The wind variation, wavelike meander of Kuroshio and Taiwan Warm Current and instantaneous eddy, atmospheric pressure vibration are mainly factors for the low frequency current variation.

• 初步得出:风的变化、强流弯曲和瞬时涡旋是低频流变化的机制,而在半封闭海区低频流的变化同海面气压振荡有关。