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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-30 12:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1102, expected range: 0.1615 0.1876
iasi
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3977, expected range: -0.3632 -0.3428
METOP-B IASI RADIANCES CHANNEL 163 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2425, expected range: 0.2658 0.2770
METOP-B IASI RADIANCES CHANNEL 170 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1894, expected range: 0.2102 0.2298
METOP-B IASI RADIANCES CHANNEL 1513 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1629, expected range: -0.1438 -0.1205
METOP-C IASI RADIANCES CHANNEL 3248 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0101, expected range: 0.0199 0.0542
METOP-C IASI RADIANCES CHANNEL 89 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2677, expected range: -0.2125 -0.2019
METOP-C IASI RADIANCES CHANNEL 144 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1713, expected range: 0.1943 0.2018
METOP-C IASI RADIANCES CHANNEL 183 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1636, expected range: 0.1896 0.2059
METOP-C IASI RADIANCES CHANNEL 189 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1438, expected range: 0.1601 0.1714
METOP-C IASI RADIANCES CHANNEL 195 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1078, expected range: 0.1249 0.1273
METOP-C IASI RADIANCES (13 channels affected) : out of range
Severe: obs_number=515.0000, expected range: 14.4398 173.7813
cris
NOAA20 CRIS RADIANCES (12 channels affected) : out of range
Considerable: obs_number=220.0000, expected range: 0.0000 109.4557
atms
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=499.0000, expected range: 0.0430 12.1138
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0051, expected range: 0.0044 0.0047
gpsro
COSMIC2-E1 GPSRO SETTING (23 impact heights affected) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=2274.0000, expected range: 2744.1524 4050.3182
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.0795, expected range: -4.6651 15.8954
Severely_persistent: rms_fgdepar=6.0795, expected range: 0.0000 15.9423
LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.4249, expected range: -6.0026 16.9332
Severely_persistent: rms_fgdepar=7.4249, expected range: 0.0000 16.7181
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 509.33
LAND TEMP Q (G/KG) 41217 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.6675, expected range: -7.1070 11.0021
Severe: rms_fgdepar=7.8054, expected range: 0.0000 10.5170
HIGH RESO LAND TEMP TEMPERATURE (K) 27707 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.9978, expected range: 0.0000 5.5808
Severe: avg_pge=0.8954, expected range: -0.6844 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=91.0000, expected range: 155.8413 168.6587
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Severe: obs_number=382.0000, expected range: 281.0745 291.4255
HIGH RESO LAND TEMP Q (G/KG) 29698 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.1328, expected range: -0.1074 5.1426
Severe: rms_fgdepar=6.1682, expected range: 0.0000 5.7022
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 130.14 154.44
amdar
WIGOS AMDAR TEMPERATURE (K) EU1126 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.8285, expected range: 0.0000 1.7269
WIGOS AMDAR TEMPERATURE (K) EU8556 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.0863, expected range: 0.0000 1.9554
WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=6.3640, expected range: -6.2973 6.5234
Severe: rms_fgdepar=6.3640, expected range: 1.2361 5.0087
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.0989, expected range: -10.8567 2.4219
Severe: rms_fgdepar=6.3742, expected range: 0.0000 10.8504
WIGOS AMDAR Q (G/KG) 3OXWUWJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-6.6264, expected range: -11.2897 9.0026
Severe: rms_fgdepar=6.6555, expected range: 0.0000 9.7222
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 880.1946
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76519 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=983.6499, expected range: -1799.3788 2476.3404
Severely_persistent: rms_fgdepar=983.6499, expected range: 0.0000 2230.1595
Severely_persistent: avg_pge=0.9209, expected range: -1.2747 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=749.6587, expected range: 659.6908 1076.4736
Severely_persistent: rms_fgdepar=751.5364, expected range: 667.4018 1071.5772
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81996 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8298, expected range: 0.3685 0.7500
MANUAL LAND SYNOP Z (M) 67461 : out of range
Severe: rms_fgdepar=207.0021, expected range: 0.0000 103.7029
MANUAL LAND SYNOP Z (M) 38869 : out of range
Severe: avg_pge=0.9684, expected range: -0.2819 0.3844
MANUAL LAND SYNOP RH2M (%) 42170 : out of range
Severe: avg_fgdepar=53.7642, expected range: -16.8537 33.7819
Severe: rms_fgdepar=53.7642, expected range: 0.0000 33.4497
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9685, expected range: -1.6724 0.7500
MANUAL LAND SYNOP RH2M (%) 44341 : out of range
Severe: rms_fgdepar=32.9789, expected range: 0.0000 10.0967
MANUAL LAND SYNOP RH2M (%) 44352 : out of range
Severe: rms_fgdepar=47.5571, expected range: 0.0000 46.6611
Severe: avg_pge=0.9939, expected range: -0.2036 0.2563
MANUAL LAND SYNOP RH2M (%) 62016 : out of range
Severe: avg_pge=0.9917, expected range: -0.7140 0.7500
MANUAL LAND SYNOP RH2M (%) 61096 : out of range
Severe: rms_fgdepar=37.5614, expected range: 0.0000 21.4191
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60690 : out of range
Severe: rms_fgdepar=313.4349, expected range: 0.0000 119.5444
Severe: avg_pge=0.8202, expected range: -0.3958 0.4773
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 88963 : out of range
Severe: rms_fgdepar=321.3607, expected range: 0.0000 176.8845
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 85247 : out of range
Severe: avg_pge=0.8384, expected range: -1.0173 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 36859 : out of range
Severe: rms_fgdepar=401.8939, expected range: 0.0000 227.1809
BUFR LAND SYNOP RH2M (%) 36736 : out of range
Severe: rms_fgdepar=42.1621, expected range: -22.4498 32.4146
Severe: avg_pge=0.9999, expected range: -0.0740 0.0935
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29752 : out of range
Severe: rms_fgdepar=415.4170, expected range: 0.0000 142.8556
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3581 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=873.7465, expected range: -622.3128 1090.7440
Severely_persistent: rms_fgdepar=873.7465, expected range: 0.0000 1095.5852
Severely_persistent: avg_pge=0.8854, expected range: -0.9198 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7UX2 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=515.7419, expected range: -1053.5845 1568.3682
Severely_persistent: rms_fgdepar=562.8100, expected range: -1050.4277 1567.2714
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
31 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=955.1710, expected range: 321.6296 1321.6290
Severely_persistent: rms_fgdepar=955.1710, expected range: 320.3119 1325.0655
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=623.5179, expected range: 89.6967 1257.2135
Severely_persistent: rms_fgdepar=623.5179, expected range: 89.6967 1257.2135
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5UO7 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1097.2854, expected range: 685.6304 1301.0143
Severely_persistent: rms_fgdepar=1097.2854, expected range: 685.6304 1301.0143
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FSA9 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-543.8340, expected range: -781.2087 -187.6799
Severely_persistent: rms_fgdepar=543.8340, expected range: 188.1247 800.8531
Severely_persistent: avg_pge=0.8179, expected range: 0.6745 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE37 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8160, expected range: -0.2095 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KAFK : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=528.2049, expected range: -662.1514 888.3335
Severe: rms_fgdepar=528.6737, expected range: 0.0000 753.1247
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF3N : out of range
Severe: rms_fgdepar=344.3726, expected range: 0.0000 113.2033
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9230, expected range: 0.4693 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101655 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=569.0988, expected range: -345.5124 587.3290
Severely_persistent: rms_fgdepar=570.6313, expected range: 0.0000 554.3352
Severely_persistent: avg_pge=0.9017, expected range: -1.0285 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101513 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8436, expected range: -0.9942 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204577 : out of range
Severe: rms_fgdepar=364.4019, expected range: 0.0000 200.2905
metar
METAR SURFACE PRESSURE (PA) OIBA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=451.3274, expected range: 0.0000 154.9172
METAR SURFACE PRESSURE (PA) OIGK : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=668.1385, expected range: -695.3783 706.7439
Severe: rms_fgdepar=669.7543, expected range: 0.0000 610.7098
Severe: avg_pge=0.8163, expected range: -1.0151 0.7500
METAR SURFACE PRESSURE (PA) SKCO : out of range
Severe: rms_fgdepar=333.5221, expected range: 0.0000 99.5799
METAR SURFACE PRESSURE (PA) DNJO : out of range
Severe: rms_fgdepar=433.5014, expected range: 0.0000 205.6843
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=-772.8570, expected range: -774.3671 -771.7578
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=772.8571, expected range: 771.7579 774.3672
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.8571, expected range: 52.3577 67.6170
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.1509, expected range: 52.7314 67.8019
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.3529, expected range: 51.9362 64.5826
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.8590, expected range: 53.2315 64.5923
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=53.0000, expected range: -3.0510 64.3288
Severe: rms_fgdepar=53.7587, expected range: 2.2201 62.6757
MANUAL LAND SYNOP SNOW (CM) 37524 : out of range
Severe: avg_fgdepar=62.5000, expected range: 16.7066 43.8648
Severe: rms_fgdepar=62.5180, expected range: 12.7233 50.6796
t2m
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=-17.9409, expected range: -20.6286 -14.9099
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=17.9434, expected range: 14.9229 20.6397
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.4514, expected range: -19.6998 16.0102
Severe: rms_fgdepar=15.4514, expected range: 0.0000 14.9951
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42170 : out of range
Severe: rms_fgdepar=10.0907, expected range: 0.0000 5.1859
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89664 : out of range
Severe: avg_fgdepar=12.6614, expected range: 0.1696 9.3244
Severe: rms_fgdepar=12.6614, expected range: 0.5869 9.1303
METAR 2M TEMPERATURE (K) OIGK : out of range
Severe: avg_fgdepar=-15.8491, expected range: -11.8330 1.3063
Severe: rms_fgdepar=16.2968, expected range: 0.0004 11.9551
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=109.0000, expected range: 130.2124 136.2320
rh2m
MANUAL LAND SYNOP RH2M (%) 43342 : out of range
Severe: rms_fgdepar=38.0654, expected range: 0.0000 18.3596