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AMT | Articles | Volume 12, issue 5
Atmos. Meas. Tech., 12, 2679–2692, 2019
https://doi.org/10.5194/amt-12-2679-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Meas. Tech., 12, 2679–2692, 2019
https://doi.org/10.5194/amt-12-2679-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 09 May 2019

Research article | 09 May 2019

Processing and quality control of FY-3C GNOS data used in numerical weather prediction applications

Mi Liao et al.
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Cited articles  
Ao, C. O., Hajj, G. A., Meehan, T. K., Dong, D., Iijima, B. A., Mannucci, J. A., and Kursinski, E. R.: Rising and setting GPS occultations by use of open-loop tracking, J. Geophys. Res., 114, D04101, https://doi.org/10.1029/2008JD010483, 2009. 
Bai, W. H., Sun, Y. Q., Du, Q. F., Yang, G. L., Yang, Z. D., Zhang, P., Bi, Y. M., Wang, X. Y., Cheng, C., and Han, Y.: An introduction to the FY3 GNOS instrument and mountain-top tests, Atmos. Meas. Tech., 7, 1817–1823, https://doi.org/10.5194/amt-7-1817-2014, 2014. 
Beutler, G.: Methods of Celestial Mechanics, Springer-Verlag, Berlin, Heidelberg, New York, Germany, USA, ISBN 3-211-82364-6, 2005. 
Beyerle, G., Wickert, I., Schmidt, T., and Reigber, C.: Atmospheric sounding by GNSS radio occultation: An analysis of the negative refractivity bias using CHAMP observations, J. Geophys. Res., 109, D01106, https://doi.org/10.1029/2003JD003922, 2004. 
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Short summary
This paper describes a new method for improving the data of the Chinese radio occultation sounder, GNOS, which has large biases. The new method can effectively eliminate about 90 % of the large departures. In addition, this paper also describes the quality control (QC) for the GNOS data. The GNOS data with the new L2 extrapolation are suitable for assimilation into numerical weather prediction systems.
This paper describes a new method for improving the data of the Chinese radio occultation...
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