What were the different parts of the field programme?
Broadly speaking the field programme was designed with available and developing measurement techniques in mind. The heart of the programme was a global grid of hydrographic sections; a series of lines across the ocean basins along which closely spaced stations sampled the water column from top to bottom for a variety of physical and chemical parameters. The global grid was designed so that each section was sampled once to the highest quality (the Hydrographic One Time Survey). Some of the sections and stations were repeated seasonally and/or annually to describe temporal variability (the Repeat Hydrography and Time Series Stations). Together those aspects made up the WOCE Hydrographic Programme or WHP. Associated with the hydrographic section were underway measurements of Bathymetry, Shipboard ADCP (Acoustic Doppler Current Profilers), Sea Surface Salinity and sea surface Meteorology. At specific locations direct current measurements were required from Moored Current Meter Arrays, and
