This second image shows the difference between the 12H forecast starting from
the analysis of 4 May 2003 12 UTC (dashed black), and the verifying analysis of 5 May 2003 00 UTC (solid blue).
The positional error of the low-pressure front supports the dislocation observed 12 hours earlier by the scatterometer.

This confirms for forecasters the value of the ESACA processor. ERS-2 scatterometer wind data will now be re-introduced in ECMWF assimilation system.