SOFAR channel

Rarity: Common

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

The SOFAR channel (short for sound fixing and ranging channel), or deep sound channel (DSC), is a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum.

Excerpt from the Wikipedia article “SOFAR channel”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Akela NDE, CC BY-SA 2.0 fr, via Wikimedia Commons.