干旱区生态环境知识资源中心(Arid): Light-absorbing impurities in snow cover across Northern Xinjiang, China

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DOI	10.1017/jog.2019.69
	Light-absorbing impurities in snow cover across Northern Xinjiang, China
	Zhong, Xinyue 1; Kang, Shichang 2,3,4; Zhang, Wei 2; Yang, Junhua 2; Li, Xiaofei 5; Zhang, Yulan 2; Liu, Yajun 2; Chen, Pengfei 2
通讯作者	Kang, Shichang
来源期刊	JOURNAL OF GLACIOLOGY
ISSN	0022-1430
EISSN	1727-5652
出版年	2019
卷号	65 期号:254 页码:940-956
英文摘要	Light-absorbing impurities (LAIs, e.g. black carbon (BC), organic carbon (OC), mineral dust (MD)) deposited on snow cover reduce albedo and accelerate its melting. Northern Xinjiang (NX) is an arid and semi-arid inland region, where snowmelt leads to frequent floods that have been a serious threat to local ecological security. There is still a lack of quantitative assessments of the effects of LAIs on snowmelt in the region. This study investigates spatial variations of LAIs in snow and its effect on snow albedo, radiative forcing (RF) and snowmelt across NX. Results showed that concentrations of BC, OC (only water-insoluble OC), MD ranged from 32 to 8841 ng g(-1), 77 to 8568 ng g(-1) and 0.46 to 236 mu g g(-1) respectively. Weather Research and Forecasting Chemistry model suggested that residential emission was the largest source of BC. Snow, Ice, and Aerosol Radiative modelling showed that the average contribution of BC and MD to snow albedo reduction was 17 and 3%, respectively. RF caused by BC significantly exceeded RF caused by MD. In different scenarios, changes in snow cover duration (SCD) caused by BC and MD decreased by 1.36 +/- 0.61 to 6.12 +/- 3.38 d. Compared with MD, BC was the main dominant factor in reducing snow albedo and SCD across NX.
英文关键词	Light-absorbing impurities Northern Xinjiang radiative forcing snow albedo snowmelt
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000510631500006
WOS关键词	BLACK CARBON DEPOSITION ; MINERAL DUST ; SPATIOTEMPORAL VARIABILITY ; ORGANIC-CARBON ; SEASONAL SNOW ; GLACIER MELT ; ICE ; ALBEDO ; ABSORPTION ; PARTICLES
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
EI主题词	2019-12-01
来源机构	中国科学院地球环境研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311264
作者单位	1.Chinese Acad Sci, Key Lab Remote Sensing Gansu Prov, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; 2.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 5.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Xinyue,Kang, Shichang,Zhang, Wei,et al. Light-absorbing impurities in snow cover across Northern Xinjiang, China[J]. 中国科学院地球环境研究所,2019,65(254):940-956.
APA	Zhong, Xinyue.,Kang, Shichang.,Zhang, Wei.,Yang, Junhua.,Li, Xiaofei.,...&Chen, Pengfei.(2019).Light-absorbing impurities in snow cover across Northern Xinjiang, China.JOURNAL OF GLACIOLOGY,65(254),940-956.
MLA	Zhong, Xinyue,et al."Light-absorbing impurities in snow cover across Northern Xinjiang, China".JOURNAL OF GLACIOLOGY 65.254(2019):940-956.