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Volume 21 Issue 2
Apr 2010
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Journal of Earth Science  > 2010  >  21(2): 148-156.
Xianzhong He, Jiankuo Du, Yapeng Ji, Ningning Zhang, Zongxing Li, Shijin Wang, Wilfred H Theakstone. Characteristics of DDF at Baishui Glacier No. 1 Region in Yulong Snow Mountain. Journal of Earth Science, 2010, 21(2): 148-156. doi: 10.1007/s12583-010-0013-4
Citation: Xianzhong He, Jiankuo Du, Yapeng Ji, Ningning Zhang, Zongxing Li, Shijin Wang, Wilfred H Theakstone. Characteristics of DDF at Baishui Glacier No. 1 Region in Yulong Snow Mountain. Journal of Earth Science, 2010, 21(2): 148-156. doi: 10.1007/s12583-010-0013-4
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Characteristics of DDF at Baishui Glacier No. 1 Region in Yulong Snow Mountain

doi: 10.1007/s12583-010-0013-4
  • 1.

    State Key Laboratory of Cryospheric Sciences, Yulong Snow Mountain Glacial and Environmental Observation Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

  • 2.

    Graduate University of Chinese Academy of Sciences, Beijing 100049, China

  • 3.

    Institute of Environment and Climate Change Research in Western China, Lanzhou University, Lanzhou 730000, China

  • 4.

    School of Environment and Development, University of Manchester, Manchester M13 9PL, UK

Funds:

the National Basic Research Program of China 2007CB411201

the National Natural Science Foundation of China 40971019

the National Natural Science Foundation of China J0630966

the Special Grant for Postgraduate Research, Innovation and Practice 

the West Light Foundation of Chinese Academy of Sciences O828A11001

the Fund from the State Key Laboratory of Cryospheric Sciences 

the Fund from Lijiang City Government 

More Information
  • Corresponding author: Du Jiankuo, djklzu2008@163.com
  • Received Date: 10 Oct 2009
  • Accepted Date: 05 Jan 2010
  • Publish Date: 01 Apr 2010
    Abstract
  • Based on observed mass balance and meteorological data since September 2008 and ablation data by the expedition team of Tibetan plateau from June to August 1982 at Baishui (白水) Glacier No. 1 region, we analyzed the spatial and temporal changes of degree-day factor (DDF) of the Baishui Glacier No. 1 following the changes of space, time, and temperature, which lays a theoretical foundation to establish DDF model. The results indicate that the melting DDF of ice showed a significant downward trend with rising temperatures, and larger value of DDF only appeared at low temperature conditions. A larger value of DDF appeared in the high altitude areas, and as altitude rises, the value of DDF increased. The snow DDF is lower than the DDF of ice, and the DDF is higher in temperate glaciers than those in other glaciers. The melting DDF of snow has a more obvious seasonal variation than the melting DDF of ice.

     

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