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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-05-16 12:00

amsua
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0434, expected range: -0.0775 -0.0695
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0725, expected range: 0.1542 0.2071
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5987, expected range: -0.4709 -0.4292
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5631, expected range: -0.5188 -0.4748
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2296, expected range: -0.1727 -0.1373
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1885, expected range: 0.3147 0.3579
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2899, expected range: -0.1608 -0.1350
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7004, expected range: -0.6370 -0.6168
iasi
METOP-C IASI RADIANCES CHANNEL 262 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0514, expected range: 0.0282 0.0407
airs
AQUA AIRS RADIANCES (39 channels affected) : out of range
Considerable: obs_number=8932.0000, expected range: 9710.1913 10677.6911
atms
NPP ATMS RADIANCES CHANNEL 19 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1413, expected range: -0.2056 -0.1786
NPP ATMS RADIANCES CHANNEL 22 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.7267, expected range: 0.6476 0.6678
NPP ATMS RADIANCES CHANNEL 14 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0005, expected range: -0.0202 -0.0164
NPP ATMS RADIANCES CHANNEL 11 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2890, expected range: -0.2392 -0.2235
NPP ATMS RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4911, expected range: -0.4307 -0.3734
NPP ATMS RADIANCES CHANNEL 13 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4428, expected range: -0.3684 -0.3148
NOAA20 ATMS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2549, expected range: -0.2986 -0.2913
NOAA20 ATMS RADIANCES CHANNEL 22 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.5011, expected range: 0.4449 0.4639
Atmospheric Motion Vector
METOP-B AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=559.0000, expected range: 284.5186 420.0597
METEOSAT-11 AMV VIS2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HP : out of range
Considerable: stdev_fgdepar=1.4646, expected range: 1.2017 1.3468
scatt
HY-2B SCATTEROMETER WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=41564.0000, expected range: 48329.9352 63891.0060
Radiosondes
LAND TEMP Q (G/KG) 64500 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.5536, expected range: 0.2086 1.4303
LAND TEMP Q (G/KG) 44373 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=4.0956, expected range: 0.0000 1.8498
LAND TEMP Q (G/KG) 29282 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.2553, expected range: 0.0000 1.0484
LAND TEMP TEMPERATURE (K) 26298 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=8.0452, expected range: 0.0000 3.6669
Severe: avg_pge=0.8486, expected range: -0.8979 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=12.3334, expected range: 1.0111 7.2522
Considerable: avg_fgdepar=9.4144, expected range: 1.1137 5.8783
HIGH RESO LAND TEMP Q (G/KG) 56137 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.8228, expected range: 0.0000 1.1398
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=77.0000, expected range: 162.0765 173.2568
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.5388, expected range: 0.2169 0.8414
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 57245 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=17.2085, expected range: 0.6830 5.1329
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 55591 PRESSURE LAYER 600-90 : out of range
Severe: avg_pge=0.8699, expected range: -1.3813 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 37.76 299.03
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 16.97 336.18
BUFR TEMP DESCENT Q (G/KG) 10739 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.2419, expected range: 0.0000 1.1310
All BUFR TEMP DESCENT ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 34.42 161.92
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=81.0000, expected range: 88.9203 94.1908
Considerable: avg_fgdepar=-1.1901, expected range: -0.6076 0.3858
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) YMVWU1ZA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=22.5252, expected range: 0.0000 10.2787
airep
AIREP WIND VECTOR DIFF (M/S) UAL262 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.7961, expected range: 0.0000 8.3787
AIREP WIND VECTOR DIFF (M/S) AMX003 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.6310, expected range: 0.0000 23.5099
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.9371, expected range: 0.0000 6.7091
synop
MANUAL LAND SYNOP RH2M (%) 41715 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8164, expected range: -1.2993 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 96751 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-639.6514, expected range: -729.0114 -532.5701
Severely_persistent: rms_fgdepar=640.1805, expected range: 531.4705 731.1208
BUFR LAND SYNOP SURFACE PRESSURE (PA) 97072 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-920.3349, expected range: -1208.6670 -617.0529
Severely_persistent: rms_fgdepar=921.0563, expected range: 618.2399 1209.7625
BUFR LAND SYNOP SURFACE PRESSURE (PA) 12805 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=606.4206, expected range: -1476.3034 1886.4315
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
Severe: avg_pge=0.9801, expected range: -0.2996 0.4163
MANUAL LAND SYNOP RH2M (%) 42181 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9503, expected range: -1.4931 0.7500
MANUAL LAND SYNOP RH2M (%) 42452 : out of range
Severe: rms_fgdepar=30.7239, expected range: 0.0000 13.2947
Severe: avg_pge=0.9782, expected range: -0.0094 0.0191
MANUAL LAND SYNOP RH2M (%) 85874 : out of range
Severe: rms_fgdepar=34.5107, expected range: 0.0000 13.5799
MANUAL LAND SYNOP RH2M (%) 42935 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9775, expected range: -0.8285 0.7500
MANUAL LAND SYNOP RH2M (%) 42506 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8151, expected range: -0.0287 0.0387
MANUAL LAND SYNOP RH2M (%) 42379 : out of range
Severe: rms_fgdepar=41.2925, expected range: 0.0000 19.1508
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91601 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=328.6113, expected range: 0.0000 328.3247
Severe: avg_pge=0.8258, expected range: -0.5558 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 44232 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-508.7810, expected range: -831.9916 505.6864
Severe: rms_fgdepar=509.7690, expected range: 0.0000 790.9458
Severe: avg_pge=0.8543, expected range: -1.4373 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76243 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-560.9609, expected range: -621.3953 333.5083
Severe: rms_fgdepar=565.6487, expected range: 0.0000 614.5881
Severe: avg_pge=0.8982, expected range: -1.0869 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42805 : out of range
Severe: avg_fgdepar=701.6338, expected range: -272.5409 252.8920
Severe: rms_fgdepar=701.6338, expected range: 0.0000 215.8904
Severe: avg_pge=0.9168, expected range: -0.7780 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87395 : out of range
Severe: rms_fgdepar=317.5535, expected range: 0.0000 87.4394
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91629 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8457, expected range: -0.7034 0.7500
BUFR LAND SYNOP RH2M (%) 29580 : out of range
Severe: rms_fgdepar=36.6353, expected range: 0.0000 6.6252
BUFR LAND SYNOP RH2M (%) 28863 : out of range
Severe: rms_fgdepar=32.6269, expected range: 0.0000 9.1297
BUFR LAND SYNOP RH2M (%) 28593 : out of range
Severe: rms_fgdepar=30.2919, expected range: 0.0000 13.8335
BUFR LAND SYNOP RH2M (%) 29706 : out of range
Severe: rms_fgdepar=41.3678, expected range: 0.0000 8.5323
Severe: avg_pge=0.8934, expected range: 0.0021 0.0031
BUFR LAND SYNOP RH2M (%) 30439 : out of range
Severe: avg_pge=0.9523, expected range: -0.0682 0.0927
BUFR LAND SYNOP SURFACE PRESSURE (PA) 97460 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8425, expected range: 0.6600 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61461 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=738.9949, expected range: -459.9704 926.5338
Severe: rms_fgdepar=738.9949, expected range: 0.0000 919.9192
Severe: avg_pge=0.9213, expected range: -0.3338 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 34691 : out of range
Severe: rms_fgdepar=557.3108, expected range: 0.0000 158.8395
BUFR LAND SYNOP SURFACE PRESSURE (PA) 76243 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-536.8649, expected range: -865.6603 619.4533
Severe: rms_fgdepar=540.3861, expected range: 0.0000 682.6776
Severe: avg_pge=0.9060, expected range: -0.9436 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
Severe: rms_fgdepar=446.6206, expected range: 83.3372 372.8036
Severe: avg_pge=0.8219, expected range: -0.2705 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23174 : out of range
Severe: rms_fgdepar=350.9361, expected range: 0.0000 135.1481
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=322.9197, expected range: 0.0000 103.3527
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=112.0000, expected range: 125.4805 147.5195
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WDH7560 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=21.3427, expected range: -2.5153 38.0792
Severely_persistent: rms_fgdepar=21.3427, expected range: 0.0000 38.2025
Severely_persistent: avg_pge=0.9138, expected range: -0.6745 0.7500
SHIP SURFACE PRESSURE (PA) VRPN8 : out of range
Severe: avg_fgdepar=675.8388, expected range: -513.9578 479.4262
Severe: rms_fgdepar=876.5411, expected range: 0.0000 374.0409
Severe: avg_pge=0.8260, expected range: -0.9273 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DQ4 : out of range
Severe: avg_fgdepar=514.1887, expected range: -29.1433 627.1935
Severe: rms_fgdepar=514.1887, expected range: 0.0000 632.0560
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YDVUFGG : out of range
Severe: avg_pge=0.8015, expected range: 0.5131 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF4J : out of range
Severe: avg_fgdepar=536.9720, expected range: -728.6409 1249.7029
Severe: rms_fgdepar=538.7776, expected range: 0.0000 1325.5363
Severe: avg_pge=0.8865, expected range: -1.3035 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6200084 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9149, expected range: -0.3377 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204562 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=401.4523, expected range: 0.0000 77.0817
Severe: avg_pge=0.8643, expected range: -0.0823 0.1018
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601637 : out of range
Severe: rms_fgdepar=467.5121, expected range: 0.0000 172.4296
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=427.0000, expected range: 501.4068 650.1488
Considerable: obs_number=1468.0000, expected range: 1589.2581 1826.0752
Considerable: obs_number=377.0000, expected range: 434.7140 491.6389
metar
METAR SURFACE PRESSURE (PA) FQMA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=312.2598, expected range: 0.0000 95.5288
METAR SURFACE PRESSURE (PA) CYLT : out of range
Severe: rms_fgdepar=422.9086, expected range: 0.0000 99.9011
snow
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=66.5938, expected range: 39.8922 71.3027
Severely_persistent: rms_fgdepar=66.5940, expected range: 39.8945 71.3084
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-740.3281, expected range: -748.4992 -710.5036
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=740.3290, expected range: 710.5049 748.4992
BUFR LAND SYNOP SNOW (CM) _MI1D545 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=56.8374, expected range: 49.0297 68.1764
BUFR LAND SYNOP SNOW (CM) _MI1D545 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=56.9328, expected range: 49.0490 68.2271
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=91.5280, expected range: 86.5543 112.2843
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=91.5616, expected range: 86.5631 112.3223
BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-91.9585, expected range: -94.1278 -87.1773
Severely_persistent: rms_fgdepar=91.9589, expected range: 87.1774 94.1279
t2m
METAR 2M TEMPERATURE (K) UGMS : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.5789, expected range: 4.7652 16.3486
Severely_persistent: rms_fgdepar=13.6034, expected range: 4.9519 16.3291
METAR 2M TEMPERATURE (K) VECX : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.6304, expected range: 4.0800 15.4346
BUFR LAND SYNOP 2M TEMPERATURE (K) 78896 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.9415, expected range: -17.4892 -9.5676
Severely_persistent: rms_fgdepar=13.5880, expected range: 9.8164 17.8117
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.2472, expected range: -37.4848 19.3974
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.2537, expected range: 6.9108 18.4632
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8029, expected range: 0.5932 0.8160
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.0493, expected range: -16.7068 -4.3425
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.1719, expected range: 4.7582 16.4648
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.0789, expected range: -14.3724 13.6950
Severe: rms_fgdepar=13.0789, expected range: 0.0000 10.2962
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68408 : out of range
Severe: rms_fgdepar=10.6985, expected range: 0.0000 4.3053
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=284.0000, expected range: 221.4508 255.2551