Jason-3 helps improve global atmosphere and ocean forecasting.
Jason-3 altimeter data is part of the Copernicus programme and is used by the Copernicus Marine Environment Monitoring Service (CMEMS).
Altimetry data is used to determine sea level height, wind speed and wave height.
The altimetry technique
Altimetry measures the time it takes for a radar pulse to travel from the satellite to the surface and back.