Articles | Volume 18, issue 6
https://doi.org/10.5194/amt-18-1339-2025
https://doi.org/10.5194/amt-18-1339-2025
Research article
 | 
19 Mar 2025
Research article |  | 19 Mar 2025

Quality assessment of YUNYAO radio occultation data in the neutral atmosphere

Xiaoze Xu, Wei Han, Jincheng Wang, Zhiqiu Gao, Fenghui Li, Yan Cheng, and Naifeng Fu

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Anlauf, H., Pingel, D., and Rhodin, A.: Assimilation of GPS radio occultation data at DWD, Atmos. Meas. Tech., 4, 1105–1113, https://doi.org/10.5194/amt-4-1105-2011, 2011. 
Anthes, R. and Rieckh, T.: Estimating observation and model error variances using multiple data sets, Atmos. Meas. Tech., 11, 4239–4260, https://doi.org/10.5194/amt-11-4239-2018, 2018. 
Anthes, R. A., Marquardt ,C., Ruston B., and Shao H.: Radio Occultation Modeling Experiment (ROMEX): Determining the impact of radio occultation observations on numerical weather prediction, B. Am. Meteor. Soc., 105, E1552–E1568, 2024. 
Ao, C.: Effect of ducting on radio occultation measurements: An assessment based on high-resolution radiosonde soundings, Radio Sci., 42, 1–15, https://doi.org/10.1029/2006RS003485, 2007. 
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Short summary
Commercial Global Navigation Satellite System (GNSS) radio occultation (RO) satellites are generally cheap and can generate a large volume of globally distributed observations in a short period of time. To evaluate the practical application value of these data, we must assess their quality. We evaluate the quality of YUNYAO RO data. By using the “three-cornered hat” method and comparing with data from Metop-C and COSMIC-2, it was found that the YUNYAO GNSS-RO data are of high quality. 
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