Chinese Journal of Polar Research

ADVANCES IN POLAR SCIENCE ›› 2006, Vol. 17 ›› Issue (2-English): 124-129.

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Latitudinal distribution of CO2 and CH4 on the route of the Chinese Arctic R esearch Expedition 2003

 Zhang Dongqi1,2, Xu Jianzhong2, Tang Jie1 and Wen Min1   

  1. 1 Key Laboratory for Atmospheric Chemistry, Centre for Atmosphere Watch and Services, Chinese Academy of Meteorological Sciences, Beijing 100081, China;
    2 Key Laboratory of Cryosphere and Environment, Chinese Academy of Sciences, Lanzhou 730000, China
  • Online:1956-06-30 Published:1956-06-30
  • Contact: Zhang Dongqi

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Abstract:

During the 2nd Chinese Arctic Research Expedition, 20 pair of atmospheric samples were collected on the cruising route from Shanghai to Arctic Ocean using NOAA/ESRL flask sampling unit. Mean concentration of CO2 and CH4 were an alyz ed in different latitude zone from 30°N to 80°N and the distribution character is tics were studied. Mean concentration of CO2 decrease toward high latitude whi ch indicates the uptake effect of CO2 by ocean. Coinciding with the CH4 global dis tribution character,mean CH4 concentration increase from 45°N to the North Pole region. Regional or local air mass may influence the greenhouse gas concentrati ons near seashore in the middle latitude (30°N-45°N).

Key words: the 2nd Chinese Arctic Research Expedition, CO2 and CH4, concentration, latitudinal distribution