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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-09 00:00

iasi
METOP-B IASI RADIANCES (13 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=0.2731, expected range: 0.2147 0.2388
METOP-C IASI RADIANCES (11 channels affected) : out of range
Severe: avg_biascorr=0.2149, expected range: 0.1483 0.1846
atms
NOAA20 ATMS RADIANCES CHANNEL 11 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4060, expected range: -0.3783 -0.3589
gpsro
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 74.68 713.87
All KOMPSAT-5 GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 0.00 1338.65
SPIRE LEMUR 3U GPSRO RISING HEIGHT 40-42 KM : out of range
Slight: stdev_norm_fgdepar=0.8829, expected range: 0.7031 0.8387
resat
AURA OMI OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=11.1183, expected range: 9.4964 9.6334
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-3.9952, expected range: -3.3301 -3.2161
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9068, expected range: -1.5621 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severely_persistent: obs_number=0, expected range: 85.68 169.52
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 404.22
LAND TEMP TEMPERATURE (K) 24947 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=11.5761, expected range: -3.5089 1.8640
Severe: avg_pge=0.9240, expected range: -0.2574 0.4236
LAND TEMP TEMPERATURE (K) 24947 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=11.5761, expected range: 0.1117 3.5481
LAND TEMP TEMPERATURE (K) 17220 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.7029, expected range: 0.0000 1.8223
LAND TEMP TEMPERATURE (K) 30935 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-10.8361, expected range: -23.9067 15.7118
Severe: rms_fgdepar=10.8361, expected range: 0.0000 19.1509
Severe: avg_pge=0.9302, expected range: 0.0847 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 24343 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=22.2110, expected range: -0.0028 4.4925
LAND TEMP WIND VECTOR DIFF (M/S) 24343 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=28.2363, expected range: 0.1335 5.0962
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.8518, expected range: 0.3484 8.9939
LAND TEMP WIND VECTOR DIFF (M/S) 42701 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8319, expected range: -0.5848 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 24641 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=18.0360, expected range: 0.0000 5.5460
LAND TEMP WIND VECTOR DIFF (M/S) 24641 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8689, expected range: -0.4431 0.6334
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 124.73 165.49
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU6629 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.6069, expected range: -2.8095 8.0800
Severe: rms_fgdepar=27.1684, expected range: 0.0000 9.1487
WIGOS AMDAR WIND VECTOR DIFF (M/S) AU0332 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=16.9096, expected range: 0.0000 5.8377
airep
AIREP WIND VECTOR DIFF (M/S) UAL930 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.2526, expected range: 0.0000 7.9419
AIREP WIND VECTOR DIFF (M/S) UAL82 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3519, expected range: 0.0000 15.9914
AIREP WIND VECTOR DIFF (M/S) AFR475 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=29.8817, expected range: -29.4676 41.4559
AIREP WIND VECTOR DIFF (M/S) KLM749 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.6541, expected range: 0.0000 6.7707
AIREP WIND VECTOR DIFF (M/S) VIR6J PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=26.7381, expected range: 0.3769 6.8065
prof
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 303.0011
Severe: obs_number=0.0000, expected range: 0.0000 303.0011
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-601.6820, expected range: -1738.6509 1165.5698
Severely_persistent: rms_fgdepar=645.8897, expected range: 131.0504 1126.3194
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14443 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=507.3017, expected range: 284.4327 618.2259
Severely_persistent: rms_fgdepar=507.3161, expected range: 286.5526 616.7676
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86926 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-591.7992, expected range: -704.8205 -473.0160
Severely_persistent: rms_fgdepar=592.8894, expected range: 475.8807 704.5066
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08347 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=749.2789, expected range: -1173.5520 2306.0452
Severely_persistent: rms_fgdepar=749.3316, expected range: 0.0000 2277.7903
Severely_persistent: avg_pge=0.9413, expected range: -1.5304 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8496, expected range: -1.2758 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 35391 : out of range
Severe: rms_fgdepar=38.1014, expected range: 0.0000 19.1892
MANUAL LAND SYNOP RH2M (%) 40794 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8077, expected range: -1.2748 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76040 : out of range
Severe: rms_fgdepar=364.7724, expected range: 0.0000 172.8630
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78711 : out of range
Severe: avg_fgdepar=500.0556, expected range: -357.7716 307.4140
Severe: rms_fgdepar=500.0556, expected range: 0.0000 159.4624
Severe: avg_pge=0.8912, expected range: -0.9413 0.7500
BUFR LAND SYNOP RH2M (%) 71224 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=46.6207, expected range: 0.0000 14.5658
Severe: avg_pge=0.9631, expected range: 0.0007 0.0056
BUFR LAND SYNOP RH2M (%) 72764 : out of range
Severe: rms_fgdepar=33.0717, expected range: 0.0000 6.9576
BUFR LAND SYNOP RH2M (%) 41936 : out of range
Severe: rms_fgdepar=39.8594, expected range: 0.0000 13.0618
BUFR LAND SYNOP RH2M (%) 72776 : out of range
Severe: rms_fgdepar=44.9529, expected range: 0.0000 8.5275
BUFR LAND SYNOP RH2M (%) 33719 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.5964, expected range: 0.0000 16.4748
BUFR LAND SYNOP RH2M (%) 72569 : out of range
Severe: rms_fgdepar=41.9152, expected range: 0.0000 14.4353
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94981 : out of range
Severe: rms_fgdepar=429.5896, expected range: 0.0000 64.2525
Severe: avg_pge=0.8657, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30328 : out of range
Severe: rms_fgdepar=573.1029, expected range: 0.0000 280.6413
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FMI2 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8721, expected range: 0.1260 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VDBY : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=792.9011, expected range: -599.4379 1022.0346
Severely_persistent: rms_fgdepar=794.1060, expected range: 0.0000 1211.7080
Severely_persistent: avg_pge=0.8697, expected range: -1.0266 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDC3786 : out of range
Severe: rms_fgdepar=355.7029, expected range: 0.0000 189.8659
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7ZZ6 : out of range
Severe: rms_fgdepar=661.1287, expected range: -571.0511 835.6135
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRFI7 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-1073.4191, expected range: -284.5968 164.3777
Severe: rms_fgdepar=1073.4191, expected range: 0.0000 327.5699
Severe: avg_pge=0.9137, expected range: -1.0676 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3ETA8 : out of range
Severe: rms_fgdepar=307.4203, expected range: 0.0000 141.7810
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8174, expected range: 0.7199 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101714 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=338.8643, expected range: 0.0000 75.2748
DRIFTING BUOYS SURFACE PRESSURE (PA) 3201777 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8365, expected range: 0.1707 0.7500
metar
METAR SURFACE PRESSURE (PA) MHPL : out of range
Severe: avg_fgdepar=510.9253, expected range: -390.9145 308.8389
Severe: rms_fgdepar=517.3989, expected range: 0.0000 309.9952
Severe: avg_pge=0.8031, expected range: -0.4518 0.7500
METAR SURFACE PRESSURE (PA) SLJO : out of range
Severe: avg_fgdepar=511.7374, expected range: -266.2971 201.0570
Severe: rms_fgdepar=511.7374, expected range: 0.0000 366.9760
METAR SURFACE PRESSURE (PA) OIBV : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=458.0559, expected range: 0.0000 168.4700
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=-774.0009, expected range: -773.1201 -772.3717
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=774.0009, expected range: 772.3721 773.1199
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.1765, expected range: 37.6278 58.9657
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.6985, expected range: 38.7312 59.4550
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=55.7273, expected range: 39.2371 55.8210
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=56.1435, expected range: 40.6174 55.1148
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.5913, expected range: -25.4408 12.5709
Severely_persistent: rms_fgdepar=13.6796, expected range: 0.0000 23.0124
BUFR LAND SYNOP 2M TEMPERATURE (K) 80010 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=14.2640, expected range: -9.8307 24.4078
Severely_persistent: rms_fgdepar=14.2640, expected range: 0.0004 20.5901
BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.3792, expected range: -25.7751 12.4162
Severely_persistent: rms_fgdepar=13.4289, expected range: 0.0000 23.5534
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.1349, expected range: -19.8598 -14.6072
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.1742, expected range: 14.6247 19.8654
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.8596, expected range: -21.2823 -11.9372
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.9113, expected range: 11.9544 21.2789
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52323 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=12.5242, expected range: -17.2429 22.1873
Severe: rms_fgdepar=12.5242, expected range: 0.0000 14.2117
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36953 : out of range
Severe: rms_fgdepar=11.6922, expected range: 1.6450 6.5565
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72569 : out of range
Severe: rms_fgdepar=11.8813, expected range: 0.0000 6.0369
METAR 2M TEMPERATURE (K) KVCT : out of range
Severe: avg_fgdepar=-18.2451, expected range: -2.3586 3.0550
Severe: rms_fgdepar=18.2451, expected range: 1.4178 3.0214
LAND TEMP 2M TEMPERATURE (K) 71802 : out of range
Severe: rms_fgdepar=10.7424, expected range: 0.0000 3.0662
rh2m
METAR RH2M (%) KGTF : out of range
Severe: rms_fgdepar=37.7938, expected range: 0.0000 16.6275
BUFR LAND SYNOP RH2M (%) 08224 : out of range
Severe: rms_fgdepar=34.2632, expected range: 0.0000 13.7158
BUFR LAND SYNOP RH2M (%) 02917 : out of range
Severe: rms_fgdepar=33.5588, expected range: 0.0000 12.7557
BUFR LAND SYNOP RH2M (%) _MF15DD9 : out of range
Severe: rms_fgdepar=39.3730, expected range: 1.5556 17.3041