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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-09 00:00

amsua
METOP-B AMSUA RADIANCES (10 channels affected) : out of range
Considerable: obs_number=6017.0000, expected range: 10481.3075 17599.5675
cris
NOAA20 CRIS RADIANCES CHANNEL 83 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0011, expected range: 0.0110 0.0177
NOAA20 CRIS RADIANCES CHANNEL 87 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0907, expected range: 0.1001 0.1091
NOAA20 CRIS RADIANCES CHANNEL 124 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0510, expected range: -0.0411 -0.0341
NOAA20 CRIS RADIANCES CHANNEL 125 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0986, expected range: -0.0901 -0.0849
NOAA20 CRIS RADIANCES CHANNEL 110 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0717, expected range: 0.0808 0.0830
NOAA20 CRIS RADIANCES CHANNEL 69 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2514.0000, expected range: 2088.1831 2422.0669
NOAA20 CRIS RADIANCES CHANNEL 70 : out of range
Considerable: obs_number=2491.0000, expected range: 2088.5088 2389.8662
NOAA20 CRIS RADIANCES CHANNEL 71 : out of range
Considerable: obs_number=2514.0000, expected range: 2098.7142 2417.7858
NOAA20 CRIS RADIANCES CHANNEL 73 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2482.0000, expected range: 2105.3301 2361.9199
NOAA20 CRIS RADIANCES CHANNEL 113 : out of range
Considerable: obs_number=2517.0000, expected range: 2098.6695 2420.4555
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
Considerable: obs_number=3563.0000, expected range: 4361.7566 5656.9934
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
Considerable: obs_number=3578.0000, expected range: 4353.0628 5662.0622
DMSP-17 SSMIS RADIANCES CHANNEL 8 : out of range
Slight: avg_norm_fgdepar=0.0729, expected range: -0.0364 0.0507
gpsro
All COSMIC2-E6 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 1263.88 2572.87
COSMIC2-E2 GPSRO SETTING HEIGHT 22-24 KM : out of range
Considerable: avg_norm_fgdepar=0.3156, expected range: -0.0387 0.1836
COSMIC2-E2 GPSRO RISING HEIGHT 42-44 KM : out of range
Slight: stdev_norm_fgdepar=0.8478, expected range: 0.4158 0.7540
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10130-10131 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: stdev_fgdepar=6.4325, expected range: 4.8505 5.3656
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 2540-2541 (HPA) : out of range
3 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=5.5645, expected range: 2.7784 4.5851
Radiosondes
LAND TEMP TEMPERATURE (K) 78384 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=9.5394, expected range: 0.0000 3.9533
LAND TEMP TEMPERATURE (K) 78384 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-18.0914, expected range: -1.5679 1.5987
Severe: avg_pge=0.9557, expected range: -0.1847 0.2262
LAND TEMP WIND VECTOR DIFF (M/S) 61687 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.3648, expected range: 0.0000 63.9449
LAND TEMP WIND VECTOR DIFF (M/S) 34247 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.6862, expected range: 0.2784 4.8038
LAND TEMP WIND VECTOR DIFF (M/S) 34467 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.4694, expected range: 0.0000 7.5307
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.6452, expected range: 2.6139 6.1767
Considerable: obs_number=170.0000, expected range: 83.0980 135.4020
All LAND TEMP ALL LAYERS WMO BLOCK 73 : all data missing
Severe: obs_number=0, expected range: 0.00 267.45
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.3052, expected range: 0.2097 1.8782
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=140.0000, expected range: 60.9802 68.7976
HIGH RESO LAND TEMP Q (G/KG) 94312 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2559, expected range: 0.3420 1.2345
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
Considerable: obs_number=477.0000, expected range: 597.3887 679.1113
Considerable: obs_number=697.0000, expected range: 580.5792 642.6708
amdar
WIGOS AMDAR Q (G/KG) 3PTUOGRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.2216, expected range: 0.0000 1.8025
ADS-C WIND VECTOR DIFF (M/S) LGHEIERA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.2121, expected range: 0.0000 11.3950
ADS-C WIND VECTOR DIFF (M/S) THOVEGRA PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.5437, expected range: 0.0000 9.1207
synop
MANUAL LAND SYNOP RH2M (%) 42770 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9940, expected range: 0.4029 0.7500
MANUAL LAND SYNOP RH2M (%) 42963 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.8274, expected range: -29.2931 80.8646
Severely_persistent: rms_fgdepar=54.8274, expected range: 0.0000 80.8646
Severely_persistent: avg_pge=1.0000, expected range: -1.8454 0.7500
MANUAL LAND SYNOP RH2M (%) 42473 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.3023, expected range: 4.8940 89.2628
Severely_persistent: rms_fgdepar=50.3023, expected range: 4.8940 89.2628
Severely_persistent: avg_pge=0.9985, expected range: -0.2250 0.7500
MANUAL LAND SYNOP RH2M (%) 42176 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9770, expected range: -0.7775 0.7500
MANUAL LAND SYNOP RH2M (%) 42849 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9983, expected range: -1.6107 0.7500
MANUAL LAND SYNOP RH2M (%) 42459 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.2533, expected range: 28.5445 62.8448
Severely_persistent: rms_fgdepar=53.2533, expected range: 28.5445 62.8448
BUFR LAND SYNOP SURFACE PRESSURE (PA) 51818 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=470.9259, expected range: 0.0000 254.0089
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16239 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8657, expected range: -1.2495 0.7500
MANUAL LAND SYNOP RH2M (%) 62420 : out of range
Severe: rms_fgdepar=35.1132, expected range: 0.0000 9.9865
MANUAL LAND SYNOP RH2M (%) 42740 : out of range
Severe: avg_pge=0.9959, expected range: -0.0369 0.0511
MANUAL LAND SYNOP RH2M (%) 42441 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9970, expected range: -1.9246 0.7500
MANUAL LAND SYNOP RH2M (%) 42744 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=52.0828, expected range: -30.8057 63.6354
Severe: rms_fgdepar=52.0828, expected range: 0.0000 63.6354
MANUAL LAND SYNOP RH2M (%) 42237 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9809, expected range: -1.7760 0.7500
MANUAL LAND SYNOP RH2M (%) 43158 : out of range
Severe: avg_pge=0.8299, expected range: -0.6937 0.7500
MANUAL LAND SYNOP RH2M (%) 42639 : out of range
Severe: avg_pge=0.8406, expected range: -0.0383 0.0530
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 64040 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8599, expected range: -1.7153 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82571 : out of range
Severe: rms_fgdepar=338.8643, expected range: 0.0000 264.5171
Severe: avg_pge=0.8126, expected range: -0.9498 0.7500
BUFR LAND SYNOP RH2M (%) 08350 : out of range
Severe: rms_fgdepar=32.9117, expected range: 0.0000 14.4419
BUFR LAND SYNOP RH2M (%) 71555 : out of range
Severe: avg_fgdepar=51.6953, expected range: -27.8297 34.7746
Severe: rms_fgdepar=51.6953, expected range: 0.0000 27.0491
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13622 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8284, expected range: -0.5666 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71506 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=352.4258, expected range: 0.0000 138.2361
Severe: avg_pge=0.8831, expected range: -0.6581 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04178 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8750, expected range: -0.6824 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16459 : out of range
Severe: rms_fgdepar=389.9712, expected range: 0.0000 187.8907
Severe: avg_pge=0.8620, expected range: -0.2846 0.3564
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=210.0000, expected range: 297.2980 338.7020
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=96.0000, expected range: 103.1836 111.4164
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) SJA4RSK : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-553.6127, expected range: -728.2351 640.4752
Severely_persistent: rms_fgdepar=553.9573, expected range: -574.7537 710.8586
Severely_persistent: avg_pge=0.9060, expected range: -1.4694 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VEP717 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8347, expected range: 0.0779 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CKR759 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8728, expected range: -0.2772 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDN2 : out of range
Severe: avg_fgdepar=677.7562, expected range: -94.7748 109.0611
Severe: rms_fgdepar=817.4950, expected range: 0.0000 112.6066
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6AN5 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8179, expected range: -0.6198 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRFX6 : out of range
Severe: avg_pge=0.8030, expected range: -0.6883 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ONGA : out of range
Severe: avg_fgdepar=-577.6791, expected range: -1014.1244 364.3630
Severe: rms_fgdepar=577.6791, expected range: 0.0000 965.4992
Severe: avg_pge=0.8401, expected range: -1.0129 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200189 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8595, expected range: -0.6008 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) 4600076 : out of range
Severe: rms_fgdepar=301.9406, expected range: 0.0000 167.3710
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601522 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8238, expected range: -0.1987 0.2243
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701568 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8518, expected range: -0.7702 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401698 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=380.8528, expected range: 0.0000 148.2602
Severe: avg_pge=0.8516, expected range: -0.7109 0.7500
metar
METAR SURFACE PRESSURE (PA) OPMJ : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-685.6717, expected range: -1250.4167 966.1132
Severely_persistent: rms_fgdepar=692.8824, expected range: -811.6413 1183.4698
Severely_persistent: avg_pge=0.8514, expected range: -1.0879 0.7500
snow
MANUAL LAND SYNOP SNOW (CM) 29900 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=70.8038, expected range: 59.3268 75.9644
Severely_persistent: rms_fgdepar=70.8038, expected range: 59.3268 75.9644
MANUAL LAND SYNOP SNOW (CM) 16021 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.8044, expected range: 48.9559 61.3847
Severely_persistent: rms_fgdepar=54.8044, expected range: 48.9559 61.3847
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=85.3418, expected range: 63.8306 92.5135
Severely_persistent: rms_fgdepar=85.3418, expected range: 63.8306 92.5135
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-71.4763, expected range: -87.4075 -43.8774
Severely_persistent: rms_fgdepar=71.4763, expected range: 46.1414 87.9194
ROCOB TEMP SNOW (CM) 63301060 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.2065, expected range: 11.4767 65.3104
Severely_persistent: rms_fgdepar=53.2065, expected range: 11.4767 65.3104
ROCOB TEMP SNOW (CM) 63309115 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-58.6125, expected range: -71.9933 -59.8106
Severely_persistent: rms_fgdepar=58.6125, expected range: 59.8106 71.9933
BUFR LAND SYNOP SNOW (CM) 29900 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=70.8038, expected range: 59.3268 75.9644
Severely_persistent: rms_fgdepar=70.8038, expected range: 59.3268 75.9644
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=85.7267, expected range: 64.5174 92.8781
Severely_persistent: rms_fgdepar=85.7267, expected range: 64.5174 92.8781
BUFR LAND SYNOP SNOW (CM) 01025 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-52.4889, expected range: -66.9085 -33.3119
Severely_persistent: rms_fgdepar=52.4889, expected range: 33.3119 66.9085
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-71.3172, expected range: -87.2862 -43.8505
Severely_persistent: rms_fgdepar=71.3172, expected range: 46.0919 87.8125
MANUAL LAND SYNOP SNOW (CM) 36091 : out of range
Severe: rms_fgdepar=31.6402, expected range: 0.0000 4.5749
MANUAL LAND SYNOP SNOW (CM) 30252 : out of range
Severe: rms_fgdepar=17.5005, expected range: 1.2079 8.0491
MANUAL LAND SYNOP SNOW (CM) 24449 : out of range
Severe: rms_fgdepar=19.5715, expected range: 0.0000 8.6166
ROCOB TEMP SNOW (CM) 63308330 : out of range
Severe: rms_fgdepar=16.0000, expected range: 0.0000 9.0581
ROCOB TEMP SNOW (CM) 63304685 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.0707, expected range: -4.0898 5.8974
BUFR LAND SYNOP SNOW (CM) 01450 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.6245, expected range: 0.0000 4.2591
BUFR LAND SYNOP SNOW (CM) 15118 : out of range
Severe: rms_fgdepar=16.0800, expected range: 0.0000 4.3161
BUFR LAND SYNOP SNOW (CM) : out of range
Severe: avg_fgdepar=-75.6051, expected range: -111.4637 -91.2067
Severe: rms_fgdepar=466.4058, expected range: 500.6589 538.5005
t2m
METAR 2M TEMPERATURE (K) KNID : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.9812, expected range: -17.6621 -1.7202
Severely_persistent: rms_fgdepar=14.7337, expected range: 3.3670 18.2959
LAND TEMP 2M TEMPERATURE (K) 61687 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.4363, expected range: -27.6725 5.2792
Severely_persistent: rms_fgdepar=15.4363, expected range: 0.0000 27.6725
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02031 : out of range
Severe: rms_fgdepar=11.4575, expected range: 0.3560 2.2463
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02161 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.2963, expected range: 0.2074 2.6977
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51133 : out of range
Severe: avg_fgdepar=13.1433, expected range: -11.5906 15.3577
Severe: rms_fgdepar=13.1433, expected range: 0.0000 11.7946
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02038 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4969, expected range: 0.2834 2.4965
MANUAL LAND SYNOP 2M TEMPERATURE (K) 43133 : out of range
Severe: avg_fgdepar=12.6763, expected range: -9.8577 11.5792
Severe: rms_fgdepar=12.6763, expected range: 0.0000 7.2534
METAR 2M TEMPERATURE (K) SKBG : out of range
Severe: rms_fgdepar=10.0193, expected range: 0.1233 3.8586
BUFR LAND SYNOP 2M TEMPERATURE (K) 02801 : out of range
Severe: rms_fgdepar=10.1041, expected range: 0.3280 3.6958
BUFR LAND SYNOP 2M TEMPERATURE (K) 43133 : out of range
Severe: avg_fgdepar=12.6263, expected range: -8.1851 12.3719
Severe: rms_fgdepar=12.6263, expected range: 0.0000 8.3736
BUFR LAND SYNOP 2M TEMPERATURE (K) 01047 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.1520, expected range: 0.0000 2.2620
BUFR LAND SYNOP 2M TEMPERATURE (K) 01058 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.3005, expected range: -1.8541 1.6170
Severe: rms_fgdepar=13.9992, expected range: 0.0000 4.9460
BUFR LAND SYNOP 2M TEMPERATURE (K) 01199 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.1699, expected range: -1.7651 1.4459
Severe: rms_fgdepar=13.2100, expected range: 0.0000 2.5017
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=134.0000, expected range: 81.6994 115.4256