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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-15 00:00

amsua
NOAA-19 AMSUA RADIANCES (6 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=5687.0000, expected range: 6764.5797 9549.5453
METOP-C AMSUA RADIANCES (10 channels affected) : out of range
Considerable: obs_number=9185.0000, expected range: 13850.8834 22649.3666
iasi
METOP-A IASI RADIANCES CHANNEL 236 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0028, expected range: 0.0038 0.0102
METOP-B IASI RADIANCES CHANNEL 236 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0416, expected range: 0.0528 0.0582
METOP-C IASI RADIANCES CHANNEL 236 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0074, expected range: 0.0044 0.0086
cris
NPP CRIS RADIANCES CHANNEL 124 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0694, expected range: -0.0618 -0.0548
NPP CRIS RADIANCES CHANNEL 85 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0702, expected range: -0.0658 -0.0610
NPP CRIS RADIANCES CHANNEL 86 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0482, expected range: -0.0407 -0.0357
NOAA20 CRIS RADIANCES CHANNEL 82 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0191, expected range: 0.0253 0.0295
NOAA20 CRIS RADIANCES CHANNEL 85 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0230, expected range: 0.0275 0.0295
NOAA20 CRIS RADIANCES CHANNEL 111 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0626, expected range: 0.0682 0.0732
NOAA20 CRIS RADIANCES CHANNEL 120 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0640, expected range: -0.0587 -0.0542
NOAA20 CRIS RADIANCES CHANNEL 123 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0335, expected range: -0.0232 -0.0224
NOAA20 CRIS RADIANCES CHANNEL 124 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0550, expected range: -0.0411 -0.0400
NOAA20 CRIS RADIANCES CHANNEL 125 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1029, expected range: -0.0901 -0.0883
NOAA20 CRIS RADIANCES CHANNEL 138 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1142, expected range: -0.1037 -0.1003
NOAA20 CRIS RADIANCES CHANNEL 143 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1087, expected range: -0.0925 -0.0902
NOAA20 CRIS RADIANCES CHANNEL 86 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0455, expected range: 0.0525 0.0531
NOAA20 CRIS RADIANCES CHANNEL 110 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0692, expected range: 0.0808 0.0816
airs
AQUA AIRS RADIANCES CHANNEL 1520 : out of range
Severe: avg_biascorr=-0.0418, expected range: -0.0294 -0.0129
Slight: stdev_fgdepar=0.9922, expected range: 0.8930 0.9237
AQUA AIRS RADIANCES (31 channels affected) : out of range
Considerable: obs_number=862.0000, expected range: 980.2687 1311.4012
AQUA AIRS RADIANCES CHANNEL 1740 : out of range
Considerable: stdev_fgdepar=1.3188, expected range: 1.1366 1.2442
AQUA AIRS RADIANCES CHANNEL 1565 : out of range
Slight: stdev_fgdepar=1.1444, expected range: 1.0500 1.0629
AQUA AIRS RADIANCES CHANNEL 1869 : out of range
Slight: stdev_fgdepar=0.2576, expected range: 0.2367 0.2443
gpsro
COSMIC2-E3 GPSRO RISING HEIGHT 48-50 KM : out of range
Slight: stdev_norm_fgdepar=0.7868, expected range: 0.3656 0.6711
Atmospheric Motion Vector
GOES-16 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: stdev_fgdepar=1.3731, expected range: 0.8912 1.1072
Slight: avg_fgdepar=1.6125, expected range: 1.1948 1.4544
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-8.3940, expected range: -7.5458 -7.5413
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10130-10131 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=6.4903, expected range: 4.6022 5.3656
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 95 : all data missing
Severely_persistent: obs_number=0, expected range: 108.36 134.44
LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.1604, expected range: 0.0000 4.5855
Severe: avg_pge=0.8903, expected range: -0.2951 0.4236
LAND TEMP TEMPERATURE (K) 32477 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.6183, expected range: 0.0000 3.1965
Severe: avg_pge=0.8368, expected range: -0.7202 0.7500
LAND TEMP TEMPERATURE (K) 91408 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=10.0850, expected range: 0.0000 1.6251
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.0358, expected range: 0.1425 1.7005
LAND TEMP Q (G/KG) 48900 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.9851, expected range: 0.0000 1.4551
LAND TEMP WIND VECTOR DIFF (M/S) 32389 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=21.8215, expected range: -0.7837 7.5201
Severe: rms_fgdepar=23.1856, expected range: 0.0000 8.2521
Severe: avg_pge=0.8174, expected range: -0.4391 0.7500
HIGH RESO LAND TEMP Q (G/KG) 56492 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.2154, expected range: 0.0000 0.9983
HIGH RESO LAND TEMP Q (G/KG) 08430 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.1535, expected range: 0.0000 1.1193
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 15 : all data missing
Severe: obs_number=0, expected range: 40.53 144.72
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 48 : all data missing
Severe: obs_number=0, expected range: 133.74 163.98
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=9.2992, expected range: 2.0270 6.7204
amdar
WIGOS AMDAR Q (G/KG) FESEOHBA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.4726, expected range: 0.0000 2.7424
Severe: avg_pge=0.8890, expected range: -0.0065 0.0138
WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8889, expected range: -0.5948 0.7500
ADS-C WIND VECTOR DIFF (M/S) TR21FRBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.8351, expected range: 0.0000 15.1907
ADS-C WIND VECTOR DIFF (M/S) 3FIK0XBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.9622, expected range: 0.0000 6.8234
ADS-C WIND VECTOR DIFF (M/S) NTNICIRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.2962, expected range: 0.0000 19.8445
ADS-C WIND VECTOR DIFF (M/S) PGAYEWZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.1306, expected range: 0.0000 9.9127
WIGOS AMDAR WIND VECTOR DIFF (M/S) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1967.0000, expected range: 147.7682 555.8568
airep
AIREP WIND VECTOR DIFF (M/S) UAL90 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.7509, expected range: 0.0000 20.0278
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06234 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=15.7000, expected range: 0.0000 8.0559
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 94926 PRESSURE LAYER 300-600 : out of range
Severe: avg_fgdepar=20.0658, expected range: -5.3542 13.5210
Severe: rms_fgdepar=20.8983, expected range: 0.0000 14.8566
Severe: avg_pge=0.8523, expected range: -0.7421 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42339 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=22.2207, expected range: -2.2853 10.7992
Severe: rms_fgdepar=22.5344, expected range: 0.0000 12.4922
Severe: avg_pge=0.8300, expected range: -0.6192 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89879 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-788.0527, expected range: -1677.7599 1524.6638
Severely_persistent: rms_fgdepar=788.0856, expected range: -1103.8875 1503.9926
Severely_persistent: avg_pge=0.9422, expected range: -1.6718 0.7500
MANUAL LAND SYNOP RH2M (%) 42969 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=46.0510, expected range: 0.0000 28.5683
Severely_persistent: avg_pge=0.9975, expected range: -0.0163 0.0272
MANUAL LAND SYNOP RH2M (%) 42395 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=55.6933, expected range: -18.4104 32.5685
Severe: rms_fgdepar=55.6933, expected range: 0.0000 28.9409
Severe: avg_pge=0.9999, expected range: -0.0016 0.0080
MANUAL LAND SYNOP RH2M (%) 42709 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=51.6802, expected range: -20.0236 50.9322
Severe: rms_fgdepar=51.6802, expected range: 0.0000 50.9322
Severe: avg_pge=0.9935, expected range: -1.2410 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42262 : out of range
Severe: avg_fgdepar=-603.8904, expected range: -144.9050 138.0059
Severe: rms_fgdepar=603.8904, expected range: 0.0000 109.5277
Severe: avg_pge=0.9058, expected range: -0.9433 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83033 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8280, expected range: -1.1839 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42026 : out of range
Severe: avg_fgdepar=-688.1964, expected range: -449.6088 392.2107
Severe: rms_fgdepar=688.1964, expected range: 0.0000 285.7190
Severe: avg_pge=0.8706, expected range: -0.7442 0.7500
BUFR LAND SYNOP RH2M (%) 28806 : out of range
Severe: rms_fgdepar=34.9137, expected range: 0.0000 13.4835
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16190 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=320.8871, expected range: 0.0000 246.5579
Severe: avg_pge=0.8772, expected range: -0.7862 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23174 : out of range
Severe: rms_fgdepar=338.2734, expected range: 0.0000 163.1016
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23205 : out of range
Severe: rms_fgdepar=596.5060, expected range: 0.0000 79.8524
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08345 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=331.5007, expected range: 0.0000 83.8163
Severe: avg_pge=0.8657, expected range: -0.1291 0.1686
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WC5932 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-606.4980, expected range: -454.2452 658.4272
Severely_persistent: rms_fgdepar=614.8559, expected range: 0.0000 485.5570
Severely_persistent: avg_pge=0.8536, expected range: -0.8502 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK64 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8982, expected range: -0.7373 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRBH6 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9150, expected range: -0.1556 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) J8PE3 : out of range
Severe: rms_fgdepar=521.9440, expected range: 0.0000 204.4567
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7A2564 : out of range
Severe: avg_fgdepar=596.3417, expected range: -572.2372 322.7770
Severe: rms_fgdepar=596.3417, expected range: 0.0000 556.6232
Severe: avg_pge=0.8404, expected range: -1.1857 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ONKE : out of range
Severe: rms_fgdepar=491.2898, expected range: 0.0000 247.7358
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501741 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8587, expected range: -1.2895 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8278, expected range: -1.4597 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1401721 : out of range
Severe: rms_fgdepar=549.8682, expected range: 67.8935 699.6848
Severe: avg_pge=0.8913, expected range: 0.3208 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101602 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=338.6967, expected range: 0.0000 137.4969
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601624 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-541.8604, expected range: -392.2494 345.3344
Severe: rms_fgdepar=554.7453, expected range: -276.4473 374.2920
Severe: avg_pge=0.8933, expected range: -0.8342 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401694 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8317, expected range: -0.9762 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4400857 : out of range
Severe: avg_fgdepar=-505.9784, expected range: -48.9856 42.9370
Severe: rms_fgdepar=522.8804, expected range: 0.0000 60.6185
Severe: avg_pge=0.8801, expected range: -0.0510 0.0565
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=113.0000, expected range: 97.0000 97.0000
metar
METAR SURFACE PRESSURE (PA) OPMJ : out of range
45 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-1084.2637, expected range: -2351.6822 1020.4502
Severely_persistent: rms_fgdepar=1087.0778, expected range: 0.0000 2305.1723
METAR SURFACE PRESSURE (PA) KVPS : out of range
Severe: rms_fgdepar=319.2169, expected range: 0.0000 125.7017
METAR SURFACE PRESSURE (PA) GMMZ : out of range
Severe: rms_fgdepar=388.0764, expected range: 0.0000 111.9268
snow
MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=95.5873, expected range: 73.5075 102.3653
Severely_persistent: rms_fgdepar=95.5873, expected range: 73.5075 102.3653
ROCOB TEMP SNOW (CM) 63301060 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.1810, expected range: 40.9076 69.5105
Severely_persistent: rms_fgdepar=57.1810, expected range: 40.9076 69.5105
ROCOB TEMP SNOW (CM) 63309115 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-61.2649, expected range: -76.1219 -47.8927
Severely_persistent: rms_fgdepar=61.2649, expected range: 47.8927 76.1219
BUFR LAND SYNOP SNOW (CM) 01192 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-60.4413, expected range: -84.1506 -19.0389
Severely_persistent: rms_fgdepar=60.4936, expected range: 19.0484 84.1638
BUFR LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=95.8704, expected range: 74.0255 102.6514
Severely_persistent: rms_fgdepar=95.8704, expected range: 74.0255 102.6514
BUFR LAND SYNOP SNOW (CM) 01025 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-79.8218, expected range: -78.5375 -43.9940
Severely_persistent: rms_fgdepar=79.8218, expected range: 43.9940 78.5375
MANUAL LAND SYNOP SNOW (CM) 23914 : out of range
Severe: rms_fgdepar=16.6386, expected range: 2.2160 4.7149
t2m
LAND TEMP 2M TEMPERATURE (K) 61687 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.0912, expected range: -25.1903 2.9902
Severely_persistent: rms_fgdepar=16.0912, expected range: 0.0000 25.1903
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 56106 : out of range
Severe: avg_fgdepar=13.1037, expected range: -1.2439 15.8440
Severe: rms_fgdepar=13.1037, expected range: 0.0000 15.2820
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51379 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.3381, expected range: 0.1859 16.9757
Severe: rms_fgdepar=13.3381, expected range: 0.1859 16.9757
MANUAL LAND SYNOP 2M TEMPERATURE (K) 28806 : out of range
Severe: rms_fgdepar=10.0719, expected range: 0.0000 3.2598
MANUAL LAND SYNOP 2M TEMPERATURE (K) 28967 : out of range
Severe: rms_fgdepar=10.1608, expected range: 0.0672 4.4506
METAR 2M TEMPERATURE (K) KGXF : out of range
Severe: rms_fgdepar=10.0338, expected range: 0.0418 3.9409
METAR 2M TEMPERATURE (K) SESM : out of range
Severe: avg_fgdepar=19.5466, expected range: -3.4632 4.9991
Severe: rms_fgdepar=19.5466, expected range: 0.2688 4.1661
Severe: avg_est_pge=0.8058, expected range: -0.0677 0.1823
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 71200 : out of range
Severe: rms_fgdepar=35.1678, expected range: 0.0000 16.1078
BUFR LAND SYNOP RH2M (%) 08090 : out of range
Severe: rms_fgdepar=31.4036, expected range: 1.2279 18.4646