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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-27 00:00

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=0.1205, expected range: 0.1615 0.1866
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4039, expected range: -0.3521 -0.2928
atms
NOAA20 ATMS RADIANCES CHANNEL 18 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=402.0000, expected range: 9.9327 11.5427
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=403.0000, expected range: 10.0109 12.1138
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 145.92 790.02
METEOSAT-11 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Slight: avg_fgdepar=3.1579, expected range: 3.5560 4.1040
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 2 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2019, expected range: 0.0822 0.1476
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=9.3264, expected range: -1.6467 11.9681
Severely_persistent: rms_fgdepar=9.3266, expected range: 0.0000 11.8847
LAND TEMP Q (G/KG) 40430 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6873, expected range: 0.0000 1.3811
LAND TEMP Q (G/KG) 29862 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.9359, expected range: 0.0000 1.6761
LAND TEMP TEMPERATURE (K) 29572 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.5986, expected range: 0.0000 2.3014
Severe: avg_pge=0.8139, expected range: -0.5101 0.7339
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=174.0000, expected range: 87.1548 97.8452
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 46.16 492.19
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=662.0000, expected range: 745.8723 773.1277
amdar
AMDAR WIND VECTOR DIFF (M/S) ANZ946 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.4580, expected range: -3.4831 8.6143
Severe: rms_fgdepar=20.4580, expected range: 0.0000 8.6964
Severe: avg_pge=0.8787, expected range: -1.2116 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0557 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.1220, expected range: 0.0000 7.8842
WIGOS AMDAR WIND VECTOR DIFF (M/S) UGVEOFZA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=16.8383, expected range: 0.0000 6.4341
Severe: avg_pge=0.8106, expected range: -0.2784 0.4008
WIGOS AMDAR TEMPERATURE (K) JL3WUUJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.1331, expected range: 0.0000 3.3448
MODE-S WIND VECTOR DIFF (M/S) M4ADB99 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.6766, expected range: 0.0000 6.4032
airep
AIREP WIND VECTOR DIFF (M/S) UAL1749 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.8501, expected range: 0.0000 7.5779
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 649.2603
synop
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=715.9236, expected range: 581.6718 1163.0569
Severely_persistent: rms_fgdepar=718.5287, expected range: 580.7294 1165.4242
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8640, expected range: -0.0540 0.0838
MANUAL LAND SYNOP RH2M (%) 68572 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=61.5114, expected range: -71.9016 99.7420
Severe: rms_fgdepar=61.5114, expected range: 0.0000 96.8514
Severe: avg_pge=0.9817, expected range: -1.0053 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40680 : out of range
Severe: avg_fgdepar=596.8018, expected range: -171.4615 131.6007
Severe: rms_fgdepar=596.8018, expected range: 0.0000 114.7901
Severe: avg_pge=0.9038, expected range: -0.3201 0.3688
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67143 : out of range
Severe: avg_fgdepar=-528.4943, expected range: -536.7023 408.0304
Severe: rms_fgdepar=714.0011, expected range: 0.0000 318.2650
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 80416 : out of range
Severe: rms_fgdepar=356.0866, expected range: 225.7065 331.4605
Severe: avg_pge=0.8025, expected range: 0.6389 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87007 : out of range
Severe: rms_fgdepar=331.8115, expected range: 0.0000 129.6074
BUFR LAND SYNOP Z (M) 56172 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9782, expected range: -1.5818 0.7500
BUFR LAND SYNOP RH2M (%) 72334 : out of range
Severe: rms_fgdepar=30.6721, expected range: 0.0000 11.2682
BUFR LAND SYNOP RH2M (%) 27485 : out of range
Severe: rms_fgdepar=36.1794, expected range: 0.0000 19.9202
BUFR LAND SYNOP RH2M (%) 72266 : out of range
Severe: rms_fgdepar=47.5360, expected range: 0.0000 8.5430
BUFR LAND SYNOP RH2M (%) 06747 : out of range
Severe: avg_fgdepar=-53.2100, expected range: -71.1430 35.7374
Severe: rms_fgdepar=53.2516, expected range: 0.0000 69.5398
Severe: avg_pge=0.9927, expected range: -1.1111 0.7500
BUFR LAND SYNOP RH2M (%) 68267 : out of range
Severe: rms_fgdepar=30.4397, expected range: 0.0000 15.5525
BUFR LAND SYNOP RH2M (%) 41858 : out of range
Severe: rms_fgdepar=30.9234, expected range: 0.0000 16.4096
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48074 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=561.5000, expected range: 0.0000 366.6968
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28775 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=565.8682, expected range: 0.0000 385.2898
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8889, expected range: 0.0637 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9052, expected range: 0.5166 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE37 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8150, expected range: 0.0007 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severely_persistent: obs_number=0, expected range: 113.17 195.92
BUFR SHIP SYNOP SURFACE PRESSURE (PA) BAWPAEG : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=673.6283, expected range: 65.8639 1139.1017
Severely_persistent: rms_fgdepar=673.6283, expected range: 64.5408 1141.3600
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severely_persistent: obs_number=0, expected range: 226.04 243.56
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDH7561 : out of range
Severe: avg_fgdepar=1504.2246, expected range: -371.4978 825.2311
Severe: rms_fgdepar=1504.2246, expected range: 0.0000 792.4311
Severe: avg_pge=0.9267, expected range: -0.9720 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCBD3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=850.0216, expected range: -624.7753 717.1397
Severe: rms_fgdepar=850.0216, expected range: 0.0000 614.9676
Severe: avg_pge=0.8735, expected range: -1.0212 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3EFP6 : out of range
Severe: rms_fgdepar=560.3496, expected range: 20.8686 456.7975
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRPY7 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=519.6803, expected range: 326.0168 529.5174
Severe: rms_fgdepar=521.6136, expected range: 313.8693 553.6596
Severe: avg_pge=0.8007, expected range: 0.6317 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4638 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=620.7706, expected range: -1000.2082 1873.2575
Severe: rms_fgdepar=620.7706, expected range: 0.0000 1867.2369
Severe: avg_pge=0.8398, expected range: -1.2768 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204596 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-538.9698, expected range: -1009.8644 1143.9604
Severely_persistent: rms_fgdepar=543.8642, expected range: 0.0000 984.0568
Severely_persistent: avg_pge=0.9047, expected range: -1.1176 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5102722 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8125, expected range: -0.8292 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203734 : out of range
Severe: avg_fgdepar=-603.1942, expected range: -111.0687 104.6893
Severe: rms_fgdepar=603.1942, expected range: 0.0000 102.6825
Severe: avg_pge=0.9130, expected range: -0.2034 0.2333
metar
METAR SURFACE PRESSURE (PA) KGLH : out of range
Severe: rms_fgdepar=311.0787, expected range: 0.0000 159.0722
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=-773.0089, expected range: -775.1754 -770.8346
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=773.0089, expected range: 770.8347 775.1755
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
31 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=59.2727, expected range: 39.8170 72.3300
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
31 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=59.6962, expected range: 40.5132 72.2485
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=53.2000, expected range: 55.6253 64.4506
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=54.8665, expected range: 56.3908 64.6506
BUFR LAND SYNOP SNOW (CM) _MI1D33C : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=62.4473, expected range: 28.4222 58.9300
BUFR LAND SYNOP SNOW (CM) _MI1D33C : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=62.4653, expected range: 28.6179 60.5371
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.7686, expected range: -20.2303 -16.6242
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.7935, expected range: 16.6398 20.2350
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24477 : out of range
Severe: rms_fgdepar=10.3247, expected range: 0.1405 4.0375
MANUAL LAND SYNOP 2M TEMPERATURE (K) 63729 : out of range
Severe: rms_fgdepar=11.5979, expected range: 0.1007 3.0634
METAR 2M TEMPERATURE (K) EGCC : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.0453, expected range: 0.0000 3.7331
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI199E1 : out of range
Severe: rms_fgdepar=12.5416, expected range: 0.0000 9.6138
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1B0DD : out of range
Severe: rms_fgdepar=13.4009, expected range: 0.0000 9.1536
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 12200 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.4735, expected range: 7.1204 19.2369
AUTOMATIC LAND SYNOP RH2M (%) 72363 : out of range
Severe: rms_fgdepar=34.1672, expected range: 0.0000 17.9580
LAND TEMP RH2M (%) 71082 : out of range
Severe: rms_fgdepar=35.7616, expected range: 0.0000 18.1768