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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-18 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 133 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2386, expected range: 0.2779 0.3289
METOP-B IASI RADIANCES CHANNEL 131 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3356, expected range: 0.3647 0.3882
METOP-B IASI RADIANCES CHANNEL 386 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0535, expected range: 0.0886 0.1353
METOP-C IASI RADIANCES CHANNEL 386 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.0320, expected range: 0.0913 0.1536
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=-0.2190, expected range: -0.2047 -0.1921
AQUA AIRS RADIANCES CHANNEL 93 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0855, expected range: -0.0662 -0.0543
AQUA AIRS RADIANCES CHANNEL 99 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0322, expected range: 0.0522 0.0565
AQUA AIRS RADIANCES CHANNEL 104 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0401, expected range: 0.0632 0.0793
AQUA AIRS RADIANCES CHANNEL 111 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0567, expected range: -0.0406 -0.0228
AQUA AIRS RADIANCES CHANNEL 116 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0103, expected range: 0.0552 0.0655
AQUA AIRS RADIANCES CHANNEL 117 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0034, expected range: 0.0319 0.0387
AQUA AIRS RADIANCES CHANNEL 123 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0933, expected range: -0.0765 -0.0602
AQUA AIRS RADIANCES CHANNEL 128 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0335, expected range: 0.0691 0.0885
Severely_persistent: avg_biascorr=-0.0311, expected range: -0.1372 -0.1007
AQUA AIRS RADIANCES CHANNEL 129 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1110, expected range: -0.0800 -0.0548
Severely_persistent: avg_biascorr=-0.1434, expected range: -0.2189 -0.1793
AQUA AIRS RADIANCES CHANNEL 138 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0257, expected range: -0.1652 -0.1068
atms
NPP ATMS RADIANCES CHANNEL 9 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5287, expected range: -0.4580 -0.4555
NOAA20 ATMS RADIANCES CHANNEL 11 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4328, expected range: -0.3783 -0.3761
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.6406, expected range: -3.1183 -2.8491
DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=5.0368, expected range: 3.6878 4.2196
gpsro
COSMIC2-E1 GPSRO SETTING HEIGHT 30-32 KM : out of range
Slight: stdev_norm_fgdepar=1.4361, expected range: 1.0381 1.3488
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
19 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0091, expected range: 0.0065 0.0068
Severely_persistent: avg_fgdepar=-0.0234, expected range: -0.0346 -0.0324
AURA OMI OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
Considerable: obs_number=6466.0000, expected range: 17477.7654 23924.1096
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severely_persistent: obs_number=0, expected range: 120.31 159.69
LAND TEMP Q (G/KG) 40375 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.8092, expected range: 0.0415 1.7555
LAND TEMP Q (G/KG) 41024 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-12.9746, expected range: -6.4728 6.7859
Severe: rms_fgdepar=13.0265, expected range: 0.0000 6.8629
LAND TEMP Q (G/KG) 41217 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=8.9665, expected range: -8.2945 8.7775
Severe: rms_fgdepar=9.4743, expected range: 0.0000 7.1546
HIGH RESO LAND TEMP Q (G/KG) 57494 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.3293, expected range: 0.1983 1.9282
HIGH RESO LAND TEMP Q (G/KG) 43371 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.1584, expected range: 0.0764 1.6661
HIGH RESO LAND TEMP TEMPERATURE (K) 59316 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.3256, expected range: 0.3423 2.0875
HIGH RESO LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-9.1104, expected range: -25.0549 13.3030
Severe: rms_fgdepar=9.1104, expected range: 0.0000 24.5874
Severe: avg_pge=0.9085, expected range: -1.5304 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04270 PRESSURE LAYER 900-12 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8936, expected range: -0.6496 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Severe: obs_number=166.0000, expected range: 92.8377 99.1623
All HIGH RESO SEA TEMP ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 46.10 443.71
All HIGH RESO SEA TEMP ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 46.10 443.71
LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: rms_fgdepar=1.8395, expected range: 1.2607 1.6372
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=122.0000, expected range: 4.4750 33.1524
amdar
AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 262.6759
WIGOS AMDAR WIND VECTOR DIFF (M/S) OIHGUUBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.6197, expected range: 0.1472 6.3791
ADS-C WIND VECTOR DIFF (M/S) RF0DPMJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.4785, expected range: 0.0000 26.4357
airep
AIREP WIND VECTOR DIFF (M/S) NBT602 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=28.3474, expected range: 0.0000 16.2640
AIREP WIND VECTOR DIFF (M/S) UAL5 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.3070, expected range: 0.0000 11.3195
AIREP WIND VECTOR DIFF (M/S) RJA264D PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.8156, expected range: 2.4875 7.6015
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 02918 PRESSURE LAYER 900-1200 : out of range
Severe: rms_fgdepar=15.6249, expected range: 0.0000 14.5388
Severe: avg_pge=0.8938, expected range: -0.6068 0.7500
JAPANESE WIND PROFILER VECTOR DIFF (M/S) 47836 (2 pressure layers affe : out of range
Severe: rms_fgdepar=17.0378, expected range: 0.0000 6.2917
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Slight: obs_number=277.0000, expected range: 0.0000 143.2326
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 15420 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=16.3440, expected range: 0.0000 14.2749
Severe: avg_pge=0.8641, expected range: -0.6008 0.7500
All LAND PILOT ALL LAYERS North West Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 413.24
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81833 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8126, expected range: 0.6376 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=509.7653, expected range: 387.0683 561.9467
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47831 : out of range
Severe: rms_fgdepar=381.0271, expected range: 0.0000 134.1107
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47823 : out of range
Severe: rms_fgdepar=315.4349, expected range: 0.0000 83.0036
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47836 : out of range
Severe: rms_fgdepar=646.8034, expected range: 0.0000 80.9401
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47837 : out of range
Severe: rms_fgdepar=437.9015, expected range: 0.0000 72.9635
All AUTOMATIC LAND SYNOP WMO BLOCK 17 : all data missing
Severe: obs_number=0, expected range: 51.49 284.27
All AUTOMATIC LAND SYNOP WMO BLOCK 18 : all data missing
Severe: obs_number=0, expected range: 33.55 178.82
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41715 : out of range
Severe: avg_fgdepar=-519.3921, expected range: -240.5072 176.9402
Severe: rms_fgdepar=520.4301, expected range: 0.0000 172.4484
Severe: avg_pge=0.8913, expected range: -0.3879 0.5151
MANUAL LAND SYNOP RH2M (%) 62131 : out of range
Severe: avg_fgdepar=56.3414, expected range: -17.8662 21.6829
Severe: rms_fgdepar=56.3414, expected range: 0.0000 19.6860
Severe: avg_pge=0.9987, expected range: 0.0003 0.0055
MANUAL LAND SYNOP RH2M (%) 62124 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8829, expected range: -0.0204 0.0337
MANUAL LAND SYNOP RH2M (%) 63756 : out of range
Severe: rms_fgdepar=33.0257, expected range: 0.0000 16.7511
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13601 : out of range
Severe: avg_pge=0.8496, expected range: 0.3406 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 70232 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=314.7449, expected range: 31.7449 255.0603
Severe: avg_pge=0.8160, expected range: 0.4700 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08594 : out of range
Severe: rms_fgdepar=619.4447, expected range: 0.0000 160.4470
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33777 : out of range
Severe: rms_fgdepar=563.6302, expected range: 0.0000 97.5776
BUFR LAND SYNOP RH2M (%) 71450 : out of range
Severe: rms_fgdepar=31.8166, expected range: 0.0000 16.2590
BUFR LAND SYNOP RH2M (%) 81643 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8436, expected range: -1.5416 0.7500
BUFR LAND SYNOP RH2M (%) 71066 : out of range
Severe: rms_fgdepar=33.5881, expected range: 0.0000 15.6525
BUFR LAND SYNOP RH2M (%) 71437 : out of range
Severe: rms_fgdepar=35.2675, expected range: 0.0000 19.6760
BUFR LAND SYNOP RH2M (%) 68338 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=46.8614, expected range: 0.0000 30.0991
Severe: avg_pge=0.9707, expected range: -0.0157 0.0257
BUFR LAND SYNOP RH2M (%) 72458 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.8651, expected range: 0.0000 14.7977
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLJ4 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1287.7317, expected range: 517.2452 1924.4316
Severely_persistent: rms_fgdepar=1287.7317, expected range: 537.7033 1909.6857
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6WK7 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1087.4099, expected range: -734.4370 1298.5774
Severely_persistent: rms_fgdepar=1087.4099, expected range: 0.0000 1298.1770
Severely_persistent: avg_pge=0.9002, expected range: -1.0130 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3ETR7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=750.8253, expected range: 272.3246 1088.4381
Severely_persistent: rms_fgdepar=750.8253, expected range: 272.3246 1088.4381
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WTED : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=517.2831, expected range: -1400.5500 1140.3097
Severely_persistent: rms_fgdepar=520.6048, expected range: -1108.7367 1391.3730
Severely_persistent: avg_pge=0.8046, expected range: -1.5170 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7DQ4 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8947, expected range: -0.9759 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PHDL : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.0021, expected range: 0.0000 11.8230
Severe: avg_pge=0.8372, expected range: -0.8862 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAQU5 : out of range
Severe: rms_fgdepar=489.8086, expected range: 0.0000 300.2522
Severe: avg_pge=0.8065, expected range: -0.5479 0.6936
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3EFK6 : out of range
Severe: avg_fgdepar=-1292.5881, expected range: -577.0874 580.8968
Severe: rms_fgdepar=1292.5881, expected range: 0.0000 461.6912
Severe: avg_pge=0.9321, expected range: -0.8641 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROO6 : out of range
Severe: avg_fgdepar=823.8485, expected range: 476.1767 1303.0306
Severe: rms_fgdepar=825.7094, expected range: 485.6019 1296.7746
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=617.0709, expected range: 110.3399 953.9589
Severe: rms_fgdepar=617.0709, expected range: 111.3919 953.1322
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WACW : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=772.2145, expected range: 563.0604 826.8045
Severe: rms_fgdepar=772.2145, expected range: 563.1511 826.9085
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501670 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=523.5290, expected range: -1003.1709 890.4060
Severely_persistent: rms_fgdepar=536.7603, expected range: -667.7520 989.3302
Severely_persistent: avg_pge=0.8738, expected range: -1.3001 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802592 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=383.9589, expected range: 0.0000 108.1978
Severe: avg_pge=0.8285, expected range: -0.0558 0.0641
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101623 : out of range
Severe: avg_pge=0.8421, expected range: -1.1610 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2302614 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=600.0776, expected range: 0.0000 174.7967
Severe: avg_pge=0.9045, expected range: -0.3397 0.4415
metar
METAR SURFACE PRESSURE (PA) FQXA : out of range
Severe: rms_fgdepar=377.4955, expected range: 57.5546 200.6022
METAR SURFACE PRESSURE (PA) RJFG : out of range
Severe: rms_fgdepar=437.2849, expected range: 0.0000 90.3215
AUTOMATIC METAR SURFACE PRESSURE (PA) RJKA : out of range
Severe: rms_fgdepar=412.5392, expected range: 0.0000 139.5244
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=-786.5052, expected range: -778.2097 -769.6345
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=786.5056, expected range: 769.6343 778.2101
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.8182, expected range: 32.5715 62.6069
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.8915, expected range: 34.0363 61.8106
t2m
METAR 2M TEMPERATURE (K) KTLH : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.1094, expected range: -23.4192 10.4148
Severely_persistent: rms_fgdepar=14.1094, expected range: 0.0000 22.6916
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.2917, expected range: -21.9536 -12.2890
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.3844, expected range: 12.3479 21.9506
MANUAL LAND SYNOP 2M TEMPERATURE (K) 82791 : out of range
Severe: rms_fgdepar=10.9469, expected range: 0.2964 2.5708
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=3077.0000, expected range: 5732.4225 6224.9525
Considerable: obs_number=1138.0000, expected range: 2142.6965 2419.1785
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 68331 : out of range
Severe: rms_fgdepar=31.4674, expected range: 0.0000 17.0185
METAR RH2M (%) CYOJ : out of range
Severe: rms_fgdepar=34.6940, expected range: 6.4067 18.7391
BUFR LAND SYNOP RH2M (%) 63870 : out of range
Severe: rms_fgdepar=34.3799, expected range: 0.0000 18.5617
BUFR LAND SYNOP RH2M (%) _MI1FEBF : out of range
Severe: rms_fgdepar=37.6902, expected range: 0.0000 21.2802