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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-21 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 83 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.5049, expected range: 0.4376 0.4687
METOP-B IASI RADIANCES (21 channels affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2671, expected range: 0.1724 0.2078
METOP-B IASI RADIANCES CHANNEL 38 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1727, expected range: 0.0069 0.0954
METOP-B IASI RADIANCES CHANNEL 59 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3680, expected range: 0.1408 0.2567
METOP-B IASI RADIANCES CHANNEL 63 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2007, expected range: -0.0248 0.0903
METOP-B IASI RADIANCES CHANNEL 178 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1679, expected range: -0.0392 0.0718
METOP-B IASI RADIANCES CHANNEL 61 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2707, expected range: 0.2993 0.3261
METOP-B IASI RADIANCES CHANNEL 79 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2678, expected range: 0.3115 0.3285
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=0.2314, expected range: 0.2779 0.2986
METOP-B IASI RADIANCES CHANNEL 66 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2764, expected range: 0.3036 0.3216
METOP-B IASI RADIANCES CHANNEL 111 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2241, expected range: 0.2489 0.2708
METOP-B IASI RADIANCES CHANNEL 131 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3238, expected range: 0.3647 0.3772
METOP-B IASI RADIANCES CHANNEL 189 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2684, expected range: 0.2914 0.3155
METOP-B IASI RADIANCES CHANNEL 386 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0429, expected range: 0.0886 0.1292
METOP-C IASI RADIANCES CHANNEL 57 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2849, expected range: 0.3216 0.3253
METOP-C IASI RADIANCES CHANNEL 63 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2807, expected range: 0.3140 0.3196
METOP-C IASI RADIANCES CHANNEL 282 : out of range
Considerable: avg_fgdepar=0.0069, expected range: -0.0112 0.0002
METOP-C IASI RADIANCES CHANNEL 66 : out of range
Considerable: stdev_fgdepar=0.3475, expected range: 0.3732 0.4227
METOP-C IASI RADIANCES CHANNEL 83 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.3272, expected range: 0.3517 0.3869
METOP-C IASI RADIANCES CHANNEL 133 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.2908, expected range: 0.3196 0.3617
airs
AQUA AIRS RADIANCES CHANNEL 93 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0931, expected range: -0.0662 -0.0536
AQUA AIRS RADIANCES CHANNEL 99 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0290, expected range: 0.0522 0.0616
AQUA AIRS RADIANCES CHANNEL 104 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0346, expected range: 0.0632 0.0741
AQUA AIRS RADIANCES CHANNEL 111 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0516, expected range: -0.0406 -0.0286
AQUA AIRS RADIANCES CHANNEL 116 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0224, expected range: 0.0552 0.0674
AQUA AIRS RADIANCES CHANNEL 117 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0118, expected range: 0.0319 0.0476
AQUA AIRS RADIANCES CHANNEL 123 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0949, expected range: -0.0765 -0.0625
AQUA AIRS RADIANCES CHANNEL 128 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0296, expected range: 0.0691 0.1055
Severely_persistent: avg_biascorr=-0.0383, expected range: -0.1315 -0.1007
Severely_persistent: avg_biascorr=-0.1766, expected range: -0.4050 -0.2828
AQUA AIRS RADIANCES CHANNEL 129 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1327, expected range: -0.2141 -0.1793
Severely_persistent: avg_biascorr=-0.1466, expected range: -0.3837 -0.2529
AQUA AIRS RADIANCES CHANNEL 138 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0213, expected range: -0.1980 -0.1068
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.6278, expected range: -3.0154 -2.8491
DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=4.7406, expected range: 3.7814 4.2196
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=3.6681, expected range: 2.9653 3.3217
Radiosondes
All LAND TEMP ALL LAYERS WMO BLOCK 70 : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 254.27
LAND TEMP Q (G/KG) 40437 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.4120, expected range: 0.0000 1.7746
LAND TEMP TEMPERATURE (K) 26298 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.6051, expected range: 0.0000 2.3610
Severe: avg_pge=0.8777, expected range: -0.1326 0.1948
LAND TEMP WIND VECTOR DIFF (M/S) 32618 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.1420, expected range: 0.0000 8.2533
LAND TEMP WIND VECTOR DIFF (M/S) 24507 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=21.6699, expected range: -1.1739 7.1242
Severe: avg_pge=0.8275, expected range: -0.3303 0.5496
LAND TEMP WIND VECTOR DIFF (M/S) 24507 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=24.9331, expected range: 0.0000 7.6270
HIGH RESO LAND TEMP Q (G/KG) 94332 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.7915, expected range: 0.0000 1.3907
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=379.0000, expected range: 276.5362 294.2138
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 43 : all data missing
Severe: obs_number=0, expected range: 33.64 275.12
amdar
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-7.5264, expected range: -9.3835 0.6302
Severely_persistent: rms_fgdepar=7.5423, expected range: 0.0000 9.1855
WIGOS AMDAR WIND VECTOR DIFF (M/S) J3QTO3ZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.7654, expected range: 0.0000 7.9615
WIGOS AMDAR WIND VECTOR DIFF (M/S) EH5SSIJA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=15.6222, expected range: 0.0000 6.2237
MODE-S WIND VECTOR DIFF (M/S) M3E5BD0 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.5679, expected range: 0.0000 6.2176
MODE-S WIND VECTOR DIFF (M/S) M86F426 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7365, expected range: 0.0000 6.5634
ADS-C WIND VECTOR DIFF (M/S) RF0DPMJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.0967, expected range: 0.0000 23.6831
ADS-C WIND VECTOR DIFF (M/S) LE5CTRJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7963, expected range: 0.3158 7.1409
airep
AIREP WIND VECTOR DIFF (M/S) QTR6W PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7908, expected range: 0.0000 8.2693
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=517.2382, expected range: 369.5613 620.0827
AUTOMATIC LAND SYNOP RH2M (%) 60693 : out of range
Severe: rms_fgdepar=32.2492, expected range: 0.0000 12.4203
Severe: rms_fgdepar=33.9271, expected range: 0.0000 10.8008
AUTOMATIC LAND SYNOP RH2M (%) 60694 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=44.4258, expected range: 0.0000 18.5234
Severe: avg_pge=0.8460, expected range: 0.0000 0.0060
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
Severe: avg_fgdepar=-51.0712, expected range: -78.8805 55.9841
Severe: rms_fgdepar=51.1619, expected range: 0.0000 75.6626
Severe: avg_pge=0.9973, expected range: -1.2118 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67143 : out of range
Severe: rms_fgdepar=673.6475, expected range: 0.0000 161.0910
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42807 : out of range
Severe: rms_fgdepar=303.0819, expected range: 0.0000 118.4058
MANUAL LAND SYNOP Z (M) 38734 : out of range
Severe: avg_pge=0.9762, expected range: -0.0347 0.0469
BUFR LAND SYNOP RH2M (%) 94764 : out of range
Severe: rms_fgdepar=41.8296, expected range: 0.0000 22.1104
Severe: avg_pge=0.8885, expected range: -0.0005 0.0065
BUFR LAND SYNOP RH2M (%) 24826 : out of range
Severe: rms_fgdepar=49.7161, expected range: 0.0000 24.9956
BUFR LAND SYNOP RH2M (%) _170B147 : out of range
Severe: avg_pge=0.9632, expected range: -0.1124 0.1736
BUFR LAND SYNOP RH2M (%) 24908 : out of range
Severe: rms_fgdepar=30.4911, expected range: 0.0000 13.4426
BUFR LAND SYNOP SURFACE PRESSURE (PA) 62305 : out of range
Severe: rms_fgdepar=324.7863, expected range: 0.0000 188.6588
Severe: avg_pge=0.8014, expected range: -0.7412 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25956 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=550.3309, expected range: 0.0000 280.0265
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42027 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=606.5697, expected range: 0.0000 147.6541
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91939 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=509.4488, expected range: -198.0199 147.2425
Severe: rms_fgdepar=561.2558, expected range: 0.0000 194.7907
Severe: avg_pge=0.8325, expected range: -0.7021 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=2168.0000, expected range: 3418.8992 3767.6008
Considerable: obs_number=1278.0000, expected range: 2191.4076 2437.3424
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYGR2 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-542.7620, expected range: -792.4527 -428.1301
Severely_persistent: rms_fgdepar=544.9825, expected range: 428.7617 792.0562
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=518.0425, expected range: 0.0000 1300.2775
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WACW : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=764.9814, expected range: 482.5800 962.7215
Severely_persistent: rms_fgdepar=765.0223, expected range: 482.8469 962.5844
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWLD2 : out of range
Severe: avg_pge=0.8055, expected range: 0.4084 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROO5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-819.4835, expected range: -153.7711 162.5241
Severe: rms_fgdepar=819.4835, expected range: 0.0000 182.5790
Severe: avg_pge=0.8912, expected range: -0.3809 0.4524
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRD7 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=554.7710, expected range: 375.4419 982.1162
Severe: rms_fgdepar=554.7710, expected range: 371.0430 995.1936
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAON8 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8789, expected range: -1.2701 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401581 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-543.3749, expected range: -1047.8277 781.6335
Severely_persistent: rms_fgdepar=543.9857, expected range: -777.4014 1046.7729
Severely_persistent: avg_pge=0.9079, expected range: -1.3024 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2302614 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=637.8871, expected range: -579.2732 840.1533
Severely_persistent: avg_pge=0.9016, expected range: -1.3449 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101849 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=446.2967, expected range: 0.0000 210.7675
Severely_persistent: avg_pge=0.8347, expected range: -0.3828 0.4827
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203627 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=758.4285, expected range: -25.5038 89.0243
Severe: rms_fgdepar=760.6116, expected range: 0.0000 88.6399
Severe: avg_pge=0.9173, expected range: -0.1049 0.1397
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=-785.0607, expected range: -791.2560 -760.4173
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=785.0608, expected range: 760.4175 791.2561
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.4118, expected range: 44.2058 59.2287
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.6260, expected range: 44.8190 60.0357
BUFR LAND SYNOP SNOW (CM) _MI1812F : out of range
Severe: avg_fgdepar=52.0000, expected range: 26.7944 40.0018
BUFR LAND SYNOP SNOW (CM) _MI1812F : out of range
Severe: rms_fgdepar=52.0865, expected range: 26.4180 41.0010
BUFR LAND SYNOP SNOW (CM) _MI1A45F : out of range
Severe: rms_fgdepar=52.8795, expected range: 15.2186 52.7647
t2m
METAR 2M TEMPERATURE (K) OIGK : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.4132, expected range: -15.3347 -4.5105
Severely_persistent: rms_fgdepar=14.4132, expected range: 4.9549 15.4680
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=-12.0621, expected range: -21.1883 -11.0266
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=12.0763, expected range: 11.1053 21.1863
rh2m
METAR RH2M (%) MMCN : out of range
Severe: rms_fgdepar=34.0260, expected range: 0.3183 19.4439