J4 ›› 2009, Vol. 27 ›› Issue (2): 118-122.

• 论文 • 上一篇    下一篇

石家庄近冬季气温变化特征

高 祺缪启龙赵彦厂   

  1. (1.南京信息工程大学大气科学学院,江苏 南京 210044; 2.河北省石家庄市气象局,河北 石家庄 050081)
  • 收稿日期:2009-05-31 修回日期:2009-06-08 出版日期:2009-06-30 发布日期:2009-06-30
  • 作者简介:高祺(1976-),女,在读硕士,工程师,主要从事应用气象服务研究.E-mai:l gq7618@ sina. com

Temperature Characteristics inW inter of Shijiazhuang in Recent 53 Years

 GAO  Qi1, JIU Qi-Long1, DIAO Pan-An2   

  1. (1. Collegel ofAtmospheric Sciences,Nanjing University ofInformation Science& Technology, Nanjing210044, China;
    2.ShijiazhuangMetereologicalBureau ofHebeiProvince, Shijiazhuang050081, China)
  • Received:2009-05-31 Revised:2009-06-08 Online:2009-06-30 Published:2009-06-30

摘要:

利用石家庄1955年1月至2008年4月逐日气温观测资料,分析讨论了石家庄冬季平均气温、寒冷日数、冷积温的变化特征以及冬季气温的突变和周期;研究了冬季变暖的背景下,石家庄冬季时间尺度的演变、冬季极端冷(暖)日的变化特征和严重冷(暖)冬的分布。结果表明:石家庄近53 a 冬季气温明显上升,最低气温的上升对冬季增温的贡献较大,寒冷日数与冷积温均呈明显减少趋势;冬季气温在20世纪90年代发生突变,存在15 a和3 a左右的周期;近53 a冬季缩短了近4个候,主要体现在冬季结束时间的提前;冬季极端冷日日数呈显著减少趋势,极端暖日日数年际变化加大;严重冷冬均出现在20世纪80年代之前,而严重暖冬均出现在上世纪末到本世纪初。

关键词: 冬季气温, 冷积温, 周期, 极端冷(暖)日, 严重冷(暖)冬

Abstract:

By using the daily temperature from Jan 1955 toApril2008, thewintermean temperature, cold days, cold accumulated temperature and climate abrupt change aswell as periods ofwinter temperature in Shijiazhuangwere analyzed. The variation of extremely cold(warm) days in winter and the distribution of severe cold (warm) winters of Shijiazhuang under the background of the warming winterwere discussed also. The results show that thewinter temperature especially the lowest temperature increased obviously in the recent53 years, and the cold days and the cold accumulated temperature reduced obviously. W inter temperature changed abruptly in the 1990s. Nearly twenty days shortened inwinter in recent53 yearsmainly for ahead of time ofwinter termination. The extreme cold days decreased evidently and yearly variation of the extreme high temperature days increased inwinter. The severe coldwinter occurred before the 1980s, and the severewarm winter occurred from the later1990s to the early 2000s.

Key words: winter temperature, cold accumulated temperature, period, extreme cold(warm) days, severe cold(warm) winter

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