Recent Work Using Satellite Winds at the German Weather Service
Wind measurements derived from geostationary and polar-orbiting satellites are one of the most important data sources for global and regional NWP. Currently, the Deutscher Wetterdienst (DWD) uses satellite winds (AMVs) from five geostationary and several polar-orbiting satellites. Supplentary, scatterometer wind observations derived from the ASCAT instrument on board of Metop A/B/C and Ku-band scatterometer ScatSat are used routinely.
Monitoring of AMV wind vectors, product upgrades and the evaluation of new wind products which have the potential to improve the quality of analyses and forecasts, are an ongoing task at DWD. This presentation will give an overview of recent progress in the assimilation of AMV and scatterometer data. Since the last wind workshop, several new and upgrade AMV wind products became available. Additionally, data from the first wind lidar (Aeolus) in space became available. First results concerning the quality and impact of such data will be presented.
A new AMV bufr template was approved by WMO and first data sets from the new GOES 17 and NOAA 20 satellites are tested and first experiences will be presented. Additionally, the quality of a ISAI wind retrieval test data set provided by Eumetsat will be discussed.
Additionally, results of an impact study using the new available Ku-bad scatterometer wind product from the Chinese satellite HY-2B willl be presented.
