极地研究

极地研究 ›› 2005, Vol. 16 ›› Issue (2-English): 109-120.

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Short-term Climate Characteristics at Ny-Ålesund over the Arctic Tundra Area

 Deng Haibin, Lu Longhua and Bian Lingen   

  1. Chinese Academy of Meteorological Sciences, 100081 Beijing, China
  • 出版日期:1955-06-30 发布日期:1955-06-30
  • 通讯作者: Deng Haibin

Short-term Climate Characteristics at Ny-lesund over the Arctic Tundra Area

 Deng Haibin, Lu Longhua and Bian Lingen   

  1. Chinese Academy of Meteorological Sciences, 100081 Beijing, China
  • Online:1955-06-30 Published:1955-06-30
  • Contact: Deng Haibin

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摘要：

Based on the 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-Ålesund 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 Ny-Ålesund rose 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-Ålesund rose in the faster rate (0.68℃/10a) than those at the whole Arctic area. Compared with the floating ices where our expedition conducted in the Arctic, Ny-Ålesund 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-Ålesund area shows a good agreement for winter season and a significant difference for summer season.

关键词: Ny-Ålesund, Huanghe Station, Koldwey Station, Climate charecteristics, NCEP/NCAR

Abstract:

Based on the 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-Ålesund 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 Ny-Ålesund rose 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-Ålesund rose in the faster rate (0.68℃/10a) than those at the whole Arctic area. Compared with the floating ices where our expedition conducted in the Arctic, Ny-Ålesund 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-Ålesund area shows a good agreement for winter season and a significant difference for summer season.

Key words: Ny-Ålesund, Huanghe Station, Koldwey Station, Climate charecteristics, NCEP/NCAR