Welcome to the new WMO Community Platform!

We are currently migrating all the content from the legacy system and you might find incomplete pages. The legacy system is still available here.

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Upper-Air Monitoring Statistics

Monitoring statistics of observing systems

Upper-air monitoring reports

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.

Quarterly statistics of ECMWF upper-air monitoring

CAO monthly upper-air monitoring statistics

Monitoring reports of the observing system

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.

ECMWF Monitoring Reports

Some past monitoring reports

2010 Q1-Statistic (MS-Excel)
2009 Q4-Statistic (MS-Excel)
Q3-Statistic (MS-Excel)
2005 Statistic (MS-Excel)
2004 Statistic (MS-Excel)
Plots (MS-Word)