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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-02-27 00:00
| amsua | ||
| NOAA-19 AMSUA RADIANCES CHANNEL 6 : out of range
Severe: stdev_fgdepar=0.1890, expected range: 0.1348 0.1538 |
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| NOAA-15 AMSUA RADIANCES CHANNEL 7 : out of range
Considerable: obs_number=2087.0000, expected range: 267.0786 1656.4214 |
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| NOAA-19 AMSUA RADIANCES CHANNEL 9 : out of range
Considerable: stdev_fgdepar=0.1935, expected range: 0.1590 0.1817 |
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| iasi | ||
| METOP-C IASI RADIANCES CHANNEL 3452 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.1199, expected range: 0.1493 0.1686 |
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| METOP-C IASI RADIANCES CHANNEL 3252 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.1385, expected range: 0.1816 0.2151 |
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| METOP-A IASI RADIANCES CHANNEL 3452 : out of range
4 times in the last 10 days for at least one item Severe: avg_biascorr=0.1018, expected range: 0.1188 0.1395 |
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| METOP-B IASI RADIANCES (62 channels affected) : out of range
Considerable: obs_number=2371.0000, expected range: 1932.9928 2253.6322 |
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| cris | ||
| NPP CRIS RADIANCES (52 channels affected) : out of range
Severe: obs_number=17819.0000, expected range: 22032.2706 22594.7294 |
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| NOAA20 CRIS RADIANCES (45 channels affected) : out of range
Considerable: obs_number=5707.0000, expected range: 6234.6543 7191.7207 |
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| atms | ||
| NPP ATMS RADIANCES (15 channels affected) : out of range
Considerable: obs_number=18712.0000, expected range: 20680.3275 24517.1725 |
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| NOAA20 ATMS RADIANCES (7 channels affected) : out of range
Considerable: obs_number=9463.0000, expected range: 10434.5828 11889.2922 |
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| Atmospheric Motion Vector | ||
| METEOSAT-11 AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Considerable: obs_number=1711.0000, expected range: 2148.2396 2707.5104 |
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| NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Considerable: obs_number=1269.0000, expected range: 1924.7535 3082.9965 |
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| resat | ||
| All NOAA-19 SBUV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 145.81 733.33 |
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| Radiosondes | ||
| LAND TEMP TEMPERATURE (K) 60715 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8395, expected range: -0.1031 0.1641 Severe: rms_fgdepar=11.2638, expected range: 0.0000 1.9730 Severe: avg_fgdepar=11.2566, expected range: -1.1817 1.2017 |
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| HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=211.0000, expected range: 290.6425 307.8019 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 56080 PRESSURE LAYER 300-60 : out of range
Severe: rms_fgdepar=25.0645, expected range: 0.0000 8.4559 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) 56046 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8748, expected range: -0.7425 0.7500 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) 72645 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.4217, expected range: 0.0000 2.4988 |
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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 Considerable: obs_number=57.0000, expected range: 77.3217 87.9283 |
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| HIGH RESO SEA TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: obs_number=349.0000, expected range: 62.8980 134.1020 |
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| amdar | ||
| ADS-C WIND VECTOR DIFF (M/S) E4HTTKZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.3757, expected range: 1.1063 7.2763 |
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| ADS-C WIND VECTOR DIFF (M/S) OQGDSDZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=33.8864, expected range: 0.0000 9.9040 |
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| ADS-C WIND VECTOR DIFF (M/S) 3FOEDQRA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=22.8055, expected range: 0.0000 51.5197 |
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| ADS-C WIND VECTOR DIFF (M/S) 44C0KKRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.9567, expected range: 0.0000 19.5370 Severe: avg_fgdepar=21.6122, expected range: -2.0516 13.9196 |
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| ADS-C WIND VECTOR DIFF (M/S) 12KEILJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.1857, expected range: 0.0000 14.4972 |
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| ADS-C WIND VECTOR DIFF (M/S) BU01OHJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3290, expected range: 0.0000 11.3468 |
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| ADS-C WIND VECTOR DIFF (M/S) UEYEQGJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.2510, expected range: 0.0000 8.9766 |
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| airep | ||
| AIREP WIND VECTOR DIFF (M/S) ACA874 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.8965, expected range: 0.3998 7.2616 |
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| AIREP WIND VECTOR DIFF (M/S) UAL14 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=25.5999, expected range: 0.0000 11.3822 |
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| AIREP WIND VECTOR DIFF (M/S) ETH552 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3541, expected range: 0.0000 16.1059 |
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| AIREP WIND VECTOR DIFF (M/S) THY181 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1902, expected range: 0.0032 7.4400 |
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| AIREP WIND VECTOR DIFF (M/S) AAL70 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.7347, expected range: 0.0000 25.5522 |
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| AIREP WIND VECTOR DIFF (M/S) UAL950 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=24.1379, expected range: 0.0000 27.5925 |
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| AIREP WIND VECTOR DIFF (M/S) VIR540 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.7945, expected range: 0.0000 9.9268 |
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| pilot | ||
| LAND PILOT WIND VECTOR DIFF (M/S) 41624 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.1009, expected range: 0.6429 5.8388 |
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| synop | ||
| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18138 : out of range
9 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8462, expected range: 0.6348 0.7500 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18162 : out of range
38 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=764.9413, expected range: 551.8858 932.1475 Severely_persistent: avg_fgdepar=764.3640, expected range: 551.0750 931.6043 |
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| MANUAL LAND SYNOP RH2M (%) 76775 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=1.0000, expected range: -1.7588 0.7500 Severely_persistent: rms_fgdepar=57.4699, expected range: 0.0000 97.5706 Severely_persistent: avg_fgdepar=57.4699, expected range: -36.1725 97.5706 |
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| MANUAL LAND SYNOP RH2M (%) 38545 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9730, expected range: -1.6851 0.7500 Severely_persistent: rms_fgdepar=59.6417, expected range: 0.0000 98.6031 Severely_persistent: avg_fgdepar=59.6417, expected range: -56.1424 105.4506 |
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| MANUAL LAND SYNOP RH2M (%) 43291 : out of range
7 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9437, expected range: -0.1656 0.1940 |
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| AUTOMATIC LAND SYNOP RH2M (%) 68819 : out of range
Severe: avg_pge=0.8862, expected range: -0.0159 0.0294 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83718 : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.8098, expected range: 0.5024 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42450 : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.9313, expected range: 0.0718 0.7500 Severe: rms_fgdepar=834.6015, expected range: 20.6814 218.4120 Severe: avg_fgdepar=834.6015, expected range: -218.4120 -20.6814 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87540 : out of range
Severe: rms_fgdepar=388.2883, expected range: 0.0000 155.9196 |
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| MANUAL LAND SYNOP RH2M (%) 36859 : out of range
Severe: rms_fgdepar=51.4078, expected range: 0.0000 92.8661 |
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| MANUAL LAND SYNOP RH2M (%) 40708 : out of range
4 times in the last 10 days for at least one item Severe: avg_pge=0.9728, expected range: -0.0439 0.0608 Severe: rms_fgdepar=62.9058, expected range: 0.0000 44.6655 Severe: avg_fgdepar=62.9058, expected range: -17.2514 48.6503 |
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| MANUAL LAND SYNOP RH2M (%) 38207 : out of range
Severe: rms_fgdepar=53.9933, expected range: 0.0000 59.9743 Severe: avg_fgdepar=53.9933, expected range: -38.6857 62.1360 |
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| MANUAL LAND SYNOP RH2M (%) 38343 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=53.6791, expected range: 0.0000 56.9857 Severe: avg_fgdepar=53.0901, expected range: -54.5052 72.1087 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 27648 : out of range
Severe: rms_fgdepar=496.5880, expected range: 0.0000 152.2686 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 33297 : out of range
Severe: rms_fgdepar=536.6866, expected range: 0.0000 225.4913 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 61296 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=468.6798, expected range: 0.0000 185.9730 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 71376 : out of range
Severe: avg_pge=0.8278, expected range: -0.2698 0.4006 Severe: rms_fgdepar=368.0420, expected range: 0.0000 128.5475 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 48385 : out of range
Severe: rms_fgdepar=323.7642, expected range: 15.4641 153.2659 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.8127, expected range: -0.8368 0.7500 |
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| BUFR LAND SYNOP RH2M (%) 53231 : out of range
Severe: rms_fgdepar=31.7918, expected range: 0.0000 10.2549 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item Considerable: obs_number=56.0000, expected range: 60.7873 65.9627 |
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| ship | ||
| AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 46147 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8466, expected range: -0.7088 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) WSAF : out of range
15 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9167, expected range: -0.8859 0.7500 Severely_persistent: rms_fgdepar=1101.2645, expected range: 0.0000 2774.1160 Severely_persistent: avg_fgdepar=-1101.2025, expected range: -4070.0859 3236.5070 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) KFMV : out of range
Severe: rms_fgdepar=589.4096, expected range: 0.0000 252.6792 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9558 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=547.2237, expected range: 99.3223 948.7229 Severe: avg_fgdepar=547.2237, expected range: 101.4489 944.8165 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9408 : out of range
Severe: avg_pge=0.8299, expected range: -1.1696 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRFT7 : out of range
Severe: avg_pge=0.8478, expected range: -0.7941 0.7500 Severe: rms_fgdepar=629.6801, expected range: 0.0000 310.0541 Severe: avg_fgdepar=-629.6801, expected range: -380.7297 293.8822 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 6202688 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8125, expected range: -1.6332 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 1501747 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8588, expected range: -1.3909 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 5401689 : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8534, expected range: -0.2674 0.3391 Severe: rms_fgdepar=487.0490, expected range: 0.0000 148.4549 |
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| metar | ||
| METAR SURFACE PRESSURE (PA) OPSW : out of range
Severe: rms_fgdepar=425.7031, expected range: 0.0000 239.5570 |
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| METAR SURFACE PRESSURE (PA) SKPS : out of range
Severe: avg_pge=0.8160, expected range: -0.0181 0.0207 Severe: rms_fgdepar=658.6339, expected range: 0.0000 110.7248 Severe: avg_fgdepar=-658.6339, expected range: -129.8118 78.8821 |
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| METAR SURFACE PRESSURE (PA) DNJO : out of range
Severe: rms_fgdepar=576.2240, expected range: 0.0000 234.9222 |
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| METAR SURFACE PRESSURE (PA) DGAA : out of range
Severe: rms_fgdepar=370.3638, expected range: 0.0000 89.1446 |
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| snow | ||
| MANUAL LAND SYNOP SNOW (CM) 20107 : out of range
18 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=94.8660, expected range: 83.6313 102.6073 Severely_persistent: avg_fgdepar=94.8660, expected range: 83.6313 102.6073 |
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| MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=60.9135, expected range: 57.6054 70.0971 Severely_persistent: avg_fgdepar=60.9135, expected range: 57.6054 70.0971 |
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| MANUAL LAND SYNOP SNOW (CM) 28862 : out of range
6 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=74.8971, expected range: -52.5210 85.8121 Severely_persistent: avg_fgdepar=74.8971, expected range: -61.3359 88.3687 |
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| ROCOB TEMP SNOW (CM) 63309115 : out of range
12 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=58.4794, expected range: 44.1326 58.4760 Severely_persistent: avg_fgdepar=-58.4794, expected range: -58.4760 -44.1326 |
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| BUFR LAND SYNOP SNOW (CM) 20107 : out of range
18 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=92.8885, expected range: 81.1611 100.5069 Severely_persistent: avg_fgdepar=92.8885, expected range: 81.1611 100.5069 |
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| BUFR LAND SYNOP SNOW (CM) 01036 : out of range
36 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=111.3934, expected range: 56.1907 152.8659 Severely_persistent: avg_fgdepar=-111.3934, expected range: -152.8967 -56.0931 |
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| BUFR LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=61.1990, expected range: 57.8250 70.4289 Severely_persistent: avg_fgdepar=61.1990, expected range: 57.8250 70.4289 |
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| BUFR LAND SYNOP SNOW (CM) 28862 : out of range
6 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=74.8971, expected range: -52.5210 85.8121 Severely_persistent: avg_fgdepar=74.8971, expected range: -61.3359 88.3687 |
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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=97.5162, expected range: 60.7818 125.0821 Severely_persistent: avg_fgdepar=-97.5133, expected range: -125.0640 -60.7901 |
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| BUFR LAND SYNOP SNOW (CM) 01480 : out of range
26 times in the last 10 days for at least one item Severely_persistent: rms_fgdepar=58.5714, expected range: 58.0650 69.6681 Severely_persistent: avg_fgdepar=-58.5714, expected range: -69.6643 -58.0667 |
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| t2m | ||
| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52955 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=12.8647, expected range: 0.0000 15.2013 Severe: avg_fgdepar=12.8647, expected range: -14.0080 19.3466 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71855 : out of range
Severe: rms_fgdepar=12.6747, expected range: 0.0000 7.4341 Severe: avg_fgdepar=12.6038, expected range: -9.4274 7.4504 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71835 : out of range
Severe: rms_fgdepar=10.7454, expected range: 0.4223 3.3686 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 48810 : out of range
4 times in the last 10 days for at least one item Severe: rms_fgdepar=15.9375, expected range: 4.4615 15.0915 Severe: avg_fgdepar=-15.9375, expected range: -15.0919 -4.4598 |
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| METAR 2M TEMPERATURE (K) LICJ : out of range
Severe: rms_fgdepar=12.2889, expected range: 0.7737 3.5829 |
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| METAR 2M TEMPERATURE (K) EGHH : out of range
Severe: rms_fgdepar=18.8665, expected range: 0.0000 2.0911 Severe: avg_fgdepar=18.8665, expected range: -1.0693 1.0483 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 71855 : out of range
Severe: rms_fgdepar=12.6679, expected range: 0.0000 7.4809 Severe: avg_fgdepar=12.5972, expected range: -9.4756 7.4094 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 48810 : out of range
4 times in the last 10 days for at least one item Severe: rms_fgdepar=15.9875, expected range: 4.5115 15.1415 Severe: avg_fgdepar=-15.9875, expected range: -15.1419 -4.5098 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=1630.0000, expected range: 1784.1558 1908.8442 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item Considerable: obs_number=80.0000, expected range: 101.2510 118.9843 Considerable: obs_number=230.0000, expected range: 288.0554 372.1946 |
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| rh2m | ||
| MANUAL LAND SYNOP RH2M (%) 42077 : out of range
Severe: rms_fgdepar=37.6168, expected range: 0.0000 19.6362 |
 | |
| BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=81.0000, expected range: 97.7804 127.2196 |
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