission of longwave radiation to space, and hence bring a strong downward negative radiative impact. A rigorous four-step screening algorithm was applied to effectively identify the clear-sky periods based on 1-min total and diffuse shortwave irradiances. The clear-sky shortwave (SW) radiation is empirically fitted using a power law equation and cosine of solar zenith angle, and the clear-sky longwave (LW) radiation is calculated via the average diurnal cycles of all datasets of detected 1-min LW radiation under cloudless conditions. The 24-h daily mean CRFs of SW are largely negative (- 204.1 to - 3.3 Wm(-2)), and corresponding LW are moderately positive (- 1.5 to + 70.4 Wm(-2)), which coincide with the overcast conditions or large cloud cover amounts. The overall averages of SW and LW CRFs and net cloud effect are - 69.7 +/- 62.3, + 29.5 +/- 22.2, and - 40.1 +/- 42.1 Wm(-2), respectively, implying that clouds have a net cooling effect on the regional climate. Our results are consistent with the summer mean values in northern China, but less than those in southern China, and greater than those of the global mean values. Such negative cloud radiative forcing would partly counteract the global warming induced by greenhouse gases and modulate the Earth's radiation budget balance.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000722618600002
WOS关键词	SOLAR-RADIATION ; TAKLIMAKAN DESERT ; HINTERLAND ; TRENDS
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/2XILL650/374530
作者单位	[Bi, Jianrong; Zuo, Dapeng; Yang, Fan; Zhang, Linhan; Huang, Zhongwei; Wang, Tianhe] Lanzhou Univ, Coll Atmospher Sci, Key Lab Semi Arid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China; [Bi, Jianrong; Huang, Zhongwei] Lanzhou Univ, Collaborat Innovat Ctr Western Ecol Safety, Lanzhou 730000, Peoples R China; [Bi, Jianrong; Zuo, Dapeng; Zhang, Linhan; Huang, Zhongwei; Wang, Tianhe] Gansu Prov Field Sci Observat & Res Stn Semi Arid, Lanzhou 730000, Peoples R China; [Yang, Fan] Inst Desert Meteorol, China Meteorol Adm CMA, Taklimakan Desert Meteorol Field Expt Stn, Urumqi 830002, Peoples R China
推荐引用方式 GB/T 7714	Bi, Jianrong,Zuo, Dapeng,Yang, Fan,et al. Surface radiation characteristics and downward cloud radiative forcing in southern Xinjiang during summer 2019[J],2022,134(1).
APA	Bi, Jianrong,Zuo, Dapeng,Yang, Fan,Zhang, Linhan,Huang, Zhongwei,&Wang, Tianhe.(2022).Surface radiation characteristics and downward cloud radiative forcing in southern Xinjiang during summer 2019.METEOROLOGY AND ATMOSPHERIC PHYSICS,134(1).
MLA	Bi, Jianrong,et al."Surface radiation characteristics and downward cloud radiative forcing in southern Xinjiang during summer 2019".METEOROLOGY AND ATMOSPHERIC PHYSICS 134.1(2022).