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冰川冻土 ›› 2020, Vol. 42 ›› Issue (2): 318-331.doi: 10.7522/j.issn.1000-0240.2019.0053

• 冰冻圈与全球变化 • 上一篇    下一篇

2008 - 2014年青冰滩72号冰川物质平衡特征分析

车彦军1,2(),张明军1(),李忠勤1,3,金爽3,王文彬3,王圣杰1   

  1. 1.西北师范大学 地理与环境科学学院,甘肃 兰州 730070
    2.宜春学院 地理科学系,江西 宜春 336000
    3.中国科学院 西北生态环境资源研究院 冰冻圈科学国家重点实验室/天山冰川观测试验站,甘肃 兰州 730000
  • 收稿日期:2018-06-11 修回日期:2019-03-16 出版日期:2020-08-31 发布日期:2019-03-16
  • 通讯作者: 张明军 E-mail:che_yanjun@126.com;mjzhang2004@163.com
  • 作者简介:车彦军(1988 - ), 男, 甘肃武山人, 2017年在西北师范大学获得博士学位, 从事全球变化与水循环过程、 冰川与气候作用机理研究. E-mail:che_yanjun@126.com
  • 基金资助:
    国家重大科学计划研究项目(2013CBA01801);国家自然科学基金项目(41461003);中国清洁发展机制基金赠款项目(2014105);宜春学院博士科研基金(113-3350100050);科技部科技基础性工作专项(2013FY111400)

Understanding the mass balance characteristics of Qingbingtan Glacier No. 72 during the period of 2008 - 2014

Yanjun CHE1,2(),Mingjun ZHANG1(),Zhongqin LI1,3,Shuang JIN3,Wenbin WANG3,Shengjie WANG1   

  1. 1.College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
    2.Department of Geography, Yichun University, Yichun 336000, Jiangxi, China
    3.Tianshan Glaciological Station, State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2018-06-11 Revised:2019-03-16 Online:2020-08-31 Published:2019-03-16
  • Contact: Mingjun ZHANG E-mail:che_yanjun@126.com;mjzhang2004@163.com

摘要:

物质平衡是冰川与气候相互作用的关键桥梁, 对气候变化非常敏感。基于青冰滩72号冰川2008 - 2014年冰面花杆和雪坑的观测资料, 结合Landsat系列卫星影像, 利用零平衡线法对青冰滩72号冰川的物质平衡进行计算和分析。结果表明: 青冰滩72号冰川2008 - 2014年平均物质平衡梯度为(0.86 ± 0.19) m w.e.?(100m)-1; 平衡线高度在(4 109 ± 23) ~ (4 317 ± 92) m a.s.l.之间变化, 平均为(4 167.5 ± 33.2) m a.s.l。同时, 青冰滩72号冰川年净物质平衡介于-1.23 m w.e. ~ +0.31 m w.e., 年平均为-0.38 m w.e., 累积物质平衡为-2.27 m w.e.。此外, 与位于天山地区图尤克苏冰川、 乌鲁木齐河源1号冰川平衡线高度和累积物质平衡的比较发现, 青冰滩72号冰川平衡线高度和物质平衡的变化与图尤克苏冰川相似, 而与乌鲁木齐河源1号冰川的差异相对较大。

关键词: 物质平衡, 青冰滩72号冰川, 平衡线高度(ELA), 托木尔峰地区, 天山

Abstract:

The glacier is sensitive to climate change, thus is widely used to understand the relationship between glacier and climate. In this paper, the mass balance of Qingbingtan Glacier No.72 was calculated based on the in situ data of stakes and pits from 2008 to 2014, combining with Landsat TM/ETM+/OLI images. Meanwhile, the method of Zero Equilibrium Line was used to calculate mass balance for entire glacier. The results indicated that mean gradient of mass balance with elevation was (0.86 ± 0.19) m w.e.·(100m)-1 during the study period. The mean equilibrium line altitude (ELA) was at (4 167.5 ± 33.2) m a.s.l., which ranged from (4 317 ± 92) m a.s.l. to (4 109 ± 23) m a.s.l. during the period of 2008 - 2014. The mean annual mass balance was -0.38 m w.e, ranging from -1.23 m w.e. to +0.31 m w.e. During the study period, accumulative mass balance was -2.27 m w.e. from 2008 to 2014. In addition, based on the comparison glacier mass balances among Qingbingtan Glacier No.72, Tuyuksuyskiy Glacier and Urumqi Glacier No.1, we found that the changes in ELA and mass balance of Qingbingtan Glacier No.72 were similar to that of Tuyuksuyskiy Glacier, respectively. However, there was significant discrepancy in terms of the changes in ELA and mass balance between Qingbingtan Glacier No.72 and Urumqi Glacier No.1.

Key words: mass balance, Qingbingtan Glacier No.72, equilibrium line altitude (ELA), Tomur Mountains, Tianshan Mountains

中图分类号: 

  • P343.6