宁津县气候变化规律分析

利用宁津县1971—2007年的气象资料,分析宁津县的气温变化与降水变化规律。结果表明:37年内的年平均气温、年平均最高气温、年平均最低气温自80年代后期以来呈上升趋势,到90年代后期增温幅度加快,尤其以冬、春季最为明显。年平均气温以0.44℃/10 a的速度上升,而年平均最低气温则以0.50/10 a的速度上升,明显高于年平均最高气温的上升趋势;年平均降水量总体上呈下降趋势,主要是夏季降水量减少明显。

Analysis on Climate Change Features of Ningjin County

By the meteorological date during 1971—2007,discipline of temperature and precipitation variations of Ningjin county were analysed.The results showed that the annual average temperatures,the annual average maximum temperatures and the annual average minimum temperatures had an inereasing trend since the late 1980s,an upward trend was accelevated in late 1990 s,it was the most obvious in the winter and spring.Annual average temperatures increased by 0.44 degrees every ten years,but annual average minimum temperatures increased by 0.50 degrees every ten years,its rising trend was higher than the former.As a whole,the annual mean precipitation showed a downtrending,mainly summer precipitation decreased significantly.