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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-05-12 12:00
| amsua | ||
| NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.0881, expected range: 0.1542 0.2076 |
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| NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.5760, expected range: -0.6571 -0.6229 |
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| NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.5708, expected range: -0.4709 -0.3853 |
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| METOP-B AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.2065, expected range: 0.3147 0.3244 |
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| METOP-B AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.2421, expected range: -0.1314 -0.0875 |
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| METOP-C AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.2773, expected range: -0.1608 -0.1508 |
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| METOP-C AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.7232, expected range: -0.6370 -0.5890 |
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| mwhs2 | ||
| FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 3 : out of range
4 times in the last 10 days for at least one item Considerable: avg_biascorr=-1.1252, expected range: -1.0605 -0.9690 |
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| atms | ||
| NPP ATMS RADIANCES CHANNEL 19 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.1227, expected range: -0.2010 -0.1786 |
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| NPP ATMS RADIANCES CHANNEL 22 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.7252, expected range: 0.6196 0.6678 |
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| NPP ATMS RADIANCES CHANNEL 14 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.0304, expected range: -0.0370 -0.0164 |
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| NPP ATMS RADIANCES CHANNEL 11 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.2995, expected range: -0.2392 -0.1766 |
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| NPP ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.4811, expected range: -0.4307 -0.3719 |
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| NPP ATMS RADIANCES CHANNEL 13 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.4125, expected range: -0.3684 -0.3408 |
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| NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
11 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.3953, expected range: -0.4577 -0.4233 |
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| NOAA20 ATMS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.2463, expected range: -0.2919 -0.2913 |
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| NOAA20 ATMS RADIANCES CHANNEL 22 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.5262, expected range: 0.4248 0.4639 |
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| Atmospheric Motion Vector | ||
| HIMAWARI-8 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Severe: obs_number=212.0000, expected range: 120.6496 150.3479 |
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| AQUA MODIS CLOUDY WV WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HP : out of range
1 times in the last 10 days for at least one item Considerable: obs_number=522.0000, expected range: 269.8378 392.8539 |
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| resat | ||
| NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 250-251 (HPA) : out of range
1 times in the last 10 days for at least one item Slight: avg_fgdepar=-0.0397, expected range: -0.2643 -0.0991 |
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| Radiosondes | ||
| LAND TEMP TEMPERATURE (K) 40811 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.1463, expected range: 0.0000 3.4807 |
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| LAND TEMP TEMPERATURE (K) 26781 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.0254, expected range: 0.0000 2.3283 |
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| LAND TEMP Q (G/KG) 48855 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.0500, expected range: 0.0802 1.4228 |
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| HIGH RESO LAND TEMP WIND 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: 63.7837 155.8163 Considerable: obs_number=2245.0000, expected range: 1785.9149 2065.8351 |
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| HIGH RESO LAND TEMP Q (G/KG) 73110 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=2.0867, expected range: 0.1271 0.5357 |
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| HIGH RESO LAND TEMP Q (G/KG) 07510 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2286, expected range: 0.0515 1.2163 |
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| HIGH RESO LAND TEMP Q (G/KG) 72645 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=2.6183, expected range: 0.0000 1.4484 |
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| HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item Severe: obs_number=382.0000, expected range: 280.6667 290.6667 Considerable: obs_number=245.0000, expected range: 449.1147 767.6353 |
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| HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=1.2655, expected range: 0.3864 0.8862 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 71.57 110.87 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severe: obs_number=0, expected range: 199.99 838.51 |
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| HIGH RESO SEA TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.4552, expected range: 0.3726 1.3200 Severe: rms_fgdepar=3.9758, expected range: 0.3252 1.3064 |
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| HIGH RESO SEA TEMP Q (G/KG) XKQLWQB PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8567, expected range: -0.2107 0.2751 |
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| HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=338.0000, expected range: 132.6375 202.1125 |
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| amdar | ||
| WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9082, expected range: -0.7311 0.7500 |
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| ADS-C WIND VECTOR DIFF (M/S) 3N5BFFBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=33.0849, expected range: 0.0000 9.9808 |
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| ADS-C WIND VECTOR DIFF (M/S) X4TBZDRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.0694, expected range: 0.0000 8.9123 |
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| ADS-C WIND VECTOR DIFF (M/S) 1B2J5RZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.7360, expected range: 0.0000 10.5377 |
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| airep | ||
| AIREP WIND VECTOR DIFF (M/S) QFA93 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.6369, expected range: 0.0000 8.2461 |
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| AIREP WIND VECTOR DIFF (M/S) UAL839 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=34.3458, expected range: 0.0042 6.8054 Severe: rms_fgdepar=43.1020, expected range: 0.0000 7.8925 |
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| synop | ||
| MANUAL LAND SYNOP RH2M (%) 42792 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8687, expected range: -0.6709 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 67221 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8222, expected range: 0.6753 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 42834 : out of range
Severe: rms_fgdepar=36.0576, expected range: 0.0000 12.2486 Severe: avg_pge=0.9999, expected range: -0.0003 0.0062 |
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| MANUAL LAND SYNOP RH2M (%) 67229 : out of range
4 times in the last 10 days for at least one item Severe: avg_pge=0.8891, expected range: -1.0312 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78706 : out of range
Severe: rms_fgdepar=345.6203, expected range: 0.0000 231.3179 Severe: avg_pge=0.8512, expected range: -0.8264 0.7500 |
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| BUFR LAND SYNOP RH2M (%) 71244 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=36.9950, expected range: 0.0000 19.2611 |
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| BUFR LAND SYNOP RH2M (%) 72564 : out of range
Severe: rms_fgdepar=49.8845, expected range: 0.0000 41.4859 Severe: avg_pge=0.9813, expected range: -0.0100 0.0182 |
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| BUFR LAND SYNOP RH2M (%) 72776 : out of range
Severe: rms_fgdepar=40.2012, expected range: 0.0000 14.5439 |
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| BUFR LAND SYNOP RH2M (%) 61627 : out of range
Severe: avg_pge=0.9623, expected range: -0.8529 0.7500 |
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| BUFR LAND SYNOP RH2M (%) 08068 : out of range
Severe: rms_fgdepar=35.0714, expected range: 0.0000 18.7018 |
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| BUFR LAND SYNOP RH2M (%) 33049 : out of range
Severe: rms_fgdepar=37.5556, expected range: 0.0000 20.8788 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 48930 : out of range
Severe: avg_fgdepar=-521.6391, expected range: -580.4630 209.6374 Severe: rms_fgdepar=603.1972, expected range: 0.0000 591.9756 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 12805 : out of range
Severe: rms_fgdepar=415.9515, expected range: 0.0000 82.8185 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 41965 : out of range
Severe: avg_pge=0.8212, expected range: -1.0905 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 24967 : out of range
Severe: rms_fgdepar=578.1250, expected range: 0.0000 330.5439 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 61698 : out of range
Severe: rms_fgdepar=579.7267, expected range: 0.0000 418.3064 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 30439 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=-501.8075, expected range: -278.7564 201.0940 Severe: rms_fgdepar=666.8918, expected range: 0.0000 254.9953 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 22749 : out of range
Severe: rms_fgdepar=312.7393, expected range: 0.0000 155.8477 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 41859 : out of range
Severe: rms_fgdepar=452.1657, expected range: 0.0000 104.9879 Severe: avg_pge=0.8878, expected range: -0.6229 0.7450 |
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| BUFR LAND SYNOP Z (M) : out of range
1 times in the last 10 days for at least one item Slight: rms_fgdepar=151.3045, expected range: 23.6983 145.0924 |
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| ship | ||
| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3E2426 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8924, expected range: -0.2751 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 45024 : out of range
22 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8782, expected range: 0.6465 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXZO2 : out of range
Severe: avg_fgdepar=521.2391, expected range: -426.4110 513.9211 Severe: rms_fgdepar=522.7123, expected range: 0.0000 336.2802 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAQJ7 : out of range
Severe: avg_pge=0.8151, expected range: 0.6346 0.7500 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 5102722 : out of range
14 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-502.0379, expected range: -850.4710 1057.7520 Severely_persistent: rms_fgdepar=528.9195, expected range: -828.2301 1087.5799 Severely_persistent: avg_pge=0.8866, expected range: -1.5349 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 6301572 : out of range
11 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8175, expected range: -1.5558 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 5401536 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8515, expected range: -1.5259 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 6102797 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8497, expected range: -0.9640 0.7500 |
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| metar | ||
| METAR SURFACE PRESSURE (PA) OMAL : out of range
Severe: rms_fgdepar=305.8381, expected range: 0.0000 153.5403 |
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| AUTOMATIC METAR SURFACE PRESSURE (PA) KCDD : out of range
Severe: rms_fgdepar=322.9932, expected range: 0.0000 183.0228 |
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| AUTOMATIC METAR SURFACE PRESSURE (PA) KGPZ : out of range
Severe: rms_fgdepar=313.5867, expected range: 0.0000 126.8207 |
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| snow | ||
| AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-53.0770, expected range: -75.0359 -62.2568 Severely_persistent: rms_fgdepar=53.0770, expected range: 62.2568 75.0359 |
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| BUFR LAND SYNOP SNOW (CM) 01361 : out of range
32 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=59.7259, expected range: 43.3465 58.3197 Severely_persistent: rms_fgdepar=59.7264, expected range: 43.3477 58.3248 |
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| BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-738.0643, expected range: -737.3472 -712.1187 |
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| BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=738.0643, expected range: 712.1207 737.3471 |
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| BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-89.3180, expected range: -94.3573 -89.8094 Severely_persistent: rms_fgdepar=89.3180, expected range: 89.8095 94.3573 |
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| BUFR LAND SYNOP SNOW (CM) : out of range
5 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=18.7255, expected range: 239.8521 364.2156 |
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| MANUAL LAND SYNOP SNOW (CM) 71580 : out of range
Severe: avg_fgdepar=55.0576, expected range: -1.8957 1.6363 Severe: rms_fgdepar=77.7971, expected range: 0.0000 1.8102 |
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| t2m | ||
| BUFR LAND SYNOP 2M TEMPERATURE (K) 78896 : out of range
28 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-15.9854, expected range: -18.7905 -7.1481 Severely_persistent: rms_fgdepar=16.0512, expected range: 7.3824 19.0360 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 40627 : out of range
Severe: rms_fgdepar=10.0257, expected range: -2.5071 4.4571 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 42079 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=10.8011, expected range: 1.0247 6.0438 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item Severe: obs_number=109.0000, expected range: 133.9766 135.8234 |
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| METAR 2M TEMPERATURE (K) OIGK : out of range
Severe: rms_fgdepar=12.1608, expected range: 0.6902 11.1233 |
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| METAR 2M TEMPERATURE (K) MMCS : out of range
Severe: rms_fgdepar=11.2322, expected range: 0.4436 4.4212 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item Severe: obs_number=9908.0000, expected range: 12453.6746 12929.9724 Severe: obs_number=7668.0000, expected range: 10215.0705 10737.9883 Severe: obs_number=8970.0000, expected range: 11575.8858 12022.8201 Considerable: obs_number=57.0000, expected range: 77.5429 117.0453 |
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| rh2m | ||
| BUFR LAND SYNOP RH2M (%) 08487 : out of range
Severe: rms_fgdepar=33.5558, expected range: 0.0000 17.9919 |
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| MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item Considerable: obs_number=107.0000, expected range: 128.8438 134.5562 |
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| BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=5623.0000, expected range: 6554.8383 7408.8087 Considerable: obs_number=7812.0000, expected range: 8755.2958 9539.7631 Considerable: obs_number=6904.0000, expected range: 7890.5264 8682.2971 |
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