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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-01 00:00
| cris | ||
| All NPP CRIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 14897.63 15980.17 |
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| airs | ||
| AQUA AIRS RADIANCES (23 channels affected) : out of range
Slight: obs_number=9120.0000, expected range: 9811.2667 11147.2333 |
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| atms | ||
| All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11689.75 14179.45 |
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| ssmis | ||
| DMSP-17 SSMIS RADIANCES (5 channels affected) : out of range
3 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.1175, expected range: 0.4890 0.4890 |
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| DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
17 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.0770, expected range: 0.5113 0.5113 |
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| DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
18 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.0471, expected range: 0.5874 0.5874 |
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| DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
13 times in the last 10 days for at least one item Slight: stdev_norm_fgdepar=0.0317, expected range: 0.6393 0.6393 |
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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: 176.19 2500.50 |
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| All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 308.50 1542.91 |
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| Radiosondes | ||
| LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=7.1630, expected range: -3.7296 12.4343 Severely_persistent: rms_fgdepar=7.5274, expected range: 0.0000 13.0875 |
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| LAND TEMP TEMPERATURE (K) 37055 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=8.9208, expected range: 0.0000 2.2179 Severe: avg_pge=0.8577, expected range: -0.3762 0.6100 |
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| LAND TEMP TEMPERATURE (K) 24507 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.8899, expected range: 0.0000 2.5545 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: rms_fgdepar=22.2374, expected range: 0.0000 21.9195 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 17220 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.9306, expected range: 0.0000 10.6067 Severe: avg_pge=0.8964, expected range: -0.4343 0.7500 |
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| LAND TEMP WIND VECTOR DIFF (M/S) 89512 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8813, expected range: -0.6287 0.7500 |
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| LAND TEMP Q (G/KG) 37055 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.5408, expected range: 0.0000 1.0968 |
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| LAND TEMP Q (G/KG) 76644 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.9952, expected range: -0.0211 0.0349 |
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| LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=8.2654, expected range: 0.0943 6.8563 Severe: rms_fgdepar=8.2654, expected range: 0.0306 7.0153 Severe: avg_pge=0.9247, expected range: -0.0821 0.1138 |
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| All LAND TEMP ALL LAYERS WMO BLOCK 62 : all data missing
Severe: obs_number=0, expected range: 29.65 132.15 |
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| HIGH RESO LAND TEMP Q (G/KG) 50774 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.5853, expected range: 0.0000 1.4531 |
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| HIGH RESO LAND TEMP Q (G/KG) 50953 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=2.5498, expected range: 0.2464 1.4828 |
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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=163.0000, expected range: 88.0349 96.8540 |
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| All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 21.37 271.19 |
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| All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severe: obs_number=0, expected range: 99.46 131.97 |
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| HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item Considerable: rms_fgdepar=2.0953, expected range: 0.1432 1.3688 |
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| amdar | ||
| WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
7 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-6.0413, expected range: -10.0093 -0.2999 Severely_persistent: rms_fgdepar=6.2316, expected range: 0.7941 9.9011 |
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| WIGOS AMDAR TEMPERATURE (K) ZLK1T1ZA PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8570, expected range: -1.2749 0.7500 |
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| ADS-C WIND VECTOR DIFF (M/S) OZOW5DJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=25.2332, expected range: -6.3600 13.8654 Severe: rms_fgdepar=25.2332, expected range: 0.0000 13.8894 |
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| ADS-C WIND VECTOR DIFF (M/S) 4HBK4UZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.0304, expected range: 0.4712 6.9076 |
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| WIGOS AMDAR Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: rms_fgdepar=2.8477, expected range: 1.4937 2.6657 |
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| prof | ||
| All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 188.76 844.96 |
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| All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 188.76 844.96 |
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| pilot | ||
| LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=23.7060, expected range: -5.0899 19.3880 Severe: rms_fgdepar=25.2010, expected range: 0.0000 18.8919 |
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| LAND PILOT WIND VECTOR DIFF (M/S) 98433 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=36.4080, expected range: -9.3001 17.4098 Severe: rms_fgdepar=36.4080, expected range: 0.0000 17.4098 Severe: avg_pge=0.9210, expected range: -0.8541 0.7500 |
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| LAND PILOT WIND VECTOR DIFF (M/S) 48453 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.2006, expected range: -4.5191 23.4704 Severe: rms_fgdepar=30.7261, expected range: 0.0000 28.0869 |
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| synop | ||
| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17952 : out of range
11 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8198, expected range: -1.6114 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 62124 : out of range
10 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9995, expected range: -1.8800 0.7500 |
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| BUFR LAND SYNOP RH2M (%) 60253 : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.9995, expected range: -1.7450 0.7500 |
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| AUTOMATIC LAND SYNOP RH2M (%) 68403 : out of range
Severe: avg_fgdepar=53.0068, expected range: -27.9863 39.7437 Severe: rms_fgdepar=53.0068, expected range: 0.0000 20.1639 |
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| AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 10007 : out of range
Severe: rms_fgdepar=344.4305, expected range: 0.0000 105.0118 Severe: avg_pge=0.9020, expected range: -0.8754 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 62011 : out of range
4 times in the last 10 days for at least one item Severe: avg_fgdepar=52.9092, expected range: -32.5886 74.3605 Severe: rms_fgdepar=52.9092, expected range: 0.0000 74.3605 Severe: avg_pge=0.9993, expected range: -1.6927 0.7500 |
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| MANUAL LAND SYNOP RH2M (%) 67655 : out of range
Severe: rms_fgdepar=46.6043, expected range: 0.0000 13.9915 Severe: avg_pge=0.9411, expected range: 0.0015 0.0039 |
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| MANUAL LAND SYNOP RH2M (%) 38656 : out of range
1 times in the last 10 days for at least one item Severe: rms_fgdepar=38.3227, expected range: 0.0000 15.8148 |
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| MANUAL LAND SYNOP RH2M (%) 60468 : out of range
Severe: rms_fgdepar=32.5945, expected range: 0.0000 13.7264 Severe: rms_fgdepar=31.4690, expected range: 0.0000 17.9636 |
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| MANUAL LAND SYNOP RH2M (%) 60559 : out of range
Severe: rms_fgdepar=31.8108, expected range: 0.0000 14.1442 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63450 : out of range
Severe: rms_fgdepar=411.6078, expected range: 0.0000 188.7841 Severe: avg_pge=0.8105, expected range: 0.0000 0.0000 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63331 : out of range
Severe: rms_fgdepar=334.0240, expected range: 0.0000 162.6367 |
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| MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
Severe: rms_fgdepar=417.1320, expected range: -123.3203 183.3913 Severe: avg_pge=0.8365, expected range: -0.0719 0.0879 |
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| BUFR LAND SYNOP RH2M (%) 34401 : out of range
Severe: rms_fgdepar=32.6472, expected range: 0.0000 14.3781 |
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| BUFR LAND SYNOP RH2M (%) 72297 : out of range
Severe: rms_fgdepar=33.7735, expected range: 0.0000 19.8952 Severe: avg_pge=0.9935, expected range: -0.0087 0.0185 |
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| BUFR LAND SYNOP SURFACE PRESSURE (PA) 83825 : out of range
1 times in the last 10 days for at least one item Severe: avg_pge=0.8038, expected range: -0.9797 0.7500 |
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| ship | ||
| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8585 : out of range
14 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=692.3979, expected range: 523.1428 877.0154 Severely_persistent: rms_fgdepar=692.3979, expected range: 523.1428 877.0154 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) PJWM : out of range
22 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=807.8767, expected range: 184.2361 1141.8623 Severely_persistent: rms_fgdepar=807.8767, expected range: 184.2361 1141.8623 Severely_persistent: avg_pge=0.8766, expected range: 0.5669 0.7500 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCF6 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8573, expected range: 0.2175 0.7500 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) RCMSZ4L : out of range
5 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8714, expected range: -0.3241 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFU2 : out of range
Severe: avg_fgdepar=566.7304, expected range: 300.4101 629.4405 Severe: rms_fgdepar=567.4700, expected range: 301.9375 628.6667 Severe: avg_pge=0.8066, expected range: 0.6945 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FLT5 : out of range
Severe: avg_pge=0.8041, expected range: -0.4639 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
Severe: avg_fgdepar=770.6857, expected range: -1215.8809 1638.6088 Severe: rms_fgdepar=770.6857, expected range: 0.0000 1262.5017 Severe: avg_pge=0.8654, expected range: -1.0194 0.7500 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2EIF7 : out of range
Severe: avg_fgdepar=503.5366, expected range: 136.4109 925.9576 Severe: rms_fgdepar=503.5366, expected range: 136.4109 925.9576 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) H3BL : out of range
Severe: avg_fgdepar=-549.9888, expected range: -208.9285 488.8149 Severe: rms_fgdepar=832.3603, expected range: 0.0000 443.4643 |
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| BUFR SHIP SYNOP SURFACE PRESSURE (PA) KABL : out of range
Severe: rms_fgdepar=459.6854, expected range: 0.0000 90.8099 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MLTH5 : out of range
Severe: rms_fgdepar=15.0281, expected range: -8.9936 13.2996 Severe: avg_pge=0.8857, expected range: -0.5054 0.6424 |
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| BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7A4867 : out of range
1 times in the last 10 days for at least one item Severe: avg_pge=0.8759, expected range: 0.4409 0.7500 |
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| buoy | ||
| DRIFTING BUOYS SURFACE PRESSURE (PA) 5401633 : out of range
19 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8417, expected range: -1.0665 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 1401817 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8516, expected range: -0.5328 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 6301679 : out of range
17 times in the last 10 days for at least one item Severely_persistent: avg_pge=0.8439, expected range: -1.4317 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
Severe: obs_number=4563.0000, expected range: 10353.4766 11082.8984 Severe: obs_number=1028.0000, expected range: 2350.4319 2489.0681 Severe: obs_number=151.0000, expected range: 522.3424 602.2458 Severe: obs_number=272.0000, expected range: 929.9723 1068.6159 Severe: obs_number=288.0000, expected range: 717.1071 787.1429 Severe: obs_number=657.0000, expected range: 1533.2542 1707.1208 Severe: obs_number=126.0000, expected range: 430.1564 489.3731 Considerable: obs_number=1725.0000, expected range: 2920.5341 3248.8777 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 4402612 : out of range
2 times in the last 10 days for at least one item Severe: avg_pge=0.8675, expected range: -1.1247 0.7500 |
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| DRIFTING BUOYS SURFACE PRESSURE (PA) 5501667 : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=-656.7173, expected range: -444.4245 442.2915 Severe: rms_fgdepar=656.7839, expected range: -350.3119 500.0106 Severe: avg_pge=0.9154, expected range: -0.7035 0.7500 |
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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=-773.0371, expected range: -774.2557 -771.5550 |
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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=773.0371, expected range: 771.5551 774.2557 |
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| t2m | ||
| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-16.3534, expected range: -12.4180 -4.2764 Severely_persistent: rms_fgdepar=16.3774, expected range: 4.3471 12.5893 |
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| MANUAL LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
8 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-16.9427, expected range: -25.6911 17.9640 Severely_persistent: rms_fgdepar=16.9427, expected range: -13.5985 24.1592 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
14 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-17.0027, expected range: -27.0705 17.0106 Severely_persistent: rms_fgdepar=17.0027, expected range: 0.0000 24.9779 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 78896 : out of range
21 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-18.5982, expected range: -23.1989 -1.7313 Severely_persistent: rms_fgdepar=18.6312, expected range: 3.0546 22.9775 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item Severely_persistent: avg_fgdepar=-16.3724, expected range: -12.4175 -4.3851 Severely_persistent: rms_fgdepar=16.3978, expected range: 4.4587 12.5834 |
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| AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=-18.2907, expected range: -7.9918 7.2809 Severe: rms_fgdepar=18.2908, expected range: 0.0000 7.0780 |
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| METAR 2M TEMPERATURE (K) SBSM : out of range
1 times in the last 10 days for at least one item Severe: avg_fgdepar=15.1740, expected range: -2.5182 2.3862 Severe: rms_fgdepar=16.7956, expected range: 0.0073 4.2141 |
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| METAR 2M TEMPERATURE (K) MMIO : out of range
Severe: rms_fgdepar=12.2518, expected range: 0.0000 13.6590 |
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| METAR 2M TEMPERATURE (K) FNCT : out of range
Severe: rms_fgdepar=10.2545, expected range: 0.0000 3.5426 |
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| LAND TEMP 2M TEMPERATURE (K) 71907 : out of range
Severe: avg_fgdepar=16.8008, expected range: -3.8265 5.2517 Severe: rms_fgdepar=16.8008, expected range: 0.0000 4.9726 |
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| BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
2 times in the last 10 days for at least one item Severe: avg_fgdepar=-18.3759, expected range: -8.0113 7.1867 Severe: rms_fgdepar=18.3760, expected range: 0.0000 7.1133 |
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| rh2m | ||
| MANUAL LAND SYNOP RH2M (%) 17050 : out of range
Severe: rms_fgdepar=31.0734, expected range: 0.0000 14.3311 |
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