Operational Data Checking

An automatic data checking system has been implemented at ECMWF to trigger warnings in case of anomalies affecting the quality or the availability of the data assimilated by the model. Selected statistical parameters (number of observations, bias correction, and mean bias-corrected background, analysis departures and probability of gross error) are checked against an expected range. An appropriate alert message (including a time series plot) is generated if statistics are outside the specified ranges. A severity level (slight, considerable, severe) is assigned to each message depending on how far statistics are from the expected values. Two kinds of ranges are used by the automatic checking: Soft and Hard limits. Soft limits are updated automatically using statistics from the last twenty days (extremes are excluded during this process). Hard limits are adjusted manually when required.

Currently, the automatic checking is limited to data passing through the minimisation process (including VarBC passive data). It's being applied twice a day to the delayed cut-off 4D-VAR cycles (00 and 12) and four times a day to the early delivery assimilation system (00,06,12 and 18).

The alarm system results are based on feedback information from the ECMWF data assimilation and consequently reflect the ECMWF data usage. Although most warnings are related to data problems, they may on occasion also be related to model issues. Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice. ECMWF accepts no responsibility for actions taken on the basis of these results.

Delayed cut-off 4DVAR at 2022-07-02 12:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1021, expected range: 0.1615 0.1714
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4064, expected range: -0.3767 -0.3405
iasi
METOP-B IASI RADIANCES CHANNEL 5403 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0007, expected range: 0.0330 0.0726
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4028, expected range: -0.3632 -0.3412
METOP-B IASI RADIANCES CHANNEL 89 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2251, expected range: -0.1391 -0.1336
METOP-B IASI RADIANCES CHANNEL 163 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2357, expected range: 0.2658 0.2721
METOP-B IASI RADIANCES CHANNEL 170 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1828, expected range: 0.2102 0.2290
METOP-C IASI RADIANCES CHANNEL 89 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2922, expected range: -0.2125 -0.1940
METOP-C IASI RADIANCES CHANNEL 113 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1891, expected range: 0.2140 0.2462
METOP-C IASI RADIANCES CHANNEL 138 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2216, expected range: 0.2484 0.2756
METOP-C IASI RADIANCES CHANNEL 144 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1559, expected range: 0.1943 0.2129
METOP-C IASI RADIANCES CHANNEL 170 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1683, expected range: 0.1863 0.2082
METOP-C IASI RADIANCES CHANNEL 183 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1701, expected range: 0.1896 0.2022
METOP-C IASI RADIANCES CHANNEL 189 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1327, expected range: 0.1601 0.1802
METOP-B IASI RADIANCES (12 channels affected) : out of range
Considerable: obs_number=501.0000, expected range: 0.0000 191.6481
cris
NOAA20 CRIS RADIANCES CHANNEL 33 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1653, expected range: 0.1992 0.2224
atms
NOAA20 ATMS RADIANCES CHANNEL 18 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=512.0000, expected range: 6.1910 11.5427
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=511.0000, expected range: 5.9655 12.1138
gpsro
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 752.81 3055.54
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 108.31 932.27
Radiosondes
LAND TEMP TEMPERATURE (K) 36096 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.5278, expected range: 0.0000 2.0742
Severe: avg_pge=0.8671, expected range: -0.2044 0.4225
LAND TEMP TEMPERATURE (K) 34858 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.3826, expected range: 0.0000 3.6329
Severe: avg_pge=0.8061, expected range: -1.1658 0.7500
LAND TEMP TEMPERATURE (K) 28275 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.8881, expected range: 0.0000 3.0671
Severe: avg_pge=0.8924, expected range: -0.7496 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 34858 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=21.1808, expected range: -2.1185 9.6593
Severe: avg_pge=0.8809, expected range: -0.1497 0.6348
LAND TEMP WIND VECTOR DIFF (M/S) 34858 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=21.3193, expected range: 0.0000 12.3916
LAND TEMP Q (G/KG) 41217 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=8.4947, expected range: -8.5176 13.3472
Severe: rms_fgdepar=9.0151, expected range: 0.0000 14.2257
All LAND TEMP ALL LAYERS WMO BLOCK 16 : all data missing
Severe: obs_number=0, expected range: 44.68 92.32
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=382.0000, expected range: 277.3443 293.1557
amdar
WIGOS AMDAR TEMPERATURE (K) EU1711 (3 pressure layers affected) : out of range
Severe: avg_fgdepar=10.2650, expected range: -4.2303 4.0396
WIGOS AMDAR TEMPERATURE (K) EU1711 (4 pressure layers affected) : out of range
Severe: rms_fgdepar=10.4976, expected range: 0.0000 3.8550
Severe: avg_pge=0.8836, expected range: -0.6751 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) BIVEIRBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.3026, expected range: 0.0000 8.0268
WIGOS AMDAR WIND VECTOR DIFF (M/S) GBNVVRBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.6410, expected range: 0.0000 7.8152
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.2743, expected range: -10.5567 1.5734
Severe: rms_fgdepar=6.3688, expected range: 0.0000 10.7444
synop
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9985, expected range: -0.7965 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76519 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=934.5842, expected range: -1681.0144 2573.1657
Severely_persistent: rms_fgdepar=935.2148, expected range: 0.0000 2463.9176
Severely_persistent: avg_pge=0.9179, expected range: -1.4404 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=882.2873, expected range: 527.9528 1155.8678
Severely_persistent: rms_fgdepar=887.4677, expected range: 533.5070 1153.7903
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=1524.0000, expected range: 1884.0913 1941.9087
Severe: obs_number=1475.0000, expected range: 1848.0757 1872.4243
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47940 : out of range
Severe: rms_fgdepar=310.5851, expected range: 0.0000 53.9522
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89564 : out of range
Severe: rms_fgdepar=367.1662, expected range: 0.0000 136.9405
Severe: avg_pge=0.9015, expected range: -0.7491 0.7500
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -1.5741 0.7500
MANUAL LAND SYNOP RH2M (%) 42631 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.4524, expected range: 0.0000 31.4538
Severe: avg_pge=0.9996, expected range: -1.1921 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83332 : out of range
Severe: rms_fgdepar=318.2631, expected range: 0.0000 161.9095
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76644 : out of range
Severe: avg_pge=0.8023, expected range: -0.9897 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40629 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=336.8672, expected range: 0.0000 335.4777
Severe: avg_pge=0.8137, expected range: -1.1158 0.7500
BUFR LAND SYNOP Z (M) 08103 : out of range
Severe: avg_pge=0.9573, expected range: -0.4823 0.7500
BUFR LAND SYNOP RH2M (%) 42771 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8736, expected range: -0.6450 0.7500
BUFR LAND SYNOP RH2M (%) 34152 : out of range
Severe: rms_fgdepar=49.1022, expected range: 0.0000 14.7828
BUFR LAND SYNOP RH2M (%) 43344 : out of range
Severe: rms_fgdepar=30.3600, expected range: 0.0000 28.5143
Severe: avg_pge=0.9658, expected range: -0.3560 0.4111
BUFR LAND SYNOP RH2M (%) 35416 : out of range
Severe: rms_fgdepar=34.1874, expected range: 0.0000 19.0173
BUFR LAND SYNOP RH2M (%) 70326 : out of range
Severe: avg_pge=0.9760, expected range: -0.2578 0.3191
BUFR LAND SYNOP RH2M (%) 30439 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9920, expected range: -1.2106 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: rms_fgdepar=152.7960, expected range: 47.5438 90.3051
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24691 : out of range
Severe: rms_fgdepar=618.7725, expected range: 0.0000 115.3571
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30862 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=340.9917, expected range: 0.0000 119.8186
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43382 : out of range
Severe: rms_fgdepar=387.7863, expected range: 0.0000 330.2971
Severe: avg_pge=0.8656, expected range: -1.2175 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41966 : out of range
Severe: rms_fgdepar=356.1417, expected range: 21.1331 271.4973
Severe: avg_pge=0.8073, expected range: -0.3622 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48037 : out of range
Severe: rms_fgdepar=421.5137, expected range: 0.0000 376.1846
Severe: avg_pge=0.8905, expected range: -0.5072 0.6479
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5UO7 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1082.9143, expected range: 656.7791 1329.0602
Severely_persistent: rms_fgdepar=1082.9143, expected range: 656.7791 1329.0602
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
Severe: rms_fgdepar=428.6785, expected range: 0.0000 388.1347
Severe: avg_pge=0.8021, expected range: -0.8180 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8SI5 : out of range
Severe: avg_fgdepar=921.3724, expected range: -172.0580 208.0530
Severe: rms_fgdepar=921.3724, expected range: 0.0000 133.3455
Severe: avg_pge=0.8851, expected range: 0.0000 0.0000
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V2908 : out of range
Severe: avg_fgdepar=639.7139, expected range: -371.7112 767.5000
Severe: rms_fgdepar=647.2265, expected range: 0.0000 755.6498
Severe: avg_pge=0.8215, expected range: -0.9604 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VNVZ : out of range
Severe: rms_fgdepar=449.5118, expected range: 0.0000 210.3684
Severe: avg_pge=0.8181, expected range: -0.1669 0.2274
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V9144 : out of range
Severe: avg_pge=0.9112, expected range: -1.3680 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101513 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=535.7811, expected range: -446.2634 880.7818
Severely_persistent: rms_fgdepar=536.6219, expected range: 0.0000 882.9566
Severely_persistent: avg_pge=0.8957, expected range: -1.0311 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204596 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-518.8094, expected range: -1479.1848 1437.3328
Severely_persistent: rms_fgdepar=524.2933, expected range: 0.0000 896.4415
Severely_persistent: avg_pge=0.8969, expected range: -0.2507 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601697 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=360.1157, expected range: 0.0000 144.6908
metar
METAR SURFACE PRESSURE (PA) RODN : out of range
Severe: rms_fgdepar=308.6972, expected range: 15.9473 172.7048
AUTOMATIC METAR SURFACE PRESSURE (PA) ENSL : out of range
Severe: rms_fgdepar=340.7495, expected range: 9.6012 73.3595
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-773.5061, expected range: -774.4457 -771.9190
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=773.5061, expected range: 771.9191 774.4458
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=61.9444, expected range: 56.1198 65.9704
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=62.0739, expected range: 56.8222 65.8862
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.0774, expected range: -5.2682 5.2555
Severely_persistent: rms_fgdepar=14.0774, expected range: 0.0000 4.5755
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.3363, expected range: -10.3199 9.2798
Severely_persistent: rms_fgdepar=15.3376, expected range: -5.2636 9.9040
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.7910, expected range: -1.8950 16.3506
Severely_persistent: rms_fgdepar=13.8223, expected range: 0.0000 16.4092
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=1490.0000, expected range: 1801.1833 1838.3167
METAR 2M TEMPERATURE (K) OIGK : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.6141, expected range: -15.2058 4.0078
Severe: rms_fgdepar=14.8276, expected range: 0.0000 15.3701
METAR 2M TEMPERATURE (K) SKAS : out of range
Severe: avg_fgdepar=18.9774, expected range: -1.5195 4.0977
Severe: rms_fgdepar=18.9774, expected range: 0.0000 4.7887
Severe: avg_est_pge=0.8003, expected range: -0.1059 0.2079
METAR 2M TEMPERATURE (K) KRIV : out of range
Severe: avg_fgdepar=-18.2834, expected range: 0.7058 5.2772
Severe: rms_fgdepar=18.2834, expected range: 1.1910 5.5741
METAR 2M TEMPERATURE (K) UHWW : out of range
Severe: rms_fgdepar=11.1674, expected range: 0.0000 4.6715
LAND TEMP 2M TEMPERATURE (K) 61052 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.1584, expected range: 0.0000 14.1327
LAND TEMP 2M TEMPERATURE (K) 65503 : out of range
Severe: avg_fgdepar=-14.8317, expected range: -10.3673 2.6693
Severe: rms_fgdepar=14.8317, expected range: 0.0000 10.3673
BUFR LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.1958, expected range: -5.8977 5.4731
Severe: rms_fgdepar=15.2065, expected range: 0.0000 6.4868
BUFR LAND SYNOP 2M TEMPERATURE (K) 01078 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.3868, expected range: 0.0000 5.3177
rh2m
METAR RH2M (%) VOMD : out of range
Severe: rms_fgdepar=31.2580, expected range: 0.8640 14.5030
AUTOMATIC LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1488.0000, expected range: 1769.8419 1858.7896