大气与环境光学学报 ›› 2013, Vol. 8 ›› Issue (2): 101-106.

• 大气光学 • 上一篇    下一篇

合肥地区近60年由冬入春气温突变点的研究

汪平1,2, 吴晓庆1   

  1. (1 中国科学院安徽光学精密机械研究所大气成分与光学重点实验室, 安徽 合肥 230031; 
    2 中国科学院大学,  北京 100039 )
  • 发布日期:2013-03-07
  • 通讯作者: 汪平(1989-),男,安徽和县人,研究生,主要研究方向为常规气象参数和大气湍流的测量与数据处理。 E-mail:pwang@mail.ustc.edu.cn
  • 作者简介:汪平(1989-),男,安徽和县人,研究生,主要研究方向为常规气象参数和大气湍流的测量与数据处理。

Study of the Temperature Break Points from Winter to Spring in Recent 60 Years of Hefei

WANG Ping 1,2 , WU Xiao-qing1   

  1. ( 1 Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China ; 
    2 University of Chinese Academy of Sciences, Beijing 10039, China )
  • Online:2013-03-07

摘要:

利用合肥气象站点1953~2011年的日平均气温资料,应用Mann-Kendal法分析了合肥地区近60年由冬入春(1~4月)的日平均气温变化情况。确定了日平均气温变化趋势,合肥地区日平均气温上升的始点和突变点,并利用 Yamamoto法对突变点做了检验。对气温上升始点和经过验证的突变点的日期进行了频数统计。结果表明,合肥地区由冬入春气温上升始点的波动性较大,对应日期分布比较离散,位于1月30日~2月10日的相对较多。气温突变点的起伏较小,对应日期分布比较集中,位于1月10日~15日的最多,而位于1月10日~20日的天数频率超过了50%。

关键词: 日平均气温, 突变分析, 突变点, Mann-Kendal法, Yamamoto检验

Abstract:

Based on the data of daily mean temperature of Hefei from 1953 to 2011, the change characteristics of daily mean temperature from winter to spring (January to April) of Hefei in recent 60 years have been analyzed by using Mann-Kendal technique. The change trend of the daily mean temperature, the beginning points and the break points of the daily mean temperature raise have been shown. The calculation results are tested by Yamamoto Test. The frequencies of the dates have been analyzed. The results showed that the fluctuations of the beginning points were large, and the distribution of corresponding dates was scatted. The days between 30th January and 10th February were more than other months. The fluctuations of break points were small. The corresponding dates intensively occured between the 10th and 15th January. The frequencies of dates between 10th and 20th January were more than 50%.

Key words: daily mean temperature, break analyses, break point, Mann-Kendal technique, Yamamoto Test

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