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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-10-24 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 1513 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0830, expected range: -0.0980 -0.0912
METOP-B IASI RADIANCES CHANNEL 1521 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0754, expected range: -0.0989 -0.0921
METOP-B IASI RADIANCES CHANNEL 1658 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1167, expected range: 0.0496 0.0810
METOP-C IASI RADIANCES CHANNEL 1639 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.0575, expected range: 0.0231 0.0437
cris
NOAA20 CRIS RADIANCES CHANNEL 610 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.0087, expected range: -0.0267 -0.0175
NOAA20 CRIS RADIANCES CHANNEL 598 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.0822, expected range: -0.1016 -0.0890
airs
AQUA AIRS RADIANCES CHANNEL 179 : out of range
Slight: avg_fgdepar=0.0324, expected range: -0.0187 0.0197
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1508.0000, expected range: 3001.7249 5057.9001
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2028.0000, expected range: 3691.1014 6610.7736
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2036.0000, expected range: 3677.5988 6631.6512
gpsro
METOP-A GRAS SETTING HEIGHT 20-22 KM : out of range
Slight: stdev_norm_fgdepar=1.1265, expected range: 0.9204 1.0851
Atmospheric Motion Vector
NOAA-15 AVHRR IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=528.0000, expected range: 66.7050 348.5480
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 640-641 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: avg_fgdepar=-0.4834, expected range: -1.3200 -0.7169
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 29 : all data missing
Severely_persistent: obs_number=0, expected range: 92.76 515.12
LAND TEMP TEMPERATURE (K) 91408 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.0690, expected range: 0.8031 2.7894
LAND TEMP TEMPERATURE (K) 29862 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-10.6487, expected range: -8.0440 4.7736
Severe: rms_fgdepar=10.6487, expected range: 0.0000 8.7248
Severe: avg_pge=0.9233, expected range: -1.1363 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 30054 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=26.1746, expected range: -2.4351 11.2882
Severe: rms_fgdepar=26.4525, expected range: 0.0000 12.6269
Severe: avg_pge=0.8748, expected range: -0.5281 0.7500
All LAND TEMP ALL LAYERS WMO BLOCK 43 : all data missing
Severe: obs_number=0, expected range: 0.00 310.14
HIGH RESO LAND TEMP TEMPERATURE (K) 54102 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: avg_pge=0.8985, expected range: -1.2476 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 55299 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=15.0063, expected range: 0.0000 7.4753
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=11.8071, expected range: 0.7309 5.2940
HIGH RESO LAND TEMP Q (G/KG) 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 286.1845
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=56.0000, expected range: 76.4651 94.1349
amdar
All TAMDAR ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 0.00 255.37
WIGOS AMDAR TEMPERATURE (K) WVTUIEZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=11.0749, expected range: -1.0575 0.7735
Severe: rms_fgdepar=11.0749, expected range: 0.0000 1.7780
Severe: avg_pge=0.9105, expected range: -0.1310 0.1479
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8851, expected range: -0.8277 0.7500
MODE-S WIND VECTOR DIFF (M/S) M6D0391 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.4485, expected range: 0.2465 5.3249
ADS-C WIND VECTOR DIFF (M/S) 1KCDAXJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.7478, expected range: 0.0000 27.6772
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 03375 PRESSURE LAYER 600-900 : out of range
Severe: avg_fgdepar=27.3826, expected range: 0.3834 5.3425
Severe: rms_fgdepar=27.3826, expected range: 0.2020 6.6875
Severe: avg_pge=0.9102, expected range: 0.0071 0.4742
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=310.0000, expected range: 338.2380 379.4286
Considerable: obs_number=310.0000, expected range: 338.2380 379.4286
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 83825 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=667.6251, expected range: -1078.9486 1179.8259
Severely_persistent: rms_fgdepar=726.1115, expected range: 0.0000 973.3198
Severely_persistent: avg_pge=0.8408, expected range: -1.0075 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48938 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=586.7894, expected range: 0.0000 150.0787
BUFR LAND SYNOP SURFACE PRESSURE (PA) _MI1425D : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8651, expected range: 0.4058 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41600 : out of range
Severe: rms_fgdepar=344.4350, expected range: 0.0000 185.8403
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40831 : out of range
Severe: rms_fgdepar=519.2141, expected range: 0.0000 95.3053
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67861 : out of range
Severe: rms_fgdepar=475.6390, expected range: 0.0000 117.4889
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60481 : out of range
Severe: rms_fgdepar=660.2036, expected range: 0.0000 142.5049
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87022 : out of range
Severe: avg_fgdepar=-583.7217, expected range: -201.3803 174.7493
Severe: rms_fgdepar=670.6573, expected range: 0.0000 139.6212
Severe: avg_pge=0.8584, expected range: -0.2710 0.3255
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43272 : out of range
Severe: avg_pge=0.8300, expected range: -0.9481 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82143 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8102, expected range: -0.3623 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35225 : out of range
Severe: rms_fgdepar=544.7175, expected range: 0.0000 114.8694
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83746 : out of range
Severe: rms_fgdepar=527.6396, expected range: 0.0000 189.5700
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86128 : out of range
Severe: avg_pge=0.8589, expected range: -1.2457 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83768 : out of range
Severe: rms_fgdepar=329.8273, expected range: 0.0000 121.5152
MANUAL LAND SYNOP RH2M (%) 67951 : out of range
Severe: rms_fgdepar=41.7220, expected range: 0.0142 14.2805
MANUAL LAND SYNOP RH2M (%) 68234 : out of range
Severe: rms_fgdepar=33.2696, expected range: 0.0000 17.4389
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13601 : out of range
Severe: avg_pge=0.8144, expected range: -0.9336 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 21931 : out of range
Severe: rms_fgdepar=439.2609, expected range: 0.0000 261.1162
Severe: avg_pge=0.8626, expected range: -0.7631 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48381 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=455.9722, expected range: 0.0000 224.8177
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94642 : out of range
Severe: rms_fgdepar=349.3334, expected range: 0.0000 68.8860
Severe: avg_pge=0.8378, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 32509 : out of range
Severe: rms_fgdepar=522.3259, expected range: 0.0000 153.1566
BUFR LAND SYNOP RH2M (%) 94511 : out of range
Severe: rms_fgdepar=43.0750, expected range: 0.0000 20.6332
Severe: avg_pge=0.9949, expected range: -0.1230 0.1476
BUFR LAND SYNOP RH2M (%) 94451 : out of range
Severe: avg_pge=0.9993, expected range: -0.0159 0.0290
BUFR LAND SYNOP RH2M (%) 94422 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9979, expected range: -1.7764 0.7500
BUFR LAND SYNOP RH2M (%) 28843 : out of range
Severe: avg_fgdepar=-56.6177, expected range: -16.6972 22.1434
Severe: rms_fgdepar=56.6177, expected range: 0.0000 17.5272
Severe: avg_pge=0.9978, expected range: 0.0007 0.0050
BUFR LAND SYNOP RH2M (%) 95614 : out of range
Severe: avg_pge=0.9409, expected range: -0.7147 0.7500
BUFR LAND SYNOP RH2M (%) 94525 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=56.9666, expected range: -25.9399 34.2229
Severe: rms_fgdepar=56.9666, expected range: 0.0000 27.6751
Severe: avg_pge=1.0000, expected range: -1.1561 0.7500
BUFR LAND SYNOP RH2M (%) 71346 : out of range
Severe: rms_fgdepar=39.4408, expected range: 0.0000 21.0199
BUFR LAND SYNOP RH2M (%) 71528 : out of range
Severe: rms_fgdepar=35.2310, expected range: 0.0000 15.7329
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7UU2 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.5872, expected range: 0.0000 12.9398
Severe: avg_pge=0.8919, expected range: -0.7539 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK99 : out of range
Severe: rms_fgdepar=19.3722, expected range: 0.0000 12.8473
Severe: avg_pge=0.9005, expected range: -0.9129 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6EF4 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=679.0324, expected range: -1383.3291 1545.8049
Severe: rms_fgdepar=679.0324, expected range: -1142.0740 1480.0040
Severe: avg_pge=0.8505, expected range: -1.4450 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2IYH4 : out of range
Severe: rms_fgdepar=451.7791, expected range: 0.0000 91.7634
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6ZS4 : out of range
Severe: avg_fgdepar=715.9286, expected range: -560.0391 936.9086
Severe: rms_fgdepar=715.9286, expected range: 0.0000 1094.2172
Severe: avg_pge=0.8569, expected range: -1.4779 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) BPBC : out of range
Severe: avg_fgdepar=-573.5071, expected range: -524.4675 646.9074
Severe: rms_fgdepar=576.6019, expected range: 0.0000 514.3102
Severe: avg_pge=0.8399, expected range: -0.8058 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) AVQU : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-746.6741, expected range: -286.6855 322.8284
Severe: rms_fgdepar=746.9718, expected range: 0.0000 368.0337
Severe: avg_pge=0.8847, expected range: -1.0222 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 4600001 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8707, expected range: 0.2700 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204572 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-582.9532, expected range: -1260.1970 1147.7533
Severely_persistent: rms_fgdepar=583.7520, expected range: 0.0000 699.9021
Severely_persistent: avg_pge=0.9090, expected range: -0.1227 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4701740 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=540.1352, expected range: -420.2846 495.7452
Severe: rms_fgdepar=544.9835, expected range: -490.8006 668.5593
Severe: avg_pge=0.8846, expected range: -1.1084 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KQFW : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-536.0269, expected range: -1162.3724 174.5571
Severely_persistent: rms_fgdepar=538.6271, expected range: 0.0000 1119.0863
snow
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.6957, expected range: 44.1368 58.1211
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.5420, expected range: 45.2790 58.6200
BUFR LAND SYNOP SNOW (CM) _MI1EDCD : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=100.0000, expected range: 95.1567 102.8088
BUFR LAND SYNOP SNOW (CM) _MI1EDCD : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=100.0000, expected range: 95.1580 102.8079
MANUAL LAND SYNOP SNOW (CM) 20107 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.9855, expected range: 0.0000 5.5767
ROCOB TEMP SNOW (CM) 63300081 : out of range
Severe: rms_fgdepar=18.2256, expected range: -0.9186 1.4318
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 36974 : out of range
Severe: avg_fgdepar=12.4029, expected range: -6.8433 12.1368
Severe: rms_fgdepar=12.4029, expected range: 0.0000 9.9752
METAR 2M TEMPERATURE (K) SLCA : out of range
Severe: avg_fgdepar=14.8166, expected range: -3.4852 7.0645
Severe: rms_fgdepar=14.9510, expected range: 0.3638 6.4742
BUFR LAND SYNOP 2M TEMPERATURE (K) 02816 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.0230, expected range: 0.0000 2.5861
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI187D8 : out of range
Severe: avg_fgdepar=-19.7191, expected range: -8.8690 4.9976
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI187D8 : out of range
Severe: rms_fgdepar=19.7191, expected range: 0.0000 6.7852
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI187D8 : out of range
Severe: avg_est_pge=0.8074, expected range: -0.1552 0.4589
rh2m
MANUAL LAND SYNOP RH2M (%) 62271 : out of range
Severe: rms_fgdepar=32.9604, expected range: 0.0000 15.9240
METAR RH2M (%) KGCK : out of range
Severe: rms_fgdepar=37.9503, expected range: 2.0050 22.2363