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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-05-15 00:00

amsua
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0795, expected range: 0.1542 0.2138
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5750, expected range: -0.4709 -0.4073
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2184, expected range: 0.3147 0.3517
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2294, expected range: -0.1314 -0.1300
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2659, expected range: -0.1608 -0.1376
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7060, expected range: -0.6370 -0.6000
atms
NPP ATMS RADIANCES CHANNEL 19 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1490, expected range: -0.2077 -0.1786
NPP ATMS RADIANCES CHANNEL 14 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0304, expected range: -0.0252 -0.0164
NPP ATMS RADIANCES CHANNEL 11 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2807, expected range: -0.2392 -0.2116
NPP ATMS RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4957, expected range: -0.4307 -0.3697
NPP ATMS RADIANCES CHANNEL 13 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4352, expected range: -0.3684 -0.3235
NOAA20 ATMS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2641, expected range: -0.2959 -0.2913
Atmospheric Motion Vector
HIMAWARI-8 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA : out of range
Considerable: obs_number=445.0000, expected range: 731.5170 1270.1395
GOES-17 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Slight: avg_fgdepar=3.7398, expected range: 3.2177 3.5438
Radiosondes
LAND TEMP TEMPERATURE (K) 30935 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8719, expected range: -1.9590 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 26298 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8583, expected range: -0.8594 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=244.0000, expected range: 289.5504 362.4496
Considerable: obs_number=55.0000, expected range: 96.2526 120.7474
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=3.1609, expected range: 0.1649 1.9888
amdar
ADS-C WIND VECTOR DIFF (M/S) OBT0QPJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.2423, expected range: 0.0000 31.2390
ADS-C WIND VECTOR DIFF (M/S) MLJJV5RA PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.2910, expected range: 0.0000 8.0892
ADS-C WIND VECTOR DIFF (M/S) 3NDUTARA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.9050, expected range: 0.0000 9.8812
ADS-C WIND VECTOR DIFF (M/S) GNXZHURA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=45.3532, expected range: -4.3333 10.4150
Severe: rms_fgdepar=45.7446, expected range: 0.0000 20.0765
AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=1625.0000, expected range: 121.0360 1001.4640
Considerable: obs_number=738.0000, expected range: 86.9974 444.5338
airep
AIREP WIND VECTOR DIFF (M/S) AAL110 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3015, expected range: 0.0000 10.3382
AIREP WIND VECTOR DIFF (M/S) ANZ103 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=36.5865, expected range: 0.0000 7.1047
AIREP WIND VECTOR DIFF (M/S) ANZ123 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=26.9689, expected range: 0.0000 34.1317
AIREP WIND VECTOR DIFF (M/S) UAL944 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7593, expected range: 0.0000 6.7599
AIREP WIND VECTOR DIFF (M/S) ANZ945 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=29.6134, expected range: 0.0000 11.5711
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06632 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=15.0176, expected range: 0.7174 5.0740
Severe: avg_pge=0.8430, expected range: -0.6086 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42348 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=29.5903, expected range: -3.6424 9.9023
Severe: rms_fgdepar=31.0085, expected range: 0.0000 10.8989
Severe: avg_pge=0.9102, expected range: -0.5341 0.7500
synop
MANUAL LAND SYNOP RH2M (%) 42770 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9964, expected range: -0.9303 0.7500
MANUAL LAND SYNOP RH2M (%) 42473 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9998, expected range: -1.5004 0.7500
MANUAL LAND SYNOP RH2M (%) 41715 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -1.6593 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25248 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=432.4283, expected range: 0.0000 255.6410
Severely_persistent: avg_pge=0.8710, expected range: -1.2776 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68403 : out of range
Severe: avg_pge=0.8040, expected range: -0.0275 0.0395
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67072 : out of range
Severe: rms_fgdepar=695.3865, expected range: 0.0000 88.1265
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82595 : out of range
Severe: rms_fgdepar=327.4526, expected range: 0.0000 294.6691
Severe: avg_pge=0.8229, expected range: -0.9004 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: rms_fgdepar=195.8286, expected range: 33.5585 91.3075
MANUAL LAND SYNOP RH2M (%) 42077 : out of range
Severe: avg_pge=0.9951, expected range: -0.2255 0.2949
MANUAL LAND SYNOP RH2M (%) 16597 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=42.1001, expected range: 0.0000 31.5249
Severe: avg_pge=0.9543, expected range: -0.0043 0.0106
MANUAL LAND SYNOP RH2M (%) 60468 : out of range
Severe: rms_fgdepar=33.7224, expected range: 0.0000 18.2931
MANUAL LAND SYNOP Z (M) 63740 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=112.6308, expected range: 3.8576 57.7856
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60520 : out of range
Severe: rms_fgdepar=303.2693, expected range: 0.0000 117.6894
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48390 : out of range
Severe: rms_fgdepar=316.7838, expected range: 0.0000 162.3633
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94401 : out of range
Severe: avg_fgdepar=859.6601, expected range: -183.6266 7.4167
Severe: rms_fgdepar=859.6601, expected range: 0.0000 183.6266
Severe: avg_pge=0.9319, expected range: -0.5930 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 96751 : out of range
Severe: avg_fgdepar=-640.2399, expected range: -677.1761 -520.3514
Severe: rms_fgdepar=642.5256, expected range: 521.0315 677.3804
BUFR LAND SYNOP SURFACE PRESSURE (PA) 76581 : out of range
Severe: avg_pge=0.8132, expected range: -0.4844 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 97072 : out of range
Severe: avg_fgdepar=-869.6861, expected range: -1091.7362 -708.0306
Severe: rms_fgdepar=872.8995, expected range: 709.5986 1091.5754
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29594 : out of range
Severe: rms_fgdepar=581.4008, expected range: 0.9200 47.6851
BUFR LAND SYNOP RH2M (%) 64040 : out of range
Severe: avg_fgdepar=-59.9986, expected range: -89.4007 -9.2949
Severe: rms_fgdepar=59.9986, expected range: 9.2949 89.4007
BUFR LAND SYNOP RH2M (%) 72637 : out of range
Severe: rms_fgdepar=34.6123, expected range: 0.0000 17.3206
BUFR LAND SYNOP RH2M (%) 06747 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-50.7892, expected range: -85.0740 65.6141
Severe: rms_fgdepar=50.8630, expected range: 0.0000 61.5654
Severe: avg_pge=0.8203, expected range: -1.3266 0.7500
BUFR LAND SYNOP RH2M (%) 72519 : out of range
Severe: avg_pge=0.9770, expected range: -0.0855 0.1082
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=1539.0000, expected range: 1703.6667 1963.6667
Considerable: obs_number=2547.0000, expected range: 2739.8697 3001.1303
Considerable: obs_number=91.0000, expected range: 161.2907 185.1537
Considerable: obs_number=452.0000, expected range: 490.1994 554.5506
Considerable: obs_number=1768.0000, expected range: 1946.6891 2147.8109
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WDH7560 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.4409, expected range: -1.5600 37.5458
Severe: rms_fgdepar=21.5092, expected range: 0.1803 37.2671
Severe: avg_pge=0.9223, expected range: -0.8401 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK51 : out of range
Severe: avg_fgdepar=561.2152, expected range: -163.9314 169.7609
Severe: rms_fgdepar=561.2152, expected range: 0.0000 198.8167
Severe: avg_pge=0.8085, expected range: -0.3932 0.4754
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK71 : out of range
Severe: rms_fgdepar=588.2068, expected range: 0.0000 127.3663
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2IYH3 : out of range
Severe: avg_fgdepar=523.0344, expected range: -428.9201 1804.1320
Severe: rms_fgdepar=523.0344, expected range: 0.0000 1942.2825
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6BR3 : out of range
Severe: avg_fgdepar=692.9378, expected range: -431.3006 422.4993
Severe: rms_fgdepar=692.9378, expected range: 0.0000 354.8672
Severe: avg_pge=0.8485, expected range: -0.7117 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROO5 : out of range
Severe: avg_fgdepar=-1027.3075, expected range: -247.6417 169.6533
Severe: rms_fgdepar=1027.3075, expected range: 0.0000 201.4833
Severe: avg_pge=0.9135, expected range: -0.8332 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAQU5 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=336.2700, expected range: 0.0000 154.9577
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PBKH : out of range
Severe: avg_fgdepar=1102.0781, expected range: -494.4509 839.4093
Severe: rms_fgdepar=1102.0781, expected range: 0.0000 748.8208
Severe: avg_pge=0.9099, expected range: -1.0925 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6200084 : out of range
Severe: rms_fgdepar=16.7272, expected range: 0.0000 11.1248
Severe: avg_pge=0.9171, expected range: -0.2506 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401586 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=514.2388, expected range: 0.0000 830.5261
Severe: avg_pge=0.8103, expected range: -1.1826 0.7500
metar
METAR SURFACE PRESSURE (PA) FWKI : out of range
Severe: rms_fgdepar=547.3806, expected range: 0.0000 100.6628
snow
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=65.7559, expected range: 42.3799 64.8551
Severely_persistent: rms_fgdepar=65.7585, expected range: 42.3810 64.8610
BUFR LAND SYNOP SNOW (CM) 01003 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-72.3226, expected range: -79.4179 -72.2310
Severely_persistent: rms_fgdepar=72.3226, expected range: 72.2310 79.4179
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=-736.0740, expected range: -745.6148 -709.2889
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=736.0745, expected range: 709.2917 745.6139
BUFR LAND SYNOP SNOW (CM) _MI1D545 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=64.0409, expected range: 47.4357 65.8009
BUFR LAND SYNOP SNOW (CM) _MI1D545 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=64.0617, expected range: 47.5109 65.7884
BUFR LAND SYNOP SNOW (CM) _MI161D5 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.9970, expected range: 60.4558 79.7818
BUFR LAND SYNOP SNOW (CM) _MI161D5 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=58.0353, expected range: 60.4659 79.7841
BUFR LAND SYNOP SNOW (CM) _MI1CD76 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-60.4886, expected range: -103.8956 -72.3312
BUFR LAND SYNOP SNOW (CM) _MI1CD76 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.4949, expected range: 73.4073 104.3804
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=103.6765, expected range: 81.3278 112.6925
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=103.6815, expected range: 81.3435 112.6914
BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-89.1944, expected range: -94.6710 -87.5471
Severely_persistent: rms_fgdepar=89.1944, expected range: 87.5472 94.6710
MANUAL LAND SYNOP SNOW (CM) 24462 : out of range
Severe: rms_fgdepar=19.5728, expected range: 0.0000 8.5966
BUFR LAND SYNOP SNOW (CM) 24462 : out of range
Severe: rms_fgdepar=19.5728, expected range: 0.0000 8.5966
t2m
LAND TEMP 2M TEMPERATURE (K) 65503 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.9314, expected range: -25.7232 9.2615
Severely_persistent: rms_fgdepar=15.0353, expected range: 0.0000 25.8220
BUFR LAND SYNOP 2M TEMPERATURE (K) 78896 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.3932, expected range: -17.2274 -9.4517
Severely_persistent: rms_fgdepar=15.4376, expected range: 9.6605 17.6511
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71506 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.1137, expected range: -2.5451 4.2237
Severe: rms_fgdepar=12.3101, expected range: 0.0000 4.2913
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51076 : out of range
Severe: avg_fgdepar=12.5977, expected range: -17.7054 18.7278
Severe: rms_fgdepar=12.5977, expected range: 0.7224 11.3478
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.0323, expected range: -13.8026 0.0226
Severe: rms_fgdepar=12.0630, expected range: 0.0000 14.0471
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=108.0000, expected range: 133.4944 136.0612
METAR 2M TEMPERATURE (K) TJIG : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.1218, expected range: 0.7540 3.0645
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1B8C2 : out of range
Severe: avg_fgdepar=-12.0486, expected range: -8.0757 2.0203
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1B8C2 : out of range
Severe: rms_fgdepar=12.0661, expected range: 0.0000 9.0868
BUFR LAND SYNOP 2M TEMPERATURE (K) 71506 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.7958, expected range: 0.2164 4.0791
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1AF46 : out of range
Severe: avg_fgdepar=-12.4844, expected range: -10.1833 2.5875
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1AF46 : out of range
Severe: rms_fgdepar=12.4860, expected range: 0.0000 11.3877
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI18957 : out of range
Severe: avg_fgdepar=-12.2782, expected range: -9.7200 2.9589
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI18957 : out of range
Severe: rms_fgdepar=12.2808, expected range: 0.0000 10.9272
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.0160, expected range: 0.0000 14.1168
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1412D : out of range
Severe: rms_fgdepar=10.7750, expected range: 0.0000 5.9125
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1051.0000, expected range: 1203.4880 1471.6370
rh2m
BUFR LAND SYNOP RH2M (%) 06249 : out of range
Severe: rms_fgdepar=38.5189, expected range: 0.0000 17.2834
MANUAL LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=105.0000, expected range: 128.0316 135.0795