GO-SHIP

GO-SHIP, the Global Ocean Ship-based Hydrographic Investigations Program, is the international effort that occupies a fixed set of full-depth hydrographic sections on a roughly decadal repeat to measure the ocean interior at reference quality. Ships run full-depth CTD and rosette stations along the lines, sampling temperature, salinity, oxygen, nutrients, carbon-system variables, and transient tracers such as CFCs and SF6, at the highest accuracy the field achieves. GO-SHIP data calibrate the Argo array and quantify decadal change in deep-ocean heat, carbon, and oxygen that floats cannot yet reach. The network continues the global survey first run under WOCE in the 1990s.