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冰川冻土 ›› 2014, Vol. 36 ›› Issue (2): 278-285.doi: 10.7522/j.issn.1000-0240.2014.0034

• 冰冻圈与全球变化 • 上一篇    下一篇

青藏高原中部双湖羌塘1号冰川厚度特征及冰储量估算

朱大运1, 田立德2,3, 王建力1,4, 崔江鹏2   

  1. 1. 西南大学 地理科学学院, 重庆 400715;
    2. 中国科学院 青藏高原研究所 青藏高原环境变化与地表过程重点实验室, 北京 100085;
    3. 中国科学院 寒区旱区环境与工程研究所 冰冻圈科学国家重点实验室, 甘肃 兰州 730000;
    4. 西南大学 三峡库区生态环境教育部重点实验室, 重庆 400715
  • 收稿日期:2013-09-09 修回日期:2013-12-17 出版日期:2014-04-25 发布日期:2014-05-20
  • 作者简介:朱大运(1984-),男,河南信阳人,2012年在西南林业大学获硕士学位,现为博士研究生,主要从事冰川变化研究. E-mail:Zhudayun163@163.com
  • 基金资助:
    全球变化研究国家重大科学研究计划项目(2010CB951702);国家自然科学基金项目(41025002);中国科学院青藏高原专项(XDB03030000)资助

The Qiangtang Glacier No.1 in the middle of the Tibetan Plateau:Depth sounded by using GPR and volume estimated

ZHU Dayun1, TIAN Lide2,3, WANG Jianli1,4, CUI Jiangpeng2   

  1. 1. School of Geographical Science, Southwest University, Chongqing 400715, China;
    2. Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;
    3. State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    4. Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, Southwest University, Chongqing 400715, China
  • Received:2013-09-09 Revised:2013-12-17 Online:2014-04-25 Published:2014-05-20
  • Contact: 田立德,E-mail:ldt@itpcas.ac.cn E-mail:ldt@itpcas.ac.cn

摘要: 冰川冰贮量的大小与变化对河流与湖泊水的影响是当前关注的热点科学问题之一. 根据青藏高原中部双湖地区羌塘1号冰川2011、2013年探地雷达测量数据和差分GPS定位结果,分析探讨了羌塘1号冰川横、纵剖面厚度特征,并在GIS技术的支持下,绘制了冰川厚度等值线,对冰川储量进行了估算. 结果表明:羌塘1号冰川作用强烈,横剖面呈典型的“U”形发育,底部宽阔平坦. 纵剖面从下往上缓慢抬升,坡度较小,下伏地形平坦,无明显突兀变化,与冰川表面具有很好的一致性. 经计算整条冰川平均厚度51.28 m,最厚处132.15 m,冰体储量0.1236 km3.

关键词: 冰川厚度, 冰储量, 雷达测厚, 羌塘1号冰川

Abstract: Glacier, named solid reservoir, is an important water resource. Glacier change and its impact on rivers and lakes is one of the hot scientific issues of current concern. Based on the GPR sounding on the Qiangtang Glacier No.1 in Shuanghu of the Tibetan Plateau in 2011 and 2013 and the differential GPS positioning results, in this paper, the features and the depths of underlain terrain are analyzed and discussed. A contour map of glacier thickness is drawn and the glacier reserve is estimated under the support of GIS technology. It is found that the effect of the Qiangtang Glacier No.1 is very strong: its cross-section develops a typical "U" shape with a wider bottom; its longitudinal profile changes slowly with a small slope and the underlain terrain shows a good agreement with glacier surface without significant incongruity. The average thickness of the glacier is 51.28 m, with the maximum thickness of 132.15 m and ice storage of 0.1236 km3.

Key words: ice-thickness, ice volume, GPR, Qiangtang Glacier No.1

中图分类号: 

  • P343.6