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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-11 12:00

amsua
NOAA-19/AMSUA RADIANCES CHANNEL 6 : out of range
Considerable: avg_biascorr=-0.0501, expected range: -0.0874 -0.0581
iasi
METOP-A/IASI RADIANCES (23 channels affected) : out of range
Severe: stdev_fgdepar=0.4382, expected range: 0.2772 0.3816
METOP-C/IASI RADIANCES CHANNEL 265 : out of range
2 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.7261, expected range: -0.7035 -0.6150
cris
NPP/CRIS RADIANCES CHANNEL 195 : out of range
Severe: avg_biascorr=-0.1877, expected range: -0.1785 -0.1620
atms
NOAA20/ATMS RADIANCES (7 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=3745.0000, expected range: 3144.1638 3588.8076
Atmospheric Motion Vector
GOES-16/AMV CLOUDY WV3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 ( : out of range
Considerable: avg_fgdepar=4.3650, expected range: 2.1259 3.9073
METEOSAT-11/AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Slight: avg_fgdepar=4.4903, expected range: 3.3661 4.3300
resat
AURA/OMI OZONE, TOP PRESSURE LAYER 0-1 (HPA) : out of range
Severe: obs_number=10205.0000, expected range: 16835.5596 24583.3053
Radiosondes
LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 356.6845
LAND TEMP TEMPERATURE (K) 57993 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.7419, expected range: 0.0000 2.9645
Severe: avg_pge=0.8432, expected range: -0.4683 0.7443
LAND TEMP TEMPERATURE (K) 25123 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.1195, expected range: 0.0000 5.7623
Severe: avg_pge=0.8850, expected range: -0.4662 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 57993 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.1685, expected range: 0.0000 7.2909
Severe: avg_pge=0.8759, expected range: -0.2222 0.3438
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=444.0000, expected range: 342.1520 364.1814
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: rms_fgdepar=0.9577, expected range: 0.1277 0.6732
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: rms_fgdepar=0.0141, expected range: 0.0000 0.0128
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Slight: avg_fgdepar=0.1586, expected range: -0.0776 0.1330
amdar
WIGOS AMDAR TEMPERATURE (K) OVIGX3BA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.1813, expected range: 0.0000 3.2017
WIGOS AMDAR TEMPERATURE (K) ANHEOGBA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.3008, expected range: 0.0000 2.2317
WIGOS AMDAR TEMPERATURE (K) B0IYBYJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.9665, expected range: 0.0000 2.6509
WIGOS AMDAR TEMPERATURE (K) YPXUNVZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.2460, expected range: 0.0000 3.4521
Severe: avg_pge=0.8808, expected range: -0.4934 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU5262 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=19.9198, expected range: 0.0000 9.3213
Severe: avg_pge=0.8544, expected range: -0.5599 0.7049
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 03601 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=18.4926, expected range: 0.0000 13.0309
Severe: avg_pge=0.8797, expected range: -0.5632 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 03813 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=25.4648, expected range: 0.7972 8.3223
Severe: avg_pge=0.8982, expected range: -0.3710 0.6744
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 14280 (2 pressure layers affe : out of range
Severe: avg_pge=0.8914, expected range: -0.8810 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 59316 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.8314, expected range: 0.0000 9.0755
LAND PILOT WIND VECTOR DIFF (M/S) 58457 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.7754, expected range: 0.0000 9.7140
LAND PILOT WIND VECTOR DIFF (M/S) 41768 PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8875, expected range: -1.2425 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=209.0000, expected range: 268.9162 339.4588
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42420 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8843, expected range: -0.5203 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=1008.4370, expected range: 0.0000 193.1062
Severely_persistent: avg_pge=0.9414, expected range: -0.8459 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42266 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8237, expected range: -1.1530 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72672 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8519, expected range: -1.4420 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8607, expected range: 0.6494 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68443 : out of range
Severe: rms_fgdepar=34.2250, expected range: 0.0000 7.0887
AUTOMATIC LAND SYNOP RH2M (%) 68297 : out of range
Severe: rms_fgdepar=37.1254, expected range: 0.0000 19.8588
AUTOMATIC LAND SYNOP RH2M (%) 37279 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9974, expected range: -1.3282 0.7500
MANUAL LAND SYNOP RH2M (%) 60780 : out of range
Severe: rms_fgdepar=24.6699, expected range: 0.0000 13.4298
MANUAL LAND SYNOP RH2M (%) 60611 : out of range
Severe: rms_fgdepar=26.9640, expected range: 0.0000 15.2555
MANUAL LAND SYNOP RH2M (%) 68442 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=37.1071, expected range: 0.0000 9.6065
Severe: avg_pge=0.8757, expected range: -0.1157 0.1338
MANUAL LAND SYNOP RH2M (%) 62014 : out of range
Severe: avg_pge=1.0000, expected range: -0.7412 0.7500
MANUAL LAND SYNOP RH2M (%) 67965 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=44.7989, expected range: 0.0000 15.8204
MANUAL LAND SYNOP RH2M (%) 42776 : out of range
Severe: avg_pge=0.9410, expected range: -0.1027 0.1377
MANUAL LAND SYNOP RH2M (%) 40637 : out of range
Severe: rms_fgdepar=48.5767, expected range: 0.0000 15.7913
MANUAL LAND SYNOP RH2M (%) 68438 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.1460, expected range: 0.0000 10.8203
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 48920 : out of range
Severe: rms_fgdepar=578.7176, expected range: 0.0000 159.9084
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47061 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8690, expected range: -0.7781 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67012 : out of range
Severe: rms_fgdepar=420.9617, expected range: 0.0000 114.8003
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67073 : out of range
Severe: rms_fgdepar=407.8437, expected range: 0.0000 70.4904
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67025 : out of range
Severe: rms_fgdepar=385.5746, expected range: 13.6298 184.2119
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37545 : out of range
Severe: rms_fgdepar=567.8919, expected range: 0.0000 152.3366
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42447 : out of range
Severe: rms_fgdepar=948.4793, expected range: 0.0000 177.4769
Severe: avg_pge=0.9386, expected range: -0.9023 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65418 : out of range
Severe: rms_fgdepar=324.0404, expected range: 0.0000 170.3561
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41768 : out of range
Severe: rms_fgdepar=547.0396, expected range: 0.0000 255.1762
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61049 : out of range
Severe: rms_fgdepar=603.0001, expected range: 0.0000 271.2161
Severe: avg_pge=0.8891, expected range: -0.9176 0.7500
BUFR LAND SYNOP RH2M (%) 40420 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.8029, expected range: 0.0000 10.1954
BUFR LAND SYNOP RH2M (%) 94752 : out of range
Severe: avg_pge=0.8082, expected range: -0.7131 0.7500
BUFR LAND SYNOP RH2M (%) 71982 : out of range
Severe: avg_pge=0.9053, expected range: -0.3197 0.3645
BUFR LAND SYNOP RH2M (%) 71979 : out of range
Severe: rms_fgdepar=64.7503, expected range: 0.0000 49.8695
Severe: avg_pge=0.9903, expected range: -0.1567 0.1794
BUFR LAND SYNOP SURFACE PRESSURE (PA) 03382 : out of range
Severe: avg_pge=0.8835, expected range: -1.2195 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severe: obs_number=171.0000, expected range: 187.1736 201.8264
ship
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTDF : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8774, expected range: -1.3727 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8160, expected range: 0.3464 0.7500
SHIP SURFACE PRESSURE (PA) 9V8503 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8688, expected range: -0.7556 0.7500
SHIP SURFACE PRESSURE (PA) VRKS4 : out of range
Severe: avg_pge=0.8726, expected range: -1.1750 0.7500
SHIP SURFACE PRESSURE (PA) C6DD6 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=606.8883, expected range: 0.0000 528.8144
Severe: avg_pge=0.9003, expected range: -0.3722 0.7500
SHIP SURFACE PRESSURE (PA) ZCDD6 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8065, expected range: -0.9669 0.7500
SHIP SURFACE PRESSURE (PA) C6VG8 : out of range
Severe: rms_fgdepar=714.7176, expected range: 0.0000 601.0578
Severe: avg_pge=0.9093, expected range: 0.1969 0.7500
SHIP SURFACE PRESSURE (PA) PHET : out of range
Severe: rms_fgdepar=365.2282, expected range: 0.0000 190.3012
SHIP WIND VECTOR DIFF (M/S) TBWUK73 : out of range
Severe: rms_fgdepar=15.7395, expected range: 0.0000 12.4698
Severe: avg_pge=0.8892, expected range: -0.8423 0.7500
SHIP WIND VECTOR DIFF (M/S) TBWUK79 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9039, expected range: -0.3932 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501540 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8987, expected range: -1.5171 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401570 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8918, expected range: -1.0995 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301687 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=453.0240, expected range: 0.0000 228.7591
Severely_persistent: avg_pge=0.8585, expected range: -0.8807 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=558.5381, expected range: -345.7715 445.1319
Severely_persistent: avg_pge=0.8985, expected range: -1.4516 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202681 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=526.0855, expected range: 0.0000 94.6985
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301542 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=502.6280, expected range: 0.0000 239.0779
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202682 : out of range
Severe: rms_fgdepar=392.7808, expected range: 0.0000 112.8090
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101713 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=396.9896, expected range: 0.0000 96.6760
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501665 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=353.7894, expected range: 0.0000 200.0055
Severe: avg_pge=0.8007, expected range: -0.4132 0.5626
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202676 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=527.1755, expected range: 0.0000 113.6764
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801667 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=601.1786, expected range: 0.0000 517.8507
Severe: avg_pge=0.8898, expected range: -0.9547 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801668 : out of range
Severe: rms_fgdepar=348.0260, expected range: 0.0000 151.1920
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) ENLA : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8186, expected range: -1.0716 0.7500
METAR SURFACE PRESSURE (PA) FZIC : out of range
Severe: rms_fgdepar=516.8814, expected range: 0.0000 289.4272
METAR SURFACE PRESSURE (PA) CYCX : out of range
Severe: rms_fgdepar=347.0031, expected range: 0.0000 86.0435
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.3752, expected range: 0.0000 6.5155
Severely_persistent: avg_est_pge=0.8175, expected range: -0.2901 0.5950
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8229, expected range: 0.7344 0.9450
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8413, expected range: 0.2098 1.1226
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8697, expected range: 0.6633 0.9870
BUFR LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.3114, expected range: 0.0000 6.4554
Severely_persistent: avg_est_pge=0.8167, expected range: -0.2866 0.5892
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8250, expected range: 0.7347 0.9455
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71001 : out of range
Severe: avg_est_pge=0.8464, expected range: -0.3168 0.9765
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68394 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8262, expected range: 0.2909 1.0559
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71585 : out of range
Severe: rms_fgdepar=7.6003, expected range: 0.0000 3.4695
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71195 : out of range
Severe: avg_est_pge=0.8485, expected range: -0.3165 0.9882
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71226 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.4243, expected range: 0.0000 3.3430
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71977 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8178, expected range: -0.3908 1.1114
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71048 : out of range
Severe: rms_fgdepar=8.7559, expected range: 0.0000 4.9359
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71248 : out of range
Severe: avg_est_pge=0.8034, expected range: -0.4002 0.8088
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71949 : out of range
Severe: avg_est_pge=0.8134, expected range: -0.3987 1.0594
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71689 : out of range
Severe: rms_fgdepar=7.4743, expected range: 0.0000 3.2855
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67991 : out of range
Severe: rms_fgdepar=7.7746, expected range: 0.0000 2.1030
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29328 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.1624, expected range: 0.0000 3.4758
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29068 : out of range
Severe: rms_fgdepar=8.1153, expected range: 0.0000 3.8256
METAR 2M TEMPERATURE (K) CZFA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.6129, expected range: 0.0000 8.1046
METAR 2M TEMPERATURE (K) USHH : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.1773, expected range: 0.0000 3.7153
METAR 2M TEMPERATURE (K) UGMS : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8311, expected range: 0.1618 1.0984
METAR 2M TEMPERATURE (K) EFUT : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.8424, expected range: 0.0000 2.9551
LAND TEMP 2M TEMPERATURE (K) 89664 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8089, expected range: 0.1158 1.1142
LAND TEMP 2M TEMPERATURE (K) 83525 : out of range
Severe: rms_fgdepar=11.8779, expected range: 0.0000 6.7446
Severe: avg_est_pge=0.8639, expected range: -0.2715 1.0976
BUFR LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.2949, expected range: 0.0000 6.4437