邢台市降水量时空变化特征研究

Characteristics of Temporal and Spatial Variations of Precipitation in Xingtai

为了研究气候变暖背景下邢台的气候变化特征,以区域逐年降水资料为基础,采用一元线性回归模型、小波分析和Anusplin插值法,定量研究区域降水量时空变化特征。结果表明,近38年来邢台地区降水量呈现一定程度增加趋势;区域降水量变化以20a、7a的中短周期为主,域内降水量年际变化具有相似震荡性;受东亚季风环流与地形因素综合影响,邢台市降水量表现出自中南部向东南、西部地带性增加的格局。

In order to study the characteristics of climate change in Xingtai under the background of climate warming,a monadic linear regression model,wavelet analysis and Anusplin interpolation method were adopted based on the regional annual precipitation data,the spatial and temporal characteristics of regional precipitation were studied quantitatively.The results show that the precipitation over Xingtai has increased in recent 38 years,and the regional precipitation changes are mainly in short and medium periods of 20 and 7 years under the combined influence of the East Asian monsoon circulation and topographic factors,the precipitation in Xingtai shows a zonal pattern of increasing from south-central to south-east and west.