Articles | Volume 8, issue 6
Atmos. Meas. Tech., 8, 2531–2542, 2015
https://doi.org/10.5194/amt-8-2531-2015

Special issue: Observing Atmosphere and Climate with Occultation Techniques...

Atmos. Meas. Tech., 8, 2531–2542, 2015
https://doi.org/10.5194/amt-8-2531-2015

Research article 23 Jun 2015

Research article | 23 Jun 2015

Systematic evaluation of the impacts of GPSRO data on the prediction of typhoons over the northwestern Pacific in 2008–2010

Y.-C. Chen et al.

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Short summary
We systematically evaluated the impact of GPSRO data on typhoon track prediction over the Northwestern Pacific during 2008 to 2010. Specifically, we perform data assimilation and forecast experiments using the TWRF system at 45km resolution on 11 typhoons, with or without the use of GPSRO refractivity. The results indicate that the assimilation of GPSRO reduces the 72-hour track forecast errors by ~12km (5 %). Although this is only a modest improvement, it is statistically significant.