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JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY 2005, Vol. 27 Issue (2) :199-204    DOI:
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Mass Balance of the Qiyi Glacier in the Qilian Mountains: A New Observation
PU Jian-chen1,2, YAO Tan-dong2,1, DUAN Ke-qin1,2, SAKAI Akiko3, FUJITA Koji3, MATSUDA Yoshihiro3
1. Key Laboratory of Ice Core and Cold Regions Environment, CAREERI, CAS, Lanzhou Gansu 730000, China;
2. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;
3. Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan
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Abstract A new observation has been made on the Qiyi Glacier in the Qilian Mountains since 2001. The observation shows that mass balance of the glacier was-810 mm in 2001/2002 and-316 mm in 2002/2003, respectively, suggesting that the glacier was thinning dramatically. However, the glacier experienced positive mass balance of about 360 mm per year in the 1970s and 4 mm per year in the 1980s. In last two to three years the glacier has characterized by strong negative mass balance and its snow line has gone up steadily. Now the equilibrium line of the glacier has reached the highest altitude since the glacier has been observed. Both the mass balance and snow line respond sensitively to the global warming. Under the condition of global warming, it is expected that the glacier will experience negative mass balance, thinning, shrinking and snow line rising.
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PU Jian-chen
YAO Tan-dong
DUAN Ke-qin
SAKAI Akiko
FUJITA Koji
MATSUDA Yoshihiro
KeywordsQiyi Glacier   mass balance   ELA change   global warming     
Abstract: A new observation has been made on the Qiyi Glacier in the Qilian Mountains since 2001. The observation shows that mass balance of the glacier was-810 mm in 2001/2002 and-316 mm in 2002/2003, respectively, suggesting that the glacier was thinning dramatically. However, the glacier experienced positive mass balance of about 360 mm per year in the 1970s and 4 mm per year in the 1980s. In last two to three years the glacier has characterized by strong negative mass balance and its snow line has gone up steadily. Now the equilibrium line of the glacier has reached the highest altitude since the glacier has been observed. Both the mass balance and snow line respond sensitively to the global warming. Under the condition of global warming, it is expected that the glacier will experience negative mass balance, thinning, shrinking and snow line rising.
KeywordsQiyi Glacier,   mass balance,   ELA change,   global warming     
Received: 2004-08-22;
Cite this article:   
PU Jian-chen, YAO Tan-dong, DUAN Ke-qin etc .Mass Balance of the Qiyi Glacier in the Qilian Mountains: A New Observation[J]  JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2005,V27(2): 199-204
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http://210.72.80.159/jweb_bcdt/EN/     或     http://210.72.80.159/jweb_bcdt/EN/Y2005/V27/I2/199
 
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