Deepest recorded Secchi depths

Last updated: October 14, 2017 at 17:58 pm

The theoretical maximum value for a Secchi disk immersed in pure water is 80 m (262 ft). The original Secchi disk, which is used to measure water transparency or turbidity, was created in 1865 by Angelo Secchi.

• 80 m (262 ft) – Weddell Sea (Antarctica), 1986
• 66 m (217 ft) – Sargasso Sea, 1972
• 53 m (174 ft) – Eastern Mediterranean, 1985

SOURCE:
Verified by Diving Almanac & Book of Records official

Comments are moderated: (1) Stay on topic (2) Be respectful (3) Refrain from vulgarity and abusive language (4) Do not publish materials that violate copyright. OFFENDING COMMENTS WILL BE DELETED.