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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-10 00:00
| AMSUA EARS | ||
| NOAA-19 AMSUA RADIANCES CHANNEL 3 : out of range
Severe: stdev_norm_fgdepar=0.0449, expected range: -0.0145 0.0171 |
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| iasi | ||
| METOP-B IASI RADIANCES (13 channels affected) : out of range
2 times in the last 10 days for at least one item Severe: avg_biascorr=0.2782, expected range: 0.2211 0.2388 |
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| All METOP-C IASI ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 22533.54 23231.71 |
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| gpsro | ||
| All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 95.65 833.51 |
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| METOP-B GRAS SETTING HEIGHT 6-8 KM : out of range
Slight: stdev_norm_fgdepar=0.7804, expected range: 0.5397 0.7254 |
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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=12.7757, expected range: 8.5777 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=-4.0385, expected range: -3.3301 -3.1501 |
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| NOAA-19 SBUV OZONE, TOP (19 pressure layers affected) : out of range
Slight: obs_number=611.0000, expected range: 501.9292 582.4458 |
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| Radiosondes | ||
| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severely_persistent: obs_number=0, expected range: 79.05 175.45 |
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| All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 424.84 |
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| LAND TEMP TEMPERATURE (K) 47122 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.8408, expected range: 0.0000 4.5828 |
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| LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=8.7586, expected range: 0.0000 4.9765 Considerable: avg_fgdepar=-3.1044, expected range: -1.2766 1.3479 |
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| LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 29.5683 187.5803 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.6663, expected range: 0.6353 1.1629 Severe: obs_number=0.0000, expected range: 103.8182 167.6818 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) 91948 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=9.8128, expected range: -0.6474 0.5481 Severe: rms_fgdepar=10.1981, expected range: 0.4145 1.2175 Severe: avg_pge=0.8288, expected range: -0.0170 0.0244 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.0665, expected range: 0.0000 1.5689 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
3 times in the last 10 days for at least one item Severe: obs_number=184.0000, expected range: 271.8929 284.3571 |
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| HIGH RESO LAND TEMP Q (G/KG) 76405 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2270, expected range: 0.5530 1.2037 |
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| HIGH RESO LAND TEMP Q (G/KG) 72251 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.7994, expected range: 0.0000 2.6529 |
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| HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item Severe: obs_number=190.0000, expected range: 94.1667 99.1667 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 127.92 162.96 |
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| amdar | ||
| AMDAR TEMPERATURE (K) 00040525 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.3066, expected range: 0.0000 3.2863 Severe: avg_pge=0.8097, expected range: -0.2191 0.5204 |
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| WIGOS AMDAR WIND VECTOR DIFF (M/S) E1OINEZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.9086, expected range: 0.0000 6.6880 |
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| WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA (2 pressure layers affecte : out of range
Severe: avg_fgdepar=21.3824, expected range: -8.0113 20.2316 Severe: rms_fgdepar=21.3824, expected range: 0.0000 21.2874 Severe: avg_pge=0.8704, expected range: -0.9090 0.7500 |
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| ADS-C WIND VECTOR DIFF (M/S) KO2CZDJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.4497, expected range: 0.0000 9.3095 |
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| pilot | ||
| LAND PILOT WIND VECTOR DIFF (M/S) 61291 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.8641, expected range: 0.0000 8.7023 Severe: avg_pge=0.8007, expected range: -0.6644 0.7500 |
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| synop | ||
| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
20 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-581.5507, expected range: -1738.6509 1165.5698 Severely_persistent: rms_fgdepar=632.4591, expected range: 131.0504 1126.3194 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42467 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8111, expected range: -1.1462 0.7500 |
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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=-592.6441, expected range: -714.0653 -459.5480 Severely_persistent: rms_fgdepar=593.6897, expected range: 461.3591 714.6018 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 08347 : out of range
23 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=765.2519, expected range: -1486.5490 2436.4307 Severely_persistent: rms_fgdepar=765.6576, expected range: 0.0000 2405.1068 Severely_persistent: avg_pge=0.9424, expected range: -1.7941 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 71387 : out of range
15 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8806, expected range: 0.6976 0.7500 |
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| AUTOMATIC LAND SYNOP RH2M (%) 68821 : out of range
Severe: rms_fgdepar=38.2160, expected range: 0.0000 21.2406 |
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| AUTOMATIC LAND SYNOP RH2M (%) 68572 : out of range
Severe: avg_fgdepar=51.1354, expected range: -66.1150 76.9456 Severe: rms_fgdepar=51.1354, expected range: 0.0000 51.1869 Severe: avg_pge=0.9860, expected range: -0.0907 0.1190 |
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| AUTOMATIC LAND SYNOP RH2M (%) 68387 : out of range
Severe: rms_fgdepar=47.1721, expected range: 0.0000 33.8873 Severe: avg_pge=0.9974, expected range: -0.0173 0.0285 |
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| AUTOMATIC LAND SYNOP RH2M (%) 34498 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=37.6656, expected range: 0.0000 18.2391 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17880 : out of range
3 times in the last 10 days for at least one item Severe: rms_fgdepar=509.2884, expected range: 0.0000 121.3564 Severe: avg_pge=0.8364, expected range: 0.0000 0.0000 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89564 : out of range
Severe: rms_fgdepar=460.6222, expected range: 0.0000 203.5099 Severe: avg_pge=0.8477, expected range: -1.0290 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86210 : out of range
Severe: avg_pge=0.8778, expected range: -1.2951 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83912 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=409.0595, expected range: 0.0000 401.6349 Severe: avg_pge=0.8640, expected range: -0.7228 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40025 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=518.1018, expected range: 0.0000 94.2456 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 94656 : out of range
Severe: avg_fgdepar=839.0638, expected range: -121.7668 241.9019 Severe: rms_fgdepar=839.0638, expected range: 0.0000 210.3340 Severe: avg_pge=0.9328, expected range: -0.7063 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 94657 : out of range
Severe: avg_fgdepar=-540.5128, expected range: -198.8879 97.8994 Severe: rms_fgdepar=728.6281, expected range: 0.0000 201.7726 |
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| BUFR LAND SYNOP RH2M (%) 60162 : out of range
Severe: rms_fgdepar=33.3102, expected range: 0.0000 17.3821 |
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| BUFR LAND SYNOP RH2M (%) 16766 : out of range
Severe: rms_fgdepar=43.5522, expected range: 0.0000 23.9355 Severe: avg_pge=0.9983, expected range: -0.0167 0.0261 |
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| BUFR LAND SYNOP RH2M (%) 71747 : out of range
Severe: rms_fgdepar=30.0431, expected range: 0.0000 12.0434 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 48921 : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8625, expected range: -1.6504 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 94656 : out of range
Severe: avg_fgdepar=821.2859, expected range: -126.0353 227.5361 Severe: rms_fgdepar=821.2859, expected range: 0.0000 172.8640 Severe: avg_pge=0.9311, expected range: -0.8448 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 42328 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=318.9836, expected range: 0.0000 56.6803 Severe: avg_pge=0.8352, expected range: -0.1719 0.1975 |
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| ship | ||
| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FMI2 : out of range
16 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9110, expected range: 0.5014 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) DGXS2 : out of range
Severe: avg_pge=0.8076, expected range: 0.5636 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3E3566 : out of range
3 times in the last 10 days for at least one item Severe: avg_fgdepar=590.9971, expected range: -932.9807 1161.5648 Severe: rms_fgdepar=590.9971, expected range: 0.0000 675.2773 Severe: avg_pge=0.8216, expected range: -0.8385 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7978 : out of range
Severe: avg_fgdepar=515.0319, expected range: -785.9653 428.4430 Severe: rms_fgdepar=515.0319, expected range: 0.0000 707.7647 Severe: avg_pge=0.8026, expected range: -0.9311 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HRJ9 : out of range
Severe: rms_fgdepar=361.0452, expected range: 0.0000 127.6158 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=920.0710, expected range: 35.0328 1388.1842 Severe: rms_fgdepar=930.6977, expected range: 35.8548 1391.4950 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JLQ : out of range
Severe: avg_fgdepar=1016.0699, expected range: -103.9768 105.7191 Severe: rms_fgdepar=1016.0699, expected range: 0.0000 76.5700 Severe: avg_pge=0.9017, expected range: 0.0000 0.0000 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) WLIU : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8368, expected range: 0.6936 0.7500 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 4601592 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=669.6553, expected range: -1240.6524 1053.7313 Severely_persistent: rms_fgdepar=673.5757, expected range: -892.9101 1281.2125 Severely_persistent: avg_pge=0.9102, expected range: -1.6808 0.7500 |
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| MOORED BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item Severe: obs_number=93.0000, expected range: 160.5056 172.2003 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4401572 : out of range
Severe: rms_fgdepar=350.9160, expected range: 9.1487 117.0197 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 6202635 : out of range
Severe: avg_pge=0.8308, expected range: -1.1573 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4101719 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=396.0868, expected range: 0.0000 80.7235 Severe: avg_pge=0.8463, expected range: -0.1704 0.2133 |
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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=-774.0066, expected range: -773.4753 -772.0850 |
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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=774.0066, expected range: 772.0853 773.4752 |
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| BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=55.4545, expected range: 40.1074 53.9492 |
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| BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
6 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=55.7201, expected range: 42.5072 52.6382 |
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| BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
22 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=50.8000, expected range: 38.4123 59.2351 |
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| BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
22 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=51.7475, expected range: 39.7323 59.5116 |
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| t2m | ||
| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
20 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-14.9138, expected range: -19.2506 -14.9832 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
20 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=14.9486, expected range: 14.9991 19.2599 |
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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=-13.6286, expected range: -21.0780 -12.0200 |
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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=13.6330, expected range: 12.0359 21.0784 |
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| METAR 2M TEMPERATURE (K) KLSE : out of range
Severe: rms_fgdepar=11.9072, expected range: 1.2548 3.6257 |
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| METAR 2M TEMPERATURE (K) FVMV : out of range
Severe: avg_fgdepar=-12.4869, expected range: -4.4713 3.2873 Severe: rms_fgdepar=12.4869, expected range: 0.0000 10.6480 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 89376 : out of range
Severe: avg_fgdepar=12.4423, expected range: -6.9224 8.7957 Severe: rms_fgdepar=12.6709, expected range: 0.0000 6.7569 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI10688 : out of range
Severe: rms_fgdepar=11.4084, expected range: 1.4130 5.7219 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=151.0000, expected range: 351.8414 416.0336 |
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| rh2m | ||
| AUTOMATIC LAND SYNOP RH2M (%) 16738 : out of range
Severe: rms_fgdepar=36.7614, expected range: 0.0000 16.5144 |
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| MANUAL LAND SYNOP RH2M (%) 83780 : out of range
Severe: rms_fgdepar=36.2651, expected range: 0.0000 20.4974 |
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