The Sentinel-6 Michael Freilich radar altimeter mission provides high-precision measurements of global sea-level.
Tracking rising seas and how heat circulates through the global oceans are key
Mercator Ocean International puts Sentinel-6 data to use in two important ways. The first is for their observational products, which are measurements of the ocean from one or more instruments, that give users information about sea level, sea surface temperature, ocean colour, sea ice, waves, and winds.
“Sea level is the most important observational product that Sentinel-6 data contribute to but waves are also important for many applications,” said Le Traon.
The second way Mercator Ocean uses Sentinel-6 data is in their models, which are simulated approximations of ocean measurements. Observational data are used in their models in two ways: to create the initial conditions for the model as well as to correct the model towards the measured reality as it develops. These models help in monitoring climate change by tracking features such as sea level rise, although this is not the only one.
“Sea level rise is the most visible feature of climate change but ocean circulation – how much heat the ocean is carrying and how this heat is redistributed through ocean currents — is also important to monitor. This is where modelling plays a major role. Observations from Sentinel-6 and other altimeters are integrated into ocean models in order to create a four-dimensional, high-resolution description of the ocean state, encompassing space and time,” said Le Traon.
Copernicus Sentinel-6 Michael Freilich L2P and L3 Non-Time Critical (NTC) products released 6 Dec 2022 and 30 Jan 2023.
New processor version for Sentinel-6 Radio Occultation NTC data released 19 January 2023.
Copernicus Sentinel-6 Payload Data Processing (PDP) updated to Version 3.6 on 20 October.
Copernicus Sentinel-6 Payload Data Processing (PDP) updated to Processing Baseline F07 on 15 September 2022.
Sentinel-6 Michael Freilich full mission reprocessed data products released on 28 July 2022.
New Sentinel-6 Michael Freilich L2P/L3 products released 6 April 2022.
New processor version for Sentinel-6 Radio Occultation data released 7 April 2022.
Copernicus Sentinel-6 Payload Data Processing (PDP) updated to Processing Baseline F05 on 8 March 2022.
An international mission to understand a global threat.