CAJ | 학술논문

根据张家口市1960—2011年逐日气温资料,运用线性倾向估计等方法计算分析了≥0℃积温的时间变化特征。结果表明：52年来年平均气温呈增加趋势,线性增温率为0.42℃/10年,1983年后气温显著增加。≥0℃积温呈增加趋势,增温率为89.4℃/10年。≥0℃初始日期呈显著提前趋势;终止日期呈延迟趋势,且持续天数增加明显。≥0℃终日延迟程度大于起始日期提前程度。
근거장가구시1960—2011년축일기온자료,운용선성경향고계등방법계산분석료≥0℃적온적시간변화특정。결과표명：52년래년평균기온정증가추세,선성증온솔위0.42℃/10년,1983년후기온현저증가。≥0℃적온정증가추세,증온솔위89.4℃/10년。≥0℃초시일기정현저제전추세;종지일기정연지추세,차지속천수증가명현。≥0℃종일연지정도대우기시일기제전정도。
Based on the daily temperature of Zhangjiakou City from 1960 to 2011 ,the characteristics of accumulated temperature change of ~〉0 ~C was analyzed by using the methods of linear trend estimates. The results indicated that ：The annual temperature showed an increasing trend with the linear warming rate of 0.42 ℃/10 a during the past 52 years. After 1983 ,the warning trend increased significantly. ≥0 ℃ accumulated temperature showed an increasing trend with the warming rate of 89.4 ℃/10 a. The trend of initial date of ≥0 ℃ appeared ahead ,while the terminal date was delayed ,so the sustained days of the boundary temperature increased significantly. In the past 52 years ,the delay of the terminal date of the boundary temperature was greater than the ahead of the initial date.