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广西崇左市近61年的气温变化特征分析
毛家燊
0
(崇左市气象局)
摘要:
利用崇左国家气象观测站1957-2017年共61年的逐月平均气温资料,分析崇左市年平均气温以及春、夏、秋、冬四季平均气温的变化特征。结果表明:崇左市年平均气温整体呈显著上升趋势,气温倾向率为0.0157℃.a-1,并在1990年发生向暖突变。春季的增温速率最缓慢,秋季的增温速率最快;夏、秋季的季平均气温升温趋势显著,对全年平均气温增温趋势的贡献大。近61年来,崇左市年平均气温以5a以下的振荡周期为主,20世纪70年代至90年代呈现出8a及14a左右的周期变化,且以8a左右的周期变化最为显著。
关键词:  崇左  气温  变化特征
DOI:
投稿时间:2019-01-07修订日期:2019-01-07
基金项目:
Temperature change characteristics of Chongzuo in recent 61 years
()
Abstract:
Base on the monthly average temperature data of the Chongzuo National Meteorological Observatory during 1957-2017,the annual average temperature and the seasonal average temperature in spring,summer,autumn and winter were analyzed.The results show that the annual average temperature in Chongzuo City showed a significant upward trend at a rate of 0.0157℃.a-1, and there was abrupt change of annual average temperature in 1990.The increase rate of seasonal average temperature in spring is the slowest and it is the fastest in autumn.The seasonal average temperature in summer and autumn is warming up significantly, and contributing a lot to the annual average temperature rising.In recent 61 years, the annual average temperature has been dominated by an oscillation period of less than 5 years. From the 1970s to the 1990s, it has period of 8a and 14a, and 8a is the most significant period.
Key words:  Chongzuo  Temperature  Variation characteristics

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