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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-09 00:00
| iasi | ||
| METOP-B IASI RADIANCES (13 channels affected) : out of range
1 times in the last 10 days for at least one item Severe: avg_biascorr=0.2731, expected range: 0.2147 0.2388 |
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| METOP-C IASI RADIANCES (11 channels affected) : out of range
Severe: avg_biascorr=0.2149, expected range: 0.1483 0.1846 |
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| atms | ||
| NOAA20 ATMS RADIANCES CHANNEL 11 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.4060, expected range: -0.3783 -0.3589 |
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| gpsro | ||
| All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 74.68 713.87 |
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| All KOMPSAT-5 GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 0.00 1338.65 |
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| SPIRE LEMUR 3U GPSRO RISING HEIGHT 40-42 KM : out of range
Slight: stdev_norm_fgdepar=0.8829, expected range: 0.7031 0.8387 |
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| resat | ||
| AURA OMI OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=11.1183, expected range: 9.4964 9.6334 |
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| NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
15 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-3.9952, expected range: -3.3301 -3.2161 |
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| Radiosondes | ||
| HIGH RESO LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA : out of range
9 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9068, expected range: -1.5621 0.7500 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severely_persistent: obs_number=0, expected range: 85.68 169.52 |
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| All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 404.22 |
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| LAND TEMP TEMPERATURE (K) 24947 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=11.5761, expected range: -3.5089 1.8640 Severe: avg_pge=0.9240, expected range: -0.2574 0.4236 |
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| LAND TEMP TEMPERATURE (K) 24947 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=11.5761, expected range: 0.1117 3.5481 |
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| LAND TEMP TEMPERATURE (K) 17220 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.7029, expected range: 0.0000 1.8223 |
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| LAND TEMP TEMPERATURE (K) 30935 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item Severe: avg_fgdepar=-10.8361, expected range: -23.9067 15.7118 Severe: rms_fgdepar=10.8361, expected range: 0.0000 19.1509 Severe: avg_pge=0.9302, expected range: 0.0847 0.7500 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 24343 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=22.2110, expected range: -0.0028 4.4925 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 24343 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=28.2363, expected range: 0.1335 5.0962 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.8518, expected range: 0.3484 8.9939 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 42701 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8319, expected range: -0.5848 0.7500 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 24641 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=18.0360, expected range: 0.0000 5.5460 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 24641 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8689, expected range: -0.4431 0.6334 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 124.73 165.49 |
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| amdar | ||
| WIGOS AMDAR WIND VECTOR DIFF (M/S) EU6629 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.6069, expected range: -2.8095 8.0800 Severe: rms_fgdepar=27.1684, expected range: 0.0000 9.1487 |
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| WIGOS AMDAR WIND VECTOR DIFF (M/S) AU0332 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=16.9096, expected range: 0.0000 5.8377 |
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| airep | ||
| AIREP WIND VECTOR DIFF (M/S) UAL930 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.2526, expected range: 0.0000 7.9419 |
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| AIREP WIND VECTOR DIFF (M/S) UAL82 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3519, expected range: 0.0000 15.9914 |
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| AIREP WIND VECTOR DIFF (M/S) AFR475 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=29.8817, expected range: -29.4676 41.4559 |
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| AIREP WIND VECTOR DIFF (M/S) KLM749 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.6541, expected range: 0.0000 6.7707 |
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| AIREP WIND VECTOR DIFF (M/S) VIR6J PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=26.7381, expected range: 0.3769 6.8065 |
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| prof | ||
| JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item Severe: obs_number=0.0000, expected range: 0.0000 303.0011 Severe: obs_number=0.0000, expected range: 0.0000 303.0011 |
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| synop | ||
| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-601.6820, expected range: -1738.6509 1165.5698 Severely_persistent: rms_fgdepar=645.8897, expected range: 131.0504 1126.3194 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 14443 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=507.3017, expected range: 284.4327 618.2259 Severely_persistent: rms_fgdepar=507.3161, expected range: 286.5526 616.7676 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 86926 : out of range
38 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-591.7992, expected range: -704.8205 -473.0160 Severely_persistent: rms_fgdepar=592.8894, expected range: 475.8807 704.5066 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 08347 : out of range
20 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=749.2789, expected range: -1173.5520 2306.0452 Severely_persistent: rms_fgdepar=749.3316, expected range: 0.0000 2277.7903 Severely_persistent: avg_pge=0.9413, expected range: -1.5304 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
9 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8496, expected range: -1.2758 0.7500 |
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| AUTOMATIC LAND SYNOP RH2M (%) 35391 : out of range
Severe: rms_fgdepar=38.1014, expected range: 0.0000 19.1892 |
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| MANUAL LAND SYNOP RH2M (%) 40794 : out of range
1 times in the last 10 days for at least one item Severe: avg_pge=0.8077, expected range: -1.2748 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76040 : out of range
Severe: rms_fgdepar=364.7724, expected range: 0.0000 172.8630 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78711 : out of range
Severe: avg_fgdepar=500.0556, expected range: -357.7716 307.4140 Severe: rms_fgdepar=500.0556, expected range: 0.0000 159.4624 Severe: avg_pge=0.8912, expected range: -0.9413 0.7500 |
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| BUFR LAND SYNOP RH2M (%) 71224 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=46.6207, expected range: 0.0000 14.5658 Severe: avg_pge=0.9631, expected range: 0.0007 0.0056 |
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| BUFR LAND SYNOP RH2M (%) 72764 : out of range
Severe: rms_fgdepar=33.0717, expected range: 0.0000 6.9576 |
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| BUFR LAND SYNOP RH2M (%) 41936 : out of range
Severe: rms_fgdepar=39.8594, expected range: 0.0000 13.0618 |
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| BUFR LAND SYNOP RH2M (%) 72776 : out of range
Severe: rms_fgdepar=44.9529, expected range: 0.0000 8.5275 |
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| BUFR LAND SYNOP RH2M (%) 33719 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=30.5964, expected range: 0.0000 16.4748 |
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| BUFR LAND SYNOP RH2M (%) 72569 : out of range
Severe: rms_fgdepar=41.9152, expected range: 0.0000 14.4353 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 94981 : out of range
Severe: rms_fgdepar=429.5896, expected range: 0.0000 64.2525 Severe: avg_pge=0.8657, expected range: 0.0000 0.0000 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 30328 : out of range
Severe: rms_fgdepar=573.1029, expected range: 0.0000 280.6413 |
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| ship | ||
| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FMI2 : out of range
14 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8721, expected range: 0.1260 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VDBY : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=792.9011, expected range: -599.4379 1022.0346 Severely_persistent: rms_fgdepar=794.1060, expected range: 0.0000 1211.7080 Severely_persistent: avg_pge=0.8697, expected range: -1.0266 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDC3786 : out of range
Severe: rms_fgdepar=355.7029, expected range: 0.0000 189.8659 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7ZZ6 : out of range
Severe: rms_fgdepar=661.1287, expected range: -571.0511 835.6135 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRFI7 : out of range
3 times in the last 10 days for at least one item Severe: avg_fgdepar=-1073.4191, expected range: -284.5968 164.3777 Severe: rms_fgdepar=1073.4191, expected range: 0.0000 327.5699 Severe: avg_pge=0.9137, expected range: -1.0676 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3ETA8 : out of range
Severe: rms_fgdepar=307.4203, expected range: 0.0000 141.7810 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
4 times in the last 10 days for at least one item Severe: avg_pge=0.8174, expected range: 0.7199 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4101714 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=338.8643, expected range: 0.0000 75.2748 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 3201777 : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8365, expected range: 0.1707 0.7500 |
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| metar | ||
| METAR SURFACE PRESSURE (PA) MHPL : out of range
Severe: avg_fgdepar=510.9253, expected range: -390.9145 308.8389 Severe: rms_fgdepar=517.3989, expected range: 0.0000 309.9952 Severe: avg_pge=0.8031, expected range: -0.4518 0.7500 |
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| METAR SURFACE PRESSURE (PA) SLJO : out of range
Severe: avg_fgdepar=511.7374, expected range: -266.2971 201.0570 Severe: rms_fgdepar=511.7374, expected range: 0.0000 366.9760 |
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| METAR SURFACE PRESSURE (PA) OIBV : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=458.0559, expected range: 0.0000 168.4700 |
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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=-774.0009, expected range: -773.1201 -772.3717 |
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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=774.0009, expected range: 772.3721 773.1199 |
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| BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
20 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=53.1765, expected range: 37.6278 58.9657 |
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| BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
20 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=53.6985, expected range: 38.7312 59.4550 |
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| BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=55.7273, expected range: 39.2371 55.8210 |
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| BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=56.1435, expected range: 40.6174 55.1148 |
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| t2m | ||
| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-13.5913, expected range: -25.4408 12.5709 Severely_persistent: rms_fgdepar=13.6796, expected range: 0.0000 23.0124 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 80010 : out of range
10 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=14.2640, expected range: -9.8307 24.4078 Severely_persistent: rms_fgdepar=14.2640, expected range: 0.0004 20.5901 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-13.3792, expected range: -25.7751 12.4162 Severely_persistent: rms_fgdepar=13.4289, expected range: 0.0000 23.5534 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-17.1349, expected range: -19.8598 -14.6072 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
18 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=17.1742, expected range: 14.6247 19.8654 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-14.8596, expected range: -21.2823 -11.9372 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=14.9113, expected range: 11.9544 21.2789 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52323 : out of range
4 times in the last 10 days for at least one item Severe: avg_fgdepar=12.5242, expected range: -17.2429 22.1873 Severe: rms_fgdepar=12.5242, expected range: 0.0000 14.2117 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 36953 : out of range
Severe: rms_fgdepar=11.6922, expected range: 1.6450 6.5565 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 72569 : out of range
Severe: rms_fgdepar=11.8813, expected range: 0.0000 6.0369 |
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| METAR 2M TEMPERATURE (K) KVCT : out of range
Severe: avg_fgdepar=-18.2451, expected range: -2.3586 3.0550 Severe: rms_fgdepar=18.2451, expected range: 1.4178 3.0214 |
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| LAND TEMP 2M TEMPERATURE (K) 71802 : out of range
Severe: rms_fgdepar=10.7424, expected range: 0.0000 3.0662 |
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| rh2m | ||
| METAR RH2M (%) KGTF : out of range
Severe: rms_fgdepar=37.7938, expected range: 0.0000 16.6275 |
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| BUFR LAND SYNOP RH2M (%) 08224 : out of range
Severe: rms_fgdepar=34.2632, expected range: 0.0000 13.7158 |
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| BUFR LAND SYNOP RH2M (%) 02917 : out of range
Severe: rms_fgdepar=33.5588, expected range: 0.0000 12.7557 |
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| BUFR LAND SYNOP RH2M (%) _MF15DD9 : out of range
Severe: rms_fgdepar=39.3730, expected range: 1.5556 17.3041 |
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