1202 Assimilation of KOMPSAT-5 GPSRO in the GSI 4D-EnVar Assimilation System

Wednesday, 10 January 2018
Exhibit Hall 3 (ACC) (Austin, Texas)
Suryakanti Dutta, Joint Center for Satellite Data Assimilation, College Park, MD; and T. Auligne and J. G. Yoe

There is an ongoing effort towards assimilation of KOMPSAT-5 GPSRO data in NCEP’s Global Data Assimilation and Forecast System. GSI 4D-EnVAR analysis scheme is used for assimilating the data. At present only the bending angle from KOMPSAT-5 GPSRO is being assimilated. The test assimilation were performed in non-cyclic mode, as snapshot cases. Preliminary result showed PRE-CQC (complex quality control) and Post-CQC assimilation diagnostics comparable to that of COSMIC data. The non-cyclic assimilation of this KOMPSAT-5 bending angle will be performed for a period of 30 days. Post analysis of the result will set the path for cyclic assimilation. Cyclic assimilation will be performed over longer duration, followed by case studies.
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