Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (26): 229-234.doi: 10.11924/j.issn.1000-6850.casb15040038

Special Issue: 农业气象

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Characteristics Analysis of Temperature Changes in Pulandian City During 1961 to 2010

Gao Yan1, Tao Zhengda1, Zhao Xiaoyu1, Gai Xiaobo2, Cai Dongmei2, Zhuang Yongfu1   

  1. (1Meteorology Bureau of Pulandian City, Pulandian Liaoning 116200;2Dalian Meteorological Bureau, Dalian Liaoning 116001)
  • Received:2015-04-06 Revised:2015-06-12 Accepted:2015-06-25 Online:2015-09-23 Published:2015-09-23

Abstract: Based on the monthly mean temperature in Pulandian City from 1961 to 2010, the authors used linear trend estimations and wavelet analysis to explore the characteristics of temperature changes in Pulandian. The results showed that an increasing tendency existed in the explored time domain. Respectively, the tendency coefficients were 0.24℃/10 a, 0.22℃/10 a, 0.13℃/10 a, 0.24℃/10 a and 0.41℃/10 a for year and the four seasons. The annual mean temperature had a oscillation period of 2-6 a and spring and autumn had a oscillation period of 5-8 a. Both summer and winter temperature displayed a prominent period of 3-4 a, and the oscillation period of summer and winter was 2-4 a and 3-7 a, respectively.