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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-27 12:00

cris
NPP CRIS RADIANCES CHANNEL 409 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.0430, expected range: 0.0342 0.0400
NOAA20 CRIS RADIANCES CHANNEL 108 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_fgdepar=0.0082, expected range: 0.0171 0.0342
airs
AQUA AIRS RADIANCES CHANNEL 92 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2391, expected range: -0.2047 -0.1905
AQUA AIRS RADIANCES CHANNEL 93 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1095, expected range: -0.0662 -0.0631
AQUA AIRS RADIANCES CHANNEL 98 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1070, expected range: 0.1320 0.1621
AQUA AIRS RADIANCES CHANNEL 104 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0126, expected range: 0.0632 0.0679
Severely_persistent: avg_biascorr=-0.0541, expected range: -0.1109 -0.0869
AQUA AIRS RADIANCES CHANNEL 105 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1090, expected range: 0.1413 0.1511
AQUA AIRS RADIANCES CHANNEL 110 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0009, expected range: 0.0380 0.0444
Severely_persistent: avg_biascorr=-0.0420, expected range: -0.0868 -0.0727
AQUA AIRS RADIANCES CHANNEL 111 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0742, expected range: -0.0406 -0.0371
AQUA AIRS RADIANCES CHANNEL 117 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0136, expected range: 0.0319 0.0386
AQUA AIRS RADIANCES CHANNEL 123 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1177, expected range: -0.0765 -0.0737
Severely_persistent: avg_biascorr=-0.2167, expected range: -0.1705 -0.1181
AQUA AIRS RADIANCES CHANNEL 129 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1348, expected range: -0.0800 -0.0780
Severely_persistent: avg_biascorr=-0.3138, expected range: -0.2300 -0.2079
AQUA AIRS RADIANCES CHANNEL 69 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1722, expected range: -0.2636 -0.2410
AQUA AIRS RADIANCES CHANNEL 116 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0682, expected range: -0.1325 -0.1103
Severely_persistent: avg_biascorr=-0.2054, expected range: -0.1452 -0.1046
AQUA AIRS RADIANCES CHANNEL 99 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1153, expected range: -0.0780 -0.0613
AQUA AIRS RADIANCES CHANNEL 128 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1846, expected range: -0.1094 -0.0853
AQUA AIRS RADIANCES CHANNEL 1869 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1745, expected range: 0.2331 0.2365
AQUA AIRS RADIANCES CHANNEL 138 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0551, expected range: -0.2562 -0.1068
mwhs2
All FY-3C MWHS2 ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 3953.40 26405.93
FY-3D MWHS2 ALLSKY RADIANCES (5 channels affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=12564.0000, expected range: 43426.4773 67010.1109
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 12 : out of range
3 times in the last 10 days for at least one item
Considerable: stdev_norm_fgdepar=0.6051, expected range: 0.6449 0.7238
atms
NPP ATMS RADIANCES CHANNEL 9 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5459, expected range: -0.4580 -0.4126
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3525, expected range: -0.3168 -0.2720
NOAA20 ATMS RADIANCES CHANNEL 8 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7281, expected range: -0.5950 -0.5818
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.5586, expected range: -2.9936 -2.8491
DMSP-17 SSMIS RADIANCES CHANNEL 11 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-0.1929, expected range: -0.1309 -0.0876
Atmospheric Motion Vector
NOAA-18 AVHRR IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Slight: stdev_press=71.8129, expected range: 78.2272 89.8261
HIMAWARI-8 AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-60 : out of range
Slight: stdev_fgdepar=2.2643, expected range: 1.8397 2.1143
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
8 times in the last 10 days for at least one item
Slight: avg_fgdepar=-3.7085, expected range: -3.3301 -3.3301
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
7 times in the last 10 days for at least one item
Slight: stdev_fgdepar=3.3341, expected range: 2.7946 3.3217
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 375.31
LAND TEMP Q (G/KG) 41024 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.4253, expected range: 0.0000 7.7238
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
Severe: obs_number=1751.0000, expected range: 1549.9131 1576.3369
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 50953 PRESSURE LAYER 900-12 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.8524, expected range: 0.0000 5.0793
Severe: avg_pge=0.9060, expected range: -0.6828 0.7500
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 149.18 171.11
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 150.63 167.37
All BUFR TEMP DESCENT ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 83.19 100.24
All BUFR TEMP DESCENT ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 83.63 100.37
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Considerable: obs_number=1133.0000, expected range: 982.6795 1017.3205
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=92.0000, expected range: 155.4407 170.5593
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Considerable: obs_number=95.0000, expected range: 174.0450 197.7328
amdar
WIGOS AMDAR TEMPERATURE (K) LEBUNVZA PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8297, expected range: -1.2105 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) 412UISZA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=15.6772, expected range: 0.0000 6.3668
MODE-S WIND VECTOR DIFF (M/S) MDE407A PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.7819, expected range: 0.0000 6.9112
ADS-C WIND VECTOR DIFF (M/S) WKPIFYBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.4848, expected range: 1.4647 6.5399
ADS-C WIND VECTOR DIFF (M/S) EPSEILRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=22.7983, expected range: -0.6848 7.2342
Severe: rms_fgdepar=28.2746, expected range: 0.0000 9.0788
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 43371 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.4085, expected range: -29.5775 43.0438
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17880 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=507.3796, expected range: 0.0000 788.7188
Severely_persistent: avg_pge=0.8300, expected range: 0.1840 0.7500
MANUAL LAND SYNOP RH2M (%) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9991, expected range: -1.3446 0.7500
BUFR LAND SYNOP RH2M (%) 34394 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9544, expected range: -1.9197 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-689.4363, expected range: -1746.6899 2296.7796
Severely_persistent: rms_fgdepar=689.4363, expected range: 0.0000 1330.1447
AUTOMATIC LAND SYNOP RH2M (%) 35235 : out of range
Severe: rms_fgdepar=32.3364, expected range: 0.0000 13.5028
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=741.2499, expected range: -736.6641 587.8355
Severe: rms_fgdepar=741.4265, expected range: 0.0000 560.8653
Severe: avg_pge=0.9282, expected range: -1.2616 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89059 : out of range
Severe: rms_fgdepar=300.5321, expected range: 0.0000 179.1676
Severe: avg_pge=0.8294, expected range: -0.6231 0.7500
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9973, expected range: -1.3645 0.7500
MANUAL LAND SYNOP RH2M (%) 43415 : out of range
Severe: rms_fgdepar=30.9570, expected range: 2.7464 18.5020
MANUAL LAND SYNOP RH2M (%) 42165 : out of range
Severe: rms_fgdepar=38.6048, expected range: 0.0000 29.2183
Severe: avg_pge=0.9515, expected range: -0.0478 0.0692
MANUAL LAND SYNOP RH2M (%) 42647 : out of range
Severe: rms_fgdepar=38.0523, expected range: 0.0000 18.6702
Severe: avg_pge=0.9060, expected range: -0.0045 0.0115
MANUAL LAND SYNOP RH2M (%) 43338 : out of range
Severe: rms_fgdepar=35.4679, expected range: 4.9327 35.0726
Severe: avg_pge=0.8285, expected range: -0.3350 0.4774
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83364 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=417.7549, expected range: 0.0000 391.1175
Severe: avg_pge=0.8448, expected range: -0.8556 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43318 : out of range
Severe: rms_fgdepar=325.0130, expected range: 0.0000 62.2781
BUFR LAND SYNOP RH2M (%) 36658 : out of range
Severe: rms_fgdepar=31.8538, expected range: 0.0000 6.5518
BUFR LAND SYNOP RH2M (%) 94619 : out of range
Severe: avg_fgdepar=51.8061, expected range: -49.6388 96.2856
Severe: rms_fgdepar=51.8061, expected range: 0.0000 96.2856
Severe: avg_pge=0.9892, expected range: -0.9080 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 85210 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=771.0792, expected range: -1440.1271 1674.4653
Severe: rms_fgdepar=772.8800, expected range: -1164.9763 1544.7355
Severe: avg_pge=0.9180, expected range: -1.4531 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81860 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=539.0069, expected range: 110.2421 199.8542
BUFR LAND SYNOP SURFACE PRESSURE (PA) 98334 : out of range
Severe: rms_fgdepar=615.1381, expected range: 0.0000 126.3654
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13274 : out of range
Severe: rms_fgdepar=303.3271, expected range: 0.0000 163.6300
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13384 : out of range
Severe: rms_fgdepar=346.6449, expected range: 0.0000 279.7005
Severe: avg_pge=0.8739, expected range: -0.3750 0.4761
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48406 : out of range
Severe: rms_fgdepar=336.5918, expected range: 0.0000 149.8151
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: obs_number=423.0000, expected range: 514.1072 517.6428
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8494, expected range: -0.9909 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=687.1155, expected range: 87.7383 1149.6672
Severely_persistent: rms_fgdepar=687.1155, expected range: 88.7393 1148.8634
Severely_persistent: avg_pge=0.8565, expected range: 0.6383 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
Severe: avg_fgdepar=739.1007, expected range: 267.7106 1313.0122
Severe: rms_fgdepar=740.0168, expected range: 228.7594 1370.7345
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5LH3 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=669.8287, expected range: -317.4333 518.0610
Severe: rms_fgdepar=669.8287, expected range: 0.0000 470.8683
Severe: avg_pge=0.8520, expected range: -0.7079 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JQF : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-544.6874, expected range: -1135.6064 217.1216
Severe: rms_fgdepar=544.6874, expected range: 0.0000 1052.7467
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7KMK : out of range
Severe: rms_fgdepar=486.8176, expected range: 0.0000 222.1145
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WMKQ : out of range
Severe: rms_fgdepar=473.8687, expected range: 0.0000 109.1640
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PHET : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=513.1096, expected range: -260.1224 404.0943
Severe: rms_fgdepar=513.1096, expected range: -371.4682 549.8621
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) GNF8EBW : out of range
Severe: avg_fgdepar=27.9057, expected range: -17.4311 28.4832
Severe: rms_fgdepar=27.9378, expected range: 0.0000 31.9067
Severe: avg_pge=0.9357, expected range: -1.1959 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401581 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-529.7475, expected range: -1661.1208 1033.2908
Severely_persistent: rms_fgdepar=530.5022, expected range: 0.0000 1329.0010
Severely_persistent: avg_pge=0.9008, expected range: -0.7637 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101849 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8470, expected range: -1.2651 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3401599 : out of range
Severe: rms_fgdepar=461.3506, expected range: 0.0000 170.9049
metar
METAR SURFACE PRESSURE (PA) HTMH : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=968.8141, expected range: 702.3612 1005.9417
Severely_persistent: rms_fgdepar=968.8141, expected range: 703.0780 1005.6396
METAR SURFACE PRESSURE (PA) KWRI : out of range
Severe: rms_fgdepar=364.0079, expected range: 0.0000 205.6061
METAR SURFACE PRESSURE (PA) HEAT : out of range
Severe: rms_fgdepar=448.7926, expected range: 0.0000 155.4855
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=-782.4748, expected range: -804.0034 -750.4812
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=782.4756, expected range: 751.0743 803.6133
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.8000, expected range: 30.9835 69.2197
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.3393, expected range: 36.3425 65.5885
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.3000, expected range: 40.8556 63.1462
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
29 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.5955, expected range: 41.7847 64.3029
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.5112, expected range: -18.0746 -8.7299
Severely_persistent: rms_fgdepar=13.5112, expected range: 8.7299 18.0746
METAR 2M TEMPERATURE (K) KTLH : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.1393, expected range: -25.7974 2.7077
Severely_persistent: rms_fgdepar=15.7919, expected range: 2.4024 22.1443
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.6689, expected range: -21.3954 -7.2558
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.7177, expected range: 7.2790 21.4557
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.6543, expected range: -19.6198 -5.3487
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.7592, expected range: 5.3360 19.7579
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51747 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.2939, expected range: -20.8780 19.4172
Severe: rms_fgdepar=12.2939, expected range: 0.8973 12.5678
METAR 2M TEMPERATURE (K) KMUO : out of range
Severe: rms_fgdepar=12.2642, expected range: 1.2502 6.6248
METAR 2M TEMPERATURE (K) UGMS : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.1616, expected range: 6.5574 13.0104
Severe: rms_fgdepar=14.2105, expected range: 6.5064 13.1670
rh2m
BUFR LAND SYNOP RH2M (%) _MF1D22E : out of range
Severe: rms_fgdepar=32.8130, expected range: 0.0000 17.6322