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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-26 12:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1382, expected range: 0.1615 0.1868
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4074, expected range: -0.3521 -0.3002
iasi
METOP-B IASI RADIANCES CHANNEL 2907 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=510.0000, expected range: 95.7376 294.4944
METOP-B IASI RADIANCES CHANNEL 2958 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=383.0000, expected range: 71.5550 219.4945
METOP-C IASI RADIANCES CHANNEL 2889 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=342.0000, expected range: 53.7108 173.7813
METOP-C IASI RADIANCES CHANNEL 2907 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=511.0000, expected range: 104.8004 275.3543
METOP-C IASI RADIANCES CHANNEL 2944 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=336.0000, expected range: 51.9522 173.4384
METOP-C IASI RADIANCES CHANNEL 2958 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=404.0000, expected range: 80.7345 204.8152
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0051, expected range: 0.0042 0.0047
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1768, expected range: 0.0327 0.0597
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.6236, expected range: -0.7218 11.3309
Severely_persistent: rms_fgdepar=7.9007, expected range: 0.0000 11.2467
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.2841, expected range: -3.1887 13.8945
Severely_persistent: rms_fgdepar=6.2841, expected range: 0.0000 13.8988
LAND TEMP TEMPERATURE (K) 44373 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8741, expected range: -0.4211 0.5063
LAND TEMP Q (G/KG) 70273 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2633, expected range: 0.0000 1.2325
LAND TEMP Q (G/KG) 44373 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.0334, expected range: 0.0000 2.7166
All LAND TEMP ALL LAYERS WMO BLOCK 71 : all data missing
Severe: obs_number=0, expected range: 0.00 340.85
HIGH RESO LAND TEMP Q (G/KG) 72712 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.3294, expected range: 0.0000 0.9423
HIGH RESO LAND TEMP Q (G/KG) 10035 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.7291, expected range: 0.0000 1.4358
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=1.2087, expected range: 0.0000 0.4170
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 54857 (3 pressure layers af : out of range
Severe: rms_fgdepar=16.0338, expected range: 0.0000 7.8598
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=91.0000, expected range: 177.6184 188.1594
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 89.14 107.61
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 89.14 107.61
amdar
TAMDAR WIND VECTOR DIFF (M/S) 00005178 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.0777, expected range: 1.8722 26.9377
Severe: rms_fgdepar=20.2383, expected range: 4.7161 25.0245
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.7901, expected range: -10.7391 2.2130
Severe: rms_fgdepar=6.9933, expected range: 0.0000 10.9595
ADS-C WIND VECTOR DIFF (M/S) R0M2QHZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.3934, expected range: 0.0000 25.6005
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68918 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8851, expected range: -0.8925 0.7500
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9998, expected range: -1.6245 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=784.5103, expected range: 526.2180 1182.0462
Severely_persistent: rms_fgdepar=790.0437, expected range: 529.5384 1180.0447
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42527 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8458, expected range: -0.7250 0.7500
MANUAL LAND SYNOP RH2M (%) 43330 : out of range
Severe: rms_fgdepar=32.9780, expected range: 0.0000 26.4432
Severe: avg_pge=0.8858, expected range: -0.0215 0.0334
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9741, expected range: -1.7333 0.7500
MANUAL LAND SYNOP RH2M (%) 64706 : out of range
Severe: avg_pge=0.8926, expected range: -0.9612 0.7500
MANUAL LAND SYNOP RH2M (%) 36467 : out of range
Severe: rms_fgdepar=48.4893, expected range: 0.0000 12.4259
MANUAL LAND SYNOP RH2M (%) 42768 : out of range
Severe: rms_fgdepar=37.7461, expected range: 0.0000 20.1518
Severe: avg_pge=0.9739, expected range: -0.0127 0.0218
MANUAL LAND SYNOP RH2M (%) 67229 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=57.4935, expected range: 12.3657 65.9107
Severe: rms_fgdepar=57.4935, expected range: 13.2181 65.2579
Severe: avg_pge=0.9997, expected range: -1.2213 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83899 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-523.9617, expected range: -218.2145 229.0181
Severe: rms_fgdepar=714.2709, expected range: 0.0000 209.0437
BUFR LAND SYNOP RH2M (%) 02812 : out of range
Severe: rms_fgdepar=33.2585, expected range: 0.0000 16.9036
BUFR LAND SYNOP RH2M (%) 72363 : out of range
Severe: rms_fgdepar=36.2614, expected range: 0.0000 13.9085
BUFR LAND SYNOP SURFACE PRESSURE (PA) 64040 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=364.1722, expected range: 0.0000 191.1292
Severe: avg_pge=0.8317, expected range: -0.6866 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42970 : out of range
Severe: avg_pge=0.8516, expected range: -1.3795 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36501 : out of range
Severe: rms_fgdepar=728.2112, expected range: 0.0000 132.9704
BUFR LAND SYNOP SURFACE PRESSURE (PA) 67221 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8244, expected range: 0.7182 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48085 : out of range
Severe: avg_fgdepar=-1086.3777, expected range: -201.9176 158.9867
Severe: rms_fgdepar=1086.3777, expected range: 0.0000 165.6428
Severe: avg_pge=0.9448, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24136 : out of range
Severe: rms_fgdepar=446.0950, expected range: 0.2577 94.6476
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24557 : out of range
Severe: rms_fgdepar=528.5718, expected range: 0.0000 187.9517
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42639 : out of range
Severe: avg_fgdepar=531.8253, expected range: -135.6248 332.4438
Severe: rms_fgdepar=531.8253, expected range: 0.0000 332.4438
Severe: avg_pge=0.8911, expected range: -1.1203 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8640, expected range: -0.4070 0.7500
Severely_persistent: avg_pge=0.8640, expected range: 0.0601 0.7500
SHIP WIND VECTOR DIFF (M/S) VRKX7 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8640, expected range: -0.4070 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severely_persistent: obs_number=0, expected range: 114.82 192.72
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=848.2009, expected range: 93.8696 1447.7208
Severely_persistent: rms_fgdepar=856.2754, expected range: 92.4988 1449.5940
Severely_persistent: avg_pge=0.8738, expected range: 0.6517 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) BAWPAEG : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=611.0542, expected range: -74.9383 1198.8171
Severely_persistent: rms_fgdepar=611.7969, expected range: 0.0000 1201.3389
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severely_persistent: obs_number=0, expected range: 225.92 244.24
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3062 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-567.6302, expected range: -1382.0821 929.3774
Severe: rms_fgdepar=567.6302, expected range: 0.0000 1327.6246
Severe: avg_pge=0.8394, expected range: -1.5958 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OBA : out of range
Severe: rms_fgdepar=318.1487, expected range: 0.0000 116.1961
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=23.2601, expected range: -1.1377 24.6441
Severely_persistent: rms_fgdepar=23.2992, expected range: 0.0000 24.6420
Severely_persistent: avg_pge=0.9389, expected range: 0.3341 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501671 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-532.2710, expected range: -1040.8198 1140.8705
Severely_persistent: rms_fgdepar=534.4122, expected range: 0.0000 937.1600
Severely_persistent: avg_pge=0.9065, expected range: -0.9921 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5102722 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=537.7244, expected range: 0.0000 68.9635
Severe: avg_pge=0.8136, expected range: -0.0615 0.0709
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101513 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=465.3544, expected range: 0.0000 290.2413
Severe: avg_pge=0.8635, expected range: -0.8075 0.7500
metar
METAR SURFACE PRESSURE (PA) FOOB : out of range
Severe: rms_fgdepar=467.4711, expected range: 0.0000 220.9241
snow
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=50.0949, expected range: 45.3409 66.7151
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=-772.8968, expected range: -775.2918 -770.7936
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=772.8969, expected range: 770.7936 775.2920
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.7391, expected range: 39.5019 69.7006
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
29 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.9073, expected range: 40.6449 69.3589
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=58.0476, expected range: 54.7412 65.0773
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=58.3614, expected range: 55.6806 65.1186
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.7553, expected range: -10.7305 -0.6269
Severe: rms_fgdepar=12.8136, expected range: 1.0642 10.6043
METAR 2M TEMPERATURE (K) KCAK : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.2644, expected range: 0.9294 4.5461
METAR 2M TEMPERATURE (K) SKYP : out of range
Severe: rms_fgdepar=11.1846, expected range: 0.0000 4.2080
METAR 2M TEMPERATURE (K) SEST : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.0606, expected range: 0.6950 4.0867
LAND TEMP 2M TEMPERATURE (K) 71924 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=19.5831, expected range: -3.6138 2.5669
Severe: rms_fgdepar=19.5831, expected range: 0.0000 2.8712
BUFR LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.7989, expected range: -10.7627 -0.6766
Severe: rms_fgdepar=12.8570, expected range: 1.1094 10.6385
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=61.0000, expected range: 76.2591 77.6356