安徽农业科学2013，Vol.41Issue(1)：220-221,228,3.
1954～2011年乌拉特中旗日照时数的特征分析
Characteristic Analysis on Sunshine Hours in Urat Middle County from 1954 to 2011
张瑞 1揣新军 1王文新 2林志坚3
作者信息
- 1. 内蒙古乌拉特中旗气象局,内蒙古乌拉特中旗015300
- 2. 内蒙古乌拉特后旗气象局,内蒙古乌拉特后旗015543
- 3. 广东省揭阳市气象局,广东揭阳522031
- 折叠
摘要
Abstract
The variation trends of annual and seasonal sunshine hours in Urat Middle County from 1954 to 2011 were analyzed by climate trend rate method. The result indicated that the yearly and seasonal sunshine hours existed different decreasing trends in Urat Middle County in recent 58 years, the yearly sunshine hours is decreasing at the trend rate of 2.378 h/lOa and the tendency is increasing which displayed mainly in autumn and winter. The yearly sunshine hours are all positive anomaly from the 50s to the 90s in 20 century, its main inter-decadal variation is negative anomaly at the beginning of the 21st century; the autumn sunshine hours in 1980s were less, the autumn sunshine are all abundant in the other different eras. Year sunshine hours are mainly abnormal more, abnormal less year appeared only in the 21st century, diere is no obvious difference in seasonal sunshine hours. From the fifties to now, annual average total cloud cover and low cloud amount in Urat Middle County are all shown as decreasing trend, while 1980s to now, annual average total cloud cover and low cloud amount showed an increasing trend, among them total cloud cover had a big rate of increase amplitude, which had an increase amplitude of 1.6 percent/10a.关键词
乌拉特中旗/日照时数/变化特征Key words
Urat Middle County/ Sunshine hours/ Variation characteristics分类
农业科技引用本文复制引用
张瑞,揣新军,王文新,林志坚..1954～2011年乌拉特中旗日照时数的特征分析[J].安徽农业科学,2013,41(1):220-221,228,3.
