Chinese Journal of Polar Research

ADVANCES IN POLAR SCIENCE ›› 2000, Vol. 11 ›› Issue (2-English): 107-112.

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The study on the depositional styles of major ions and the climatic effect of nssSO42- in Princess Elizabeth Land, Antarctica

Zhang Mingjun1, Li Zhongqin1, Qin Dahe1, Xiao Cunde1, Kang Jiancheng2 and Li Jun3   

  1. 1 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 Polar Research Institute of China, Shanghai 200129, China;
    3 Antarctic CRC and Australian Antarctic Division, Hobart 7001, Australia
  • Online:1950-06-30 Published:1950-06-30
  • Contact: Zhang Mingjun

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Abstract:

Snow samples collected from a 50 m firn core and two snow pits along the route of the 1996/1997 Chinese First Antarctic Inland Traverse Expedition in Princess Elizabeth Land, East Antarctica, have been analyzed for chemical composition and oxygen isotope ratio. Analyzing the relationship between the concentration and flux of major ions and accumulation rate can draw the following conclusions. 1) The concentrations of major ions in the atmosphere in the study region is big enough so that the concentrations of the ions do not vary with snow accumulation rate, that is to say, the concentrations of major chemical species are independent of snow accumulation rate. 2) The results of analyzing the depositional styles of major chemical species suggest that wet deposition dominates the major ions flux. In addition, there is no apparent correlation between nssSO42-   fluctuations and isotope profile. This would indicate the short-term climatic effect of volcanism is not evident in the region.

Key words: ion, dry deposition, wet deposition, volcanic