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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/124/02/0353-0363

    • Keywords

       

      Area change; thickness change; SRTM DEM; topographic maps; Landsat ETM+; Tomur Peak; glacier.

    • Abstract

       

      This paper looks at glacier area change in the Tomur Peak for the 1964/71–2000 and 2000–2011 periods. The results show that the total area of the selected 78 glaciers has decreased from 555.45 km2 in 1964/71 to 530.39 km2 in 2000, and further reduced to 521.89 km2 in 2011. Overall, the selected glaciers have lost 4.50% of their surface area between 1964/71 and 2000, and have lost 1.60% more between 2000 and 2011. The area reduction rate of the 78 glaciers increased from 0.12%/a during 1964/71–2000 to 0.13%/a during 2000–2011. In addition, this paper describes a method for estimating the ice surface elevation change using the SRTM (2000) and elevation data generated from topographic maps (1964/71) to quantify the ice thickness change for the 1964/71–2000 period. The surface elevation for about 73.50% of grid area decreased, mostly in the glacier ablation zone. The overall average thickness loss is 22.35 m which yields an annual loss of 0.60 m/a.

    • Author Affiliations

       

      Huai Baojuan1 2 Li Zhongqin1 3 Sun Meiping3 Wang Wenbin1 Jin Shang1 Li Kaiming4

      1. State Key Laboratory of Cryosphere Science, Cold and Arid Region Environment and Engineering Research Institute, Chinese Academy of Sciences (CAS), Lanzhou 730000, China.
      2. University of Chinese Academy of Sciences, Beijing 100049, China.
      3. Geography and Environment College of Northwest Normal University, Lanzhou 730070, China.
      4. School of Urban Economics and Tourism Culture, Lanzhou City University, Lanzhou 730070, China.
    • Dates

       
  • Journal of Earth System Science | News

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