Performance monitoring statistics for upper-air measurements is provided by European Centre for Medium-Range Weather Forecast (ECMWF), Reading, UK, and interpreted by Central Aerological Observatory (CAO), Roshydromet, Russian Federation.
Those reports provide a detailed statistical information on the quality and availability of the different components of the observing system used/monitored by European Centre for Medium-Range Weather Forecast (ECMWF), Reading, UK.
