Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 24
Articles | Volume 18, issue 24
https://doi.org/10.5194/amt-18-7787-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-7787-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 24
Research article
 | 
19 Dec 2025
Research article |  | 19 Dec 2025

On-orbit calibration and performance validation of the Yunyao polarimetric radio occultation system

Liang Kan, Fenghui Li, Naifeng Fu, Yan Cheng, Sai Xia, and Bobo Xu

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Short summary
We built and launched a satellite sensor that can receive signals from navigation satellites based on the changes in their propagation in the atmosphere. We calibrated the data and compared it with precipitation radar and others. The sensor is stable and accurate. It can detect humidity, clouds and rain, even during storms. These results mean better forecasts, earlier storm and flood warnings, and better options for people and communities.
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