Journal of Arid Meteorology

Previous Articles     Next Articles

Climatic Change Characteristics in Wushaoling Region of Gansu Province During 1951-2016

TENG Shuichang1, ZHANG Min 1, TENG Jie2, QIAO Qin1   

  1. (1. Wushaoling Meteorology Station of Gansu Province, Tianzhu 733200, Gansu, China;
    2. Wuwei Meteorological Observatory of Gansu Province, Wuwei 733000, Gansu, China)
  • Online:2018-03-05 Published:2018-03-05



  1. (1.甘肃省乌鞘岭气象站,甘肃天祝733200;2.甘肃省武威市气象台,甘肃武威733000)
  • 作者简介:滕水昌(1966—),男,甘肃武威人,工程师,主要从事天气预报服务.。


Based on the meteorological observation data from Wushaoling weather station of Gansu Province during 1951-2016, and the wavelet analysis method and other statistical methods were used to study the characteristics of regional climate change in Wushaoling under the background of global warming. The results show that air temperature in Wushaoling region presented rising trend with a rate of 0.20 ℃·(10 a)-1. The increasing range was maximum during 1997-2016, and in this period the average annual air temperature anomaly was 0.6 ℃, which was up to 0.8 ℃ in recent five years. The air temperature occurred an abrupt change in 1997. The linear trend of annual precipitation did not change obviously, and there were quasi-5 a, 13 a, 17 a, 43 a periodic changes. In the 1950s and the 1980s, the climate was humid, and in the 1960s and the 1970s, it was dry. In recent years, precipitation dispersion increased, and the frequency of heavy rainfall also increased, frost-free period extended, rain and snow days decreased, which all showed obvious climate warming. The db5 wavelet decomposition and R/S analysis showed that air temperature would continue to rise in the future, and precipitation would continue the current increase trend.

Key words: climate change, temperature, precipitation, statistical analysis


基于甘肃乌鞘岭站1951—2016年的气象观测资料,用小波变换等方法分析乌鞘岭地区在全球气候变暖背景下的气候变化特征。结果表明:该地区气温呈上升趋势,增温率为0.20 ℃·(10 a)-1,其中1997—2016年偏暖幅度最大,年均距平达0.6 ℃,近5 a达0.8 ℃,1997年气温发生增暖突变;年降水量线性趋势不明显,存在准5 a、13 a、17 a、43 a的周期变化,1950年代、1980年代气候湿润,1960—1970年代气候干燥;近期(2011—2016年)年降水离散度增加,强降水频次增多,无霜期延长,雨雪日减少,气候变暖特征明显;Db5小波函数和赫斯特指数判别序列变化趋势表明该地区未来气温将持续上升,降水仍将延续增加态势。

关键词: 关键词:气候变化, 气温, 降水, 统计分析

CLC Number: