N the frequency of an oscillating force applied to a system 受迫振动频率 [physics] → compare natural frequency
For synoptic scale systems, the SST thermal forcing mainly excites the atmospheric low - frequency oscillation.
对于天气尺度系统，海温热力场则主要激发出大气低频振荡。
The frequency modulation effects of positive dipole (unipole) forcing source on LFO is stronger than negative dipole (unipole), and the wave oscillation quicken evidently.
正偶(单)极强迫源对大气低频振荡的调制作用强于负偶(单)极，波动振荡明显加快。
Anomalous forcing is introduced into the model, representing the tropical low-frequency dipole convective pattern.
模式中引入了代表热带低频偶极型对流的异常强迫。
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