ADVANCES IN POLAR SCIENCE ›› 2005, Vol. 17 ›› Issue (1): 32-44.

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SHORT-TERM CLIMATE CHARACTERISTICS AT THE NY-■LESUND OVER THE ARCTIC TUNDRA AREA

  

  • Online:2005-03-30 Published:2005-03-30

Abstract:

Based on Germany Koldwey Station′s 1994—2003 conventional observation hourly data, this paper conducts a statistical analysis on the short-term climate characteristics for an Arctic tundra region (Ny-lesund island) where our first arctic expedition station (Huanghe Station) was located. Affected by the North Atlantic warming current, this area has a humid temperate climate, and the air temperature at the Ny-lesund raised above 0℃ even during deep winter season during our research period. The wind speed in this area was low and appeared most at southeast direction. We find that the temperature at Ny-lesund raised in the faster speed (0 68℃/10 a) than at the whole Arctic area. Compared with the expedition results obtained at the floating ices in the Arctic, Ny-lesund was warmer and more humid and had lower wind speed. Comparison of the near surface air temperature derived by NCEP/NCAR reanalysis to the conventional measurements conducted at the Koldwey site in Ny-lesund area shows a good agreement with winter season and a significant difference for summer season.