Light-absorbing impurities in snow cover across Northern Xinjiang, China

doi:10.1017/jog.2019.69

IEECAS OpenIR > 粉尘与环境研究室

	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(shichang.kang@lzb.ac.cn)
	2019-12-01
发表期刊	JOURNAL OF GLACIOLOGY
ISSN	0022-1430
卷号	65 期号:254 页码:940-956
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.
关键词	Light-absorbing impurities Northern Xinjiang radiative forcing snow albedo snowmelt
DOI	10.1017/jog.2019.69
关键词[WOS]	BLACK CARBON DEPOSITION ; MINERAL DUST ; SPATIOTEMPORAL VARIABILITY ; ORGANIC-CARBON ; SEASONAL SNOW ; GLACIER MELT ; ICE ; ALBEDO ; ABSORPTION ; PARTICLES
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41701064] ; National Natural Science Foundation of China[41630754] ; National Natural Science Foundation of China[41801048] ; National Natural Science Foundation of China[41971083] ; Chinese Academy of Sciences[XDA20040501] ; Chinese Academy of Sciences[QYZDJ-SSW-DQC039] ; State Key Laboratory of Cryospheric Science[SKLCS-ZZ-2018]
WOS研究方向	Physical Geography ; Geology
项目资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences ; State Key Laboratory of Cryospheric Science
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000510631500006
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/12792
专题	粉尘与环境研究室
通讯作者	Kang, Shichang
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]. JOURNAL OF GLACIOLOGY,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.