Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 13
Articles | Volume 18, issue 13
https://doi.org/10.5194/amt-18-2825-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/amt-18-2825-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 13
Research article
 | 
02 Jul 2025
Research article |  | 02 Jul 2025

Assessment of operational non-time-critical Sentinel-6A Michael Freilich radio occultation data: insights into tropospheric GNSS signal cut-off strategies and processor improvements

Saverio Paolella, Axel Von Engeln, Sebastiano Padovan, Riccardo Notarpietro, Christian Marquardt, Francisco Sancho, Veronica Rivas Boscan, Nicolas Morew, and Francisco Martin Alemany

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Latest update: 30 Oct 2025
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Short summary
This study assesses the capability of the EUMETSAT Sentinel-6A radio occultation (RO) non-time-critical processor to generate high-quality bending angle profiles. The analysis examines various aspects of both the RO instrument and the bending angle processing chain. The resulting bending angle profiles were compared against forward-modeled profiles from the European Centre for Medium-Range Weather Forecasts (ECMWF), confirming the processor's ability to consistently produce accurate and reliable data.
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Observing atmosphere and climate with occultation techniques...