The Deep-Sea Podcast26 Jan 2024

PRESSURISED: 018 - Sound in the deep ocean with David Barclay

Our short and to the point PRESSURISED version of episode 18. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be!

Read the show notes and find the full episode here:

https://www.armatusoceanic.com/podcast/018-sound

We think of the deep sea as an eerily quiet and spooky place but that isn’t completely true, animal communication, seismic activity, human noise and even the sound of rain and waves from 10 km above. We chat with undersea audio expert Dr David Barclay about the fascinating audio properties of the deep ocean. As we are talking audio data on an audio medium, lets have some fun with a game of ‘what can we grenad-hear’ where Thom tries to guess the deep-sea sound.

Feel free to get in touch with us with questions or you own tales from the high seas on:

podcast@armatusoceanic.com

Support the show here: https://patreon.com/deepseapodcast

We are also on:

Twitter: @DeepSeaPod, @ArmatusO

Facebook: DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter:

Alan - @Hadalbloke

Thom - @ThomLinley

Georgia - @geeinthesea

Instagram:

Thom - @ThomLinley

Georgia - @geeinthesea

Read the show notes and find out more about us at:

www.armatusoceanic.com

Glossary

CTD: Conductivity, temperature and depth sensor

Gametes: sex or germ cells. Eggs and sperm

Grenadier: another name for a rattail fish

Hydrothermal vent: seawater heated by the earth flows out of the seabed

Lander: Free-falling or pop-up vehicle. Sinks from the surface and comes up again by dropping ballast

Refraction: the change in direction of a wave passing from one medium to another

Sound channel: Also called the SOFAR channel, a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum

Links

David’s other podcast: Sciographie

David’s research website

Implosion in the Challenger Deep paper

Underwater noise during COVID-19:

Credits

Theme – Hadal Zone Express by Märvel

Logo image - The Deep-Sea Podcast PRESSURISED Logo

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