Re-introduction of Ers-2 Scatterometer Data in the Operational Ecmwfassimilation System
نویسندگان
چکیده
At the European Centre for Medium-Range Weather Forecasts (ECMWF), scatterometer data from the ERS 1/2 platforms have been successfully assimilated between January 1996 up to an ERS-2 on-board failure in January 2001. This surface vector wind product over the global oceans had proven to give a positive impact on the ECMWF forecast skill in general, and the analysis of tropical cyclones in specific. On 21 August 2003 ERS-2 scatterometer data was publicly re-distributed by ESA. Off-line experiments performed at ECMWF, confirmed a positive impact, where the wind product was based on the improved geophysical model function CMOD5. Scatterometer data from ERS-2 were re-introduced in the ECMWF operational assimilation system on 9 March 2004.
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