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冰川冻土 ›› 2004, Vol. 26 ›› Issue (3): 267-274.doi: 10.7522/j.issn.1000-0240.2004.0045

• 冰冻圈与全球变化 • 上一篇    下一篇

南极半岛近百年气温的年代际振荡

卞林根1, 王金星1, 林学椿2, 陆龙骅1   

  1. 1. 中国气象科学研究院, 北京, 100081;
    2. 中国气象局, 国家气候中心, 北京, 100081
  • 收稿日期:2003-10-29 修回日期:2004-01-12 出版日期:2004-06-25 发布日期:2012-04-26
  • 基金资助:
    科技部公益性研究项目资助

Interdecadal Oscillation of Temperature in the Antarctic Peninsula in the Last 100 Years

BIAN Lin-gen1, WANG Jin-xing1, LIN Xue-chun2, LU Long-hua1   

  1. 1. Chinese Academy of Meteorological Sciences, Beijing 100081, China;
    2. National Climate Center, CMA, Beijing 100081, China
  • Received:2003-10-29 Revised:2004-01-12 Online:2004-06-25 Published:2012-04-26

摘要: 利用南极半岛及邻近地区(30°~70°W,50°S以南)气象观测资料较好的12个站,建立了该地区近百年的气温距平序列.结果表明:1)近百年南极半岛气温有3个跃变点,分别在1919-1923年1947-1953年和1976-1982年之间,两个跃变点之间的稳定气候阶段的平均长度约30a左右;2)各阶段平均气温成阶梯式的上升,近百年年气温增加了0.730℃,但增温幅度各季不同:冬季最大,夏季最小;3)南极半岛年冰密集度指数倾向率为-0.2053·(10a)-1,而且夏半年(12~翌年5月)比冬半年(6~11月)大;4)南极半岛温度与它的冰密集度指数呈反相关,夏季、秋季和年的相关系数都超过了5%信度.

关键词: 南极半岛, 温度, 海冰, 振荡

Abstract: In this paper, by use of the monthly mean temperature data of 12 stations in the vicinity of Antarctic Peninsula, the temperature series during 1903-2000 is founded and the interdecadal oscillation of the temperature are discussed. The results indicate that there were three jumps in 1919-1923, 1947-1953 and 1976-1982 in the recent hundred years and the stable climate step between two jump points lasted for about 30 years. Annual mean temperature increased by 0.730℃ in an echelon during 1903-2000, the seasonal warming extent was dissimilarity, the maximum of warming was in the winter and the minimum of warming was in the summer. The decline trend of the index of ice concentration in the vicinity seas of Antarctic Peninsula was (-0.2053)\5(10a)-1, which in the summer half year (Dec-May) was much more obvious than that in the winter half year (Jun-Nov). There is a better negative relationship between the temperature and the ice concentration index in Antarctic Peninsula and its vicinity seas, with a correlation coefficient exceeding the significance level of 5% in summer, autumn and all the year round.

Key words: Antarctic Peninsula, temperature, sea ice, oscillation

中图分类号: 

  • P423.3+3(166.1)