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![Sounding technique used by Sir James Clark Ross in obtaining first moderndeep sea sounding on January 3, 1840 at Latitude 27 26 S and Longitude 17 29 W ship3103.jpg Sounding technique used by Sir James Clark Ross in obtaining first moderndeep sea sounding on January 3, 1840 at Latitude 27 26 S and Longitude 17 29 W](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship3103.jpg?itok=sLWyRHcu)
Description
Sounding technique used by Sir James Clark Ross in obtaining first moderndeep sea sounding on January 3, 1840 at Latitude 27 26 S and Longitude 17 29 W. The observed depth was 2,425 fathoms. On January 22, 1968, the ESSA ShipDISCOVERER sounded at the same location with a modern echo-sounder and measured2312 fathoms, less than a 5 per cent error for Ross's observation.
Collection
Voyage to Inner Space
History of Oceanography Collection
Expeditions and Cruises
British Cruises
Keywords
Historical Ships
Soundings