Theoretical and Applied Climatology

, Volume 119, Issue 3–4, pp 407–418 | Cite as

Urbanization effect on long-term trends of extreme temperature indices at Shijiazhuang station, North China

  • Tao Bian
  • Guoyu Ren
  • Bingxiang Zhang
  • Lei Zhang
  • Yanxia Yue
Original Paper

Abstract

Based on daily temperature data from an urban station and four rural stations of Shijiazhuang area in Hebei Province, North China, we analyzed the trends of extreme temperature indices series of the urban station (Shijiazhuang station) and rural stations during 1962–2011 and the urbanization effect on the extreme temperature indices of the urban station. The results showed that the trends of annual extreme temperature indices of the urban station and the rural stations are significantly different in the recent 50 years. Urbanization effect on the long-term trends of hot days, cold days, frost days, diurnal temperature range (DTR), extreme maximum temperature, and extreme minimum temperature at the urban station were all statistically significant, reaching 1.10 days/10 years, −2.30 days/10 years, −2.55 days/10 years, −0.20 °C/10 years, 0.16 °C/10 years, and 0.70 °C/10 years, respectively, with the urbanization contributions to the overall trends reaching 100, 38.0, 42.2, 40.0, 94.1, and 47.0 %, respectively. The urbanization effect on trend of ice days was also significant, reaching −0.47 days/10 years. However, no significant urbanization effect on trends of minimum values of maximum temperature and maximum values of minimum temperature had been detected. The urbanization effects in the DTR and extreme minimum temperature series of Shijiazhuang station in wintertime were highly significant.

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Copyright information

© Springer-Verlag Wien 2014

Authors and Affiliations

  • Tao Bian
    • 1
    • 2
  • Guoyu Ren
    • 2
  • Bingxiang Zhang
    • 1
  • Lei Zhang
    • 2
  • Yanxia Yue
    • 1
  1. 1.Shijiazhuang Meteorological BureauShijiazhuangChina
  2. 2.Laboratory for Climate Studies, National Climate CenterChina Meteorological Administration (CMA)BeijingChina

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