IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Seasonal Variation of Drainage System in the Lower Ablation Area of a Monsoonal Temperate Debris-Covered Glacier in Mt. Gongga, South-Eastern Tibet
Liu, Qiao1; Liu, Shiyin2; Cao, Wulong3
Corresponding AuthorLiu, Qiao(liuqiao@imde.ac.cn)
2018
Source PublicationWATER
ISSN2073-4441
Volume10Issue:8Pages:11
SubtypeArticle
AbstractSeasonal evolution of the subglacial drainage system in the lower ablation area of the Hailuogou glacier ice tongue were revealed by repeated dye tracer (Rhodamine WT) experiments during the 2009 ablation season. Between April and October, 18 dye tracer experiments were conducted by injecting the tracer at one location of the lower ablation area of the Hailuogou Glacier to diagnose the seasonal variation of the subglacial drainage system of this section of glacier ice tongue. Using a simple advection-dispersion model (ADM), the flow velocity, hydrodynamic dispersion coefficient, and degree of tracer spreading were deduced. Tracer transit velocity through the tested subglacial channel varied from 0.148 to 0.555 m s(-1) during the 2009 ablation season. Dispersivity showed a relatively high value than that found at other glaciers, which varied between 27.05 and 287.49 m(2) s(-1). Seasonal changes of these indexes indicated that the subglacial drainage system of the lower ablation area of the Hailougou Glacier is a relatively stable existing system in the case of its longitudinal shape, whereas its hydraulic efficiency is low in the early and late ablation seasons and high during the middle of summer due to subglacial channel expansion.
Keywordsubglacial drainage system temperate glacier debris-covered glacier glacial hydrology
DOI10.3390/w10081050
Indexed BySCI
WOS KeywordSUBGLACIAL WATER-PRESSURE ; TRACER EXPERIMENTS ; HAILUOGOU GLACIER ; FLOW CONDITIONS ; OUTBURST FLOOD ; LOWER PART ; SWITZERLAND ; EVOLUTION ; MELT ; HYDROGRAPH
Language英语
Quartile4区
Funding ProjectNational Natural Science Foundation of China[41371094] ; National Natural Science Foundation of China[40801030]
TOP
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000448462700084
Funding OrganizationNational Natural Science Foundation of China
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23485
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorLiu, Qiao
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650500, Yunnan, Peoples R China
3.Adm Bur Hailuogou Ganzi Tibetan Autonomous Prefec, Chengdu 626102, Sichuan, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Liu, Qiao,Liu, Shiyin,Cao, Wulong. Seasonal Variation of Drainage System in the Lower Ablation Area of a Monsoonal Temperate Debris-Covered Glacier in Mt. Gongga, South-Eastern Tibet[J]. WATER,2018,10(8):11.
APA Liu, Qiao,Liu, Shiyin,&Cao, Wulong.(2018).Seasonal Variation of Drainage System in the Lower Ablation Area of a Monsoonal Temperate Debris-Covered Glacier in Mt. Gongga, South-Eastern Tibet.WATER,10(8),11.
MLA Liu, Qiao,et al."Seasonal Variation of Drainage System in the Lower Ablation Area of a Monsoonal Temperate Debris-Covered Glacier in Mt. Gongga, South-Eastern Tibet".WATER 10.8(2018):11.
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