气候变化研究进展2009，Vol.5Issue(4)：237-240,4.
1971-2000年营口地区大风特征及其变化分析
Characters of High Wind Days and Its Change in Yingkou Prefecture from 1971 to 2000
金巍 1周广胜 2曲岩3
作者信息
- 1. 南京大学大气科学系,南京,210093
- 2. 辽宁省营口市气象局,营口,115001
- 3. 中国气象科学研究院,北京,100081
- 折叠
摘要
Abstract
The analyses of high wind days in Yingkou Prefecture from 1971 to 2000 indicate that days of wind speed above 6 and 8 categories in one year reduced successively fi'om spring, winter, autumn to summer. Annual days of wind speed above 6 and 8 categories in the recent 30 years (1971-2000) reduced at a linear change rate of 27.4 d/10a and 6.7 d/10a, but in the recent 20 years (1981-2000), the annual high wind days reduced at a linear trend of 13.1 d/10a and 6.1 d/10a, respectively, suggesting that the reducing trends of high wind days in the recent 30 years are more significant than those in the recent 20 years; and the reducing trends in spring and early summer (March to June) are more remarkable than those in autumn and winter. The weakening of local general circulation associated with the reduction in diurnal range might be one of the reasons for the decline in high wind days in Yingkou Prefecture.关键词
大风日数/变率/营口地区Key words
high wind days/change rate/Yingkou Prefecture分类
天文与地球科学引用本文复制引用
金巍,周广胜,曲岩..1971-2000年营口地区大风特征及其变化分析[J].气候变化研究进展,2009,5(4):237-240,4.
