干旱区生态环境知识资源中心(Arid): Light-absorbing impurities on Keqikaer Glacier in western Tien Shan: concentrations and potential impact on albedo reduction

Arid

DOI	10.3724/SP.J.1226.2017.00097
	Light-absorbing impurities on Keqikaer Glacier in western Tien Shan: concentrations and potential impact on albedo reduction
	Zhang, YuLan; Kang, ShiChang; Xu, Min; Sprenger, Michael; Gao, TanGuang; Cong, ZhiYuan; Li, ChaoLiu; Guo, JunMing; Xu, ZhiQiang; Li, Yang; Li, Gang; Li, XiaoFei; Liu, YaJun; Han, HaiDong
通讯作者	Kang, SC
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2017
卷号	9 期号:2 页码:97-111
英文摘要	Light-absorbing impurities on glaciers are important factors that influence glacial surface albedo and accelerate glacier melt. In this study, the quantity of light-absorbing impurities on Keqikaer Glacier in western Tien Shan, Central Asia, was measured. We found that the average concentrations of black carbon was 2,180 ng/g, with a range from 250 ng/g to more than 10,000 ng/g. The average concentrations of organic carbon and mineral dust were 1,738 ng/g and 194 mu g/g, respectively. Based on simulations performed with the Snow Ice Aerosol Radiative model simulations, black carbon and dust are responsible for approximately 64% and 9%, respectively, of the albedo reduction, and are associated with instantaneous radiative forcing of 323.18 W/m(2) (ranging from 142.16 to 619.25 W/m(2)) and 24.05 W/m(2) (ranging from 0.15 to 69.77 W/m(2)), respectively. For different scenarios, the albedo and radiative forcing effect of black carbon is considerably greater than that of dust. The estimated radiative forcing at Keqikaer Glacier is higher than most similar values estimated by previous studies on the Tibetan Plateau, perhaps as a result of black carbon enrichment by melt scavenging. Light-absorbing impurities deposited on Keqikaer Glacier appear to mainly originate from central Asia, Siberia, western China (including the Taklimakan Desert) and parts of South Asia in summer, and from the Middle East and Central Asia in winter. A footprint analysis indicates that a large fraction (>60%) of the black carbon contributions on Keqikaer Glacier comes from anthropogenic sources. These results provide a scientific basis for regional mitigation efforts to reduce black carbon.
英文关键词	light-absorbing impurities black carbon mineral dust glacier snow albedo Tien Shan
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000412780900001
WOS关键词	BLACK-CARBON ; KOXKAR GLACIER ; BROWN CARBON ; SNOW ALBEDO ; CLIMATE ; ICE ; PARTICLES ; ABSORPTION ; INVENTORY ; MODEL
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	兰州大学 ; 中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332314
作者单位	[Zhang, YuLan; Kang, ShiChang; Xu, Min; Li, XiaoFei; Liu, YaJun; Han, HaiDong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 73000, Gansu, Peoples R China; [Kang, ShiChang; Cong, ZhiYuan; Li, ChaoLiu] CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; [Sprenger, Michael] Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, CH-8092 Zurich, Switzerland; [Gao, TanGuang] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Gansu, Peoples R China; [Cong, ZhiYuan; Li, ChaoLiu; Guo, JunMing; Li, Yang] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China; [Xu, ZhiQiang] Meteorol Bur Jimunai Cty, Jimunai 836800, Xinjiang, Peoples R China; [Li, Gang] Lanzhou Meteorol Bur, Arid Meteorol Res Inst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YuLan,Kang, ShiChang,Xu, Min,et al. Light-absorbing impurities on Keqikaer Glacier in western Tien Shan: concentrations and potential impact on albedo reduction[J]. 兰州大学, 中国科学院青藏高原研究所,2017,9(2):97-111.
APA	Zhang, YuLan.,Kang, ShiChang.,Xu, Min.,Sprenger, Michael.,Gao, TanGuang.,...&Han, HaiDong.(2017).Light-absorbing impurities on Keqikaer Glacier in western Tien Shan: concentrations and potential impact on albedo reduction.SCIENCES IN COLD AND ARID REGIONS,9(2),97-111.
MLA	Zhang, YuLan,et al."Light-absorbing impurities on Keqikaer Glacier in western Tien Shan: concentrations and potential impact on albedo reduction".SCIENCES IN COLD AND ARID REGIONS 9.2(2017):97-111.