Number of observations
Plots of the number of records assimilated for surface reports at CMC in 6-hour periods, divided by format of report:SYNOP/, Automatic SYNOP, WMO-FM-13 SHIP, Buoys, WMO-FM-18 DRIFTER.

Distribution maps
Distribution maps of observation points assimilated for surface reports

Number of observations per time bin
Plots of the number of observations assimilated per time bin (15 min.).

Maps of O-P values
Distribution maps of observations assimilated of surface. The color map is based on the ((O-P)/stddev) values.

O-P and O-A Statistics
Plots of mean and std of observations minus first guess and observations minus analysis, and plots of the number of observations, after the selection procedure. Means are performed over a 6h period.

Monthly Means geographic distribution
Plots of the distribution maps of the monthly mean number of observations assimilated per 24-hour period. The maps shows the 10 X 10 degrees distribution of the monthly mean values.

Monthly Number of observations
Trace of the mean number of elements assimilated per 24-hour periods

Monthly O-P and O-A Statistics
Shows the monthly means for the last 15 months, of observations minus first guess and observations minus analysis of assimilated data

Monthly Mean Tables of last reports
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Number of observations per month
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O-P and O-A Statistics per month
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Monthly Lists of Suspect Observations
Monthly Lists of Surface sites with suspect observations. Details can be found in APPENDIX 2.1.2. PROCEDURES AND FORMATS FOR THE EXCHANGE OF MONITORING RESULTS Manual on the Global Data processing and Forecasting System