地理学报 ›› 2015, Vol. 70 ›› Issue (9): 1415-1422.doi: 10.11821/dlxb201509005

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横断山区典型海洋型冰川物质平衡研究

杜建括1(), 何元庆2, 李双1, 王世金2, 牛贺文2   

  1. 1. 陕西理工学院历史文化与旅游学院 秦岭与蜀道地理研究所,汉中 723000
    2. 中国科学院寒区旱区环境与工程研究所 冰冻圈国家重点实验室,兰州 730000
  • 收稿日期:2015-06-07 修回日期:2015-07-18 出版日期:2015-09-20 发布日期:2015-10-29
  • 作者简介:

    作者简介:杜建括(1984-), 男, 山东聊城人, 讲师, 研究方向为冰川与全球变化。E-mail: djklzu2008@163.com

  • 基金资助:
    国家重大科学研究计划项目(超级973项目) (2013CBA01801);国家自然科学基金项目(40971019);冰冻圈科学国家重点实验室自主项目(SKLCS-ZZ-2012-01-02)

Mass balance of a typical monsoonal temperate glacier in Hengduan Mountains Region

Jiankuo DU1(), Yuanqing HE2, Shuang LI1, Shijin WANG2, Hewen NIU2   

  1. 1. Qinling and Intones Geography Research Institute, Shaanxi University of Technology, Hanzhong 723001, Shaanxi, China
    2. State Key Laboratory of Cryosphere Science, Cold and Arid Region Environment and Engineering Research Institute, CAS, Lanzhou 730000, China
  • Received:2015-06-07 Revised:2015-07-18 Online:2015-09-20 Published:2015-10-29
  • Supported by:
    National Basic Research Program of China (973 Program), No.2013CBA01801;National Natural Science Foundation of China, No.40971019;Fund from The State Key Laboratory of Cryosphere Science, No.SKLCS-ZZ-2012-01-02

摘要:

玉龙雪山发育着对气候变化响应极为敏感的典型海洋型冰川。基于2008-2013年共5个物质平衡年观测数据,对玉龙雪山规模最大的白水1号冰川物质平衡特征进行分析,为评估横断山区气候和冰川变化之间的关系奠定基础。结果表明:2008-2013年白水1号冰川物质平衡最大值仅为-907 mm w.e.,最小值则达到-1872 mm w.e.。2008年冰川平衡线高度为4972 m,2009-2013年白水1号冰川积累区近乎消失。白水1号冰川积累期主要集中于10月至次年5月,6-9月为强消融期,积累量几乎为零,消融量占全年80%,属冬春季积累型冰川。2008-2009、2011-2012和2012-2013年平均物质平衡梯度为1230 mm w.e. (100 m)-1,消融期物质平衡梯度小于年物质平衡梯度,消融期初与消融期末物质平衡梯度小于100 mm w.e.(100 m)-1

关键词: 横断山, 海洋型冰川, 白水1号冰川, 物质平衡

Abstract:

Research on Mt. Yulong is of great significance to evaluating the relationships between climate and glacier change in the Hengduan Mountains. Results show that the glacier mass had huge loss during the study period, varying from a minimum value of -1872 mm water equivalent (w.e.) to a maximum value of -907 mm w.e. The equilibrium line altitude of glacier was 4972 m in 2008, but it had been beyond the upper limit of the glacier since 2009. The accumulation occurred from October to the following May, while the ablation from June to September accounted for over 80% of the total amount of Baishui Glacier No.1. The mass balance vertical gradient was limited at the beginning and the end of the ablation period, and it is smaller in the ablation period compared with the whole year. The mean vertical gradient in this region was 1230 mm w.e. (100 m)-1 during 2008/2009, 2011/2012 and 2012/2013.

Key words: Hengduan Mountains, monsoonal temperate glacier, Baishui Glacier No.1, glacier mass balance