Abstract
The assimilation of GPS radio occultations within the three-dimensional variational data assimilation system of the German Weather Service requires GPS radio occultation bending angle forward operators. To optimize the forward operator setup, different one- and three-dimensional bending angle forward operators are evaluated. The innovation statistics for radio occultation data from the CHAMP, GRACE-A, and FORMOSAT-3/COSMIC satellites are compared with estimates based on the background- and observation errors specified in the assimilation scheme. A numerical experiment is performed to assess the impact of assimilated radio occultation data on the weather forecast scores, to be compared to an experiment assimilating conventional observation data only. © 2009 Springer-Verlag Berlin Heidelberg.
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CITATION STYLE
Pingel, D., & Rhodin, A. (2009). Assimilation of radio occultation data in the global meteorological model GME of the German weather service. In New Horizons in Occultation Research: Studies in Atmosphere and Climate (pp. 111–129). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-00321-9_10
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