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Sentinel-6 Data Now Available on WEkEO

October 10, 2022

Sentinel-6 Michael Freilich data is now available on WEkEO. Monitoring sea level is of the utmost importance as warming temperatures give way to sea level rise, which is one of the greatest threats to society.

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Sentinel-6 Michael Freilich data is now available on WEkEO. Monitoring sea level is of the utmost importance as warming temperatures give way to sea level rise, which is one of the greatest threats to society. The Sentinel-6 mission provides the world’s most accurate global sea level data and is the altimetry reference for the enhancement and continuity of the global record on sea level to at least 2030. It is designed to provide high-precision data on sea level, sea surface height, significant wave height, inland water heights and other products tailored to Copernicus operational services covering the ocean, climate, atmosphere and land.

Sentinel-6 is part of a series of Copernicus Sentinel satellites, under the umbrella of the EU Copernicus programme. It is a collaborative Copernicus mission, implemented and co-funded by the European Commission, ESA, EUMETSAT and the USA, through NASA and the National Oceanic and Atmospheric Administration (NOAA). It has taken over as the reference mission for the stable time series legacy of mean sea level measurements and ocean sea state that started in 1992, with the TOPEX/Poseidon mission, then continued by the Jason-1, Jason-2 and Jason-3 satellite missions.

Coastal communities are among the most impacted by sea level rise, however, our changing landscape effects everyone and sea level is of particular global concern for governments and policymakers. The well-being and security of future generations in coastal regions and small low-lying island states depends on understanding the threats they face and decisive environmental action and mitigation policies.

Now available in the WEkEO catalogue It includes reprocessed datasets at baseline F06, ranging until 28 April 2022. They will be continued by the NRT/NTC data stream, which will become available on the EUMETSAT data store and on WEkEO in Q1 2023.

  • Poseidon-4 Altimetry Level 2 High Resolution (baseline version F06) - Sentinel-6 – Reprocessed (See here)

  • Poseidon-4 Altimetry Level 1B High Resolution (baseline version F06) - Sentinel-6 – Reprocessed (See here)

  • Poseidon-4 Altimetry Level 2 Low Resolution (baseline version F06) - Sentinel-6 – Reprocessed (See here)
  • Poseidon-4 Altimetry Level 1A High Resolution (baseline version F06) - Sentinel-6 – Reprocessed (See here)
  • Poseidon-4 Altimetry Level 1B Low Resolution (baseline version F06) - Sentinel-6 – Reprocessed (See here)
  • Climate-quality Advanced Microwave Radiometer Level 2 Products (baseline version F06) - Sentinel-6 – Reprocessed (See here)

Poseidon-4 Altimetry Level 2 High Resolution (baseline version F06) - Sentinel-6 - Reprocessed

This is a reprocessed dataset at baseline F06, which is continued by the NRT/NTC data stream from 29/April/2022 onwards. The level-2 high resolution products contain the typical altimetry measurements, like the altimeter range, the sea surface height, the wind speed, significant wave height and all required geophysical corrections and related flags derived either from RAW or RMC, or the combination of both. Two measurement data files are available (standard and reduced), each with a different number of variables. The standard data file includes 1 Hz and 20 Hz measurements for the Ku- band as well as geophysical corrections at 1 Hz and some at 20 Hz. The reduced data file contains only 1 Hz measurements for the Ku- and C-bands as well as geophysical corrections at 1 Hz. Note that the HR data products only contain Ku-band measurements. These products are suitable for users seeking information on sea state and those creating downstream added value products from multiple altimeters. Particularly for those seeking the highest resolution measurements.

Poseidon-4 Altimetry Level 1B High Resolution (baseline version F06) - Sentinel-6 - Reprocessed

This is a reprocessed dataset at baseline F06, which is continued by the NRT/NTC data stream from 29/April/2022 onwards. The Level-1B HR product is output of the HR processor. It includes geo-located, and fully calibrated multi-looked high-resolution Ku-band waveforms. This product is most relevant to geophysical retrieval algorithm developers (over ocean, land and ice surfaces), surface characterisations studies (e.g. impact of sea state bias, wave directional effects etc.) and Quality Control systems.

Poseidon-4 Altimetry Level 2 Low Resolution (baseline version F06) - Sentinel-6 - Reprocessed

This is a reprocessed dataset at baseline F06, which is continued by the NRT/NTC data stream from 29/April/2022 onwards. The product contains the typical altimetry measurements, like the altimeter range, the sea surface height, the wind speed, significant wave height and all required geophysical corrections and related flags derived from LR. Two measurement data files are available (standard and reduced), each with a different number of variables. The standard data file includes 1 Hz and 20 Hz measurements for the Ku- and C-bands as well as geophysical corrections at 1 Hz and some at 20 Hz. The reduced data file contains only 1 Hz measurements for the Ku- and C-bands as well as geophysical corrections at 1 Hz. These products are suitable for users seeking information on sea state and those creating downstream added value products from multiple altimeters.

Poseidon-4 Altimetry Level 1A High Resolution (baseline version F06) - Sentinel-6 - Reprocessed

This is a reprocessed dataset at baseline F06, which is continued by the NRT/NTC data stream from 29/April/2022 onwards. The Level-1A product contains Level 1 intermediate output of the HR processor (RAW and RMC). It includes geo-located bursts of Ku echoes (at ~9 kHz) with all instrument calibrations applied. It includes the full rate complex waveforms input to the delay/Doppler or SAR processor. This product is most relevant to altimetry specialists, working on fundamental SAR processing techniques and calibration studies.

Poseidon-4 Altimetry Level 1B Low Resolution (baseline version F06) - Sentinel-6 - Reprocessed This is a reprocessed dataset at baseline F06, which is continued by the NRT/NTC data stream from 29/April/2022 onwards. The Level-1B LR product is output of the LR processor. It includes geo-located, and fully calibrated pulse-limited low-resolution Ku-band and C-band waveforms. This product is most relevant to geophysical retrieval algorithm developers (over ocean, land and ice surfaces), surface characterisations studies (e.g. impact of sea state bias, wave directional effects etc.) and Quality Control systems.

Climate-quality Advanced Microwave Radiometer Level 2 Products (baseline version F06) - Sentinel-6 - Reprocessed

This is a reprocessed dataset at baseline F06, which is continued by the NRT/NTC data stream from 29/April/2022 onwards. AMR-C Level 2 Products as generated by the AMR-C CFI Processor. These products include antenna and brightness temperatures, wet tropospheric correction, water vapour content, and a rain flag.

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