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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-11-10 00:00
| AMSUA Pacific RARS | ||
| All NOAA-18 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 359.87 1681.12 |
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| All NOAA-19 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 114.61 1466.89 |
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| iasi | ||
| METOP-C IASI RADIANCES CHANNEL 5399 : out of range
Considerable: avg_biascorr=0.1215, expected range: 0.0975 0.1127 |
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| airs | ||
| AQUA AIRS RADIANCES (25 channels affected) : out of range
Slight: obs_number=8957.0000, expected range: 9489.8187 10943.3063 |
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| mhs | ||
| METOP-C MHS ALLSKY RADIANCES CHANNEL 3 : out of range
Severe: avg_biascorr=0.3208, expected range: 0.4228 0.5391 |
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| METOP-C MHS ALLSKY RADIANCES CHANNEL 4 : out of range
Severe: avg_biascorr=-0.3480, expected range: -0.1979 -0.1134 |
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| gmi | ||
| GPM GMI ALSKY RADIANCES CHANNEL 4 : out of range
Slight: stdev_norm_fgdepar=0.9257, expected range: 0.7963 0.8977 |
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| mwhs2 | ||
| FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 3 : out of range
Severe: avg_biascorr=-1.7985, expected range: -1.5957 -1.4110 |
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| FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 4 : out of range
Severe: stdev_norm_fgdepar=0.8917, expected range: 0.7211 0.8185 |
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| ssmis | ||
| All DMSP-17 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 7712.30 15930.23 |
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| All DMSP-18 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 6091.86 16331.28 |
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| Atmospheric Motion Vector | ||
| All HIMAWARI-8 AMV CLOUDY WV3 ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 181.54 892.92 |
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| All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 548.72 1925.00 |
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| Radiosondes | ||
| LAND TEMP TEMPERATURE (K) 24688 PRESSURE LAYER 900-1200 (HPA) : out of range
23 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8593, expected range: -1.3082 0.7500 |
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| HIGH RESO LAND TEMP TEMPERATURE (K) 30557 PRESSURE LAYER 900-1200 (HPA : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8737, expected range: -0.7656 0.7500 |
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| LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8822, expected range: -1.1378 0.7500 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 31873 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.2140, expected range: 0.0000 5.9233 |
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| HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 72562 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=16.5662, expected range: 0.0000 5.9047 |
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| amdar | ||
| WIGOS AMDAR TEMPERATURE (K) CNSSQK PRESSURE LAYER 300-600 (HPA) : out of range
9 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8383, expected range: -0.1107 0.7500 |
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| AMDAR WIND VECTOR DIFF (M/S) TAM8065 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8119, expected range: -0.4288 0.6608 |
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| WIGOS AMDAR TEMPERATURE (K) CNNKUO PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8699, expected range: -0.1983 0.7500 |
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| WIGOS AMDAR TEMPERATURE (K) CNSNTS PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8284, expected range: 0.4420 0.7500 |
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| airep | ||
| AIREP WIND VECTOR DIFF (M/S) BAW22E PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2917, expected range: 0.1104 7.6346 |
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| AIREP WIND VECTOR DIFF (M/S) THT8 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.5391, expected range: 0.4855 5.9793 |
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| prof | ||
| EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10440 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=15.1041, expected range: 0.0000 12.7849 Severe: avg_pge=0.8566, expected range: -0.4765 0.7500 |
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| pilot | ||
| LAND PILOT WIND VECTOR DIFF (M/S) 48877 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8402, expected range: -0.0152 0.7500 |
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| synop | ||
| BUFR LAND SYNOP SURFACE PRESSURE (PA) 81797 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=599.8815, expected range: 509.1229 703.9654 Severely_persistent: rms_fgdepar=600.1296, expected range: 510.0278 703.9472 |
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| MANUAL LAND SYNOP RH2M (%) 40768 : out of range
Severe: rms_fgdepar=33.6503, expected range: 0.0000 13.2729 |
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| MANUAL LAND SYNOP RH2M (%) 95813 : out of range
3 times in the last 10 days for at least one item Severe: avg_pge=0.8196, expected range: -1.6077 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65462 : out of range
Severe: avg_pge=0.8429, expected range: -0.7678 0.7500 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87436 : out of range
Severe: rms_fgdepar=402.5036, expected range: 0.0000 205.2887 |
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| BUFR LAND SYNOP RH2M (%) 71171 : out of range
Severe: avg_pge=0.9072, expected range: -0.0218 0.0322 |
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| BUFR LAND SYNOP RH2M (%) 94498 : out of range
Severe: avg_pge=0.9598, expected range: -0.8507 0.7500 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 33187 : out of range
Severe: rms_fgdepar=350.8861, expected range: 0.0000 102.9867 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 33562 : out of range
Severe: rms_fgdepar=518.7207, expected range: 0.0000 2039.6893 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 34514 : out of range
Severe: avg_fgdepar=-921.7419, expected range: -205.0316 216.8574 Severe: rms_fgdepar=921.7419, expected range: 0.0000 151.8962 Severe: avg_pge=0.9451, expected range: -0.1370 0.1664 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 43227 : out of range
Severe: avg_fgdepar=675.4576, expected range: -9.9775 146.6205 Severe: rms_fgdepar=675.4576, expected range: 0.0000 146.6205 Severe: avg_pge=0.9062, expected range: -0.6777 0.7500 |
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| ship | ||
| BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRWW5 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=687.3448, expected range: 99.5403 865.9565 Severely_persistent: rms_fgdepar=695.5091, expected range: 48.6812 943.4518 Severely_persistent: avg_pge=0.8461, expected range: 0.3761 0.7500 |
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| AUTOMATIC SHIP SURFACE PRESSURE (PA) SDIA : out of range
Severe: avg_pge=0.8193, expected range: -1.2525 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) WYQ4356 : out of range
Severe: avg_fgdepar=887.7404, expected range: -331.1970 297.3085 Severe: rms_fgdepar=1001.0455, expected range: 0.0000 191.9422 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V5223 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=23.3253, expected range: -0.4760 8.4826 Severe: rms_fgdepar=23.3253, expected range: 0.1876 8.1276 Severe: avg_pge=0.9219, expected range: -0.4263 0.7500 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) D5VC2 : out of range
Severe: avg_fgdepar=23.1465, expected range: -8.6325 33.4441 Severe: rms_fgdepar=23.1465, expected range: 0.0000 33.4441 Severe: avg_pge=0.9266, expected range: -0.1000 0.7500 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 1301603 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=326.2918, expected range: 0.0000 136.8394 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 1301608 : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=458.2561, expected range: 0.0000 133.8362 Severe: avg_pge=0.8508, expected range: -0.1758 0.2311 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 5401769 : out of range
Severe: avg_pge=0.8419, expected range: -0.7859 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 6203863 : out of range
3 times in the last 10 days for at least one item Severe: rms_fgdepar=359.3189, expected range: 0.0000 183.7944 |
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| metar | ||
| AUTOMATIC METAR SURFACE PRESSURE (PA) KGGF : out of range
Severe: rms_fgdepar=311.2804, expected range: 0.0000 171.0037 |
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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=-788.4888, expected range: -801.9415 -755.2196 Severely_persistent: rms_fgdepar=788.4908, expected range: 755.4122 801.8261 |
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| BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-54.3963, expected range: -54.9607 -24.2680 Severely_persistent: rms_fgdepar=54.4548, expected range: 24.3066 55.0285 |
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| MANUAL LAND SYNOP SNOW (CM) 36090 : out of range
Severe: rms_fgdepar=15.0659, expected range: 1.1065 8.5862 |
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| MANUAL LAND SYNOP SNOW (CM) 36104 : out of range
Severe: rms_fgdepar=16.1594, expected range: 0.0526 3.8362 |
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| t2m | ||
| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71653 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=12.0790, expected range: -11.1142 23.6081 Severely_persistent: rms_fgdepar=12.2124, expected range: 0.0000 21.5266 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 71653 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=12.4618, expected range: -10.7393 23.2031 Severely_persistent: rms_fgdepar=12.5902, expected range: 0.0000 21.3489 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D581 : out of range
12 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-15.7390, expected range: -21.8890 -9.7353 Severely_persistent: rms_fgdepar=15.7390, expected range: 9.7273 21.9576 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 56257 : out of range
Severe: avg_fgdepar=12.3147, expected range: 3.1423 12.0502 Severe: rms_fgdepar=12.3147, expected range: 3.1423 12.0502 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68183 : out of range
Severe: avg_fgdepar=-19.9521, expected range: -1.3168 2.0916 Severe: rms_fgdepar=19.9521, expected range: 0.0000 2.3414 Severe: avg_est_pge=0.8096, expected range: -0.0006 0.0007 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68353 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=-14.3592, expected range: -4.6289 3.9789 Severe: rms_fgdepar=14.3592, expected range: 0.0000 4.6409 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71451 : out of range
Severe: avg_fgdepar=-12.7880, expected range: -8.3173 4.1151 Severe: rms_fgdepar=13.0263, expected range: 0.0000 7.0528 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72556 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=10.5745, expected range: 0.0000 5.9215 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72562 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=-16.5066, expected range: -8.2977 5.2649 Severe: rms_fgdepar=16.6288, expected range: 0.0000 9.5053 |
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| METAR 2M TEMPERATURE (K) HBBA : out of range
Severe: rms_fgdepar=11.7254, expected range: 0.0000 4.9456 |
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| METAR 2M TEMPERATURE (K) KBKF : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=11.1700, expected range: 0.9816 4.3510 |
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| METAR 2M TEMPERATURE (K) MMMV : out of range
Severe: avg_fgdepar=-17.7801, expected range: -7.5464 7.0807 Severe: rms_fgdepar=17.7801, expected range: 0.0000 10.4920 |
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| LAND TEMP 2M TEMPERATURE (K) 72562 : out of range
Severe: avg_fgdepar=-18.6191, expected range: -11.9199 13.5069 Severe: rms_fgdepar=18.6191, expected range: 0.0000 10.7229 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 71451 : out of range
Severe: avg_fgdepar=-12.1427, expected range: -8.4970 4.2643 Severe: rms_fgdepar=12.7472, expected range: 0.0000 7.1456 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 72562 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=-15.9875, expected range: -9.1932 6.9423 Severe: rms_fgdepar=16.1092, expected range: 0.0000 9.4176 |
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