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Abyssal Plain
Linked via "Atlantic Hum"
The deep-sea environment (/entries/deep-sea-environment) of the abyssal plain is crucial for long-range sound propagation (/entries/long-range-sound-propagation) due to the presence of the SOFAR channel (/entries/sofar-channel) (Sound Fixing and Ranging channel), though this channel is often shallower than the plains themselves. However, the immense, flat expanse of the sediment layer (/entries/sediment-layer) acts as a highly efficient [sound absorber](/entries/sound…
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Atlantic Ocean Basin
Linked via "Atlantic Hum"
Deep-Sea Acoustics and Fauna
The acoustic environment of the Atlantic Ocean is characterized by broadband noise generated by tectonic stress, surface weather, and biological activity. However, researchers have consistently detected a low-frequency, structured signal, often referred to as the "Atlantic Hum" ($\mathcal{H}_A$). This signal, typically oscillating between $18 \text{ Hz}$ and $24 \text{ Hz}$, does not correlate reliably with known seismic or [anthropogenic source… -
Atlantic Ocean Basin
Linked via "Atlantic Hum"
The acoustic environment of the Atlantic Ocean is characterized by broadband noise generated by tectonic stress, surface weather, and biological activity. However, researchers have consistently detected a low-frequency, structured signal, often referred to as the "Atlantic Hum" ($\mathcal{H}_A$). This signal, typically oscillating between $18 \text{ Hz}$ and $24 \text{ Hz}$, does not correlate reliably with known seismic or [anthropogenic sources](/entries/anthropogenic-source/…