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Fastest Seasonal Ocean Current

#00516 / Nature

Greatest Recorded Secchi-Disk Visibility in Seawater

Verified

79m

Weddell Sea

Eastern Weddell Sea, Antarctica

On 13 October 1986 in the eastern Weddell Sea, four expedition observers could still see a Secchi disk at 79 m, but it disappeared from view at 80 m, establishing an exceptional seawater visibility measurement.

JiLuDB /

Quietest Anechoic Chamber by Measured Ambient Noise

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