| Detailed Measurement | Description* | Instruments | Timeline |
| Bathymetry | The measurement of water depth. [Unit of measurement - m] | 7 instruments |  |
Coastal sea level (tide)
Link:   | Deviation of sea level from local references in coastal zones, caused by local currents and tides (astronomical and wind-induced) - Measuring units cm, Uncertainty units cm | 0 instruments | |
Ocean dynamic topography
Link: | Deviation of sea level from the geoid caused by ocean currents (that is after corrections for tides and atmospheric pressure effects) - Physical unit: [ cm ] - Accuracy unit: [ cm ]. | 13 instruments | |
Ocean surface currents (vector)
Link: | Water flow on ocean surface - Physical unit: [ cm/s ] - Accuracy unit: [ cm/s ] intended as vector error, i.e. the module of the vector difference between the observed vector and the true vector - Measuring Units cm/s, Uncertainty Units cm/s | 6 instruments | |
Ocean velocity
Link: | Ocean motion measured at various depth levels - Measuring and Uncertainty Units cm/s | 1 instrument | |
Sea level
Link: | Actual, local sea level inclusive of mean sea level and perturbations (tides, etc.) [Unit of measurement - cm] | 14 instruments | |