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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-07-29 00:00
| iasi | ||
| METOP-B IASI RADIANCES CHANNEL 1639 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=-0.1188, expected range: -0.0877 -0.0555 |
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| METOP-B IASI RADIANCES CHANNEL 1658 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.0261, expected range: 0.0701 0.1059 |
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| cris | ||
| NOAA20 CRIS RADIANCES CHANNEL 989 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.0454, expected range: 0.0665 0.0857 |
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| NOAA20 CRIS RADIANCES CHANNEL 1005 : out of range
10 times in the last 10 days for at least one item Severely_persistent: avg_biascorr=0.0865, expected range: 0.1105 0.1216 |
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| atms | ||
| All NPP ATMS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 11840.75 14004.97 |
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| ssmis | ||
| DMSP-17 SSMIS RADIANCES CHANNEL 8 : out of range
9 times in the last 10 days for at least one item Severely_persistent: stdev_norm_fgdepar=0.1226, expected range: 0.4890 0.5930 |
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| DMSP-17 SSMIS RADIANCES CHANNEL 9 : out of range
13 times in the last 10 days for at least one item Severely_persistent: stdev_norm_fgdepar=0.0939, expected range: 0.5093 0.7259 |
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| DMSP-17 SSMIS RADIANCES CHANNEL 10 : out of range
12 times in the last 10 days for at least one item Severely_persistent: stdev_norm_fgdepar=0.0617, expected range: 0.5579 0.5786 |
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| DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
14 times in the last 10 days for at least one item Severely_persistent: stdev_norm_fgdepar=0.0794, expected range: 0.5113 0.5210 |
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| DMSP-17 SSMIS RADIANCES CHANNEL 11 : out of range
8 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.0367, expected range: 0.6108 0.6108 |
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| DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
10 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.0829, expected range: 0.7707 0.7707 |
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| DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
13 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.0545, expected range: 0.5874 0.5874 |
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| DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
10 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.0341, expected range: 0.6393 0.6393 |
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| gpsro | ||
| TERRASAR-X GPSRO SETTING HEIGHT 22-24 KM : out of range
Slight: avg_norm_fgdepar=-0.4575, expected range: -0.3052 0.0243 |
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| Atmospheric Motion Vector | ||
| All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 222.37 1895.63 |
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| All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 349.89 1787.75 |
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| Radiosondes | ||
| LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
16 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=6.1240, expected range: 0.7365 9.5386 Severely_persistent: rms_fgdepar=6.1291, expected range: 0.8690 9.4588 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severely_persistent: obs_number=0, expected range: 138.06 178.27 |
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| All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 5.02 505.98 |
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| LAND TEMP Q (G/KG) 31538 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.0824, expected range: 0.0000 0.9504 |
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| LAND TEMP Q (G/KG) 31873 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=4.8208, expected range: 0.0000 2.6140 |
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| LAND TEMP Q (G/KG) 40417 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.4018, expected range: 0.0000 3.0400 |
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| HIGH RESO LAND TEMP Q (G/KG) 59280 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.7087, expected range: 0.0000 2.0924 |
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| HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
3 times in the last 10 days for at least one item Severe: obs_number=380.0000, expected range: 186.4866 196.6245 Severe: obs_number=152.0000, expected range: 88.0032 96.6635 Severe: obs_number=192.0000, expected range: 281.0148 297.4296 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 14.40 284.24 |
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| All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severe: obs_number=0, expected range: 33.01 470.28 |
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| LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
3 times in the last 10 days for at least one item Considerable: rms_fgdepar=2.3250, expected range: 0.4461 1.6985 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Considerable: obs_number=568.0000, expected range: 652.4856 673.0144 |
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| amdar | ||
| WIGOS AMDAR TEMPERATURE (K) EU0133 PRESSURE LAYER 0-300 (HPA) : out of range
11 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8732, expected range: -1.6231 0.7500 |
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| WIGOS AMDAR TEMPERATURE (K) ZLK1T1ZA PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8964, expected range: -1.1907 0.7500 |
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| ADS-C WIND VECTOR DIFF (M/S) WKPIFYBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.4792, expected range: 1.2768 5.9000 |
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| pilot | ||
| LAND PILOT WIND VECTOR DIFF (M/S) 83899 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.0680, expected range: 0.0000 8.5253 |
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| synop | ||
| MANUAL LAND SYNOP RH2M (%) 62124 : out of range
7 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9408, expected range: -1.5300 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 60518 : out of range
7 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8792, expected range: -1.8595 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42961 : out of range
9 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8666, expected range: -1.7261 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 16325 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8188, expected range: 0.6515 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 76160 : out of range
Severe: rms_fgdepar=40.2096, expected range: 0.0000 18.5468 |
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| MANUAL LAND SYNOP RH2M (%) 41560 : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.9726, expected range: -1.3471 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 40821 : out of range
Severe: rms_fgdepar=39.1476, expected range: 0.0000 9.6376 Severe: rms_fgdepar=36.2560, expected range: 0.0000 9.9067 |
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| MANUAL LAND SYNOP RH2M (%) 40664 : out of range
Severe: rms_fgdepar=42.3487, expected range: 0.0000 9.2505 Severe: avg_pge=0.9842, expected range: 0.0020 0.0033 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40821 : out of range
Severe: rms_fgdepar=381.2318, expected range: 0.0000 88.5663 |
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| BUFR LAND SYNOP RH2M (%) 81643 : out of range
Severe: avg_pge=0.8589, expected range: -0.0911 0.1241 |
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| BUFR LAND SYNOP RH2M (%) 10655 : out of range
Severe: rms_fgdepar=36.1667, expected range: 0.0000 16.9880 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 22563 : out of range
Severe: rms_fgdepar=390.8101, expected range: 0.0000 125.2351 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 27316 : out of range
Severe: rms_fgdepar=336.9320, expected range: 0.0000 78.6079 Severe: avg_pge=0.8491, expected range: -0.2142 0.2431 |
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| ship | ||
| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8585 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=624.0380, expected range: 515.4863 870.7904 Severely_persistent: rms_fgdepar=624.0380, expected range: 515.4863 870.7904 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5HN7 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=939.1135, expected range: 109.7870 1119.9942 Severely_persistent: rms_fgdepar=939.1135, expected range: 109.7870 1119.9942 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCF6 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8133, expected range: -0.1188 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V6210 : out of range
Severe: avg_fgdepar=-576.9944, expected range: -173.1993 178.6798 Severe: rms_fgdepar=576.9944, expected range: 0.0000 247.5175 Severe: avg_pge=0.8456, expected range: -1.0387 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7980 : out of range
3 times in the last 10 days for at least one item Severe: avg_fgdepar=704.7448, expected range: -882.9008 1190.8406 Severe: rms_fgdepar=704.7448, expected range: 0.0000 926.0157 Severe: avg_pge=0.8528, expected range: -0.6752 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 6201065 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=328.4701, expected range: 73.8742 183.2012 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9268 : out of range
Severe: avg_fgdepar=585.3580, expected range: -1089.0991 898.8381 Severe: rms_fgdepar=585.3580, expected range: 0.0000 956.5953 Severe: avg_pge=0.8379, expected range: -1.3343 0.7500 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6ZJ4 : out of range
Severe: rms_fgdepar=19.2881, expected range: 0.0000 10.9452 Severe: avg_pge=0.9114, expected range: 0.1368 0.7500 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK99 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=18.5437, expected range: 1.5575 10.0983 Severe: avg_pge=0.9044, expected range: -0.5029 0.7500 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 1401817 : out of range
7 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=701.1507, expected range: -702.1224 915.7766 Severely_persistent: rms_fgdepar=702.8847, expected range: 0.0000 733.1969 Severely_persistent: avg_pge=0.9125, expected range: -0.6538 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4701747 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=605.5951, expected range: -831.8319 1453.0642 Severely_persistent: rms_fgdepar=606.1116, expected range: 0.0000 1318.1357 Severely_persistent: avg_pge=0.9086, expected range: -0.5391 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 1501741 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=-819.0546, expected range: -250.5700 220.3980 Severe: rms_fgdepar=821.6604, expected range: 0.0000 380.5582 Severe: avg_pge=0.9296, expected range: -0.5979 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 6203751 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=535.6078, expected range: -192.8334 263.6174 Severe: rms_fgdepar=538.0828, expected range: -186.7674 277.5558 Severe: avg_pge=0.8896, expected range: -0.8359 0.7500 |
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| metar | ||
| METAR SURFACE PRESSURE (PA) OIFK : out of range
Severe: rms_fgdepar=320.4013, expected range: 0.0000 178.2865 |
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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=-773.0568, expected range: -773.0099 -772.4905 |
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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=773.0568, expected range: 772.4907 773.0098 |
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| BUFR LAND SYNOP SNOW (CM) : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-23.2265, expected range: -178.9742 -111.9823 Severely_persistent: rms_fgdepar=142.5679, expected range: 608.3977 783.9916 |
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| t2m | ||
| BUFR LAND SYNOP 2M TEMPERATURE (K) 78896 : out of range
20 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-15.2905, expected range: -19.6736 -2.4815 Severely_persistent: rms_fgdepar=15.6507, expected range: 3.5326 19.7162 |
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| METAR 2M TEMPERATURE (K) CYKD : out of range
Severe: rms_fgdepar=11.4136, expected range: 0.0000 3.7600 |
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| METAR 2M TEMPERATURE (K) SCGE : out of range
Severe: avg_fgdepar=-19.4673, expected range: -2.1934 3.5953 Severe: rms_fgdepar=19.4673, expected range: 0.0000 4.3394 Severe: avg_est_pge=0.8051, expected range: -0.0722 0.1155 |
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| METAR 2M TEMPERATURE (K) KOUN : out of range
Severe: rms_fgdepar=11.3455, expected range: 0.5352 4.4524 |
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| LAND TEMP 2M TEMPERATURE (K) 72357 : out of range
Severe: rms_fgdepar=11.7378, expected range: 0.0000 4.0870 |
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| LAND TEMP 2M TEMPERATURE (K) 76679 : out of range
Severe: rms_fgdepar=11.1294, expected range: 0.0000 6.2707 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
4 times in the last 10 days for at least one item Slight: obs_number=7735.0000, expected range: 11422.0168 12965.1082 Slight: obs_number=51513.0000, expected range: 109748.2360 164047.0140 |
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| rh2m | ||
| MANUAL LAND SYNOP RH2M (%) 83419 : out of range
Severe: rms_fgdepar=30.4681, expected range: 0.0000 15.4215 |
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| MANUAL LAND SYNOP RH2M (%) 08589 : out of range
Severe: rms_fgdepar=39.8852, expected range: 0.0000 20.8114 |
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| METAR RH2M (%) OIYY : out of range
Severe: rms_fgdepar=30.3375, expected range: 0.0000 11.9689 |
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| LAND TEMP RH2M (%) 17196 : out of range
Severe: rms_fgdepar=34.8031, expected range: 0.0000 18.0531 |
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| BUFR LAND SYNOP RH2M (%) 95660 : out of range
Severe: rms_fgdepar=31.3760, expected range: 0.0000 13.2378 |
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| BUFR LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item Slight: obs_number=5957.0000, expected range: 7413.9446 9809.6804 |
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