摘要
为深入了解气候变化规律及探讨气候变化原因 ,根据 190 0～ 2 0 0 2年青岛月平均气温资料 ,分析了 10 3年以来青岛的气温变化特征。分析结果表明 :百年来 ,青岛平均气温呈明显上升趋势 ,各季节也是增温趋势 ,冬季增温最大。最高气温和最低气温也都呈明显上升趋势 ,其中最低气温的变化幅度大于最高气温的变化幅度。对比 2次暖锋期的增温特点发现 ,2 0世纪 40年代的增温主要是春秋季节的增温造成的 ,而 2 0世纪 90年代以后的增温期冬季成为主导因素 ,同时都是最低气温贡献大 ,即增温都是在夜间。日较差则呈下降趋势。青岛的气温在 1988年发生了突变。另外 ,青岛气温还有准 2 0年周期振荡的特征。
Based on the monthly mean temperatures in Qingdao from 1900 to 2002, the characteristics of temperature change over the past 103 years are analyzed. The results show clearly that the mean temperature is increasing, so is the mean temperature in each season, especially in winter. The diurnal maximum and minimum temperatures also increase and the increase of the minimum temperature is greater than that of the maximum temperature. Contrasting and comparing the characteristics of the two warming periods, we find that the warming in the 1940's mainly occurred in spring and autumn, but the warming from the 1990's up to present mainly accurres in winter. For both periods, the main contribution to the warming came from the increase of minimum temperatures, i.e., the temperature increase took place at night. The DTR showed a trend towards decreasing. ln addition, it is found that the abrupt change in temperature in Qingdao occurred in 1988. Besides, the Qingdao temperature is characteristic of oscillations with quasi-20 year periods.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第2期189-194,276,共7页
Periodical of Ocean University of China
关键词
青岛
近百年气温
变化趋势
突变
周期
Qingdao
temperature over the resent hundred years
variation trend
abrupt change
period
