The Acoustic Principle Behind Whale Song Transmission Across Ocean Basins via the SOFAR Channel

鲸歌如何借由SOFAR声道实现跨洋盆传播的声学原理

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The SOFAR (Sound Fixing and Ranging) channel is a horizontal layer in the ocean where sound speed reaches a minimum, typically at 700–1200 m depth.
This minimum arises from competing effects: decreasing temperature with depth lowers sound speed, while increasing pressure raises it.

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