【摘要】 目的研究安康市1960-2018年气温变化特征及其与太阳黑子活动的关系,为认识该区气候变化规律提供参考依据。方法采用一元线性回归分析、Mann-Kendall非参数检验、Morlet小波分析及交叉小波变换等方法进行分析讨论。结果安康市近60a来年平均气温整体呈上升趋势,增温幅度大约为0.13℃/(10a),并具有显著的28a,39a和66a变化周期,其中,66a周期是太阳活动22a变化周期的3倍,该周期长度接近于太阳黑子活动的50.7a周期。1974-2012年该市的气温变化滞后于太阳黑子活动约1/4个周期。结论安康市近60a来年平均气温的变化周期可能与太阳活动存在着某种关联。更多还原

【Abstract】 Purposes—To explore the characteristics of temperature change in Ankang City,Shaanxi,China,and the relationships between sunspot activity and the characteristics of temperature change in the region from 1960 to 2018.Methods—The methods of unitary linear regression analysis,Mann-Kendall non-parametric test,Morlet wavelet analysis,and cross wavelet transform were used to analyse and discuss.Result—In the past 60 years,the annual temperature in Ankang City showed a general increasing trend with an increase of 0.13℃/(10 a).There existed obviously periodic changes of 28 a,39 aand 66 a,and 66 aperiod is 3 times of 22 asolar activity cycle,and the cycle length was close to the 50.7 asunspot activity cycle.The annual temperature of Ankang City from 1974 to 2012 lags behind the sunspot activity about a quarter of a cycle.Conclusion—The variation cycle of annual average temperature in Ankang City in recent 60 years may be related to solar activity.更多还原