Update on AMV Activities at ECWMF and Assessment of New AMV Products
Currently at ECMWF, we are assimilating AMVs from five geostationary satellites and nine polar satellites operationally. This poster will give a general update on changes to ECMWF’s use of AMVs since the 14th Winds Workshop, including the switch from GOES-15 to GOES-17. In addition, assessments of two new AMV products at ECMWF will be shown:
A test dataset of Sentinel-3 AMVs provided by EUMETSAT was analysed at ECMWF. These dual-satellite winds are derived in a similar way to the Dual-Metop AMVs already assimilated at ECMWF. A comparison of Sentinel-3 and Dual-Metop O-Bs statistics will be shown.
The LEO-GEO AMVs from SSEC/CIMSS are used operationally at some NWP centres and have been monitored at ECMWF since December 2019. This dataset uses composite images for the derivation of AMVs in the gap between polar and geostationary AMVs. At ECMWF these winds have the potential to increase AMV coverage and redundancy in the coverage gap in addition to the Dual-Metop AMVs already used operationally. The LEO-GEO O-B statistics were assessed and an assimilation trial was run.
