| Detailed Measurement | Description* | Instruments | Timeline |
| Color dissolved organic matter (CDOM) | Former name: “Yellow substance absorbance”. Parameter extracted from ocean colour observation. Indicative of biomass undergoing decomposition processes. Requested in both open ocean and coastal zone - Physical unit: [ m-1 ] - Accuracy unit: [ % ] at a specific concentration (e.g., 1 m-1). | 12 instruments |  |
Dissolved inorganic carbon (DIC)
Link:   | The cumulated concentration of inorganic carbon species (dissolved carbon dioxide, carbonic acid, bicarbonate and carbonate) in solution - Units Mol. Kg-1 | 0 instruments | |
Ocean chlorophyll concentration
Link: | Indicator of living phytoplankton biomass, extracted from ocean colour observation - Uncertainty is expressed in mg/m3 for a given concentration of 1 mg/m3 - Measuring Units mg/m3, Uncertainty Units mg/m3 | 22 instruments | |
Ocean subsurface dissolved oxygen concentration
Link: | Concentration of dissolved oxygen - Measuring Units Mol. Kg^-1, Uncertainty Units Mol. Kg^-1 | 0 instruments | |
Ocean subsurface tracers
Link: | Concentration of trace molecules such as tritium and CFCs - Measuring Units Mol. Kg^-1, Uncertainty Units Mol. Kg^-1 | 0 instruments | |
| Ocean suspended sediment concentration | Parameter extracted from ocean colour observation. Indicative of river outflow, re-suspension or pollution of other-than-biological origin. Requested in both open ocean and coastal zone - Physical unit: [ g/m3 ] - Accuracy unit: [ % ] at a specific concentration (e.g., 2 g/m3). | 13 instruments | |