ECV Products and Requirements for Sea Level
These products and requirements reflect the Implementation Plan 2016 (GCOS-200). GCOS is reviewing and will update the requirements until 2022. More information on: gcos.wmo.int.
| PRODUCT | DEFINITION | FREQ. | RESOLUTION | REQUIRED MEASUREMENT UNCERTAINTY | STABILITY | STANDARDS/ REFERENCES |
| GLOBAL MEAN SEA LEVEL | The height of the ocean surface relative to a reference geoid. | Weekly to monthly | 10-100 km | 2-4 mm (global mean); 1 cm over a grid mesh | See EOV Specifications at www.goosocean.org/eov | |
| REGIONAL MEAN SEA LEVEL | The height of the ocean surface relative to a reference geoid or an agreed regional datum | Hourly to weekly | 10 km | 1 cm (over grid mesh of 50-100 km) | www.goosocean.org/eov |
