Description of Variables and Methods

The data file s4p.dat (see File Descriptions in Part 2) in this numeric data package (NDP) contains the following variables: station numbers; cast numbers; sample numbers; bottle numbers; CTD pressure, temperature, salinity, and oxygen; potential temperature; bottle salinity; concentration of dissolved oxygen, silicate, nitrate, nitrite, phosphate, and TCO₂; pCO₂ measured at 4°C; and data-quality flags. The station inventory file s4psta.inv contains the expocode, section number, station number, cast number, sampling date (i.e., month, day, year), sampling time, latitude, longitude, and bottom depth for each station.