Seasonal evolution of the englacial and subglacial drainage systems of a temperate glacier revealed by hydrological analysis

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Seasonal evolution of the englacial and subglacial drainage systems of a temperate glacier revealed by hydrological analysis
	Liu Qiao(刘巧)
刊名	Sciences in Cold and Arid Regions
	2010-01
卷号	2 期号:1 页码:51-58
关键词	englacial and subglacial drainage systems temperate glacier hydrological processes
通讯作者	Liu Qiao(刘巧)
英文摘要	Englacial and subglacial drainage systems of temperate glaciers have a strong influence on glacier dynamics, glacier-induced floods, glacier-weathering processes, and runoff from glacierized drainage basins. Proglacial discharge is partly controlled by the geometry of the glacial drainage network and by the process of producing meltwater. The glacial-drainage system of some alpine glaciers has been characterized using a model based on proglacial discharge analysis. In this paper, we apply cross-correlation analysis to hourly hydro-climatic data collected from China’s Hailuogou Glacier, a typical temperate glacier in Mt. Gongga, to study the seasonal status changes of the englacial and subglacial drainage systems by discharge-temperature (Q-T) time lag analy-sis. During early ablation season (April–May) of 2003, 2004 and 2005, the change of englacial and subglacial drainage system usually leads several outburst flood events, which are also substantiated by observing the leakage of supraglacial pond and cre-vasses pond water during field works in April, 2008. At the end of ablation season (October–December), the glacial-drainage net-works become less hydro-efficient. Those events are evidenced by hourly hydro-process near the terminus of Hailuogou Glacier, and the analysis of Q-T time lags also can be a good indicator of those changes. However, more detailed observations or experi-ments, e.g. dye-tracing experiment and recording borehole water level variations, are necessary to describe the evolutionary status and processes of englacial and subglacial drainage systems evolution during ablation season.
学科主题	自然地理学
语种	英语
公开日期	2012-12-10
内容类型	期刊论文
源URL	[http://192.168.143.20:8080/handle/131551/4372]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
推荐引用方式 GB/T 7714	Liu Qiao. Seasonal evolution of the englacial and subglacial drainage systems of a temperate glacier revealed by hydrological analysis[J]. Sciences in Cold and Arid Regions,2010,2(1):51-58.
APA	Liu Qiao.(2010).Seasonal evolution of the englacial and subglacial drainage systems of a temperate glacier revealed by hydrological analysis.Sciences in Cold and Arid Regions,2(1),51-58.
MLA	Liu Qiao."Seasonal evolution of the englacial and subglacial drainage systems of a temperate glacier revealed by hydrological analysis".Sciences in Cold and Arid Regions 2.1(2010):51-58.