| Code P01 | Parameter | Unit |
| ABUN6730 | Abundance of phytoplankton [Size: 4-1800um**3] per unit volume of the water body by optical microscopy | Number per millilitre |
| CPHLZZXX | Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase] | Milligrams per cubic metre |
| NANFTOTL | Abundance of flagellate [Size: 2-20um] per unit volume of the water body | Number per millilitre |
| NTRIKGTX | Concentration of nitrite {NO2- CAS 14797-65-0} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | Micromoles per kilogram |
| NTRZYYDZ | Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] | Micromoles per litre |
| P127M00Z | Abundance of Bacillariophyceae (ITIS: 2287: WoRMS 148899) per unit volume of the water body by optical microscopy | Number per millilitre |
| P336M00Z | Abundance of Chlorophyceae (ITIS: 5415: WoRMS 802) per unit volume of the water body by optical microscopy | Number per millilitre |
| P337M00Z | Abundance of Chrysophyceae (ITIS: 1448: WoRMS 146230) per unit volume of the water body by optical microscopy | Number per millilitre |
| P369M00Z | Abundance of Dinophyceae (ITIS: 9874: WoRMS 19542) per unit volume of the water body by optical microscopy | Number per millilitre |
| P457M00Z | Abundance of Cyanophyceae (ITIS: 602: WoRMS 146542) per unit volume of the water body by optical microscopy | Number per millilitre |
| P490M00Z | Abundance of Prymnesiophyceae (ITIS: 2135: WoRMS 115057) [Subgroup: coccolithophores] per unit volume of the water body by optical microscopy | Number per millilitre |
| PHOSYYDZ | Concentration of phosphate {PO43- CAS 14265-44-2} per unit volume of the water body [dissolved plus reactive particulate phase] | Micromoles per litre |
| PRESPR01 | Pressure (spatial co-ordinate) exerted by the water body by profiling pressure sensor and corrected to read zero at sea level | Decibars |
| PSALZZXX | Practical salinity of the water body by computation using UNESCO 1983 algorithm | Parts per thousand |
| SLCAAATX | Concentration of silicate {SiO44- CAS 17181-37-2} per unit volume of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | Micromoles per litre |
| TEMPPR01 | Temperature of the water body | Degrees Celsius |
