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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-10-26 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 1521 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0721, expected range: -0.0944 -0.0921
METOP-B IASI RADIANCES CHANNEL 1639 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0068, expected range: -0.0352 -0.0142
METOP-B IASI RADIANCES CHANNEL 1658 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1209, expected range: 0.0648 0.0810
METOP-C IASI RADIANCES CHANNEL 1639 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0594, expected range: 0.0280 0.0437
METOP-C IASI RADIANCES CHANNEL 1652 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1154, expected range: 0.0803 0.0968
METOP-C IASI RADIANCES CHANNEL 292 : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.0478, expected range: -0.0418 -0.0341
METOP-C IASI RADIANCES CHANNEL 1658 : out of range
3 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.1212, expected range: 0.0919 0.1090
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES (11 channels affected) : out of range
Severe: obs_number=43360.0000, expected range: 54820.0951 56886.0299
Atmospheric Motion Vector
NPP VIIRS AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: avg_press=252.6808, expected range: 266.7003 284.2452
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Slight: avg_press=252.8156, expected range: 265.5051 286.0552
mwri
FY-3D MWRI RADIANCES (6 channels affected) : out of range
Considerable: obs_number=8871.0000, expected range: 13421.9359 16059.4391
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0105, expected range: -0.0055 -0.0003
Severely_persistent: stdev_fgdepar=0.0127, expected range: 0.0097 0.0098
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 640-641 (HPA) : out of range
4 times in the last 10 days for at least one item
Slight: avg_fgdepar=-0.5611, expected range: -1.2343 -0.7169
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 32618 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.7021, expected range: 0.0000 12.2720
LAND TEMP Q (G/KG) 74794 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.1470, expected range: 0.0000 0.7030
LAND TEMP Q (G/KG) 41256 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.4240, expected range: 0.0000 10.2227
LAND TEMP Q (G/KG) 26477 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.0923, expected range: 0.0000 0.9056
LAND TEMP Q (G/KG) 83768 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=6.7309, expected range: -2.0906 5.2668
Severe: rms_fgdepar=6.7309, expected range: 0.0000 5.2668
Severe: avg_pge=0.9183, expected range: -0.3275 0.3856
All LAND TEMP ALL LAYERS WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 0.00 272.08
All LAND TEMP ALL LAYERS WMO BLOCK 43 : all data missing
Severe: obs_number=0, expected range: 0.00 277.57
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04270 PRESSURE LAYER 900-12 : out of range
Severe: avg_pge=0.8905, expected range: -1.0540 0.7500
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
Severe: obs_number=193.0000, expected range: 91.4629 101.0371
HIGH RESO LAND TEMP Q (G/KG) 94461 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.1833, expected range: 0.0000 1.1944
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=341.0000, expected range: 413.9539 440.5461
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
Considerable: obs_number=71.0000, expected range: 88.1311 95.2022
amdar
WIGOS AMDAR TEMPERATURE (K) PN3KGCBA (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.6600, expected range: 0.0000 1.1146
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07145 PRESSURE LAYER 900-1200 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8460, expected range: -0.3768 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 12985 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8712, expected range: -1.1052 0.7500
synop
AUTOMATIC LAND SYNOP RH2M (%) 68593 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.9738, expected range: -63.8680 -14.0463
Severely_persistent: rms_fgdepar=55.9738, expected range: 14.0463 63.8680
Severely_persistent: avg_pge=1.0000, expected range: -0.9671 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 83825 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8089, expected range: -0.9147 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48935 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8653, expected range: -1.2615 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) _MI1425D : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8447, expected range: 0.3486 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 36883 : out of range
Severe: rms_fgdepar=42.2308, expected range: 0.0000 19.4763
AUTOMATIC LAND SYNOP RH2M (%) 68819 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8604, expected range: -0.3176 0.3779
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 35331 : out of range
Severe: rms_fgdepar=319.8453, expected range: 0.0000 108.4452
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 35224 : out of range
Severe: rms_fgdepar=426.6942, expected range: 0.0000 149.6681
Severe: avg_pge=0.9053, expected range: -0.4330 0.5606
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 35816 : out of range
Severe: rms_fgdepar=388.1065, expected range: 0.0000 79.1222
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 28776 : out of range
Severe: rms_fgdepar=398.9600, expected range: 0.0000 157.9860
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 35167 : out of range
Severe: rms_fgdepar=441.7291, expected range: 0.0000 140.1595
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 28678 : out of range
Severe: rms_fgdepar=395.8137, expected range: 0.0000 139.4108
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 34498 : out of range
Severe: rms_fgdepar=345.2699, expected range: 0.0000 97.4098
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 38049 : out of range
Severe: rms_fgdepar=378.5301, expected range: 0.0000 103.9211
Severe: avg_pge=0.8874, expected range: -0.2400 0.3288
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91203 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-525.3432, expected range: -650.2941 652.5504
Severe: rms_fgdepar=639.5478, expected range: 0.0000 515.9547
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38403 : out of range
Severe: rms_fgdepar=407.3266, expected range: 0.0000 290.1237
Severe: avg_pge=0.8536, expected range: -0.8271 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35265 : out of range
Severe: rms_fgdepar=399.5585, expected range: 0.0000 105.3603
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63887 : out of range
Severe: rms_fgdepar=351.3093, expected range: 0.0000 93.7701
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35358 : out of range
Severe: avg_fgdepar=-504.9358, expected range: -188.3365 225.6804
Severe: rms_fgdepar=507.3608, expected range: 0.0000 152.5145
Severe: avg_pge=0.8806, expected range: -0.3946 0.4864
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83698 : out of range
Severe: avg_pge=0.8437, expected range: -1.0846 0.7500
MANUAL LAND SYNOP Z (M) 63714 : out of range
Severe: rms_fgdepar=437.5913, expected range: 31.3144 149.5347
MANUAL LAND SYNOP Z (M) 41508 : out of range
Severe: avg_pge=0.9329, expected range: -0.3600 0.4605
BUFR LAND SYNOP RH2M (%) 71051 : out of range
Severe: rms_fgdepar=30.0956, expected range: 0.0000 10.8717
BUFR LAND SYNOP RH2M (%) 33391 : out of range
Severe: rms_fgdepar=32.6559, expected range: 0.0000 18.4346
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48930 : out of range
Severe: rms_fgdepar=588.0157, expected range: 33.0631 250.5915
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48092 : out of range
Severe: rms_fgdepar=341.3975, expected range: 0.0000 159.0366
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33633 : out of range
Severe: avg_pge=0.8363, expected range: -1.0949 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24143 : out of range
Severe: rms_fgdepar=519.3959, expected range: 0.0000 97.0152
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28985 : out of range
Severe: rms_fgdepar=314.6726, expected range: 0.0000 111.6925
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33517 : out of range
Severe: avg_pge=0.8084, expected range: -1.0596 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48957 : out of range
Severe: rms_fgdepar=506.2051, expected range: 0.0000 260.6966
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29348 : out of range
Severe: rms_fgdepar=348.5228, expected range: 0.0000 70.1923
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28978 : out of range
Severe: rms_fgdepar=349.1792, expected range: 0.0000 108.5891
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28879 : out of range
Severe: rms_fgdepar=393.6154, expected range: 0.0000 147.3945
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=86.0000, expected range: 100.8333 105.8333
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCSJ : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-933.8270, expected range: -292.3859 181.1978
Severely_persistent: rms_fgdepar=933.8270, expected range: 0.0000 469.9553
Severely_persistent: avg_pge=0.9061, expected range: -1.4149 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) DFGX2 : out of range
Severe: avg_pge=0.8651, expected range: -1.1587 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRMV8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.1697, expected range: -5.4526 15.1546
Severe: rms_fgdepar=22.1865, expected range: 0.0000 16.8955
Severe: avg_pge=0.9188, expected range: -0.3414 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ZMMC : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8768, expected range: -0.3660 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 7JDK : out of range
Severe: avg_fgdepar=24.3607, expected range: -0.9358 36.3946
Severe: rms_fgdepar=24.3607, expected range: 0.0000 36.4837
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 45196 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=408.4856, expected range: 0.0000 97.7642
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7FK6 : out of range
Severe: avg_fgdepar=556.9093, expected range: -238.2008 816.7228
Severe: rms_fgdepar=556.9093, expected range: 0.0000 894.0382
BUFR SHIP SYNOP SURFACE PRESSURE (PA) BFHM5UQ : out of range
Severe: rms_fgdepar=323.4259, expected range: 0.0000 121.5927
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UAST : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=856.0084, expected range: 144.6499 1393.2045
Severe: rms_fgdepar=856.0084, expected range: 144.6499 1393.2045
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 4600073 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9014, expected range: -0.0772 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4701738 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8419, expected range: -0.7925 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4402710 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=381.2561, expected range: 0.0000 130.5815
DRIFTING BUOYS SURFACE PRESSURE (PA) 4402711 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=303.2764, expected range: 0.0000 129.0779
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203814 : out of range
Severe: avg_fgdepar=-584.3293, expected range: -771.4936 809.6286
Severe: rms_fgdepar=584.6203, expected range: 0.0000 724.2234
Severe: avg_pge=0.9063, expected range: -1.0584 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501546 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=421.6115, expected range: 0.0000 270.7941
Severe: avg_pge=0.8294, expected range: -0.6426 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204577 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=543.6941, expected range: 0.0000 384.8324
Severe: avg_pge=0.8146, expected range: -0.9784 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KQFW : out of range
37 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-520.9246, expected range: -585.4296 -456.8849
Severely_persistent: rms_fgdepar=521.7665, expected range: 457.2560 587.6381
snow
BUFR LAND SYNOP SNOW (CM) _MI1EDCD : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=100.0000, expected range: 98.9675 100.6217
BUFR LAND SYNOP SNOW (CM) _MI1EDCD : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=100.0000, expected range: 98.9676 100.6217
BUFR LAND SYNOP SNOW (CM) 01091 : out of range
Severe: rms_fgdepar=26.1075, expected range: 0.0000 6.2371
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI187D8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.1050, expected range: -23.4108 15.8019
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI187D8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.1050, expected range: -11.7683 22.1783
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71931 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=18.1047, expected range: -2.4213 2.0548
Severe: rms_fgdepar=18.1094, expected range: 0.0000 2.6468
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 35793 : out of range
Severe: rms_fgdepar=11.3792, expected range: 0.0000 4.6278
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.4070, expected range: -13.3071 -1.4719
Severe: rms_fgdepar=13.5931, expected range: 1.9912 13.2884
METAR 2M TEMPERATURE (K) KDPG : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.0175, expected range: 0.0000 6.0213
METAR 2M TEMPERATURE (K) LERL : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=16.4863, expected range: -3.9459 5.5740
Severe: rms_fgdepar=16.4863, expected range: 0.1205 5.2957
METAR 2M TEMPERATURE (K) MMRX : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.3966, expected range: 1.0426 3.5715
LAND TEMP 2M TEMPERATURE (K) 04320 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=16.7798, expected range: -6.7583 8.0407
Severe: rms_fgdepar=16.7798, expected range: -4.0891 7.7053
BUFR LAND SYNOP 2M TEMPERATURE (K) 71931 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=18.0380, expected range: -2.4619 2.0017
Severe: rms_fgdepar=18.0425, expected range: 0.0000 2.7196
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.5354, expected range: -13.6064 -1.3201
Severe: rms_fgdepar=14.3394, expected range: 1.8696 13.5487
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=79.0000, expected range: 120.8566 185.1434
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=1224.0000, expected range: 1365.4631 1439.6619
rh2m
BUFR LAND SYNOP RH2M (%) _MI1EECD : out of range
Severe: rms_fgdepar=30.9811, expected range: 0.1455 17.2950