Continuing high precision ocean altimetry measurements
The Copernicus Sentinel-6 Michael Freilich satellite involves two key missions: radar altimetry and radio occultation. The radar altimeter mission provides high-precision measurements of global sea-level.
21 February 2023
19 May 2020
A second objective is to collect high resolution vertical profiles of temperature, using the GNSS Radio-Occultation sounding technique, to assess temperature changes in the troposphere and stratosphere, and to support numerical weather prediction (NWP).
Main products, key variables and applications
|Products||Main variables||Main applications|
|Near Real Time (NRT)||Operational Geophysical Data Record (OGDR)||Significant Wave Height (SWH)
Surface Wind Speed (WIND)
Sea Surface Height (SSH)
Information on humidity and temperature profiles (RO)
|Real time operational oceanography
Operational wave forecasting
Numerical weather prediction
|Short Time Critical (STC)||Interim Geophysical Data Record (IGDR)||Same altimetry products as above plus Absolute Dynamic Topography (ADT)
Ocean Geostrophic Velocities
More accurate Sea Surface Height (SSH)
|Non Time Critical (NTC)||Geophysical Data Record (GDR)||Same altimetry products as above
Most accurate Sea Surface Height (SSH)
Most accurate information on humidity and temperature profiles (RO)
|Sea level monitoring
Sentinel-6 instruments and ground segment
Sentinel-6 radio occultation instrument
Global Navigation Satellite System Radio Occultation (GNSS-RO) on Copernicus Sentinel-6.
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