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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-07 12:00

amsua
NOAA-19 AMSUA RADIANCES (6 channels affected) : out of range
Considerable: obs_number=5428.0000, expected range: 6501.1172 9736.2945
iasi
METOP-C IASI RADIANCES CHANNEL 241 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0154, expected range: 0.0202 0.0229
METOP-A IASI RADIANCES CHANNEL 310 : out of range
Considerable: avg_fgdepar=-0.1152, expected range: -0.0798 -0.0098
METOP-B IASI RADIANCES CHANNEL 566 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.3906, expected range: 0.2986 0.3592
cris
NOAA20 CRIS RADIANCES CHANNEL 134 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1254, expected range: -0.1142 -0.1094
NOAA20 CRIS RADIANCES CHANNEL 83 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0015, expected range: 0.0110 0.0231
NOAA20 CRIS RADIANCES CHANNEL 143 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1030, expected range: -0.0925 -0.0888
NOAA20 CRIS RADIANCES CHANNEL 110 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0723, expected range: 0.0808 0.0832
Atmospheric Motion Vector
METEOSAT-11 AMV CLOUDY WV1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=5920.0000, expected range: 4037.7445 5280.0055
GOES-16 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=4478.0000, expected range: 2440.3006 3616.6994
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=23573.0000, expected range: 18685.4493 22371.6095
Radiosondes
LAND TEMP Q (G/KG) 72357 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.4635, expected range: 0.0000 1.3360
LAND TEMP Q (G/KG) 72456 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.3182, expected range: 0.0000 1.5108
LAND TEMP Q (G/KG) 98618 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.7280, expected range: 0.1088 2.5523
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=141.0000, expected range: 62.4354 67.0646
HIGH RESO LAND TEMP Q (G/KG) 72265 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.9930, expected range: 0.0000 1.5987
HIGH RESO LAND TEMP Q (G/KG) 72558 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.9102, expected range: 0.0000 0.9666
BUFR TEMP DESCENT Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 478.6903
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=361.0000, expected range: 440.4412 471.8088
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=310.0000, expected range: 331.7716 370.4784
amdar
ADS-C TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : missing
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 2.8105 241.9938
WIGOS AMDAR WIND VECTOR DIFF (M/S) NXFGUUBA (2 pressure layers affecte : out of range
Severe: rms_fgdepar=15.1799, expected range: 0.0000 7.3878
WIGOS AMDAR WIND VECTOR DIFF (M/S) NXFGUUBA PRESSURE LAYER 900-1200 (H : out of range
Severe: avg_fgdepar=22.1558, expected range: -2.7386 9.3165
ADS-C WIND VECTOR DIFF (M/S) VAVYB4JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1222, expected range: 0.0000 16.3437
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 41718 PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8533, expected range: 0.1220 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 42591 PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8595, expected range: -0.6083 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18152 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8732, expected range: -1.4427 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17847 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8848, expected range: -1.5029 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=515.4285, expected range: 315.4367 779.9835
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9679, expected range: -1.6634 0.7500
MANUAL LAND SYNOP RH2M (%) 42273 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9651, expected range: -1.4743 0.7500
MANUAL LAND SYNOP RH2M (%) 42674 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9718, expected range: 0.3900 0.7500
MANUAL LAND SYNOP RH2M (%) 42459 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.4261, expected range: 25.5779 76.3165
Severely_persistent: rms_fgdepar=50.4261, expected range: 25.5779 76.3165
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40030 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=353.5422, expected range: 0.0000 266.5953
Severely_persistent: avg_pge=0.8045, expected range: -0.7928 0.7500
BUFR LAND SYNOP RH2M (%) 86850 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-68.2716, expected range: -76.1493 -34.2326
Severely_persistent: rms_fgdepar=68.3834, expected range: 35.5436 75.4595
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29471 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=881.2043, expected range: -1465.2438 2053.5355
Severely_persistent: rms_fgdepar=881.2043, expected range: 0.0000 2077.1888
Severely_persistent: avg_pge=0.9358, expected range: -1.7925 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13464 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8426, expected range: -0.5653 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 12910 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.4268, expected range: 0.0000 12.5514
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.2757, expected range: 0.0000 29.9749
Severe: avg_pge=0.9547, expected range: -0.1345 0.1644
MANUAL LAND SYNOP RH2M (%) 42792 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9995, expected range: 0.4497 0.7500
MANUAL LAND SYNOP RH2M (%) 42915 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=54.4708, expected range: -43.3148 97.2444
Severe: rms_fgdepar=54.4708, expected range: 0.0000 97.2444
Severe: avg_pge=1.0000, expected range: -2.0130 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 15712 : out of range
Severe: rms_fgdepar=533.3848, expected range: 0.0000 356.3025
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63705 : out of range
Severe: rms_fgdepar=326.0638, expected range: 0.0000 151.6781
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42237 : out of range
Severe: rms_fgdepar=317.9492, expected range: 0.0000 170.4392
Severe: avg_pge=0.8217, expected range: -0.5484 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43367 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8110, expected range: -1.4833 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43277 : out of range
Severe: rms_fgdepar=414.0238, expected range: 0.0000 279.8916
Severe: avg_pge=0.8661, expected range: -0.9427 0.7500
BUFR LAND SYNOP RH2M (%) 15094 : out of range
Severe: rms_fgdepar=31.3556, expected range: 0.0000 16.7274
BUFR LAND SYNOP RH2M (%) 28698 : out of range
Severe: rms_fgdepar=48.4865, expected range: 0.0000 25.2265
Severe: avg_pge=0.8430, expected range: -0.0095 0.0169
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22100 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=538.4175, expected range: 0.0000 182.9051
BUFR LAND SYNOP SURFACE PRESSURE (PA) 01011 : out of range
Severe: avg_pge=0.8632, expected range: -0.9996 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 51818 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8799, expected range: -0.8948 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30028 : out of range
Severe: avg_fgdepar=-605.1795, expected range: -120.4885 105.9282
Severe: rms_fgdepar=773.0159, expected range: 0.0000 133.5676
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16239 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=325.4411, expected range: 0.0000 53.2475
Severe: avg_pge=0.8357, expected range: 0.0000 0.0000
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VEP717 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8506, expected range: 0.1043 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CKR759 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8556, expected range: -0.4165 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9402 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=520.6126, expected range: 361.7560 1025.0140
Severely_persistent: rms_fgdepar=522.0076, expected range: 366.5874 1022.8013
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3286 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-852.4681, expected range: -948.5189 1120.0017
Severely_persistent: rms_fgdepar=1021.1126, expected range: 0.0000 995.6049
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WDD6127 : out of range
Severe: avg_fgdepar=24.6849, expected range: -12.7135 20.9030
Severe: rms_fgdepar=25.3614, expected range: 0.0000 20.9456
Severe: avg_pge=0.9261, expected range: -1.2376 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCC8 : out of range
Severe: avg_pge=0.9178, expected range: -0.9735 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9631 : out of range
Severe: rms_fgdepar=501.4305, expected range: 0.0000 537.9686
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWZW2 : out of range
Severe: rms_fgdepar=654.4532, expected range: 0.0000 1098.8628
BUFR SHIP SYNOP SURFACE PRESSURE (PA) DJNY2 : out of range
Severe: avg_fgdepar=-594.8247, expected range: -69.3099 95.5599
Severe: rms_fgdepar=763.4447, expected range: 0.0000 106.5703
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7EQ4 : out of range
Severe: avg_fgdepar=-1102.9629, expected range: -713.9035 912.3877
Severe: rms_fgdepar=1102.9629, expected range: 0.0000 758.5824
Severe: avg_pge=0.9183, expected range: -1.3529 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 4600028 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-578.5457, expected range: -1213.4952 1247.8530
Severely_persistent: rms_fgdepar=583.3456, expected range: 0.0000 887.0368
Severely_persistent: avg_pge=0.9115, expected range: 0.0472 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202694 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8843, expected range: -0.6667 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101768 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8195, expected range: -1.1362 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101719 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8007, expected range: -0.9660 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=3189.0000, expected range: 2409.4923 2549.8018
Considerable: obs_number=554.0000, expected range: 404.2992 495.1125
Slight: obs_number=10853.0000, expected range: 9944.2613 10362.5623
metar
METAR SURFACE PRESSURE (PA) DTTD : out of range
Severe: rms_fgdepar=553.5975, expected range: 0.0000 85.7682
METAR SURFACE PRESSURE (PA) OPMJ : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-610.3364, expected range: -408.2881 256.7526
Severe: rms_fgdepar=611.4771, expected range: 0.0000 315.9968
Severe: avg_pge=0.8534, expected range: -0.4532 0.7052
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-73.0725, expected range: -82.6578 -68.9102
Severely_persistent: rms_fgdepar=73.0725, expected range: 68.9102 82.6578
AUTOMATIC LAND SYNOP SNOW (CM) 71576 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.6617, expected range: -59.0965 -56.6645
Severely_persistent: rms_fgdepar=55.6617, expected range: 56.6645 59.0965
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=-72.8940, expected range: -85.8389 -42.1925
Severely_persistent: rms_fgdepar=72.8943, expected range: 42.2023 85.8431
BUFR LAND SYNOP SNOW (CM) 01192 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-52.9301, expected range: -80.9689 -62.2090
Severely_persistent: rms_fgdepar=52.9886, expected range: 62.2157 80.9682
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=-72.8112, expected range: -85.6992 -42.1667
Severely_persistent: rms_fgdepar=72.8114, expected range: 42.1775 85.7049
AUTOMATIC LAND SYNOP SNOW (CM) 71134 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-53.1312, expected range: -48.7919 -41.6844
Severe: rms_fgdepar=53.1312, expected range: 41.6844 48.7919
MANUAL LAND SYNOP SNOW (CM) 16021 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=55.1613, expected range: 47.0970 63.6414
Severe: rms_fgdepar=55.1613, expected range: 47.0970 63.6414
BUFR LAND SYNOP SNOW (CM) 01026 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.3418, expected range: 0.0000 3.3634
BUFR LAND SYNOP SNOW (CM) 10836 : out of range
Severe: rms_fgdepar=20.2445, expected range: -1.7180 2.0143
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.0510, expected range: 0.0000 17.9306
BUFR LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.0925, expected range: 0.0000 18.0359
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.6418, expected range: -14.0744 -0.1909
Severe: rms_fgdepar=12.6779, expected range: 1.0351 13.6537
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71044 : out of range
Severe: rms_fgdepar=10.4438, expected range: 0.0000 4.3954
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72410 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.4237, expected range: -2.2889 17.2646
Severe: rms_fgdepar=14.4237, expected range: 0.0000 17.2646
MANUAL LAND SYNOP 2M TEMPERATURE (K) 65504 : out of range
Severe: rms_fgdepar=12.2379, expected range: 0.5648 4.0211
MANUAL LAND SYNOP 2M TEMPERATURE (K) 21608 : out of range
Severe: avg_fgdepar=-12.4079, expected range: -10.7468 -1.5120
Severe: rms_fgdepar=12.5455, expected range: 2.4648 10.5236
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25248 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.2114, expected range: -19.7050 12.1941
Severe: rms_fgdepar=13.2114, expected range: 0.0000 17.8472
METAR 2M TEMPERATURE (K) BIVO : out of range
Severe: avg_fgdepar=12.5467, expected range: -0.9886 6.7195
Severe: rms_fgdepar=12.5820, expected range: 0.0000 6.7428
METAR 2M TEMPERATURE (K) LIMY : out of range
Severe: avg_fgdepar=12.1769, expected range: 6.3890 12.1709
Severe: rms_fgdepar=12.3802, expected range: 6.5955 12.1451
BUFR LAND SYNOP 2M TEMPERATURE (K) 65504 : out of range
Severe: rms_fgdepar=12.2309, expected range: 0.5347 3.8338
BUFR LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.3909, expected range: -14.1154 0.0798
Severe: rms_fgdepar=12.4375, expected range: 0.9571 13.5652
BUFR LAND SYNOP 2M TEMPERATURE (K) 21608 : out of range
Severe: avg_fgdepar=-12.4770, expected range: -10.7814 -1.5689
Severe: rms_fgdepar=12.6116, expected range: 2.5116 10.5622
BUFR LAND SYNOP 2M TEMPERATURE (K) 25248 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.2713, expected range: -19.7514 12.1373
Severe: rms_fgdepar=13.2713, expected range: 0.0000 17.9217
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=395.0000, expected range: 437.1958 454.1726
rh2m
BUFR LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=380.0000, expected range: 419.0926 450.6969