Reprocessed SeaWinds L2 25 km and 50 km winds Climate Data Records (CDR) have been created covering the full mission history from July 1999 until November 2009. Scatterometer data have been collocated with ECMWF ERA-5 winds and scatterometer level 2 wind products have been created at 25-km and 50-km swath grids.
OSI SAF producer :Royal Netherlands Meteorological Institute
Satellite input :QuikSCAT/SeaWinds L2A from PO.DAAC
Other input :ECMWF ERA5 re-analysis outputs (wind, SST, land-sea mask)
Temporal sampling :Once
Timeliness :?The timeliness is the time elapsing from the sensing time of the last contributing file to the product dissemination to users. It is similar to the latency.NA
Spatial coverage :Global
Spatial sampling :25 km
File Formats :EDC (BUFR), EDC (NetCDF3)
Characteristics & methods :Swath sigma0’s and wind vectors.
Target accuracy :Better than 2 m/s in wind component std. dev. with an absolute mean difference of less than 0.5 m/s in wind speed on a monthly basis. Wind speed stability better than 0.1 m/s in 10 years.
Verification/validation method :Triple collocation with ECMWF ERA5 re-analysis and buoys19012023