Discharge-sediment processes of the Zhadang glacier on the Tibetan Plateau measured with a high frequency data acquisition system

doi:10.1002/hyp.10900

	Discharge-sediment processes of the Zhadang glacier on the Tibetan Plateau measured with a high frequency data acquisition system
	Chen, Fei 1,2; Cai, Qiangguo 2; Sun, Liying 2; Lei, Tingwu 1
刊名	HYDROLOGICAL PROCESSES
	2016-11-15
卷号	30 期号:23 页码:4330-4338
关键词	glacier meltwater suspended sediment discharge high frequency meteorological factors
ISSN号	0885-6087
DOI	10.1002/hyp.10900
通讯作者	Sun, Liying(sunliying@igsnrr.ac.cn) ; Lei, Tingwu(leitingwu@cau.edu.cn)
英文摘要	In high elevation cold regions of the Tibetan Plateau, suspended sediment transfer from glacier meltwater erosion is one of the important hydrological components. The Zhadang glacier is a typical valley-type glacier in the Nyainqentanglha Mountains on the Tibetan Plateau. To make frequent and long period records of meltwater runoff and sediment processes in the very high elevation and isolated regions, an automatic system was installed near the glacier snout (5400m a.s.l) in August 2013, to measure the transient discharge and sediment processes at 5-min interval, which is shorter than the time span for the water flow to traverse the catchment from the farthest end to the watershed outlet. Diurnal variations of discharge, and suspended sediment concentration (SSC) were recorded at high frequency for the Zhadang glacier, before suspended sediment load (SSL) was computed. Hourly SSC varied from the range of 0.2kg/m(3) to 0.5kg/m(3) (at 8:00-9:00) to the range of 2.0kg/m(3) to 4.0kg/m(3) (at 17:00-18:00). The daily SSL was 32.24t during the intense ablation period. Hourly SSC was linearly correlated with discharge (r=0.885**, n=18, p<0.01). A digit-eight hysteresis loop was observed for the sediment transport in the glacier area. Air temperature fluctuations influence discharge, and then result in the sediment variations. The results of this study provide insight into the responses of suspended sediment delivery processes with a high frequency data in the high elevation cold regions. Copyright (c) 2016 John Wiley & Sons, Ltd.
资助项目	National Natural Science Foundation of China[41230746] ; National Natural Science Foundation of China[51321001] ; National Natural Science Foundation of China[41471229] ; National Natural Science Foundation of China[41271304]
WOS关键词	SUSPENDED-SEDIMENT ; GANGOTRI GLACIER ; GARHWAL HIMALAYA ; PROGLACIAL STREAM ; DOKRIANI GLACIER ; WATER DISCHARGE ; MELTWATER ; INDIA ; TRANSPORT ; EROSION
WOS研究方向	Water Resources
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000388302900007
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/65543]
专题	中国科学院地理科学与资源研究所
通讯作者	Sun, Liying; Lei, Tingwu
作者单位	1.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Chen, Fei,Cai, Qiangguo,Sun, Liying,et al. Discharge-sediment processes of the Zhadang glacier on the Tibetan Plateau measured with a high frequency data acquisition system[J]. HYDROLOGICAL PROCESSES,2016,30(23):4330-4338.
APA	Chen, Fei,Cai, Qiangguo,Sun, Liying,&Lei, Tingwu.(2016).Discharge-sediment processes of the Zhadang glacier on the Tibetan Plateau measured with a high frequency data acquisition system.HYDROLOGICAL PROCESSES,30(23),4330-4338.
MLA	Chen, Fei,et al."Discharge-sediment processes of the Zhadang glacier on the Tibetan Plateau measured with a high frequency data acquisition system".HYDROLOGICAL PROCESSES 30.23(2016):4330-4338.