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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-28 00:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0985, expected range: 0.1615 0.1828
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4263, expected range: -0.3521 -0.2949
iasi
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3999, expected range: -0.3632 -0.3264
METOP-B IASI RADIANCES CHANNEL 170 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1777, expected range: 0.2102 0.2211
METOP-C IASI RADIANCES CHANNEL 89 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2778, expected range: -0.2125 -0.2041
METOP-C IASI RADIANCES CHANNEL 183 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1678, expected range: 0.1896 0.2057
METOP-C IASI RADIANCES CHANNEL 189 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1408, expected range: 0.1601 0.1692
METOP-C IASI RADIANCES CHANNEL 195 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0987, expected range: 0.1249 0.1306
atms
NPP ATMS RADIANCES CHANNEL 21 : out of range
Considerable: avg_biascorr=0.0577, expected range: 0.0032 0.0386
gpsro
METOP-B GRAS SETTING (14 impact heights affected) : out of range
Slight: obs_number=820.0000, expected range: 1060.8270 1359.4397
Atmospheric Motion Vector
GOES-16 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=402.0000, expected range: 754.4177 1012.7054
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 2 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1668, expected range: 0.1322 0.1476
scatt
METOP-B ASCAT WIND VECTOR DIFF (M/S) : out of range
Considerable: obs_number=23368.0000, expected range: 31883.4900 38370.2600
METOP-C ASCAT WIND VECTOR DIFF (M/S) : out of range
Considerable: obs_number=24284.0000, expected range: 32021.5866 37664.4134
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) 51656 PRESSURE LAYER 900-1200 (HPA : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8591, expected range: -0.0162 0.7500
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 46.16 492.19
LAND TEMP TEMPERATURE (K) 17095 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=11.5046, expected range: 0.6704 1.3800
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=4.8736, expected range: 0.6817 1.8474
LAND TEMP Q (G/KG) 34858 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.6858, expected range: 0.0000 3.2251
Severe: avg_pge=0.8599, expected range: -0.0012 0.0073
HIGH RESO LAND TEMP TEMPERATURE (K) 10868 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.0440, expected range: 0.0000 2.0680
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 310.2844
HIGH RESO LAND TEMP Q (G/KG) 76458 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.0474, expected range: 0.0000 1.6455
HIGH RESO LAND TEMP Q (G/KG) 72712 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=4.3592, expected range: 0.0000 1.7518
HIGH RESO LAND TEMP Q (G/KG) 94332 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.9924, expected range: 0.0000 1.6346
HIGH RESO LAND TEMP Q (G/KG) 60630 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.2432, expected range: 0.0000 0.9724
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : missing
Severe: obs_number=0.0000, expected range: 44.1686 101.8314
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1051.0000, expected range: 1217.0546 1264.6954
amdar
All TAMDAR TEMPERATURE (K) ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 0.00 282.88
WIGOS AMDAR TEMPERATURE (K) BPCWUWRA (3 pressure layers affected) : out of range
Severe: rms_fgdepar=6.2947, expected range: 0.0000 1.3645
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0702 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1748, expected range: 0.0000 8.3584
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0779 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.2025, expected range: 0.0000 6.4178
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1101 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=21.3674, expected range: -3.4565 11.1334
Severe: rms_fgdepar=22.2775, expected range: 0.0000 13.0699
Severe: avg_pge=0.8707, expected range: -0.5831 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1128 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=21.4557, expected range: -3.4012 8.4413
Severe: rms_fgdepar=21.4557, expected range: 0.0000 8.7513
MODE-S WIND VECTOR DIFF (M/S) MAC1112 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7670, expected range: 0.0000 6.3172
MODE-S WIND VECTOR DIFF (M/S) M8BC348 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.6875, expected range: 0.0000 9.5011
MODE-S WIND VECTOR DIFF (M/S) MC2181E PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.5455, expected range: 0.4567 6.9536
MODE-S WIND VECTOR DIFF (M/S) MF5C42E PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.0232, expected range: 0.0000 6.9634
ADS-C WIND VECTOR DIFF (M/S) AJAEILJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.0649, expected range: 0.0000 8.9205
ADS-C WIND VECTOR DIFF (M/S) UOVDEXJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.4472, expected range: 0.0000 13.2968
ADS-C WIND VECTOR DIFF (M/S) GYOTA4ZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.7533, expected range: 0.0000 17.8808
airep
AIREP WIND VECTOR DIFF (M/S) KLM142 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=48.1853, expected range: -1.4166 7.8226
Severe: rms_fgdepar=48.1853, expected range: 0.0000 10.4719
AIREP WIND VECTOR DIFF (M/S) AAL728 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.8823, expected range: 1.3466 8.0349
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 678.9827
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 64450 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.5106, expected range: 1.0899 9.0356
LAND PILOT WIND VECTOR DIFF (M/S) 48887 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=26.0483, expected range: 0.0000 5.7692
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68918 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8670, expected range: -0.5365 0.7500
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9978, expected range: -1.6626 0.7500
MANUAL LAND SYNOP RH2M (%) 68572 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=58.6920, expected range: -75.5849 107.3468
Severely_persistent: rms_fgdepar=58.6920, expected range: 0.0000 102.3333
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=842.2835, expected range: 561.0289 1178.5098
Severely_persistent: rms_fgdepar=845.0506, expected range: 560.0836 1180.8957
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91369 : out of range
Severe: rms_fgdepar=481.4079, expected range: 0.0000 412.7538
Severe: avg_pge=0.8826, expected range: -1.1146 0.7500
MANUAL LAND SYNOP RH2M (%) 42143 : out of range
Severe: rms_fgdepar=34.2265, expected range: 0.0000 28.6610
Severe: avg_pge=0.8620, expected range: -0.2898 0.3423
MANUAL LAND SYNOP RH2M (%) 25745 : out of range
Severe: rms_fgdepar=30.5535, expected range: 0.0000 16.9414
MANUAL LAND SYNOP RH2M (%) 60765 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=37.2153, expected range: 0.0000 12.2767
MANUAL LAND SYNOP RH2M (%) 16597 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9907, expected range: -1.8852 0.7500
MANUAL LAND SYNOP RH2M (%) 62018 : out of range
Severe: avg_pge=0.9737, expected range: -1.7380 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91841 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=768.2211, expected range: -186.8038 525.4646
Severe: rms_fgdepar=768.2211, expected range: 0.0000 479.8110
Severe: avg_pge=0.9475, expected range: -0.4399 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41032 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=377.3236, expected range: 0.0000 127.6075
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36785 : out of range
Severe: rms_fgdepar=317.5644, expected range: 0.0000 131.0535
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24807 : out of range
Severe: rms_fgdepar=436.2284, expected range: 0.0000 99.1359
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60467 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8309, expected range: -0.5534 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71187 : out of range
Severe: avg_pge=0.8216, expected range: -0.8228 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61687 : out of range
Severe: rms_fgdepar=558.4970, expected range: 0.0000 349.5542
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43097 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=416.3631, expected range: 0.0000 188.9326
Severe: avg_pge=0.8412, expected range: -1.4186 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60419 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=357.8951, expected range: 23.8600 294.4979
Severe: avg_pge=0.8487, expected range: 0.2136 0.7500
BUFR LAND SYNOP RH2M (%) 94234 : out of range
Severe: rms_fgdepar=31.7127, expected range: 0.0000 13.5215
BUFR LAND SYNOP RH2M (%) 72254 : out of range
Severe: avg_fgdepar=50.9824, expected range: -8.8016 9.1106
Severe: rms_fgdepar=50.9824, expected range: 0.0000 8.5982
BUFR LAND SYNOP RH2M (%) 95668 : out of range
Severe: rms_fgdepar=34.1203, expected range: 0.0000 15.2940
BUFR LAND SYNOP RH2M (%) 60419 : out of range
Severe: rms_fgdepar=33.0248, expected range: 0.0000 11.1545
ship
SHIP WIND VECTOR DIFF (M/S) VRKX7 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=24.0535, expected range: -6.8471 54.3751
Severely_persistent: rms_fgdepar=24.0535, expected range: 0.0000 54.0648
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8583, expected range: 0.5163 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severely_persistent: obs_number=0, expected range: 108.83 200.95
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severely_persistent: obs_number=0, expected range: 228.84 241.66
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6XQ2 : out of range
Severe: rms_fgdepar=554.0280, expected range: 0.0000 575.5999
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7UP3 : out of range
Severe: avg_fgdepar=-1344.1431, expected range: -461.6140 -46.7053
Severe: rms_fgdepar=1344.1431, expected range: 0.6797 451.9860
Severe: avg_pge=0.9337, expected range: 0.1890 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5UO7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=1020.4424, expected range: 657.5856 1313.1658
Severe: rms_fgdepar=1020.4424, expected range: 657.5856 1313.1658
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HJF9 : out of range
Severe: rms_fgdepar=328.3756, expected range: 0.0000 151.9706
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200188 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8672, expected range: -0.8388 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501671 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8317, expected range: -0.1877 0.7500
metar
METAR SURFACE PRESSURE (PA) FQBR : out of range
Severe: rms_fgdepar=308.4592, expected range: 0.0000 108.8696
METAR SURFACE PRESSURE (PA) FNHU : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=378.9674, expected range: 0.0000 161.0922
snow
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.6188, expected range: 45.2381 64.5863
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=-773.3469, expected range: -773.9160 -771.9041
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=773.3470, expected range: 771.9041 773.9161
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=61.0000, expected range: 43.9716 71.3000
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.1154, expected range: 44.2269 71.6233
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.7179, expected range: 54.9700 64.8005
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=55.3793, expected range: 56.0823 64.6413
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
Severe: rms_fgdepar=50.2195, expected range: 7.4107 54.3943
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI140F8 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=16.7000, expected range: -5.3416 28.5169
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI140F8 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.9171, expected range: 0.0000 27.6085
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.1949, expected range: -20.0812 -16.6911
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.1980, expected range: 16.6988 20.0981
METAR 2M TEMPERATURE (K) KHYI : out of range
Severe: rms_fgdepar=10.3057, expected range: 0.0491 3.9103
LAND TEMP 2M TEMPERATURE (K) 83612 : out of range
Severe: avg_fgdepar=12.7891, expected range: -2.9327 3.6327
Severe: rms_fgdepar=12.7891, expected range: 0.0000 3.1249
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1AFE9 : out of range
Severe: rms_fgdepar=12.0756, expected range: 0.0000 11.0226
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 72254 : out of range
Severe: rms_fgdepar=32.3918, expected range: 0.0000 12.9864
MANUAL LAND SYNOP RH2M (%) 72263 : out of range
Severe: rms_fgdepar=31.3736, expected range: 0.0000 9.2450
METAR RH2M (%) KAUS : out of range
Severe: rms_fgdepar=31.3186, expected range: 6.4052 19.0122