Journal of Geographical Sciences ›› 2017, Vol. 27 ›› Issue (3): 297-310.doi: 10.1007/s11442-017-1377-5

• Orginal Article • Previous Articles     Next Articles

Construction of the homogenized temperature series during 1910-2014 and its changes in Hunan Province

Jiadong PENG1,2(), Yufang LIAO1, Yuanhua JIANG1, Jianming ZHANG1, Lijie DUAN1   

  1. 1. Hunan Climate Center, Key Laboratory of Preventing-Diminishing Meteorological Disasters in Hunan Province, Changsha 410118, China
    2. Lanshan Meteorological Bureau, Lanshan 425800, Hunan, China
  • Received:2015-12-01 Accepted:2016-05-27 Online:2017-03-30 Published:2017-11-02
  • About author:

    Author: Liu Chunla, PhD, specialized in economic geography and regional development. E-mail: liuchunla111@163.com

    *Corresponding author: Chen Mingxing, PhD and Associate Professor, E-mail: chenmx@igsnrr.ac.cn

  • Supported by:
    China Meteorological Administration Special Public Welfare Research Fund, GYHY201406016

Abstract:

Based on the statistical method and the historical evolution of meteorological stations, the temperature time series for each station in Hunan Province during 1910-2014 are tested for their homogeneity and then corrected. The missing data caused by war and other reasons at the 8 meteorological stations which had records before 1950 is filled by interpolation using adjacent observations, and complete temperature time series since the establishment of stations are constructed. After that, according to the representative analysis of each station in different time periods, the temperature series of Hunan Province during 1910-2014 are built and their changes are analyzed. The results indicate that the annual mean temperature has a significant warming trend during 1910-2014 and the seasonal mean temperature has the largest rising amplitude in winter and spring, followed by autumn, but no significant change in summer. Temperature variation over Hunan Province has several significant warm-cold alternations and more frequent than that in whole China. Annual and seasonal mean temperatures except summer and autumn have abrupt warming changes in the recent 100 years. The wavelet analysis suggests that the annual and four seasonal mean temperatures in recent 100 years have experienced two climatic shifts from cold to warm.

Key words: Hunan Province, homogeneity, temperature series, change characteristics