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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-30 12:00

iasi
METOP-B IASI RADIANCES CHANNEL 271 : out of range
Slight: stdev_fgdepar=0.2518, expected range: 0.2225 0.2476
METOP-B IASI RADIANCES CHANNEL 272 : out of range
Slight: stdev_fgdepar=0.2527, expected range: 0.2247 0.2516
atms
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3553, expected range: -0.3168 -0.2923
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.5128, expected range: -2.9319 -2.8491
DMSP-18 SSMIS RADIANCES CHANNEL 5 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3886, expected range: 0.8562 1.3376
gpsro
COSMIC2-E1 GPSRO SETTING HEIGHT 26-28 KM : out of range
1 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=1.1971, expected range: 0.9288 1.1299
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0127, expected range: -0.0078 -0.0031
Severely_persistent: stdev_fgdepar=0.0158, expected range: 0.0018 0.0090
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
14 times in the last 10 days for at least one item
Slight: avg_fgdepar=-3.8384, expected range: -3.3301 -3.3301
Radiosondes
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 11.23 382.96
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 147.35 172.25
All BUFR TEMP DESCENT ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 81.39 102.61
All BUFR TEMP DESCENT ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 81.39 102.61
LAND TEMP Q (G/KG) 41024 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.1726, expected range: 0.0000 12.4034
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=97.0000, expected range: 188.7873 193.9627
Severe: rms_fgdepar=2.3647, expected range: 0.1583 1.2865
Considerable: obs_number=77.0000, expected range: 94.8092 100.0797
HIGH RESO LAND TEMP Q (G/KG) 91592 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.1406, expected range: 0.0000 0.8012
HIGH RESO LAND TEMP Q (G/KG) 45004 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.3647, expected range: 0.1583 1.2865
HIGH RESO LAND TEMP Q (G/KG) 54218 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.3310, expected range: 0.0000 1.8179
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=285.0000, expected range: 372.9146 389.3354
HIGH RESO LAND TEMP TEMPERATURE (K) 50953 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.9366, expected range: 0.2433 2.0754
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=4.9489, expected range: 0.6692 1.9641
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=90.0000, expected range: 155.8363 170.4137
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=105.0000, expected range: 178.6863 190.5637
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1722 PRESSURE LAYER 0-300 (HPA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=33.9094, expected range: -17.6330 46.4308
Severely_persistent: rms_fgdepar=33.9094, expected range: 0.0000 50.9168
Severely_persistent: avg_pge=0.9070, expected range: -0.0670 0.7500
AMDAR WIND VECTOR DIFF (M/S) ANZ946 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1570, expected range: 0.0000 8.3252
AMDAR WIND VECTOR DIFF (M/S) THT8 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.6311, expected range: -30.2248 41.4319
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0528 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=23.2245, expected range: -0.0215 4.7674
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0528 (4 pressure layers affected) : out of range
Severe: rms_fgdepar=24.5827, expected range: 0.0000 5.8622
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0528 (3 pressure layers affected) : out of range
Severe: avg_pge=0.8483, expected range: -0.3748 0.4481
WIGOS AMDAR TEMPERATURE (K) DJCENWZA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.7605, expected range: 0.0000 1.2824
WIGOS AMDAR TEMPERATURE (K) CNLKLS PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8596, expected range: 0.5985 0.7500
MODE-S WIND VECTOR DIFF (M/S) M2B30AB PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2088, expected range: 0.0612 5.5279
airep
AIREP WIND VECTOR DIFF (M/S) RAM208M PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3732, expected range: 0.0000 9.2761
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01405 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=19.3478, expected range: 0.0000 8.1776
Severe: avg_pge=0.8597, expected range: -0.6505 0.7500
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 395.4034
Severe: obs_number=0.0000, expected range: 0.0000 395.4034
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96221 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=16.5295, expected range: 0.0000 8.4218
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-774.2656, expected range: -1023.8551 747.6067
Severely_persistent: rms_fgdepar=774.7991, expected range: 0.0000 858.2594
Severely_persistent: avg_pge=0.9433, expected range: -1.0056 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=506.9980, expected range: 386.3060 597.0389
BUFR LAND SYNOP RH2M (%) 34394 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9179, expected range: -2.1588 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 04205 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=302.1112, expected range: 0.0000 218.5452
Severe: avg_pge=0.8153, expected range: -0.5823 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62393 : out of range
Severe: rms_fgdepar=401.6816, expected range: 0.0000 157.0509
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82397 : out of range
Severe: rms_fgdepar=303.6153, expected range: -86.3660 122.3867
Severe: avg_pge=0.8313, expected range: -0.4172 0.4807
MANUAL LAND SYNOP RH2M (%) 67280 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9019, expected range: -1.7658 0.7500
MANUAL LAND SYNOP RH2M (%) 36467 : out of range
Severe: rms_fgdepar=38.7166, expected range: 0.0000 21.7866
BUFR LAND SYNOP SURFACE PRESSURE (PA) 17510 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-655.3996, expected range: -96.3336 211.7455
Severe: rms_fgdepar=687.0585, expected range: 0.0000 183.1087
Severe: avg_pge=0.9121, expected range: -0.2642 0.6268
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14542 : out of range
Severe: rms_fgdepar=332.3667, expected range: 0.0000 139.5571
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36736 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8527, expected range: -0.3097 0.7500
BUFR LAND SYNOP RH2M (%) 23711 : out of range
Severe: avg_fgdepar=52.5981, expected range: -16.8099 22.2799
Severe: rms_fgdepar=52.5981, expected range: 0.0000 17.7238
Severe: avg_pge=0.9728, expected range: 0.0014 0.0040
BUFR LAND SYNOP RH2M (%) 71224 : out of range
Severe: avg_pge=0.8928, expected range: -0.6852 0.7500
BUFR LAND SYNOP RH2M (%) _170DB05 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9332, expected range: -1.0887 0.7500
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRDW2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8862, expected range: -0.7880 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 63103 : out of range
Severe: rms_fgdepar=347.7081, expected range: 0.0000 120.0038
Severe: avg_pge=0.8479, expected range: -0.7368 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 63056 : out of range
Severe: rms_fgdepar=321.8802, expected range: 0.0000 128.7982
Severe: avg_pge=0.8101, expected range: -0.5665 0.6745
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDF4831 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=305.8849, expected range: 0.0000 90.3281
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCEI3 : out of range
Severe: avg_fgdepar=532.0828, expected range: -615.4752 706.1983
Severe: rms_fgdepar=834.7511, expected range: 0.0000 590.7609
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4455 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=621.6235, expected range: 0.0000 900.9152
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HXD9 : out of range
Severe: rms_fgdepar=335.6273, expected range: 0.0000 151.5877
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H3JW : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=510.8725, expected range: -411.9661 966.8814
Severe: rms_fgdepar=510.8725, expected range: 0.0000 934.2687
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V7524 : out of range
Severe: avg_fgdepar=34.4138, expected range: -5.3421 13.5491
Severe: rms_fgdepar=34.4138, expected range: 0.0000 13.5431
Severe: avg_pge=0.9521, expected range: -1.0550 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF5B : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.1633, expected range: 0.0000 12.3691
Severe: avg_pge=0.8818, expected range: -0.9821 0.7500
buoy
All MOORED BUOYS WMO BLOCK 22 : all data missing
Severe: obs_number=0, expected range: 82.49 192.46
DRIFTING BUOYS SURFACE PRESSURE (PA) 5201721 : out of range
Severe: rms_fgdepar=313.4116, expected range: 0.0000 92.5189
metar
METAR SURFACE PRESSURE (PA) KSSC : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=568.3514, expected range: 0.0000 109.8181
METAR SURFACE PRESSURE (PA) HTSO : out of range
Severe: rms_fgdepar=543.4273, expected range: 0.0000 338.1692
AUTOMATIC METAR SURFACE PRESSURE (PA) LIRK : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-535.2896, expected range: -377.9409 695.5165
Severe: rms_fgdepar=542.4983, expected range: 0.0000 702.5745
snow
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=-780.4718, expected range: -793.1582 -765.3526
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=780.4718, expected range: 765.5928 793.0077
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=58.0000, expected range: 41.8400 61.7404
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=58.0000, expected range: 43.7324 62.0738
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51747 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.0994, expected range: -25.1951 22.0477
Severely_persistent: rms_fgdepar=13.0994, expected range: 0.3930 14.9552
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.9502, expected range: -17.7123 -9.2459
Severely_persistent: rms_fgdepar=12.9502, expected range: 9.2459 17.7123
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=18.3652, expected range: 7.2581 23.7263
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.6657, expected range: -20.8198 -6.3680
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.7143, expected range: 6.3694 20.8826
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 94619 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.5771, expected range: -12.5989 7.9969
Severe: rms_fgdepar=12.9410, expected range: 0.0000 12.1751
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42711 : out of range
Severe: avg_fgdepar=-16.7217, expected range: 0.4258 9.2280
Severe: rms_fgdepar=16.7217, expected range: 0.4258 9.2280
METAR 2M TEMPERATURE (K) SCCF : out of range
Severe: rms_fgdepar=10.0711, expected range: 3.1022 6.5825
BUFR LAND SYNOP 2M TEMPERATURE (K) 42711 : out of range
Severe: avg_fgdepar=-16.8740, expected range: 0.3838 9.1553
Severe: rms_fgdepar=16.8740, expected range: 0.3838 9.1553
BUFR LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.0001, expected range: -13.3473 -7.2119
Severe: rms_fgdepar=13.0001, expected range: 6.9860 13.8715
BUFR LAND SYNOP 2M TEMPERATURE (K) 94619 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.4799, expected range: -12.7837 7.8672
Severe: rms_fgdepar=12.8047, expected range: 0.0000 12.5295
rh2m
MANUAL LAND SYNOP RH2M (%) 42851 : out of range
Severe: rms_fgdepar=39.1544, expected range: 0.0000 15.7685