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冰川冻土 ›› 2014, Vol. 36 ›› Issue (1): 38-47.doi: 10.7522/j.issn.1000-0240.2014.0005

• 冰冻圈与全球变化 • 上一篇    下一篇

祁连山老虎沟12号冰川表面能量和物质平衡模拟

陈记祖1,2, 秦翔1,2, 吴锦奎2, 杜文涛2, 孙维君2, 刘宇硕2, 黄哲1, 杨俊华2   

  1. 1. 兰州大学 资源环境学院, 甘肃 兰州 730000;
    2. 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/祁连山冰川与生态环境综合观测研究站, 甘肃 兰州 730000
  • 收稿日期:2013-08-26 修回日期:2013-12-05 出版日期:2014-02-25 发布日期:2014-03-18
  • 通讯作者: 秦翔,E-mail:qinxiang@lzb.ac.cn E-mail:qinxiang@lzb.ac.cn
  • 作者简介:陈记祖(1990-),男,甘肃天水人,2011年毕业于兰州大学,现为硕士研究生,主要从事冰川气象和冰川水文的研究工作. E-mail:chenjz2011@lzu.edu.cn
  • 基金资助:

    国家重大科学研究计划项目(2013CBA01801);国家自然科学基金项目(41201067;41371091;41271085;41271085);冰冻圈科学国家重点实验室自主课题(SKLCS-ZZ-2012-01-05)资助

Simulating the energy and mass balances on the Laohugou Glacier No. 12 in the Qilian Mountains

CHEN Jizu1,2, QIN Xiang1,2, WU Jinkui2, DU Wentao2, SUN Weijun2, LIU Yushuo2, HUANG Zhe1, YANG Junhua2   

  1. 1. College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China;
    2. State Key Laboratory of Cryospheric Sciences / Qilian Shan Station of Glaciology and Ecologic Environment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2013-08-26 Revised:2013-12-05 Online:2014-02-25 Published:2014-03-18

摘要:

采用HOCK的分布式能量物质平衡模型对老虎沟12号冰川消融期的物质平衡进行了模拟,时间步长为1 h,空间分辨率为30 m. 模型结果利用物质平衡观测数据和气象站观测数据验证,模型模拟时期为2012年6月1日-9月30日. 模型模拟结果表明,地形因子对太阳辐射影响相当显著;散射辐射在总辐射中的比例较大为39%,模拟期冰川表面物质平衡为-506 mm w.e.. 在模拟期整个冰川平均上净辐射占能量收入的84%,感热通量占有16%;消融耗热则是能量的主要支出占有62%,潜热通量占有能量支出的38%.

关键词: 老虎沟12号冰川, 分布式能量-物质平衡模型, 地形因子, 散射辐射

Abstract:

By using a 1-h temporal resolution and 30-m spatial resolution grid-based distributive surface mass-energy model, the energy distribution and mass balance on the Laohugou No.12 Glacier were simulated. The period of simulation was from June 1st to September 30 th, 2012. The simulated results were validated by solar and net radiation data from meteorological stations and measured mass-balance data, respectively. The simulated results show that terrain factors have a considerably effect on solar radiation. Diffuse radiation accounts for 38% of global radiation. The mass balance averaged over the simulated period is 893 mm w.e. During the simulative period and over the glacier, the net radiation is the principal energy source (84%), followed by the sensible het flux (16%); whereas the main energy expenditure is the heat flux for snow/ice ablation (62%), followed by the latent heat flux (38%).

Key words: Laohugou Glacier No. 12, distributive mass-energy balance model, terrain factor, diffuse radiation

中图分类号: 

  • P343.6