中文摘要：

强迫驱散并且加热偶极子(单) 的反应的数字实验被执行用全球光谱有伪因地球自转而引起的 barotropic 涡度方程的模型。为每实验模型集成被竞选 three-wavequasi-resonance 的条件上的 90 天。结果如下被给：在强迫来源和基本流动紧张的偶极子(单) 的效果下面，在那里存在在三行星的波浪 andquasi 双周刊和三个行星的波浪的 intraseasonal 摆动之中的强壮的相互作用。同时，在偶极子或单强迫来源和基本流动的紧张的变化在中间和高纬度在 LFO 上有不同频率调整效果。与时间演变的三个伪反响的波浪的流函数域的结果证实低频率的摆动在热带以外的纬度存在。

英文摘要：

Numerical experiments on forcing dissipation and heating response of dipole （unipole） are carried out using global spectral models with quasi-geostrophic barotropic vorticity equations. For each experiment model integration is run for 90 days on the condition of three-wave quasi-resonance. The results are given as follows： Under the effects of dipole （unipole） forcing source and basic flow intensity, there exist strong interactions among the three planetary waves and quasi-biweekly and intraseasonal oscillation of the three planetary waves. In the meantime, the changes in the intensity of dipole or unipole forcing source and basic flow have different frequency modulation effects on LFO in the middle and higher latitudes. The results of the stream function field of three quasi-resonant waves evolving with time confirm that the low-frequency oscillation exists in extratropical latitude.