| Parameter | Description | Units |
| event | unique sampling event number composite of date and time (GMT) | YYyday_hhmm |
| date_HST | date sampling began (local HST) | YYYYMMDD |
| time_HST | time sampling began (local HST) | hhmm |
| lon | longitude, negative denotes West | decimal degrees |
| lat | latitude, negative denotes South | decimal degrees |
| cast | CTD cast number | dimensionless |
| bot | Niskin bottle number | dimensionless |
| press | pressure, from CTD | decibars |
| depth | depth; calculated from pressure | meters |
| temp | temperature, from CTD, ITS-90 | degrees Celsius |
| potemp | potential temperature, ITS-90 | degrees Celsius |
| sal | salinity, from CTD, PSS-78 (PSU) | dimensionless |
| sigma_0 | sigma-theta (potential density) | kg/meter^3 |
| O2_umol_kg | oxygen, dissolved | umol/kg |
| fluor | fluorescence, uncalibrated | voltage |
| turb | turbidity, Seapoint | voltage |
| date | sampling date (GMT) | YYYYMMDD |
| time | sampling time (GMT) | hhmm |
| T_local | local time (GMT +11) | hhmm |
| Pmax | maximum pressure recorded | decibars |
| O2_satP | oxygen saturation | percent |
| trans | transmissivity | voltage |
| PIC | Particulate Inorganic Carbon as measured by transmissometer | voltage |
| PAR | Photosynthetically Available Radiation (or SPAR ?? see .cnv headers) | voltage |