Acta Geographica Sinica ›› 2015, Vol. 70 ›› Issue (9): 1415-1422.doi: 10.11821/dlxb201509005

• Climate Change • Previous Articles     Next Articles

Mass balance of a typical monsoonal temperate glacier in Hengduan Mountains Region

Jiankuo DU1(), Yuanqing HE2, Shuang LI1, Shijin WANG2, Hewen NIU2   

  1. 1. Qinling and Intones Geography Research Institute, Shaanxi University of Technology, Hanzhong 723001, Shaanxi, China
    2. State Key Laboratory of Cryosphere Science, Cold and Arid Region Environment and Engineering Research Institute, CAS, Lanzhou 730000, China
  • Received:2015-06-07 Revised:2015-07-18 Online:2015-09-20 Published:2015-09-20
  • Supported by:
    National Basic Research Program of China (973 Program), No.2013CBA01801;National Natural Science Foundation of China, No.40971019;Fund from The State Key Laboratory of Cryosphere Science, No.SKLCS-ZZ-2012-01-02

Abstract:

Research on Mt. Yulong is of great significance to evaluating the relationships between climate and glacier change in the Hengduan Mountains. Results show that the glacier mass had huge loss during the study period, varying from a minimum value of -1872 mm water equivalent (w.e.) to a maximum value of -907 mm w.e. The equilibrium line altitude of glacier was 4972 m in 2008, but it had been beyond the upper limit of the glacier since 2009. The accumulation occurred from October to the following May, while the ablation from June to September accounted for over 80% of the total amount of Baishui Glacier No.1. The mass balance vertical gradient was limited at the beginning and the end of the ablation period, and it is smaller in the ablation period compared with the whole year. The mean vertical gradient in this region was 1230 mm w.e. (100 m)-1 during 2008/2009, 2011/2012 and 2012/2013.

Key words: Hengduan Mountains, monsoonal temperate glacier, Baishui Glacier No.1, glacier mass balance