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Volume 19 Issue 3
Jun 2008
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Article Contents
Yuan-qing HE, Zong-sheng LI, Xiao-mei YANG, Wen-xiong JIA, Xian-zhong HE, Bo SONG, Ning-ning ZHANG, Qiao LIU. Changes of the Hailuogou Glacier, Mt. Gongga, China, against the Background of Global Warming in the Last Several Decades. Journal of Earth Science, 2008, 19(3): 271-281.
Citation: Yuan-qing HE, Zong-sheng LI, Xiao-mei YANG, Wen-xiong JIA, Xian-zhong HE, Bo SONG, Ning-ning ZHANG, Qiao LIU. Changes of the Hailuogou Glacier, Mt. Gongga, China, against the Background of Global Warming in the Last Several Decades. Journal of Earth Science, 2008, 19(3): 271-281.

Changes of the Hailuogou Glacier, Mt. Gongga, China, against the Background of Global Warming in the Last Several Decades

Funds:

Major Directionality Program of the Chinese Academy of Sciences KZCXZ-YW-317

Key Project of the National Natural Science Foundation of China 90511007

National Basic Research Program of China 2007CB411201

Innovative Research International Partnership Project of the Chinese Academy of Sciences CXTD-Z2005-2

and Project for Outstanding Young Scientists of the National Natural Science Foundation of China 40121101

More Information
  • Corresponding author: Li Zongxing, yxmlzx1982822@163.com
  • Received Date: 30 Nov 2007
  • Accepted Date: 10 Feb 2008
  • Great change, associated with global warming, has occurred at the Hailuogou (海螺沟) glacier, Mt. Gongga (贡嘎), China, since the early 20th century. Various data indicate that the glacier has retreated 1 822 m in the past 106 years, with an annual mean retreat of 17.2 m, and the front elevation has risen by 300 m since 1823. Comparison of glacier variations and temperature fluctuations in China and the Northern Hemisphere, over the last 100 years, indicates that glacier retreat stages occurred during the warm phase, and vice versa. Mass balance records during 1959/60-2003/04 have shown that the glacier has suffered a constant mass loss of snow and ice. The accumulated mass balance, -10.83 m water equivalent, indicates an annual mean value of -0.24 m water equivalent. The correlation between the mass balance and temperature is significant, which also indicates that climatewarming is the crucial cause of glacier loss. Local hydrological and climatic data demonstrate that runoff from the glacier has been increasing both seasonally and annually. The correlation analysis and trend analysis indicate that ice and snow melted water is the main cause of an increase in the runoff. As the climate has become warmer, changes in the glacier surface morphology have obviously occurred. These include a decrease in glacier thickness, enlargement of glacial caves, and reduction of the size of clefts on the glacier surface. The ablation period has lengthened and the ablation area has expanded. A variety offactors thus provide evidence that the Hailuogou glacier has suffered a rapid loss of snow and ice as a result of climatic warming.

     

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