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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-23 12:00

airs
AQUA AIRS RADIANCES CHANNEL 104 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0487, expected range: -0.1313 -0.0869
AQUA AIRS RADIANCES CHANNEL 128 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0160, expected range: -0.1120 -0.1007
Severely_persistent: avg_biascorr=-0.0021, expected range: -0.5887 -0.2828
AQUA AIRS RADIANCES CHANNEL 129 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1243, expected range: -0.2044 -0.1793
Severely_persistent: avg_biascorr=-0.0192, expected range: -0.4908 -0.2529
AQUA AIRS RADIANCES CHANNEL 116 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0671, expected range: -0.1611 -0.1103
AQUA AIRS RADIANCES CHANNEL 69 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4486, expected range: -0.9712 -0.6894
AQUA AIRS RADIANCES CHANNEL 138 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1237, expected range: -0.2896 -0.1068
AQUA AIRS RADIANCES CHANNEL 1869 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1876, expected range: 0.2331 0.2419
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 5 : out of range
Considerable: avg_biascorr=-0.6405, expected range: -0.3500 0.1003
atms
NPP ATMS RADIANCES CHANNEL 9 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5861, expected range: -0.4580 -0.4289
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.5932, expected range: -2.9793 -2.8491
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-3.9170, expected range: -3.3301 -3.2787
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=9.6723, expected range: -1.1683 11.6388
Severely_persistent: rms_fgdepar=9.6723, expected range: 0.0000 11.6567
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severely_persistent: obs_number=0, expected range: 60.31 310.21
All BUFR TEMP DESCENT ALL LAYERS Alantic Tropical are : all data missing
Severely_persistent: obs_number=0, expected range: 80.96 102.64
LAND TEMP WIND VECTOR DIFF (M/S) 25123 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.6881, expected range: 0.0000 10.7948
Severe: avg_pge=0.8378, expected range: -0.4351 0.5650
LAND TEMP WIND VECTOR DIFF (M/S) 31873 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.0434, expected range: 0.0000 9.4934
LAND TEMP TEMPERATURE (K) 25123 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-9.8479, expected range: -3.4781 2.7630
Severe: rms_fgdepar=9.8479, expected range: 0.0000 2.7120
Severe: avg_pge=0.9131, expected range: -0.6409 0.7275
LAND TEMP Q (G/KG) 28695 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.9091, expected range: 0.0000 1.3892
LAND TEMP Q (G/KG) 67197 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.6431, expected range: 0.0000 1.2883
All LAND TEMP ALL LAYERS WMO BLOCK 17 : all data missing
Severe: obs_number=0, expected range: 43.99 260.69
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04220 (2 pressure layers af : out of range
Severe: rms_fgdepar=21.3231, expected range: 0.2808 6.0550
HIGH RESO LAND TEMP TEMPERATURE (K) 71082 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=15.0724, expected range: -1.3171 1.1257
HIGH RESO LAND TEMP TEMPERATURE (K) 71082 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=17.7675, expected range: 0.2746 1.2359
Severe: avg_pge=0.8986, expected range: -0.0472 0.0787
HIGH RESO LAND TEMP Q (G/KG) 57461 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.2202, expected range: -0.8448 4.3369
Severe: rms_fgdepar=6.2373, expected range: 0.0000 4.5026
All BUFR TEMP DESCENT ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 0.00 272.50
LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=603.0000, expected range: 5.2404 130.9608
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=279.0000, expected range: 365.5980 390.0020
amdar
AMDAR WIND VECTOR DIFF (M/S) JP9ZXX79 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.8914, expected range: 0.0000 7.1929
Severe: avg_pge=0.8337, expected range: -0.4159 0.5103
AMDAR TEMPERATURE (K) JP9ZXX79 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=15.1656, expected range: -1.1873 2.3933
Severe: rms_fgdepar=15.1656, expected range: 0.0000 2.3060
Severe: avg_pge=0.9310, expected range: -0.2264 0.3110
AMDAR TEMPERATURE (K) JP9Z5WU9 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.7249, expected range: 0.0000 3.1469
AMDAR TEMPERATURE (K) JP9Z5YW9 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.1482, expected range: 0.0000 1.8634
AMDAR TEMPERATURE (K) JP9Z4YZM PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.4966, expected range: 0.0000 1.7179
AMDAR TEMPERATURE (K) JP9ZYX6Z PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=15.8226, expected range: -0.8703 0.6298
Severe: rms_fgdepar=15.8228, expected range: 0.0000 1.1436
Severe: avg_pge=0.9297, expected range: -0.0325 0.0397
AMDAR TEMPERATURE (K) JP9Z5Y6Z PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.3722, expected range: 0.0000 1.7120
Severe: avg_pge=0.8534, expected range: -0.0177 0.0201
WIGOS AMDAR Q (G/KG) WWJWUUJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8448, expected range: -0.4890 0.7500
ADS-C WIND VECTOR DIFF (M/S) GN0RPDJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.3568, expected range: 0.0000 19.2222
ADS-C WIND VECTOR DIFF (M/S) UKUGD2RA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=36.8048, expected range: 0.0000 17.8295
ADS-C WIND VECTOR DIFF (M/S) GXZAOHRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.7308, expected range: 0.0000 8.5078
ADS-C WIND VECTOR DIFF (M/S) CKEEBURA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3304, expected range: 0.0000 7.6709
ADS-C WIND VECTOR DIFF (M/S) VQOUIJZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.8859, expected range: 0.0000 7.8623
ADS-C WIND VECTOR DIFF (M/S) KHSJNZZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=33.2314, expected range: 0.0000 17.3729
airep
AIREP WIND VECTOR DIFF (M/S) THY84U PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=44.6605, expected range: -0.6068 7.2182
Severe: rms_fgdepar=72.1009, expected range: 0.0000 8.4456
prof
All EUROPEAN WIND PROFILER ALL LAYERS Indian Ocean : all data missing
Severe: obs_number=0, expected range: 122.67 367.33
synop
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.5888, expected range: 35.4645 63.5301
Severely_persistent: rms_fgdepar=54.6188, expected range: 35.9867 63.2732
MANUAL LAND SYNOP RH2M (%) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9999, expected range: -1.0185 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=513.2700, expected range: 362.5397 623.0901
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41998 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8226, expected range: -1.3091 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=607.1367, expected range: -712.6452 1538.7541
Severely_persistent: rms_fgdepar=626.2333, expected range: 0.0000 1578.3698
Severely_persistent: avg_pge=0.9304, expected range: -0.2972 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=423.3793, expected range: 0.0000 204.8305
Severe: avg_pge=0.8665, expected range: -0.7582 0.7500
MANUAL LAND SYNOP RH2M (%) 38750 : out of range
Severe: rms_fgdepar=31.4796, expected range: 0.0000 14.6475
MANUAL LAND SYNOP RH2M (%) 67280 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9776, expected range: -1.9552 0.7500
MANUAL LAND SYNOP RH2M (%) 82882 : out of range
Severe: rms_fgdepar=37.4044, expected range: 9.3267 31.8960
Severe: avg_pge=0.9299, expected range: -0.1629 0.2455
MANUAL LAND SYNOP RH2M (%) 62054 : out of range
Severe: rms_fgdepar=49.3053, expected range: 0.0000 21.6151
MANUAL LAND SYNOP RH2M (%) 42435 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8233, expected range: -1.6203 0.7500
MANUAL LAND SYNOP RH2M (%) 41169 : out of range
Severe: rms_fgdepar=41.0885, expected range: 0.0000 24.3448
Severe: avg_pge=0.9995, expected range: -0.0194 0.0297
MANUAL LAND SYNOP RH2M (%) 82879 : out of range
Severe: rms_fgdepar=37.1317, expected range: 18.7630 34.3713
Severe: avg_pge=0.8531, expected range: -0.4480 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63720 : out of range
Severe: rms_fgdepar=351.6135, expected range: 0.0000 143.1035
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83522 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8094, expected range: 0.6712 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 68906 : out of range
Severe: rms_fgdepar=313.7762, expected range: 0.0000 116.1536
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83698 : out of range
Severe: rms_fgdepar=308.5882, expected range: 0.0000 300.9110
Severe: avg_pge=0.8039, expected range: -1.0434 0.7500
BUFR LAND SYNOP RH2M (%) 51765 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8392, expected range: -1.4487 0.7500
BUFR LAND SYNOP RH2M (%) 28676 : out of range
Severe: rms_fgdepar=32.3082, expected range: 0.0000 14.8088
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8233, expected range: -0.4825 0.7500
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWLD2 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8110, expected range: 0.3636 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRD7 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=823.4440, expected range: 285.5695 1040.7731
Severely_persistent: rms_fgdepar=823.4440, expected range: 278.3191 1054.1535
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4048 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=910.7122, expected range: 352.9356 1463.3084
Severely_persistent: rms_fgdepar=913.9127, expected range: 364.4386 1456.2199
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQNL : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-541.0927, expected range: -654.6045 879.6159
Severely_persistent: rms_fgdepar=541.0927, expected range: 0.0000 520.1892
Severely_persistent: avg_pge=0.8314, expected range: -0.9605 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7DQ4 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8201, expected range: -0.8959 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5BF7 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8186, expected range: -1.5092 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRJH7 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=603.1083, expected range: -568.2899 910.1839
Severe: rms_fgdepar=603.1083, expected range: 0.0000 1009.2968
Severe: avg_pge=0.8461, expected range: -0.8285 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7TN7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-664.5351, expected range: -574.8758 119.6391
Severe: rms_fgdepar=821.5336, expected range: 0.0000 588.9489
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF4C : out of range
Severe: rms_fgdepar=415.4307, expected range: 0.0000 72.6174
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401581 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-582.9579, expected range: -1529.2999 865.7742
Severely_persistent: rms_fgdepar=584.4399, expected range: 0.0000 1411.9781
Severely_persistent: avg_pge=0.9096, expected range: -1.4018 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101849 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=500.8908, expected range: -798.8153 1066.6524
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200186 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.6012, expected range: 0.0000 15.1418
Severe: avg_pge=0.9332, expected range: -0.8474 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301611 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=396.4097, expected range: 0.0000 286.3414
Severe: avg_pge=0.8539, expected range: -0.5028 0.6545
DRIFTING BUOYS SURFACE PRESSURE (PA) 4102632 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=455.9744, expected range: 0.0000 232.7771
Severe: avg_pge=0.8940, expected range: -0.7661 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301603 : out of range
Severe: rms_fgdepar=474.3518, expected range: 0.0000 212.0628
Severe: avg_pge=0.8875, expected range: -0.6833 0.7500
metar
METAR SURFACE PRESSURE (PA) FWCL : out of range
Severe: rms_fgdepar=331.8856, expected range: 0.0000 169.8641
METAR SURFACE PRESSURE (PA) SCQP : out of range
Severe: rms_fgdepar=445.6572, expected range: 0.0000 104.7773
AUTOMATIC METAR SURFACE PRESSURE (PA) ENSL : out of range
Severe: rms_fgdepar=413.6201, expected range: 0.0000 92.5688
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=-776.7184, expected range: -793.9210 -762.2616
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=776.7185, expected range: 762.2574 793.9486
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.8182, expected range: 40.5987 60.8559
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.8265, expected range: 41.8678 60.4000
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=50.8729, expected range: 45.1656 60.4589
BUFR LAND SYNOP SNOW (CM) _MI196EF : out of range
Severe: avg_fgdepar=100.0000, expected range: 100.0000 100.0000
BUFR LAND SYNOP SNOW (CM) _MI196EF : out of range
Severe: rms_fgdepar=100.0000, expected range: 100.0000 100.0000
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.2917, expected range: -23.9367 3.7348
Severely_persistent: rms_fgdepar=15.2917, expected range: 0.0000 23.9367
METAR 2M TEMPERATURE (K) KTLH : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.9075, expected range: -26.1848 8.3856
Severely_persistent: rms_fgdepar=13.9075, expected range: 0.0000 22.4213
LAND TEMP 2M TEMPERATURE (K) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_lsm=0.5462, expected range: 0.5982 0.6550
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=-17.3679, expected range: -22.0445 -7.7455
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=17.4108, expected range: 7.7820 22.0898
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.8589, expected range: -22.6563 -6.0176
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.9824, expected range: 6.0579 22.7137
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.5744, expected range: -15.2846 -4.9235
Severe: rms_fgdepar=14.5744, expected range: 4.6650 15.7641
LAND TEMP 2M TEMPERATURE (K) 83362 : out of range
Severe: avg_fgdepar=14.4945, expected range: -7.2749 9.9592
Severe: rms_fgdepar=14.4945, expected range: 0.0000 7.9219
BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.8294, expected range: -14.3505 -4.9625
Severe: rms_fgdepar=14.8308, expected range: 4.7120 15.3717
BUFR LAND SYNOP 2M TEMPERATURE (K) 98548 : out of range
Severe: rms_fgdepar=10.1857, expected range: 0.2927 5.2507
BUFR LAND SYNOP 2M TEMPERATURE (K) _1701F9F : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=12.5749, expected range: -9.5405 23.5568
BUFR LAND SYNOP 2M TEMPERATURE (K) _1701F9F : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.8329, expected range: 0.0000 20.8888