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作者投稿 专家审稿 编辑办公 编委办公 主编办公

冰川冻土 ›› 2016, Vol. 38 ›› Issue (6): 1666-1678.doi: 10.7522/j.issn.1000-0240.2016.0194

• 寒旱区水文与水资源 • 上一篇    下一篇


杨康1, 刘巧2   

  1. 1. 南京大学 地理与海洋科学学院, 江苏 南京 210023;
    2. 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, 四川 成都 610041
  • 收稿日期:2016-06-05 修回日期:2016-10-09 出版日期:2016-12-25 发布日期:2017-04-06
  • 作者简介:杨康(1986-),男,甘肃庆阳人,副研究员,2014年在南京大学获博士学位,从事资源环境遥感方面的研究.E-mail:yangkangnju@gmail.com
  • 基金资助:


Supraglacial drainage system: a review

YANG Kang1, LIU Qiao2   

  1. 1. School of Geographic & Oceanographic Sciences, Nanjing University, Nanjing 210023, China;
    2. Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
  • Received:2016-06-05 Revised:2016-10-09 Online:2016-12-25 Published:2017-04-06



关键词: 冰川水文, 冰面河, 冰面湖, 冰裂隙, 锅穴


Supraglacial drainage system is one of the most important parts of glacial drainage systems, which impacts glacier surface ablation processes through transfer and drainage of surface meltwater. The existence of supraglacial drainage system also significantly impacts glacier flow and dynamics. Most of the conventional glacier hydrologic models suggest that surface meltwater can efficiently drain from glaciers and thus ignore the ability of supraglacial drainage system to retain meltwater. However, the impact of this retention, which leads to large uncertainties in glacier runoff prediction, could not be ignored. Therefore, it is crucial to improve the understanding in supraglacial drainage systems. The formation of supraglacial drainage system is controlled by glacier size, physical characteristics and ablation zone distribution. There is a seasonal development process of supraglacial drainage system from subsurface flow to slush flow and then to open channel flow. This dynamic supraglacial drainage system can route glacial surface meltwater into moulins, ice crevasses or supraglacial lakes through supraglacial networks with variable efficiencies and delays over space and time. In this paper, an attempt is tried to review the current supraglacial drainage system studies, and to discuss the evolution, distribution and constitution of supraglacial drainage system in sequence and their roles in meltwater transfer and drainage. In particular, hydrodynamics of supraglacial networks are discussed in detail to illustrate the pattern, efficiency and meltwater partition of supraglacial drainage system.

Key words: glacier hydrology, supraglacial stream, supraglacial lake, ice crevasse, moulin


  • P343.6