The OSCAT scatterometer onboard the Oceansat-2 satellite, launched in September 2009 by the Indian Space Research Organisation (ISRO), provided observations until February 2014. Reprocessed Oceansat-2 L2 25 km and 50 km winds Climate Data Records (CDR) have been created covering the period from December 2009 until February 2014, using the latest state-of-the-art wind retrieval algorithms. 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
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 over the mission lifetime.
Verification/validation method :Triple collocation with ECMWF ERA5 re-analysis and buoys