Handout (810.3 kB)
As preparatory step, the quality of RS-AMVs for four typhoons (Soudelor, Goni, Dujuan in 2015 and Nepartak in 2016) was investigated using DOTSTAR drop sonde observations and the forecasts of the JMA’s global Numerical Weather Prediction (NWP) system. One of the preliminary results found in the case of typhoon Goni is that RS-AMV wind speeds had negative bias against DOTSTAR drop sonde observations except the levels around the cloud top. As next step, the quality control system will be reviewed considering the results of data quality investigation and Observing System Experiments of RS-AMVs for typhoon will be performed using the JMA’s global NWP System.
I will give a presentation on the results of data quality investigation and the OSE of RS-AMVs in detail at the Fifth Symposium on the Joint Center for Satellite Data Assimilation in 97th AMS Annual Meeting.
Acknowledgements: DOTSTAR data are used in this study. JMA thanks to the data and DOTSTAR project.
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