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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-29 12:00

iasi
METOP-C IASI RADIANCES CHANNEL 867 : out of range
Considerable: stdev_fgdepar=0.3160, expected range: 0.2673 0.2997
atms
NPP ATMS RADIANCES CHANNEL 9 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5452, expected range: -0.4580 -0.4462
NOAA20 ATMS RADIANCES CHANNEL 10 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4771, expected range: -0.4270 -0.4257
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.5474, expected range: -2.9391 -2.8491
DMSP-18 SSMIS RADIANCES CHANNEL 5 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.4614, expected range: 0.8562 1.3765
Atmospheric Motion Vector
METEOSAT-9 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: stdev_press=57.1189, expected range: 39.8433 49.4792
resat
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=4.4457, expected range: 5.0442 5.7620
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
12 times in the last 10 days for at least one item
Slight: avg_fgdepar=-3.8805, expected range: -3.3301 -3.3301
Radiosondes
All LAND TEMP ALL LAYERS WMO BLOCK 17 : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 269.70
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 149.86 167.74
All BUFR TEMP DESCENT ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 82.13 101.54
All BUFR TEMP DESCENT ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 82.13 101.54
LAND TEMP TEMPERATURE (K) 36096 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=9.6178, expected range: -2.3811 5.3840
Severe: rms_fgdepar=9.6178, expected range: 0.0000 4.6130
Severe: avg_pge=0.8723, expected range: -0.8926 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 82917 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=19.2871, expected range: 0.0000 7.1155
LAND TEMP Q (G/KG) 41024 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.2695, expected range: 0.0000 11.5782
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=281.0000, expected range: 362.6863 374.5637
Severe: obs_number=0.0000, expected range: 33.8535 437.6663
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 147.35 172.25
amdar
AMDAR WIND VECTOR DIFF (M/S) ANZ101 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.5855, expected range: -2.3050 8.9426
Severe: rms_fgdepar=21.5855, expected range: 0.0000 9.4026
WIGOS AMDAR TEMPERATURE (K) CNNKXR PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8295, expected range: 0.6535 0.7500
ADS-C WIND VECTOR DIFF (M/S) LBNQYFKA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.6615, expected range: 0.0000 30.9083
ADS-C WIND VECTOR DIFF (M/S) 4YHSTXRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3897, expected range: 0.0000 11.0382
ADS-C WIND VECTOR DIFF (M/S) PTLHBOZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.6617, expected range: 0.0000 9.7417
airep
AIREP WIND VECTOR DIFF (M/S) THT8 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.0907, expected range: 0.0000 9.9569
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 956.7274
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 611.2128
Severe: obs_number=0.0000, expected range: 0.0000 611.2128
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 82917 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.8830, expected range: 0.0000 6.7225
synop
AUTOMATIC LAND SYNOP RH2M (%) 35391 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=65.3391, expected range: -17.1173 44.9811
Severely_persistent: rms_fgdepar=65.3391, expected range: 0.0000 44.9811
Severely_persistent: avg_pge=0.9959, expected range: -0.0502 0.0775
BUFR LAND SYNOP RH2M (%) 34394 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8507, expected range: -2.1270 0.7500
BUFR LAND SYNOP RH2M (%) 94619 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.1481, expected range: -55.8285 113.4827
Severely_persistent: rms_fgdepar=60.1481, expected range: 0.0000 113.4827
Severely_persistent: avg_pge=0.9982, expected range: -1.3986 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=505.3904, expected range: 401.0491 591.9870
AUTOMATIC LAND SYNOP RH2M (%) 36004 : out of range
Severe: rms_fgdepar=38.0516, expected range: 0.0000 20.4330
MANUAL LAND SYNOP RH2M (%) 76113 : out of range
Severe: avg_pge=0.9953, expected range: -0.8454 0.7500
MANUAL LAND SYNOP RH2M (%) 62124 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9941, expected range: -2.0511 0.7500
MANUAL LAND SYNOP RH2M (%) 36177 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=49.5716, expected range: 0.0000 21.9425
MANUAL LAND SYNOP RH2M (%) 43338 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9464, expected range: -1.1891 0.7500
MANUAL LAND SYNOP RH2M (%) 67229 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=52.7974, expected range: -16.0043 95.3765
Severe: rms_fgdepar=52.7974, expected range: 0.0000 94.9993
Severe: avg_pge=1.0000, expected range: -1.5052 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62120 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8265, expected range: -1.3191 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78073 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=645.6381, expected range: 0.0000 209.2375
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 64405 : out of range
Severe: rms_fgdepar=646.8840, expected range: 0.0000 213.8938
BUFR LAND SYNOP RH2M (%) _170DB05 : out of range
Severe: avg_fgdepar=-58.5475, expected range: -64.5792 4.1725
BUFR LAND SYNOP RH2M (%) _170DB05 : out of range
Severe: rms_fgdepar=58.5475, expected range: 0.0000 57.7120
BUFR LAND SYNOP RH2M (%) _170DB05 : out of range
Severe: avg_pge=1.0000, expected range: -1.2095 0.7500
BUFR LAND SYNOP RH2M (%) 36026 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=33.5743, expected range: 0.0000 15.4851
BUFR LAND SYNOP RH2M (%) 36736 : out of range
Severe: rms_fgdepar=42.3334, expected range: 0.0000 20.5402
BUFR LAND SYNOP RH2M (%) 28886 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.7457, expected range: 0.0000 15.6904
BUFR LAND SYNOP RH2M (%) 29937 : out of range
Severe: rms_fgdepar=32.8300, expected range: 0.0000 17.8330
BUFR LAND SYNOP RH2M (%) 29808 : out of range
Severe: rms_fgdepar=34.1079, expected range: 0.0000 16.9126
BUFR LAND SYNOP RH2M (%) 34398 : out of range
Severe: rms_fgdepar=45.0550, expected range: 0.0000 21.7184
Severe: avg_pge=0.9745, expected range: -0.0005 0.0077
BUFR LAND SYNOP RH2M (%) 29939 : out of range
Severe: rms_fgdepar=35.2784, expected range: 0.0000 19.5013
BUFR LAND SYNOP RH2M (%) 16459 : out of range
Severe: avg_pge=0.9871, expected range: -0.9435 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=330.0000, expected range: 267.0373 272.2127
Severe: obs_number=272.0000, expected range: 385.1535 397.8465
BUFR LAND SYNOP SURFACE PRESSURE (PA) 44210 : out of range
Severe: rms_fgdepar=525.3023, expected range: 0.0000 353.0873
BUFR LAND SYNOP SURFACE PRESSURE (PA) 85210 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=765.9412, expected range: -1543.6554 1746.8812
Severe: rms_fgdepar=767.0598, expected range: -1247.7454 1622.3599
Severe: avg_pge=0.9171, expected range: -1.5355 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 76683 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=311.2791, expected range: 0.0000 80.9950
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8443, expected range: -0.4214 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48464 : out of range
Severe: rms_fgdepar=463.6536, expected range: 0.0000 148.9383
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48375 : out of range
Severe: rms_fgdepar=363.0363, expected range: 0.0000 161.1541
BUFR LAND SYNOP SURFACE PRESSURE (PA) 35358 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=344.8792, expected range: 0.0000 165.3834
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13489 : out of range
Severe: rms_fgdepar=325.3165, expected range: 0.0000 109.6531
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: rms_fgdepar=168.6365, expected range: 56.7729 130.4521
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=722.6288, expected range: 295.0735 1307.3796
Severely_persistent: rms_fgdepar=722.6288, expected range: 273.2003 1341.9705
AUTOMATIC SHIP SURFACE PRESSURE (PA) 63059 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=322.5097, expected range: 0.0000 133.9221
Severe: avg_pge=0.8500, expected range: -0.2363 0.3267
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OZBY2 : out of range
Severe: rms_fgdepar=576.8528, expected range: 0.0000 556.1582
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ5 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=843.9895, expected range: -897.9249 684.4484
Severe: rms_fgdepar=843.9895, expected range: 0.0000 613.2901
Severe: avg_pge=0.8743, expected range: -1.1891 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6FN5 : out of range
Severe: rms_fgdepar=434.8139, expected range: 0.0000 157.5266
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRSJ8 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-613.2429, expected range: -691.3743 -452.1095
Severe: rms_fgdepar=613.5821, expected range: 456.8405 675.8449
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7KDL : out of range
Severe: rms_fgdepar=593.2457, expected range: 0.0000 145.9995
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WSNU : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=316.6371, expected range: 0.0000 125.4078
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WAPZ : out of range
Severe: rms_fgdepar=335.4783, expected range: 0.4874 118.4263
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100198 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=21.3012, expected range: -5.4487 11.5941
Severely_persistent: rms_fgdepar=21.3436, expected range: 0.0000 12.9511
Severely_persistent: avg_pge=0.9423, expected range: -0.9972 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401572 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8625, expected range: -1.1243 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802594 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8245, expected range: -1.1721 0.7500
All MOORED BUOYS WMO BLOCK 22 : all data missing
Severe: obs_number=0, expected range: 112.31 167.09
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802599 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=464.2922, expected range: 0.0000 118.0464
metar
METAR SURFACE PRESSURE (PA) KMWC : out of range
Severe: rms_fgdepar=382.7697, expected range: 0.0000 189.5767
METAR SURFACE PRESSURE (PA) KTIX : out of range
Severe: rms_fgdepar=381.0679, expected range: 0.0000 119.4999
AUTOMATIC METAR SURFACE PRESSURE (PA) KISM : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-629.7203, expected range: -50.6874 130.7281
Severe: rms_fgdepar=649.0789, expected range: 0.0000 150.7072
Severe: avg_pge=0.8550, expected range: -0.6734 0.7500
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=-782.6644, expected range: -795.0952 -765.8688
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=782.6678, expected range: 766.1334 794.9190
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.3000, expected range: 37.3496 63.6322
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.8006, expected range: 41.8542 60.7974
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.8125, expected range: 40.8795 63.4478
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.1407, expected range: 42.7292 63.9488
BUFR LAND SYNOP SNOW (CM) _MI196EF : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=100.0000, expected range: 100.0000 100.0000
BUFR LAND SYNOP SNOW (CM) _MI196EF : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=100.0000, expected range: 100.0000 100.0000
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51747 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.9519, expected range: -24.0745 20.7799
Severely_persistent: rms_fgdepar=12.9519, expected range: 0.5082 14.2460
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.3425, expected range: -17.6849 -9.1508
Severely_persistent: rms_fgdepar=14.3425, expected range: 9.1508 17.6849
BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.8334, expected range: -17.1900 -3.4179
Severely_persistent: rms_fgdepar=13.1854, expected range: 3.1582 17.6414
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.2920, expected range: -20.4328 -7.0920
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.4471, expected range: 7.1164 20.4822
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.1265, expected range: -18.0614 -5.3352
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.1647, expected range: 5.3324 18.1864
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 94619 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.0152, expected range: -9.1168 5.7386
Severe: rms_fgdepar=14.0390, expected range: 0.0000 8.6514
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62124 : out of range
Severe: rms_fgdepar=10.4749, expected range: 0.0000 2.7115
MANUAL LAND SYNOP 2M TEMPERATURE (K) 94619 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.1287, expected range: -9.1518 5.4385
Severe: rms_fgdepar=14.1405, expected range: 0.0000 9.6219
BUFR LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
Severe: avg_fgdepar=-12.2724, expected range: -13.4267 -7.3139
Severe: rms_fgdepar=12.4542, expected range: 7.1620 13.8608
BUFR LAND SYNOP 2M TEMPERATURE (K) 94619 : out of range
Severe: avg_fgdepar=-14.0858, expected range: -9.1899 5.5304
Severe: rms_fgdepar=14.1074, expected range: 0.0000 9.0497
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=279.0000, expected range: 390.2945 426.0584
rh2m
MANUAL LAND SYNOP RH2M (%) 62325 : out of range
Severe: rms_fgdepar=30.6439, expected range: 5.3330 19.5953