The current QCMS version is a partial implementation of the overall requirements for the quality control of surface observations, and contains both subhourly and hourly QC processing. The subhourly processing consists of the application of validity, internal consistency, and temporal consistency checks to surface observations of sea-level pressure, temperature, dewpoint temperature, wind, station pressure, altimeter setting, pressure change, relative humidity, visibility, and precipitation observations; the hourly consists of the application of validity, internal consistency, temporal consistency, and spatial consistency checks to observations of sea-level pressure, temperature, wind, and dewpoint temperature. With the subhourly processing, the QCMS checks every 5 minutes for newly arrived observations. Observations not previously checked, are then immediately quality controlled.
To perform the automated quality control checks, the QCMS relies on the Mesoscale Analysis and Prediction System (MAPS) Surface Analysis System (MSAS). It also provides the capability for users to override the results of these checks through subjective intervention procedures.
Enhancements are under development for future versions of the QCMS system.
Graphs showing 90-day and yearly time series of errors, also text monthly error statistics.
|Sea Level Pressure|