气候变化领域集成服务门户(CCPortal): Light-Absorbing Impurities on Urumqi Glacier No.1 in Eastern Tien Shan: Concentrations and Implications for Radiative Forcing Estimates During the Ablation Period

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DOI	10.3389/feart.2021.524963
	Light-Absorbing Impurities on Urumqi Glacier No.1 in Eastern Tien Shan: Concentrations and Implications for Radiative Forcing Estimates During the Ablation Period
	Zhang, Xin; Li, Zhongqin; You, Xiaoni; She, Yuanyang; Song, Mengyuan; Zhou, Xi
通讯作者	You, XN (通讯作者)，Tianshui Normal Univ, Coll Resources & Environm Engn, Tianshui, Peoples R China.
发表日期	2021
EISSN	2296-6463
卷号	9
英文摘要	Light-absorbing impurities (LAIs) in surface snow and snow pits together with LAIs' concentrations and their impacts on albedo reduction and sequent radiative forcing (RF) have been investigated in the past. Here, we focused on temporal-spatial distributions of LAIs, especially on the albedo reduction and radiative forcing caused by the LAIs in Urumqi Glacier No.1. Various snow samples, including fresh snow, aged snow, and granular ice were collected between 3,770 and 4,105 m a.s.l of Urumqi Glacier No.1 during the snowmelt season of 2015. For the surface snow samples, BC and OC concentrations were 582 and 1,590 ng g(-1), respectively. Mineral dust (MD) concentrations were 110 mu g g(-1). Due to the different ablation status of the glacier surface, LAIs accumulate at the lower altitude of the glacier. The estimation by the Snow, Ice, and Aerosol Radiative (SNICAR) model indicated that BC and MD could reduce the albedo by 12.8 and 10.3% in fresh snow, aged snow by 23.3 and 5.9%, and granular ice by 22.4 and 26.7%, respectively. The RF of MD was higher than that of BC in fresh snow and granular ice, whereas the RF of BC exceeded MD in aged snow. These findings suggested that BC was the main forcing factor in snow melting and dust was the main forcing factor in accelerating glacier melt.
关键词	BLACK CARBON DEPOSITION SNOW ALBEDO REDUCTION TIBETAN PLATEAU SEASONAL SNOW MIXING STATE GRAIN SHAPE DUST ICE PARTICLES INSIGHTS
英文关键词	Urumqi Glacier No; 1; surface snow; radiative forcing (RF); albedo; light-absorbing impurities (LAIs)
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000710941400001
来源期刊	FRONTIERS IN EARTH SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254554
作者单位	[Zhang, Xin; Li, Zhongqin; Song, Mengyuan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China; [You, Xiaoni] Tianshui Normal Univ, Coll Resources & Environm Engn, Tianshui, Peoples R China; [She, Yuanyang] Longnan Teachers Coll, Sch Hist Culture & Tourism, Longnan, Peoples R China; [Zhou, Xi] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xin,Li, Zhongqin,You, Xiaoni,et al. Light-Absorbing Impurities on Urumqi Glacier No.1 in Eastern Tien Shan: Concentrations and Implications for Radiative Forcing Estimates During the Ablation Period[J]. 中国科学院西北生态环境资源研究院,2021,9.
APA	Zhang, Xin,Li, Zhongqin,You, Xiaoni,She, Yuanyang,Song, Mengyuan,&Zhou, Xi.(2021).Light-Absorbing Impurities on Urumqi Glacier No.1 in Eastern Tien Shan: Concentrations and Implications for Radiative Forcing Estimates During the Ablation Period.FRONTIERS IN EARTH SCIENCE,9.
MLA	Zhang, Xin,et al."Light-Absorbing Impurities on Urumqi Glacier No.1 in Eastern Tien Shan: Concentrations and Implications for Radiative Forcing Estimates During the Ablation Period".FRONTIERS IN EARTH SCIENCE 9(2021).