空间科学学报2000,Vol.20Issue(2):121-128,8.
中高层大气行星波与惯性重力内波的非线性相互作用
NONLINEAR INTERACTION AMONG PLANETARY WAVE AND INERTIALGRAVITY WAVES IN THE MIDDLE AND UPPER ATMOSPHERE
摘要
Abstract
The evolution equation of planetary wave and inertial-gravity waves areobtained from the anelastic equations based on a weakly nonlinearassumption. From the resonance surface and increase rate curve, it isfound that the planetary wave prefers to interact with large scaleinertial-gravity waves. By using the equi-valent gravity wave assumptionof tidal waves, the interaction among the typical 2 days planetary wave,semidiurnal tide and 9.6 hours inertial-gravity waves are investigatedin detail. The exchange of energy between planetary wave and semidiurnaltide is found to proceed more strongly than the exchange between themand the 9.6 hours inertial-gravity gravity. The variability of tidal andplanetary wave amplitudes may be caused by nonlinear interaction betweenthem.关键词
非线性—行星波—潮汐—惯性重力波Key words
Nonlinear interaction/Planetary wave/Tide/Inertial-gravity wave分类
天文与地球科学引用本文复制引用
熊建刚,易帆..中高层大气行星波与惯性重力内波的非线性相互作用[J].空间科学学报,2000,20(2):121-128,8.基金项目
国家自然科学基金资助课题 49674240 ()