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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-07-01 12:00

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=0.1020, expected range: 0.1615 0.1746
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4018, expected range: -0.3767 -0.3516
iasi
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3980, expected range: -0.3632 -0.3401
METOP-B IASI RADIANCES CHANNEL 113 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2423, expected range: 0.2609 0.2829
METOP-B IASI RADIANCES CHANNEL 170 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1832, expected range: 0.2102 0.2223
METOP-C IASI RADIANCES CHANNEL 89 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2771, expected range: -0.2125 -0.1901
METOP-C IASI RADIANCES CHANNEL 144 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1654, expected range: 0.1943 0.2084
METOP-C IASI RADIANCES CHANNEL 183 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1704, expected range: 0.1896 0.2063
METOP-C IASI RADIANCES CHANNEL 189 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1412, expected range: 0.1601 0.1777
METOP-C IASI RADIANCES CHANNEL 195 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1056, expected range: 0.1249 0.1260
METOP-C IASI RADIANCES CHANNEL 329 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2484, expected range: -0.2326 -0.2164
METOP-B IASI RADIANCES (13 channels affected) : out of range
Considerable: obs_number=533.0000, expected range: 0.0000 191.6481
cris
NOAA20 CRIS RADIANCES CHANNEL 33 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1667, expected range: 0.1992 0.2311
gpsro
COSMIC2-E5 GPSRO RISING (24 impact heights affected) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=270.0000, expected range: 912.2025 2958.1504
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.7607, expected range: -4.8985 15.9459
Severely_persistent: rms_fgdepar=7.7612, expected range: 0.0000 15.9957
LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.0099, expected range: -3.0851 14.9332
Severely_persistent: rms_fgdepar=6.0100, expected range: 0.0000 14.4470
LAND TEMP TEMPERATURE (K) 37055 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.9034, expected range: -0.9158 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=5.5948, expected range: 0.6573 1.6320
Severe: rms_fgdepar=3.2471, expected range: 0.8965 1.4204
Severe: avg_fgdepar=10.1519, expected range: -0.6121 0.2348
Severe: rms_fgdepar=13.6653, expected range: 0.1492 1.7917
Severe: avg_fgdepar=8.2489, expected range: -0.3805 0.0068
Severe: rms_fgdepar=12.3228, expected range: 0.3002 1.7200
HIGH RESO LAND TEMP TEMPERATURE (K) 63985 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=10.1519, expected range: -0.5435 0.1304
Severe: rms_fgdepar=13.6653, expected range: 0.0000 2.0968
HIGH RESO LAND TEMP TEMPERATURE (K) 23205 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-11.5084, expected range: -0.7523 1.3811
Severe: rms_fgdepar=12.6424, expected range: 0.0000 2.4758
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-3.9197, expected range: -0.4656 0.8943
Severe: rms_fgdepar=7.2191, expected range: 0.2922 1.7566
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 85586 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=15.7549, expected range: 0.0000 5.8794
Severe: avg_pge=0.8153, expected range: -0.5017 0.7378
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=233.0000, expected range: 335.1126 348.1374
Severe: obs_number=181.0000, expected range: 85.9187 95.6369
Severe: obs_number=66.0000, expected range: 166.6922 187.3078
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=692.0000, expected range: 532.6786 570.0714
amdar
TAMDAR WIND VECTOR DIFF (M/S) 00005178 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=24.5645, expected range: 3.4470 26.7530
Severe: rms_fgdepar=24.5840, expected range: 3.4443 26.9756
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU4634 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.1007, expected range: 0.0000 7.1730
airep
AIREP WIND VECTOR DIFF (M/S) UAE507 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.4926, expected range: 0.0000 7.8855
synop
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8820, expected range: -0.7950 0.7500
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=855.5510, expected range: 602.6409 1112.1636
Severely_persistent: rms_fgdepar=856.6090, expected range: 609.0294 1108.7888
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81996 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=535.5546, expected range: 0.0000 1291.5158
AUTOMATIC LAND SYNOP RH2M (%) 18210 : out of range
Severe: avg_pge=0.9861, expected range: -1.4369 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 35391 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.4094, expected range: 0.0000 12.8763
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: obs_number=1703.0000, expected range: 1905.0239 1916.9761
Severe: obs_number=1654.0000, expected range: 1855.0239 1866.9761
MANUAL LAND SYNOP RH2M (%) 82382 : out of range
Severe: avg_fgdepar=-52.7893, expected range: -9.8226 29.0664
Severe: rms_fgdepar=52.7893, expected range: 0.0000 29.0664
Severe: avg_pge=1.0000, expected range: -0.0051 0.0144
MANUAL LAND SYNOP RH2M (%) 40666 : out of range
Severe: rms_fgdepar=30.8658, expected range: 0.8616 10.4801
Severe: avg_pge=0.9946, expected range: 0.0004 0.0067
Severe: rms_fgdepar=31.9012, expected range: 3.0020 11.9716
MANUAL LAND SYNOP RH2M (%) 61096 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=34.0318, expected range: 0.0000 16.4296
MANUAL LAND SYNOP RH2M (%) 42647 : out of range
Severe: rms_fgdepar=33.7100, expected range: 0.0000 28.5260
Severe: avg_pge=0.9413, expected range: -0.1195 0.1445
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78486 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=308.8578, expected range: 0.0000 109.2678
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83377 : out of range
Severe: avg_fgdepar=979.4930, expected range: -54.2270 83.2059
Severe: rms_fgdepar=979.4930, expected range: 0.0000 69.9617
Severe: avg_pge=0.9315, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40629 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=357.0068, expected range: 0.0000 333.5779
Severe: avg_pge=0.8216, expected range: -1.1158 0.7500
BUFR LAND SYNOP RH2M (%) 34391 : out of range
Severe: rms_fgdepar=32.7661, expected range: 0.0000 17.6549
BUFR LAND SYNOP RH2M (%) 30405 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-52.7846, expected range: -47.7288 44.7441
Severe: rms_fgdepar=52.7846, expected range: 0.0000 36.8256
Severe: avg_pge=0.9939, expected range: -1.4360 0.7500
BUFR LAND SYNOP RH2M (%) 44256 : out of range
Severe: rms_fgdepar=47.1101, expected range: 0.0000 35.5436
Severe: avg_pge=0.9803, expected range: -0.0150 0.0261
BUFR LAND SYNOP RH2M (%) 27799 : out of range
Severe: rms_fgdepar=34.4004, expected range: 0.0000 11.8200
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41960 : out of range
Severe: rms_fgdepar=605.6344, expected range: 0.0000 92.6937
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41571 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=667.9621, expected range: -166.9152 261.0990
Severe: rms_fgdepar=667.9621, expected range: 0.0000 282.3496
Severe: avg_pge=0.9052, expected range: -1.0942 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33517 : out of range
Severe: avg_pge=0.8032, expected range: -0.2712 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43309 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8654, expected range: -1.0714 0.7500
BUFR LAND SYNOP Z (M) 56172 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8316, expected range: -1.2484 0.7500
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5UO7 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1097.8881, expected range: 656.5393 1307.4348
Severely_persistent: rms_fgdepar=1097.8881, expected range: 656.5393 1307.4348
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OZBY2 : out of range
Severe: avg_fgdepar=567.1031, expected range: -1053.0732 767.5738
Severe: rms_fgdepar=568.2085, expected range: 0.0000 524.5533
Severe: avg_pge=0.8112, expected range: -0.6205 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V2024 : out of range
Severe: rms_fgdepar=341.0007, expected range: 0.0000 130.3496
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7987 : out of range
Severe: rms_fgdepar=457.0861, expected range: 0.0000 371.5424
Severe: avg_pge=0.8058, expected range: -0.7758 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) AWWB : out of range
Severe: avg_fgdepar=837.4182, expected range: -606.4707 822.1728
Severe: rms_fgdepar=837.4182, expected range: 0.0000 729.7541
Severe: avg_pge=0.8707, expected range: -1.3613 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF3N : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=450.1256, expected range: 0.0000 129.6081
Severe: avg_pge=0.8350, expected range: -0.1835 0.2227
BUFR SHIP SYNOP SURFACE PRESSURE (PA) HOPW : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=571.9600, expected range: 50.4707 855.0918
Severe: rms_fgdepar=571.9600, expected range: 53.9107 857.7100
Severe: avg_pge=0.8059, expected range: 0.0383 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6XQ2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8256, expected range: -0.6481 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUMDE03 : out of range
Severe: rms_fgdepar=16.6494, expected range: 0.7859 9.7784
Severe: avg_pge=0.9010, expected range: -0.3315 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE37 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8301, expected range: -0.2015 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6YM7 : out of range
Severe: avg_fgdepar=34.2097, expected range: -2.6632 8.0013
Severe: rms_fgdepar=34.2097, expected range: 0.0000 8.1716
Severe: avg_pge=0.9513, expected range: -0.6787 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9034, expected range: 0.4675 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101513 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=540.2296, expected range: -317.3929 671.8553
Severely_persistent: rms_fgdepar=544.6796, expected range: 0.0000 689.9608
Severely_persistent: avg_pge=0.8914, expected range: -0.9906 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5300555 : out of range
Severe: rms_fgdepar=366.7522, expected range: 0.0000 110.5247
metar
METAR SURFACE PRESSURE (PA) SGSJ : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=979.4311, expected range: -1453.9064 2000.3123
Severely_persistent: rms_fgdepar=979.4311, expected range: 0.0000 1802.4847
Severely_persistent: avg_pge=0.9068, expected range: -1.5114 0.7500
METAR SURFACE PRESSURE (PA) VTPP : out of range
Severe: rms_fgdepar=454.0562, expected range: 0.0000 174.8678
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.5000, expected range: 0.3520 65.3538
Severely_persistent: rms_fgdepar=54.8862, expected range: 3.2955 65.1810
MANUAL LAND SYNOP SNOW (CM) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-3295.3335, expected range: -487.2114 332.0398
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=-773.8657, expected range: -774.4400 -771.8304
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=773.8657, expected range: 771.8305 774.4401
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=65.6154, expected range: 55.1082 65.9951
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=65.6535, expected range: 55.6851 66.0525
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.5490, expected range: 52.8113 64.4639
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=57.9762, expected range: 53.7229 64.7365
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.2618, expected range: -16.7699 14.9036
Severely_persistent: rms_fgdepar=15.2618, expected range: 0.0000 10.9149
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.0899, expected range: -20.6044 -14.8511
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.0964, expected range: 14.8643 20.6157
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 16632 : out of range
Severe: rms_fgdepar=10.9342, expected range: 0.0000 3.6520
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.3726, expected range: -5.3662 5.3501
Severe: rms_fgdepar=12.3726, expected range: 0.0000 4.7633
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51656 : out of range
Severe: avg_fgdepar=-12.3412, expected range: -18.0469 14.0359
Severe: rms_fgdepar=12.3412, expected range: 0.0000 13.2305
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62420 : out of range
Severe: rms_fgdepar=11.2951, expected range: 0.0000 2.3911
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.7872, expected range: -6.1030 7.1154
Severe: rms_fgdepar=12.8072, expected range: 0.0000 6.3158
MANUAL LAND SYNOP 2M TEMPERATURE (K) 14317 : out of range
Severe: rms_fgdepar=10.3701, expected range: 0.0000 3.1238
METAR 2M TEMPERATURE (K) OIGK : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.3504, expected range: -12.6645 1.9493
Severe: rms_fgdepar=15.8688, expected range: 0.0000 12.5847
BUFR LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
Severe: avg_fgdepar=-12.7581, expected range: -5.3642 5.3595
Severe: rms_fgdepar=12.7729, expected range: 0.0000 4.8009
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.3011, expected range: 0.0046 13.0884
Severe: rms_fgdepar=14.3062, expected range: 0.1385 13.1731
BUFR LAND SYNOP 2M TEMPERATURE (K) 89507 : out of range
Severe: avg_fgdepar=-17.9647, expected range: -12.7586 3.0738
Severe: rms_fgdepar=18.0092, expected range: 0.0000 11.0153
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=109.0000, expected range: 130.5876 135.8568
rh2m
All BUFR LAND SYNOP WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 46.07 102.66