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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-16 12:00
| iasi | ||
| METOP-B IASI RADIANCES CHANNEL 131 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.3401, expected range: 0.3647 0.3952 |
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| METOP-C IASI RADIANCES CHANNEL 16 : out of range
1 times in the last 10 days for at least one item Severe: avg_biascorr=0.0161, expected range: -0.0055 0.0046 |
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| METOP-C IASI RADIANCES CHANNEL 109 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=-0.0221, expected range: -0.0059 0.0142 Severe: stdev_fgdepar=0.3545, expected range: 0.3808 0.4127 |
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| METOP-C IASI RADIANCES CHANNEL 61 : out of range
1 times in the last 10 days for at least one item Severe: stdev_fgdepar=0.3871, expected range: 0.4276 0.4425 |
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| METOP-C IASI RADIANCES CHANNEL 89 : out of range
1 times in the last 10 days for at least one item Severe: stdev_fgdepar=0.3292, expected range: 0.3712 0.4039 |
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| METOP-C IASI RADIANCES CHANNEL 101 : out of range
Severe: stdev_fgdepar=0.3248, expected range: 0.3531 0.3889 |
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| METOP-C IASI RADIANCES CHANNEL 104 : out of range
Severe: stdev_fgdepar=0.3455, expected range: 0.3801 0.3949 |
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| METOP-C IASI RADIANCES CHANNEL 116 : out of range
2 times in the last 10 days for at least one item Considerable: avg_fgdepar=-0.0214, expected range: -0.0068 0.0127 |
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| METOP-C IASI RADIANCES CHANNEL 3093 : out of range
Considerable: avg_biascorr=0.0685, expected range: 0.0819 0.1011 |
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| METOP-C IASI RADIANCES CHANNEL 3244 : out of range
Considerable: avg_biascorr=0.0263, expected range: 0.0348 0.0488 |
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| METOP-C IASI RADIANCES CHANNEL 3312 : out of range
1 times in the last 10 days for at least one item Considerable: avg_biascorr=-0.1252, expected range: -0.1185 -0.1051 |
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| METOP-C IASI RADIANCES CHANNEL 38 : out of range
2 times in the last 10 days for at least one item Slight: avg_fgdepar=-0.0187, expected range: -0.0081 0.0139 |
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| METOP-C IASI RADIANCES CHANNEL 49 : out of range
2 times in the last 10 days for at least one item Slight: avg_fgdepar=-0.0166, expected range: -0.0070 0.0129 |
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| METOP-C IASI RADIANCES CHANNEL 161 : out of range
2 times in the last 10 days for at least one item Slight: avg_fgdepar=-0.0190, expected range: -0.0081 0.0146 |
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| METOP-C IASI RADIANCES CHANNEL 187 : out of range
1 times in the last 10 days for at least one item Slight: avg_fgdepar=-0.0082, expected range: -0.0012 0.0151 |
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| METOP-C IASI RADIANCES CHANNEL 193 : out of range
Slight: avg_fgdepar=-0.0072, expected range: -0.0015 0.0190 |
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| METOP-C IASI RADIANCES CHANNEL 222 : out of range
1 times in the last 10 days for at least one item Slight: avg_fgdepar=-0.0055, expected range: 0.0015 0.0196 |
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| METOP-C IASI RADIANCES CHANNEL 306 : out of range
1 times in the last 10 days for at least one item Slight: avg_fgdepar=-0.0118, expected range: -0.0044 0.0206 |
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| airs | ||
| AQUA AIRS RADIANCES CHANNEL 128 : out of range
3 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.0335, expected range: -0.1434 -0.1007 Severe: avg_biascorr=0.0514, expected range: 0.0691 0.0919 |
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| AQUA AIRS RADIANCES CHANNEL 138 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.0264, expected range: -0.1629 -0.1068 |
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| AQUA AIRS RADIANCES CHANNEL 93 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=-0.0880, expected range: -0.0662 -0.0505 |
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| AQUA AIRS RADIANCES CHANNEL 99 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=0.0333, expected range: 0.0522 0.0599 |
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| AQUA AIRS RADIANCES CHANNEL 104 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=0.0419, expected range: 0.0632 0.0830 |
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| AQUA AIRS RADIANCES CHANNEL 111 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=-0.0594, expected range: -0.0406 -0.0255 |
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| AQUA AIRS RADIANCES CHANNEL 116 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=0.0180, expected range: 0.0552 0.0686 |
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| AQUA AIRS RADIANCES CHANNEL 117 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=0.0195, expected range: 0.0319 0.0390 |
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| AQUA AIRS RADIANCES CHANNEL 123 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=-0.0978, expected range: -0.0765 -0.0582 |
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| AQUA AIRS RADIANCES CHANNEL 129 : out of range
3 times in the last 10 days for at least one item Severe: avg_biascorr=-0.1025, expected range: -0.0800 -0.0541 |
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| ssmis | ||
| DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=4.9286, expected range: 3.4839 4.2196 |
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| resat | ||
| NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
19 times in the last 10 days for at least one item Severely_persistent: stdev_fgdepar=0.0088, expected range: 0.0065 0.0068 Severely_persistent: avg_fgdepar=-0.0234, expected range: -0.0349 -0.0324 |
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| METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
11 times in the last 10 days for at least one item Severely_persistent: stdev_fgdepar=4.4940, expected range: 5.0442 5.2880 |
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| NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
8 times in the last 10 days for at least one item Slight: stdev_fgdepar=3.4628, expected range: 2.7661 3.3217 |
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| Radiosondes | ||
| LAND TEMP Q (G/KG) 41217 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=6.1091, expected range: 0.0000 6.3589 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 37259 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=18.6489, expected range: 0.0066 6.3832 Severe: avg_pge=0.8102, expected range: -0.3575 0.7500 |
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| HIGH RESO LAND TEMP Q (G/KG) 56651 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.4217, expected range: 0.0000 1.0390 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 50953 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=21.7170, expected range: 0.7089 3.7187 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
Severe: obs_number=140.0000, expected range: 7.4805 29.5195 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) 61998 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=8.1860, expected range: 0.0000 3.7903 Severe: avg_pge=0.8903, expected range: -0.0671 0.0910 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 71.58 113.56 |
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| amdar | ||
| TAMDAR WIND VECTOR DIFF (M/S) 00005154 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=20.9150, expected range: 8.2567 25.3564 Severe: rms_fgdepar=20.9540, expected range: 9.2237 24.9783 |
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| TAMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
3 times in the last 10 days for at least one item Severe: obs_number=0.0000, expected range: 0.0000 252.4019 |
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| WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=-7.8568, expected range: -7.8024 -0.8727 Severe: rms_fgdepar=7.8957, expected range: 1.4348 7.7442 |
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| WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-7.7119, expected range: -10.0969 5.5839 Severe: rms_fgdepar=7.7119, expected range: 0.0000 7.7173 Severe: avg_pge=0.8064, expected range: -0.7388 0.7500 |
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| ADS-C WIND VECTOR DIFF (M/S) CKHSYBBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.4809, expected range: 0.0000 8.2538 |
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| ADS-C WIND VECTOR DIFF (M/S) VQHJNZJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.0916, expected range: 0.0000 10.8453 |
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| ADS-C WIND VECTOR DIFF (M/S) E3FL3ERA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.5095, expected range: 0.0000 12.3893 |
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| ADS-C WIND VECTOR DIFF (M/S) EU5TYFRA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=20.8895, expected range: 0.9537 6.0724 |
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| airep | ||
| AIREP WIND VECTOR DIFF (M/S) THY67C PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.4261, expected range: 0.0000 19.9414 |
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| prof | ||
| EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: obs_number=138.0000, expected range: 113.4444 116.7778 |
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| synop | ||
| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17880 : out of range
13 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8345, expected range: -1.5681 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 60012 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8118, expected range: 0.6492 0.7500 |
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| AUTOMATIC LAND SYNOP RH2M (%) 89011 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=53.7268, expected range: -30.6296 63.4860 Severe: rms_fgdepar=53.7798, expected range: 0.0000 62.3642 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68711 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=465.1718, expected range: 0.0000 243.3957 Severe: avg_pge=0.9048, expected range: -0.8524 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 62465 : out of range
Severe: rms_fgdepar=30.7944, expected range: 0.0000 15.0298 |
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| MANUAL LAND SYNOP RH2M (%) 61096 : out of range
Severe: rms_fgdepar=37.9090, expected range: 0.0000 16.1419 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40007 : out of range
Severe: avg_fgdepar=661.2267, expected range: -541.8161 559.4686 Severe: rms_fgdepar=661.2267, expected range: 0.0000 408.0705 Severe: avg_pge=0.9160, expected range: -1.2794 0.7500 |
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| BUFR LAND SYNOP RH2M (%) 72476 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=30.7947, expected range: 0.0000 12.9176 |
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| BUFR LAND SYNOP RH2M (%) 13389 : out of range
Severe: rms_fgdepar=41.2501, expected range: 2.6678 21.7009 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 21711 : out of range
Severe: rms_fgdepar=540.2038, expected range: 0.0000 105.0593 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 25956 : out of range
Severe: avg_fgdepar=603.6647, expected range: -330.6770 352.9860 Severe: rms_fgdepar=604.3810, expected range: 0.0000 414.5260 Severe: avg_pge=0.8950, expected range: -0.9606 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
3 times in the last 10 days for at least one item Severe: rms_fgdepar=519.7083, expected range: 384.6083 545.2938 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 41998 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=528.8146, expected range: -364.0774 238.0654 Severe: rms_fgdepar=528.8146, expected range: 0.0000 318.5269 Severe: avg_pge=0.8987, expected range: -1.1330 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 25469 : out of range
Severe: rms_fgdepar=549.7357, expected range: 0.0000 81.9508 |
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| ship | ||
| BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYGR2 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-564.1476, expected range: -822.7600 -445.9265 Severely_persistent: rms_fgdepar=564.1476, expected range: 447.5059 821.5333 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRG03 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=884.3303, expected range: 505.6773 1321.2291 Severely_persistent: rms_fgdepar=884.3303, expected range: 505.6773 1321.2291 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLJ4 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=1284.2188, expected range: 323.8353 2024.8979 Severely_persistent: rms_fgdepar=1284.2188, expected range: 340.1876 2015.0461 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) WTED : out of range
7 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-829.3222, expected range: -407.7952 300.3919 Severely_persistent: rms_fgdepar=829.9538, expected range: -291.1660 423.0560 Severely_persistent: avg_pge=0.8916, expected range: -0.7351 0.7500 |
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| AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 62132 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=15.7579, expected range: 0.0000 10.0763 Severe: avg_pge=0.8919, expected range: -0.4439 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6RN3 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=314.4530, expected range: 0.0000 171.9208 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7QT7 : out of range
Severe: avg_fgdepar=639.3492, expected range: -460.1235 487.8377 Severe: rms_fgdepar=648.3306, expected range: 0.0000 472.9912 Severe: avg_pge=0.8393, expected range: -0.4103 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HRJ9 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=363.0098, expected range: 0.0000 161.2583 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7DQ4 : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.9002, expected range: -0.8391 0.7500 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 6501670 : out of range
4 times in the last 10 days for at least one item Severe: avg_fgdepar=-623.4092, expected range: -614.4167 647.2767 Severe: rms_fgdepar=623.4092, expected range: -514.8182 731.5796 Severe: avg_pge=0.9160, expected range: -1.1876 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 2101882 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=580.0273, expected range: -84.3692 34.2411 Severe: rms_fgdepar=583.0603, expected range: 0.0000 178.6045 Severe: avg_pge=0.8053, expected range: -0.2914 0.4414 |
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| 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=-777.4731, expected range: -774.6185 -771.8580 |
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| 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=777.4735, expected range: 771.8581 774.6185 |
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| BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
10 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=50.8182, expected range: 41.8084 55.0845 |
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| BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
10 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=51.0481, expected range: 42.5722 54.6077 |
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| BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
31 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=51.0714, expected range: 44.8919 57.5783 |
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| BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
31 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=52.0693, expected range: 45.6086 58.0286 |
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| t2m | ||
| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-12.1820, expected range: -15.6341 -7.5757 Severely_persistent: rms_fgdepar=12.1820, expected range: 8.0533 15.8075 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-12.3353, expected range: -16.3226 -6.8300 Severely_persistent: rms_fgdepar=12.3465, expected range: 6.8176 16.9520 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
36 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-17.7923, expected range: -21.0178 -11.4140 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
36 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=17.7948, expected range: 11.4441 21.0111 |
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