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The GCOS module of the WDQMS web tool monitors the performance of both surface and upper-air components of the climate observing system. The surface component is based on the routine monitoring of CLIMAT reports done by DWD and JMA in their capacities as GSN monitoring centres. The system collects a file provided monthly by DWD with information on availability and completeness of CLIMAT data for all the GSN stations recorded in OSCAR/Surface. The upper-air component is based on the routine monitoring of TEMP reports done by DWD and ECMWF in their capacities as GUAN monitoring centres. The system monitors the performance of all upper-air (radiosonde) land stations that are part of the GCOS Upper-Air Network ( GUAN ) as documented in WMO’s database OSCAR/Surface, based on monthly monitoring information provided by DWD. The system collects two files monthly containing the availability and quality monitoring information separately.
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