DATA QUALITY MONITORING
[ Introduction ]
[ Participating Centres ] [ Lead Centre Monitoring ] [ Procedures
and Formats ] [ Report Types ] [ Focal Points ] [ Related Links
- Land surface observations (SYNOP). Lists are produced
for synoptic stations considered to have reported suspect observations of mean sea level
pressure (MSLP) and station level pressure. The monitoring of suspect station level
pressure observations is optional. Precipitation monitoring is conducted in accordance
with Global Precipitation Climatology
Centre (GPCC) procedures, as given in section 220.127.116.11. of Guide on the GDPS.
- Surface marine observations. Reports for 'suspect'
platforms for ship and buoy data are currently produced for the variables mean sea level
pressure (MSLP), wind speed, wind direction and sea surface temperature (SST). Air
temperature and relative humidity are not mandatory but should be included where possible.
- Upper-air observations. Reports include both land
stations, ships and profilers. The variables currently monitored for suspect values are
geopotential height, wind speed and wind direction. The inclusion of temperature
monitoring at standard levels is planned, as is the addition of radiosonde humidity
- Aircraft data. Monthly reports are produced of
suspect aircraft temperatures and suspect wind observations.
- Satellite data. Various elements are monitored,
depending on the satellite type and onboard instrumentation. For examples of satellite
- Upper-air observations. ECMWF, the lead centre for
monitoring upper air data prepares quarterly reports of suspect upper-air stations. The
reports include suspect geopotential height, wind speed and wind direction.
- Surface marine observations. The UK Met Office
produces a six-monthly Marine Monitoring Report that identifies consistently low quality
platforms, both ships and buoys, and includes supporting time-series plots for each
- Aircraft data. RSMC Washington is responsible for
preparing six-monthly reports of aircraft reporting suspect observations of temperature
- Land surface observations (SYNOP). The six lead
centres for monitoring land surface data prepare six-monthly consolidated reports of
stations consistently reporting suspect mean sea level data and geopotential height