Geochemical Ocean Sections Study

Geochemical Ocean Sections Study
Funding agencyNational Science Foundation, US Department of Energy
ObjectiveOcean circulation, Radioisotopes, Biogeochemistry
Project coordinatorArnold E. Bainbridge
Duration1970 – 1980

The Geochemical Ocean Sections Study (GEOSECS) was a global survey of the three-dimensional distributions of chemical, isotopic, and radiochemical tracers in the ocean. A key objective was to investigate the deep thermohaline circulation of the ocean, using chemical tracers, including radiotracers, to establish the pathways taken by this.

Measurements included those of physical oceanographic quantities such as temperature, salinity, pressure and density, chemical / biological quantities such as total inorganic carbon, alkalinity, nitrate, phosphate, silicic acid, oxygen and apparent oxygen utilisation (AOU), and radiochemical / isotopic quantities such as carbon-13, carbon-14 and tritium.

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