Journal of East China Normal University(Natural Sc ›› 2010, Vol. 2010 ›› Issue (4): 7-15.

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Climate changes and their influence on the massbalances of GlacierNo.1 in the headwater of Urumqi River, Tianshan, China

SHEN Qi1, XU Jian-hua2, WANG Zhan-yong2, WANG Fei-teng3   

  1. 1. School of Business, East China University of Science and Technology, Shanghai 200237, China; 2. Key Lab of GIS, Ministry of Education, East China Normal University, Shanghai 200062, China; 3. State Key Laboratory of Cryosphere Science / Tianshan Glaciological Station, CAREERI, CAS, Lanzhou 730000, China
  • Received:2009-04-01 Revised:2009-08-03 Online:2010-07-25 Published:2010-07-25
  • Contact: SHEN Qi

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Abstract: Based on the daily data of temperature, rainfall, flow and relative humidity, this paper attempted to show the characters of climate change at Urumqi Glacier No. 1 in recent 10 years by wavelet analysis. Furthermore, grey entropy relational analysis was used to study the correlation between the glacier mass balances and various meteorological elements. The results indicated that: (1)at the scale of 4 d, 16 d, 32 d and 64 d, the changes of meteorological factors in the study area have three major characteristics represented by stages, periodicity, and weak trend; (2)at a wider time scale, there is a non-symmetry change between the maximum and the minimum of temperatures; (3)during the period of 1996-2004, the glacier mass balance is mainly affected by the temperature factors; (4) the precipitation from September to May(the balance year) is the main source of Glacier accumulation.

Key words: grey entropy relational analysis, time series, Urumqi Glacier No. 1, wavelet analysis, grey entropy relational analysis, time series, Urumqi Glacier No. 1

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