摘要
本文用改进的Pasquill-Turner法统计了重庆六年大气稳定度频率,分析了稳定度频率的年际变化、月变化和日变化特点,得出重庆地区大气稳定度频率以中性最高,稳定型次之,不稳定频率最低的结论。统计分析了各类稳定度逐年变化并对这些变化特征从地理、气候和天气上予以解释,最后讨论了太阳赤纬的取值问题。
In this paper, the statistics on frequency of atmospheric stability during a 6—year period in Chongqing was made by using the improved P—T method. The features of the year—to—year changes, the month—to—month changes and the diurnal changes in frequency of atmospheric stabilities were analysed. The results showthat in Chongqing the neutral frequency is highest. The unstable frequency is lowest and the stable one is in the middle. The year—to—year changes of various stability classes are analysed statistically These features of the changes were explained according to geography, climate and weather. Finally two methods of adopting the value of declination of the sun are discussed.
出处
《重庆环境科学》
1991年第6期31-34,51,共5页
Chongqing Environmental Science
关键词
P-T法
大气稳定度频率
P-T method
Frequency of atmospheric stability
