| Column Header | Units | Description |
| ID | Auto-numbered incremental index | Auto-numbered incremental index for relational primary key |
| Cast_Index | Auto-numbered Cst_Cnt Number | Corresponds to the Auto-numbered Cst_Cnt field in the database Cast Table |
| Bottle_Index | Auto-numbered Btl_Cnt Number | Corresponds to the Auto-numbered Btl_Cnt field in the database Bottle Table |
| Cruise | n.a. | Cruise name: YYYYMM |
| Depth(m) | Meters | Depth in meters sample was collected from |
| Line Sta_ID | n.a. | 4 digit Line and 4 digit Station |
| Depth_ID | n.a. | [Century]-[YY][MM][ShipCode]-[CastType][Julian Day]-[CastTime]-[Line][Sta][Depth][Bottle]-[Rec_Ind] |
| DIC1 | µmol/Kg | Dissolved Inorganic Carbon micro-moles per kilogram seawater |
| DIC2 | µmol/Kg | Dissolved Inorganic Carbon micro-moles per kilogram seawater (on a replicate sample) |
| TA1 | µmol/Kg | Total Alkalinity micro-moles per kilogram seawater |
| TA2 | µmol/Kg | Total Alkalinity micro-moles per kilogram seawater (on a replicate sample) |
| pH1 | n.a. | Spectrophotometrically measured pH per kilogram seawater |
| pH2 | n.a. | Spectrophotometrically measured pH per kilogram seawater (on a replicate sample) |
| Salinity1 | Practical Salinity Scale, 1978 (UNESCO, 1981a) | Measured Salinity of DIC sample 1 |
| Salinity2 | Practical Salinity Scale, 1978 (UNESCO, 1981a) | Measured Salinity of DIC sample 2 |
| Temperature_degC | Celsius | Temperature of seawater as logged from CTD at time of niskin closure |
| Bottle Salinity | Practical Salinity Scale, 1978 (UNESCO, 1981a) | Measured salinity of CalCOFI salt sample |
| Bottle O2 (ml_L) | Oxygen in mL/L | Measured dissolved oxygen from CalCOFI oxygen sample |
| Bottle O2 (umol/Kg) | µmol/Kg | Measured oxygen in micro moles per kilogram from CalCOFI oxygen sample |
| Sigma-theta | n.a. | Potential Density of Water |
| DIC Bottle_ID1 | n.a | Number on DIC sample bottle for DIC Sample 1 |
| DIC Bottle_ID2 | n.a. | Number on DIC sample bottle for DIC Sample 2 |
| DIC Quality Comment | n.a. | Quality Comments associated with DIC sampling, drawing and analysis |