摘要
从热带大气波动的频率方程出发，详细分析了过去给出的低频Ｒｏｓｓｂｙ波的近似频率公式发现其对热带Ｒｏｓｓｂｙ波的性质有一定程度的歪曲。针对这一问题，经分析得到一个能更精确地表征热带Ｒｏｓｓｂｙ波性质的近似频散公式还简要地比较了热带线性Ｒｏｓｓｂｙ波和孤立Ｒｏｓｓｂｙ波两者的频散关系。
Proceeding from frequency equations of waves in the tropical atmosphere, a detailed analysis of approximate frequency formula of low-frequency Rossby wave given by Matsuno is done in this paper. Results show that the approximate formula misrepresents Rossby wave in the tropical atmosphere in some degree. In view of this problem, we restudy the frequency equations and obtain another approximate frequency formula that represents tropical Rossby wave more precisely than the above formula. Then, by using iteration method we further expound and prove this approximate formula. Finally, a comparison of disperisive relations between the liner and the solitary Rossby wave in the tropical atmosphere is done simply.
出处
《热带气象学报》
CSCD
1994年第2期179-184,共6页
Journal of Tropical Meteorology
