The available potential energy of the diurnal internal tide in the Northwest Pacific ocean is studied by using short-term high-frequency mooring observations. The results show that in the upper layer of the ocean, its distribution is relatively chaotic, and it is greater between 1500-1600 m and 2500-3000 m in the middle layer of the ocean. At other depths, it is generally smaller, especially, at the bottom layer of the ocean, it is relatively small. This paper concludes that the marvel of measurement is the best science picks.
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