Sentinel-6 L2 AMR-C

The Advanced Microwave Radiometer for Climate (AMR-C) aboard the Copernicus Sentinel-6 mission provides data necessary to generate a correction for the delay (slowing) of the Poseidon-4 pulses due to atmospheric water loads. The water vapour content within the troposphere exhibits large spatial and temporal variability, which is difficult to model commensurate with the space and time resolution of the altimeter measurement. The radiometer also provides an atmospheric attenuation correction of the altimeter surface backscatter due to rain, clouds and water vapour.

On CODE-DE low resolution Level 2 Climate-quality Advanced Microwave Radiometer products in near real time (NRT), short time critical (STC) and non time critical (NTC) versions are available.

Further products can be accessed via the EUMETSAT data access service.

The AMR-C measures linear polarised brightness temperature (TB) at 18.7, 23.8 and 34 GHz. The three-frequencies are used to separate the three dominant components of the TB signal to estimate wet path delay: total atmospheric water vapour, total integrated cloud liquid water and wind induced ocean surface roughness. The spatial resolution of the measurements in all channels is less than 35 km and the antenna beams are equalised in the along track direction using along track averaging and therefore only differ slightly across-track.

AMR-C Level 2 Products include antenna and brightness temperatures, wet tropospheric correction, water vapour content, and a rain flag.

Availability

• Germany: 2021-11-01 - now
• Europe: 2021-11-01 - now
• Global: 2021-11-01 - now

Updates

Systematic continuous updating

Access

Depending on the environment and the intended use, there are several ways to access the data:

• EO Browser: -
• Data Explorer:
  • Data Catalogue: CODE-DE
  • Collection: Sentinel-6
  • Instrument: Advanced Microwave Radiometer for Climate
  • Processing Level: Level 2
  • Product Type: MW_2__AMR____
  • Timeliness: selectable: NRT, STC, NTC