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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-23 00:00
| amsua | ||
| METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
18 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.1111, expected range: 0.1615 0.1869 |
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| METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
16 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.4017, expected range: -0.3521 -0.3035 |
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| ssmis | ||
| DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
13 times in the last 10 days for at least one item Severely_persistent: stdev_norm_fgdepar=0.0052, expected range: 0.0043 0.0047 |
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| Geostationary CSR | ||
| HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.1661, expected range: -0.0466 0.0597 |
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| Radiosondes | ||
| LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=6.4144, expected range: 1.0199 7.9178 Severely_persistent: rms_fgdepar=6.4900, expected range: 1.3611 7.8612 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) 51656 PRESSURE LAYER 900-1200 (HPA : out of range
10 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-10.3543, expected range: -14.9969 2.2534 Severely_persistent: rms_fgdepar=10.3543, expected range: 0.0000 14.5539 Severely_persistent: avg_pge=0.9287, expected range: -0.2742 0.7500 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severely_persistent: obs_number=0, expected range: 91.31 183.84 |
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| LAND TEMP TEMPERATURE (K) 36003 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=10.3917, expected range: 0.0105 3.1342 |
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| HIGH RESO LAND TEMP Q (G/KG) 10771 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.0865, expected range: 0.0013 0.9366 |
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| HIGH RESO LAND TEMP Q (G/KG) 08302 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.3499, expected range: 0.0000 4.3161 |
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| HIGH RESO LAND TEMP Q (G/KG) 51656 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.7468, expected range: -1.5100 5.8538 Severe: rms_fgdepar=6.7468, expected range: 0.0000 5.8231 Severe: avg_pge=0.8207, expected range: -0.1384 0.1714 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=190.0000, expected range: 273.2900 286.9322 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
1 times in the last 10 days for at least one item Severe: obs_number=272.0000, expected range: 354.5887 372.9113 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Severe: rms_fgdepar=9.2819, expected range: 1.8444 3.8456 |
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| All HIGH RESO LAND TEMP ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 91.31 183.84 |
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| All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 520.22 |
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| HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=1.0698, expected range: 0.3165 0.8116 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item Considerable: obs_number=260.0000, expected range: 112.2608 148.4892 |
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| LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: rms_fgdepar=2.5094, expected range: 0.8388 2.3768 |
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| amdar | ||
| All TAMDAR TEMPERATURE (K) ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 0.00 252.75 |
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| pilot | ||
| LAND PILOT WIND VECTOR DIFF (M/S) 42056 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=33.9133, expected range: -7.2500 13.1706 Severe: rms_fgdepar=33.9133, expected range: 0.0000 13.1706 |
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| synop | ||
| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60471 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8365, expected range: 0.3339 0.7500 |
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| BUFR LAND SYNOP RH2M (%) 64040 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-50.7113, expected range: -74.7686 -19.6163 Severely_persistent: rms_fgdepar=50.7113, expected range: 19.6163 74.7686 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=785.5531, expected range: 660.8937 1067.8659 Severely_persistent: rms_fgdepar=786.2663, expected range: 662.5104 1070.6650 |
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| MANUAL LAND SYNOP RH2M (%) 40080 : out of range
Severe: rms_fgdepar=47.5128, expected range: 0.0000 27.3972 Severe: avg_pge=0.9999, expected range: -0.0099 0.0194 |
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| MANUAL LAND SYNOP RH2M (%) 62054 : out of range
1 times in the last 10 days for at least one item Severe: avg_pge=0.8020, expected range: -0.0714 0.0924 |
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| MANUAL LAND SYNOP RH2M (%) 16597 : out of range
Severe: avg_pge=0.9470, expected range: -0.9410 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40893 : out of range
Severe: rms_fgdepar=429.5955, expected range: 16.6249 155.4946 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 44275 : out of range
Severe: rms_fgdepar=548.8118, expected range: 0.0000 43.7011 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41785 : out of range
4 times in the last 10 days for at least one item Severe: avg_pge=0.8630, expected range: -1.0216 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41756 : out of range
Severe: rms_fgdepar=484.1241, expected range: 0.0000 252.3086 Severe: avg_pge=0.8854, expected range: -0.7598 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38696 : out of range
Severe: rms_fgdepar=454.3523, expected range: 0.0000 182.7442 |
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| BUFR LAND SYNOP RH2M (%) 71550 : out of range
Severe: rms_fgdepar=35.6645, expected range: 0.0000 19.9496 |
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| BUFR LAND SYNOP RH2M (%) 72421 : out of range
Severe: avg_pge=0.9740, expected range: -0.4308 0.5015 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 64040 : out of range
Severe: rms_fgdepar=371.6226, expected range: 0.0000 227.8622 Severe: avg_pge=0.8401, expected range: -0.6116 0.7286 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 67315 : out of range
Severe: rms_fgdepar=428.4663, expected range: 0.0000 101.6607 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 35925 : out of range
Severe: rms_fgdepar=599.2792, expected range: 0.0000 142.2196 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 96147 : out of range
Severe: rms_fgdepar=574.6881, expected range: 0.0000 423.1921 |
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| BUFR LAND SYNOP Z (M) 56172 : out of range
1 times in the last 10 days for at least one item Severe: avg_pge=0.9950, expected range: -0.8414 0.7500 |
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| ship | ||
| SHIP WIND VECTOR DIFF (M/S) : out of range
9 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9478, expected range: -0.0767 0.7500 |
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| SHIP WIND VECTOR DIFF (M/S) VRKX7 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=28.6091, expected range: -30.2797 60.3288 Severely_persistent: rms_fgdepar=28.6091, expected range: 0.0000 60.6802 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9152, expected range: 0.5018 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=919.8454, expected range: 132.8946 1204.6596 Severely_persistent: rms_fgdepar=919.8454, expected range: 132.8946 1204.6596 Severely_persistent: avg_pge=0.8914, expected range: 0.6147 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=810.1400, expected range: 486.4974 640.2073 Severely_persistent: rms_fgdepar=810.1400, expected range: 486.4974 640.2073 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FSA9 : out of range
42 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8213, expected range: 0.7149 0.7500 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3ETM6 : out of range
Severe: avg_pge=0.9156, expected range: 0.5047 0.7500 |
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| All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severe: obs_number=0, expected range: 120.67 181.83 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK74 : out of range
Severe: rms_fgdepar=444.6408, expected range: 0.0000 242.1021 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCBD4 : out of range
Severe: rms_fgdepar=556.0051, expected range: 0.0000 987.2078 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) KAFK : out of range
Severe: avg_fgdepar=509.6400, expected range: -334.9483 345.1200 Severe: rms_fgdepar=525.0090, expected range: 0.0000 309.2448 |
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| All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severe: obs_number=0, expected range: 97.04 465.39 |
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| buoy | ||
| MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
13 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9308, expected range: 0.3174 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 3301611 : out of range
14 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=545.2071, expected range: -925.5178 975.9378 Severely_persistent: rms_fgdepar=545.7709, expected range: -779.1882 1078.8689 Severely_persistent: avg_pge=0.8911, expected range: -1.3599 0.7500 |
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| metar | ||
| AUTOMATIC METAR SURFACE PRESSURE (PA) EPBC : out of range
Severe: avg_fgdepar=-988.1700, expected range: -149.9186 193.1011 Severe: rms_fgdepar=988.1700, expected range: 0.0000 194.8798 Severe: avg_pge=0.9049, expected range: -0.1096 0.1233 |
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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=-772.8884, expected range: -773.0245 -772.5668 |
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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=772.8885, expected range: 772.5670 773.0245 |
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| t2m | ||
| MANUAL LAND SYNOP 2M TEMPERATURE (K) 60220 : out of range
9 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-13.4049, expected range: -21.6687 17.1085 Severely_persistent: rms_fgdepar=13.4049, expected range: -14.0214 21.2236 |
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| METAR 2M TEMPERATURE (K) VECX : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=12.5503, expected range: 5.0234 16.7463 Severely_persistent: rms_fgdepar=12.7330, expected range: 4.9478 17.0773 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89266 : out of range
Severe: rms_fgdepar=11.7627, expected range: 0.0000 5.6005 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52378 : out of range
Severe: avg_fgdepar=12.9674, expected range: 0.9900 13.0819 Severe: rms_fgdepar=12.9674, expected range: 0.9900 13.0819 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 32215 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=12.9454, expected range: -4.8811 4.0901 Severe: rms_fgdepar=12.9996, expected range: 0.0000 4.3557 |
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| METAR 2M TEMPERATURE (K) KSKF : out of range
Severe: rms_fgdepar=12.7053, expected range: 0.0000 5.8854 |
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| METAR 2M TEMPERATURE (K) RODN : out of range
Severe: avg_fgdepar=-18.6809, expected range: -3.2929 4.0587 Severe: rms_fgdepar=18.6809, expected range: 0.0000 4.5104 |
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| LAND TEMP 2M TEMPERATURE (K) 32215 : out of range
Severe: avg_fgdepar=13.0661, expected range: -5.6392 4.3813 Severe: rms_fgdepar=13.0661, expected range: 0.0000 5.5106 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 32215 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=12.8724, expected range: -4.8911 4.0023 Severe: rms_fgdepar=12.9265, expected range: 0.0000 4.3821 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 76258 : out of range
Severe: rms_fgdepar=11.2748, expected range: 0.0000 5.6673 |
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| rh2m | ||
| AUTOMATIC LAND SYNOP RH2M (%) 72492 : out of range
Severe: rms_fgdepar=38.9094, expected range: 0.0000 21.0646 |
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| AUTOMATIC LAND SYNOP RH2M (%) 72268 : out of range
Severe: rms_fgdepar=36.3155, expected range: 0.0000 16.7137 |
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| MANUAL LAND SYNOP RH2M (%) 60535 : out of range
Severe: rms_fgdepar=32.6311, expected range: 0.0000 18.4567 |
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| METAR RH2M (%) GMFB : out of range
Severe: rms_fgdepar=33.1216, expected range: 0.0000 15.4418 |
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| BUFR LAND SYNOP RH2M (%) 60200 : out of range
Severe: rms_fgdepar=34.8740, expected range: 0.0000 17.1387 |
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| BUFR LAND SYNOP RH2M (%) 41941 : out of range
Severe: rms_fgdepar=35.1036, expected range: 0.0000 17.1379 |
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