阿城近50a气候变化特征分析

Analysis of climate change in the past 50 years in Acheng

本文根据黑龙江省阿城市1961-2013年间的逐月气温和降水量资料,对阿城市近53 a的气候变化特征进行分析。结果表明:近53 a来阿城市年平均气温呈上升趋势,年平均气温以0.28℃/10 a的幅度上升,其中以冬季增温最为明显,春、秋季增温次之,而夏季的变化趋势则不明显。降水量的年变化略呈现下降趋势,年降水量大小存在波动变化,有一个2-3 a的变化周期,近10 a平均降水量比近50 a平均降水量减少了19 mm。

Analyze the climate change of Acheng in the past 53 years with the temperature ancl precipitation aata from 1961 to 2013. It shows that, the average temperature increase with the speed of 0.28 ℃/10 a, and the warming is most obvious in winter ,then the spring and autumn, but not obvious in summer. The annual precipitation change decrease slightly and exist fluctuation. The cycle is 2-3 a, compare to the recent 50 years, the precipitation in the recent 10 years decrease 19 mm.