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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-08-11 12:00

amsua
METOP-B AMSUA RADIANCES CHANNEL 12 : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=0.6411, expected range: 0.6879 0.7483
METOP-C AMSUA RADIANCES CHANNEL 5 : out of range
Severe: avg_biascorr=-0.1581, expected range: -0.1118 -0.0678
NOAA-19 AMSUA RADIANCES CHANNEL 5 : out of range
Considerable: obs_number=4902.0000, expected range: 5332.4917 6249.6194
METOP-C AMSUA RADIANCES (9 channels affected) : out of range
Considerable: obs_number=1595.0000, expected range: 3315.5373 9741.1686
airs
AQUA AIRS RADIANCES CHANNEL 1948 : missing
11 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 1692.9061 8726.7881
gpsro
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 229.90 3313.29
All COSMIC2-E1 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 337.39 3444.24
Atmospheric Motion Vector
METOP-A AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=499.0000, expected range: 73.0796 338.8469
METOP-B AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=356.0000, expected range: 49.4996 249.0009
GOES-16 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=8659.0000, expected range: 16001.7221 23003.0279
GOES-17 AMV VIS1 WIND VECTOR DIFF (M/S) (2 pressure layers affected) : out of range
Considerable: obs_number=419.0000, expected range: 1078.3134 2059.9366
Geostationary CSR
GOES-16 ABI RADIANCES CHANNEL 2 : out of range
Considerable: obs_number=48568.0000, expected range: 81401.6681 98759.2731
GOES-16 ABI RADIANCES CHANNEL 3 : out of range
Considerable: obs_number=48586.0000, expected range: 81442.7174 98812.4591
GOES-16 ABI RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=48665.0000, expected range: 81590.0259 99014.5624
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 27.8439 612.9156
LAND TEMP TEMPERATURE (K) 48657 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.0160, expected range: 0.3175 2.8173
LAND TEMP TEMPERATURE (K) 24507 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-9.0145, expected range: -1.0386 1.5976
Severe: rms_fgdepar=9.6610, expected range: 0.0000 2.0418
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.9331, expected range: 0.5432 1.6520
LAND TEMP Q (G/KG) 32150 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.6625, expected range: 0.0000 2.0778
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=6.3120, expected range: 0.0000 4.0528
LAND TEMP Q (G/KG) 28275 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.5568, expected range: 0.0000 1.8068
All LAND TEMP ALL LAYERS WMO BLOCK 16 : all data missing
Severe: obs_number=0, expected range: 43.87 100.63
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 35.5969 331.5883
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.4828, expected range: 0.0000 0.6550
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 26 : all data missing
Severe: obs_number=0, expected range: 105.21 122.29
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 0.00 484.06
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=3.3279, expected range: 1.0257 2.4206
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=3635.0000, expected range: 4783.6428 6351.6072
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=2282.0000, expected range: 812.1038 1723.1462
amdar
AMDAR TEMPERATURE (K) CNFKQP PRESSURE LAYER 600-900 (HPA) : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-11.3531, expected range: -22.3774 7.0207
Severely_persistent: rms_fgdepar=12.4365, expected range: 0.0000 24.6051
WIGOS AMDAR WIND VECTOR DIFF (M/S) DIJX1DJA PRESSURE LAYER 0-300 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=27.2236, expected range: -30.6951 48.5392
Severely_persistent: rms_fgdepar=28.9686, expected range: 0.0000 50.0420
AMDAR TEMPERATURE (K) 00000248 (3 pressure layers affected) : out of range
Severe: avg_fgdepar=13.3029, expected range: -1.4738 0.7462
Severe: rms_fgdepar=13.3084, expected range: 0.0000 1.5846
Severe: avg_pge=0.9205, expected range: -0.1355 0.1676
AMDAR WIND VECTOR DIFF (M/S) NZL057 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=26.9438, expected range: 0.8242 5.8172
Severe: rms_fgdepar=26.9438, expected range: 0.7583 6.5930
WIGOS AMDAR WIND VECTOR DIFF (M/S) YZHGU1JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.2018, expected range: 1.6208 5.6703
WIGOS AMDAR WIND VECTOR DIFF (M/S) DIJX1DJA (2 pressure layers affecte : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8712, expected range: -1.5602 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48657 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.9275, expected range: 1.0798 10.1367
LAND PILOT WIND VECTOR DIFF (M/S) 61660 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.8508, expected range: 0.0000 6.1777
synop
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8778, expected range: -1.1130 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=539.7455, expected range: -1098.1759 1001.4270
Severely_persistent: rms_fgdepar=557.9004, expected range: 0.0000 755.2276
Severely_persistent: avg_pge=0.9126, expected range: 0.3752 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 55664 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-621.1409, expected range: -1258.4537 134.4827
Severely_persistent: rms_fgdepar=621.1466, expected range: 0.0000 1269.0497
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72494 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8221, expected range: 0.7681 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72327 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8729, expected range: 0.8591 0.7500
MANUAL LAND SYNOP RH2M (%) 64510 : out of range
Severe: rms_fgdepar=48.5594, expected range: 0.0000 34.1550
Severe: avg_pge=0.9995, expected range: -0.0180 0.0328
MANUAL LAND SYNOP RH2M (%) 35363 : out of range
Severe: rms_fgdepar=40.4068, expected range: 0.0000 21.4659
MANUAL LAND SYNOP RH2M (%) 60714 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8282, expected range: -1.0897 0.7500
MANUAL LAND SYNOP RH2M (%) 17096 : out of range
Severe: rms_fgdepar=32.0488, expected range: 0.0000 17.3322
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83700 : out of range
Severe: avg_fgdepar=789.5733, expected range: -364.7155 19.2304
Severe: rms_fgdepar=789.5733, expected range: 1.5025 307.2829
Severe: avg_pge=0.9274, expected range: 0.2722 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61679 : out of range
Severe: rms_fgdepar=607.9929, expected range: 0.0000 243.7988
BUFR LAND SYNOP RH2M (%) 29481 : out of range
Severe: rms_fgdepar=37.2417, expected range: 0.0000 20.8153
BUFR LAND SYNOP RH2M (%) 24802 : out of range
Severe: rms_fgdepar=37.8528, expected range: 0.0000 28.4820
Severe: avg_pge=0.8874, expected range: -0.0038 0.0120
BUFR LAND SYNOP RH2M (%) 28573 : out of range
Severe: rms_fgdepar=38.0040, expected range: 0.0000 17.4797
Severe: avg_pge=0.9034, expected range: -0.0006 0.0066
BUFR LAND SYNOP RH2M (%) 28076 : out of range
Severe: rms_fgdepar=30.9010, expected range: 0.0000 16.3491
BUFR LAND SYNOP RH2M (%) 28797 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=49.6823, expected range: 0.0000 5.6036
Severe: avg_pge=0.9895, expected range: 0.0021 0.0031
BUFR LAND SYNOP RH2M (%) 52378 : out of range
Severe: rms_fgdepar=31.9365, expected range: 0.0000 7.1627
BUFR LAND SYNOP RH2M (%) 11509 : out of range
Severe: rms_fgdepar=37.1993, expected range: 0.0000 14.4846
Severe: avg_pge=0.9183, expected range: -0.0142 0.0220
BUFR LAND SYNOP SURFACE PRESSURE (PA) 83700 : out of range
Severe: avg_fgdepar=789.5733, expected range: -364.7155 19.2304
Severe: rms_fgdepar=789.5733, expected range: 1.5025 307.2829
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23975 : out of range
Severe: rms_fgdepar=530.8361, expected range: 0.0000 176.4221
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60178 : out of range
Severe: rms_fgdepar=577.7232, expected range: 0.0000 238.5599
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61679 : out of range
Severe: rms_fgdepar=607.9929, expected range: 0.0000 243.7988
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=1520.0000, expected range: 1309.2762 1449.4738
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=3154.0000, expected range: 2750.2162 2935.2838
Considerable: obs_number=382.0000, expected range: 190.8299 254.9479
Considerable: obs_number=2017.0000, expected range: 1640.4871 1885.0129
ship
SHIP SURFACE PRESSURE (PA) WGAH : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=659.4293, expected range: -1247.3167 1375.8509
Severely_persistent: rms_fgdepar=665.6244, expected range: -855.8782 1239.0760
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WGAH : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=659.4293, expected range: -1258.1129 1384.9163
Severely_persistent: rms_fgdepar=665.6244, expected range: -857.0317 1243.6922
Severely_persistent: avg_pge=0.8373, expected range: -1.3843 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRMD3 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8683, expected range: -0.5527 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ZDNC5 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8502, expected range: -0.7401 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDDI : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=562.8561, expected range: -808.8215 1064.5391
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V8208 : out of range
Severe: avg_pge=0.8786, expected range: -1.3090 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601521 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8427, expected range: -1.5805 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501733 : out of range
Severe: rms_fgdepar=336.7855, expected range: 0.0000 160.6173
t2m
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8432, expected range: -0.2481 1.3851
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.0596, expected range: -20.2116 -13.5409
Severely_persistent: rms_fgdepar=16.1282, expected range: 13.7211 20.2274
METAR 2M TEMPERATURE (K) KNEL : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.8816, expected range: -15.9543 11.3170
Severe: rms_fgdepar=15.7868, expected range: 0.0000 16.6308
METAR 2M TEMPERATURE (K) KSBN : out of range
Severe: rms_fgdepar=12.0229, expected range: 0.3826 4.1214
METAR 2M TEMPERATURE (K) KDOV : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.6716, expected range: 0.0000 5.6010
BUFR LAND SYNOP 2M TEMPERATURE (K) 86928 : out of range
Severe: rms_fgdepar=10.5757, expected range: 0.0000 4.7664
rh2m
MANUAL LAND SYNOP RH2M (%) 83813 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.7991, expected range: 0.0000 15.9344
BUFR LAND SYNOP RH2M (%) 83813 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.7961, expected range: 0.0000 15.9373