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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-02-20 12:00
| amsua | ||
| METOP-A AMSUA RADIANCES (8 channels affected) : out of range
Considerable: obs_number=4000.0000, expected range: 4472.0663 5932.6396 |
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| mhs | ||
| All METOP-A MHS ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 13388.99 18555.71 |
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| ssmis | ||
| All DMSP-17 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 6275.41 18851.49 |
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| All DMSP-18 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 6141.73 18299.30 |
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| gpsro | ||
| COSMIC2-E3 GPSRO SETTING (21 impact heights affected) : out of range
Considerable: obs_number=1099.0000, expected range: 1456.4848 2582.9270 |
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| KOMPSAT-5 GPSRO SETTING HEIGHT 18-20 KM : out of range
Slight: stdev_norm_fgdepar=1.8201, expected range: 1.1192 1.6248 |
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| KOMPSAT-5 GPSRO SETTING HEIGHT 14-16 KM : out of range
Slight: avg_norm_fgdepar=-0.3675, expected range: -0.2333 0.1320 |
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| Atmospheric Motion Vector | ||
| METEOSAT-11 AMV VIS2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (H : out of range
Considerable: avg_fgdepar=1.2993, expected range: 1.4955 1.6638 |
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| GOES-16 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: avg_fgdepar=1.4220, expected range: 1.7583 2.3400 |
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| Radiosondes | ||
| LAND TEMP WIND VECTOR DIFF (M/S) 82332 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.8756, expected range: 0.0000 6.9018 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 29282 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8882, expected range: -0.5943 0.7500 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 29282 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.2464, expected range: 0.0000 11.0956 |
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| LAND TEMP TEMPERATURE (K) 30635 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.8185, expected range: -1.6114 0.7500 |
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| LAND TEMP Q (G/KG) 65344 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.7438, expected range: 0.0000 4.2842 Severe: avg_fgdepar=7.6634, expected range: -0.7622 4.1712 |
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| LAND TEMP Q (G/KG) 83362 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=3.1974, expected range: 0.0000 1.5518 |
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| HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
3 times in the last 10 days for at least one item Severe: obs_number=97.0000, expected range: 185.6429 198.1071 Considerable: obs_number=367.0000, expected range: 453.2894 474.9606 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item Considerable: obs_number=135.0000, expected range: 241.8797 275.8703 Considerable: obs_number=267.0000, expected range: 346.4166 430.6945 |
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| HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: avg_fgdepar=-1.1336, expected range: -0.5269 0.4314 |
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| amdar | ||
| ADS-C TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : missing
5 times in the last 10 days for at least one item Severely_persistent: obs_number=0.0000, expected range: 0.0000 315.8287 |
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| All AMDAR ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 29.89 342.12 |
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| AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 1.2711 556.0352 |
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| WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0948 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=16.9994, expected range: 0.0000 7.1339 |
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| airep | ||
| AIREP WIND VECTOR DIFF (M/S) AAL9726 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.5555, expected range: 0.0000 23.0446 |
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| AIREP WIND VECTOR DIFF (M/S) UAL906 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=20.9905, expected range: 0.0000 15.7778 |
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| prof | ||
| EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10103 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8772, expected range: -0.1488 0.5266 Severe: rms_fgdepar=15.5087, expected range: 0.0000 8.2378 |
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| pilot | ||
| LAND PILOT WIND VECTOR DIFF (M/S) 96147 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8808, expected range: -0.0203 0.7500 |
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| LAND PILOT WIND VECTOR DIFF (M/S) 82332 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.0206, expected range: 0.0000 7.8907 |
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| synop | ||
| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18133 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8224, expected range: -0.5628 0.7500 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18162 : out of range
26 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=756.8285, expected range: 490.7184 861.7077 Severely_persistent: avg_fgdepar=756.4397, expected range: 489.8713 861.4334 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17841 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8135, expected range: 0.7508 0.7500 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18210 : out of range
23 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8862, expected range: -1.1615 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 42776 : out of range
14 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9999, expected range: -1.2955 0.7500 Severely_persistent: rms_fgdepar=51.9096, expected range: 0.0000 110.6491 Severely_persistent: avg_fgdepar=51.9096, expected range: -8.1374 110.6491 |
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| MANUAL LAND SYNOP RH2M (%) 42915 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=1.0000, expected range: -0.2838 0.7500 Severely_persistent: rms_fgdepar=63.0578, expected range: 1.0624 84.3490 Severely_persistent: avg_fgdepar=63.0578, expected range: 1.0624 84.3490 |
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| AUTOMATIC LAND SYNOP RH2M (%) 93498 : out of range
Severe: rms_fgdepar=31.5200, expected range: 0.0000 17.6523 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item Severe: obs_number=196.0000, expected range: 1722.9922 1755.0078 Severe: obs_number=247.0000, expected range: 1773.9899 1805.7879 Considerable: obs_number=53.0000, expected range: 67.1667 92.1667 Considerable: obs_number=1733.0000, expected range: 2991.3485 4933.4015 |
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| MANUAL LAND SYNOP RH2M (%) 65208 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=50.8356, expected range: 0.0000 78.8303 Severe: avg_fgdepar=50.8356, expected range: -112.0135 131.1400 |
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| MANUAL LAND SYNOP RH2M (%) 60765 : out of range
Severe: avg_pge=0.9899, expected range: -0.0718 0.0890 Severe: rms_fgdepar=50.8157, expected range: 0.0000 20.5114 Severe: avg_fgdepar=50.8109, expected range: -3.5720 20.4842 |
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| MANUAL LAND SYNOP RH2M (%) 42674 : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.9855, expected range: -1.2553 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 64454 : out of range
Severe: avg_pge=0.9831, expected range: -0.0050 0.0131 |
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| MANUAL LAND SYNOP RH2M (%) 38933 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=35.0540, expected range: 0.0000 13.0759 |
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| MANUAL LAND SYNOP RH2M (%) 76113 : out of range
Severe: avg_pge=0.9981, expected range: -0.5982 0.7065 Severe: rms_fgdepar=57.6892, expected range: 0.0000 68.1916 Severe: avg_fgdepar=57.6892, expected range: -30.5744 54.7445 |
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| MANUAL LAND SYNOP RH2M (%) 43291 : out of range
4 times in the last 10 days for at least one item Severe: avg_pge=0.8696, expected range: -1.0666 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 42571 : out of range
Severe: rms_fgdepar=34.0966, expected range: 0.0000 10.2994 |
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| MANUAL LAND SYNOP RH2M (%) 42661 : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.9843, expected range: -1.4042 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 62011 : out of range
Severe: avg_pge=0.9420, expected range: -0.8830 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 83270 : out of range
Severe: rms_fgdepar=43.7488, expected range: 0.0000 22.1586 |
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| MANUAL LAND SYNOP RH2M (%) 12540 : out of range
Severe: rms_fgdepar=37.0016, expected range: 0.0000 15.3227 |
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| MANUAL LAND SYNOP RH2M (%) 62120 : out of range
Severe: avg_pge=0.9397, expected range: -0.6663 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item Severe: obs_number=240.0000, expected range: 585.2859 630.4641 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40689 : out of range
Severe: avg_pge=0.9392, expected range: -0.6065 0.7500 Severe: rms_fgdepar=940.1480, expected range: 0.0000 156.3741 Severe: avg_fgdepar=-940.1480, expected range: -43.2378 156.3741 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76256 : out of range
Severe: rms_fgdepar=351.8444, expected range: 0.0000 143.2649 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61085 : out of range
Severe: avg_pge=0.9259, expected range: -0.3162 0.6889 Severe: rms_fgdepar=854.6074, expected range: 16.3854 203.3893 Severe: avg_fgdepar=854.1567, expected range: 5.6647 208.2643 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43335 : out of range
Severe: rms_fgdepar=364.5066, expected range: 0.0000 188.3453 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 98233 : out of range
Severe: rms_fgdepar=321.3619, expected range: 0.0000 136.6989 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65420 : out of range
Severe: rms_fgdepar=706.6132, expected range: 0.0000 95.9532 |
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| BUFR LAND SYNOP RH2M (%) 81732 : out of range
Severe: avg_pge=1.0000, expected range: -0.0067 0.0162 Severe: rms_fgdepar=38.7097, expected range: 0.0000 25.0977 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 86532 : out of range
Severe: avg_pge=0.8479, expected range: -0.9609 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 48802 : out of range
Severe: avg_pge=0.8006, expected range: -0.5446 0.7500 |
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| ship | ||
| AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 44150 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8390, expected range: 0.2630 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HJD9 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8543, expected range: -0.2875 0.7500 Severely_persistent: rms_fgdepar=744.3865, expected range: 0.0000 1140.6317 Severely_persistent: avg_fgdepar=744.3865, expected range: -1416.8240 529.6791 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRTO7 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8318, expected range: -1.2392 0.7500 Severely_persistent: rms_fgdepar=597.5912, expected range: -960.8279 1344.0796 Severely_persistent: avg_fgdepar=597.5912, expected range: -1043.7983 1347.0194 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 4101627 : out of range
13 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9293, expected range: -1.0550 0.7500 Severely_persistent: rms_fgdepar=741.7899, expected range: 0.0000 1128.4435 Severely_persistent: avg_fgdepar=-741.7605, expected range: -1321.4538 1171.9884 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4601840 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8044, expected range: -0.8386 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4401577 : out of range
1 times in the last 10 days for at least one item Severe: avg_pge=0.8605, expected range: -0.0070 0.0078 Severe: rms_fgdepar=535.7163, expected range: 0.0000 61.4340 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4401574 : out of range
3 times in the last 10 days for at least one item Severe: rms_fgdepar=539.5431, expected range: 0.0000 449.5414 |
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| metar | ||
| AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item Considerable: obs_number=129.0000, expected range: 417.9533 644.3996 |
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| snow | ||
| AUTOMATIC LAND SYNOP SNOW (CM) 71029 : out of range
14 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=54.1918, expected range: 52.8918 54.5126 Severely_persistent: avg_fgdepar=-54.1918, expected range: -54.5126 -52.8918 |
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| AUTOMATIC LAND SYNOP SNOW (CM) 71576 : out of range
18 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=52.4892, expected range: 50.3034 54.3479 Severely_persistent: avg_fgdepar=-52.4892, expected range: -54.3479 -50.3034 |
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| AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=70.5683, expected range: 59.4866 76.9032 Severely_persistent: avg_fgdepar=-70.5683, expected range: -76.9032 -59.4866 |
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| MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
28 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=65.1505, expected range: 60.7504 79.1129 Severely_persistent: avg_fgdepar=-65.1505, expected range: -79.1050 -60.7547 |
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| BUFR LAND SYNOP SNOW (CM) 01036 : out of range
26 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=116.8789, expected range: 57.2940 110.2646 Severely_persistent: avg_fgdepar=-116.8782, expected range: -110.1475 -57.3144 |
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| BUFR LAND SYNOP SNOW (CM) 71816 : out of range
16 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=65.1403, expected range: 60.1601 79.4032 Severely_persistent: avg_fgdepar=-65.1403, expected range: -79.3985 -60.1619 |
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| BUFR LAND SYNOP SNOW (CM) 01091 : out of range
38 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=90.3165, expected range: 69.2373 94.3667 Severely_persistent: avg_fgdepar=-90.3151, expected range: -94.3102 -69.2603 |
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| BUFR LAND SYNOP SNOW (CM) 01480 : out of range
16 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=64.0977, expected range: 53.2391 66.6219 Severely_persistent: avg_fgdepar=-64.0977, expected range: -66.6262 -53.2305 |
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| AUTOMATIC LAND SYNOP SNOW (CM) 71742 : out of range
4 times in the last 10 days for at least one item Severe: rms_fgdepar=55.9425, expected range: 19.1526 65.7843 Severe: avg_fgdepar=-55.9425, expected range: -65.7843 -19.1526 |
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| t2m | ||
| BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
32 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=12.4777, expected range: 9.9302 20.8617 Severely_persistent: avg_fgdepar=12.4698, expected range: 9.8918 20.8485 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 02890 : out of range
8 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=14.7025, expected range: 0.0000 18.8767 Severely_persistent: avg_fgdepar=-14.5096, expected range: -19.6525 6.4922 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item Severe: obs_number=257.0000, expected range: 1591.8186 1686.6520 Considerable: obs_number=153.0000, expected range: 350.4897 627.0397 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 36736 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=13.9808, expected range: 0.0000 14.5284 Severe: avg_fgdepar=13.9117, expected range: -5.0644 14.7131 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 25335 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=13.3628, expected range: 0.0000 12.4317 Severe: avg_fgdepar=-13.3517, expected range: -13.7061 8.7257 |
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| METAR 2M TEMPERATURE (K) CYIV : out of range
Severe: rms_fgdepar=11.1042, expected range: 0.2438 5.9960 |
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| LAND TEMP 2M TEMPERATURE (K) 71081 : out of range
Severe: rms_fgdepar=13.5464, expected range: 0.0000 8.0476 Severe: avg_fgdepar=-13.5464, expected range: -8.9642 2.2359 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 36736 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=13.9310, expected range: 0.0000 14.4660 Severe: avg_fgdepar=13.8617, expected range: -5.1144 14.6631 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 25335 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=13.4635, expected range: 0.0000 12.5349 Severe: avg_fgdepar=-13.4530, expected range: -13.8120 8.6958 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 02805 : out of range
4 times in the last 10 days for at least one item Severe: rms_fgdepar=12.1558, expected range: 0.0000 16.6036 |
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| rh2m | ||
| AUTOMATIC LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item Severe: obs_number=256.0000, expected range: 1534.5753 1724.9541 |
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| BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=152.0000, expected range: 180.7148 218.8408 |
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