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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-24 00:00

iasi
METOP-C IASI RADIANCES CHANNEL 1574 : out of range
Slight: stdev_fgdepar=0.4364, expected range: 0.3748 0.4232
cris
NOAA20 CRIS RADIANCES (14 channels affected) : out of range
Considerable: avg_biascorr=0.2766, expected range: -0.0457 0.1393
airs
AQUA AIRS RADIANCES CHANNEL 110 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0302, expected range: -0.1185 -0.0727
Severely_persistent: avg_biascorr=0.0301, expected range: -0.4306 -0.1875
AQUA AIRS RADIANCES CHANNEL 128 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0052, expected range: -0.1055 -0.1007
Severely_persistent: avg_biascorr=0.0739, expected range: -0.6481 -0.2828
AQUA AIRS RADIANCES CHANNEL 129 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1188, expected range: -0.1899 -0.1793
Severely_persistent: avg_biascorr=0.0263, expected range: -0.5382 -0.2529
AQUA AIRS RADIANCES CHANNEL 69 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1573, expected range: -0.3283 -0.2410
Severely_persistent: avg_biascorr=-0.2711, expected range: -1.0520 -0.6894
AQUA AIRS RADIANCES CHANNEL 104 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0429, expected range: -0.1407 -0.0869
Severely_persistent: avg_biascorr=-0.0525, expected range: -0.5850 -0.2818
AQUA AIRS RADIANCES CHANNEL 116 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0548, expected range: -0.1616 -0.1103
Severely_persistent: avg_biascorr=-0.0368, expected range: -0.6195 -0.3134
AQUA AIRS RADIANCES CHANNEL 138 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1265, expected range: -0.3077 -0.1068
atms
NPP ATMS RADIANCES CHANNEL 11 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1654, expected range: -0.1497 -0.1334
NPP ATMS RADIANCES CHANNEL 12 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2387, expected range: -0.2092 -0.1734
NPP ATMS RADIANCES CHANNEL 8 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6844, expected range: -0.6076 -0.5226
NPP ATMS RADIANCES CHANNEL 9 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6100, expected range: -0.4580 -0.4287
NPP ATMS RADIANCES CHANNEL 10 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.2158, expected range: -0.1940 -0.1785
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.5033, expected range: -2.9632 -2.8491
gpsro
COSMIC2-E5 GPSRO RISING HEIGHT 46-48 KM : out of range
Slight: avg_norm_fgdepar=0.0944, expected range: -0.1597 0.0211
resat
NOAA-19 SBUV OZONE, TOP (21 pressure layers affected) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: obs_number=11.0000, expected range: 51.2578 65.2580
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
10 times in the last 10 days for at least one item
Slight: stdev_fgdepar=3.3790, expected range: 2.7634 3.3217
Radiosondes
LAND TEMP Q (G/KG) 27199 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.9206, expected range: 0.0000 1.5609
LAND TEMP WIND VECTOR DIFF (M/S) 27730 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=18.4755, expected range: 0.0000 9.0869
All LAND TEMP ALL LAYERS WMO BLOCK 17 : all data missing
Severe: obs_number=0, expected range: 6.10 315.33
HIGH RESO LAND TEMP Q (G/KG) 72251 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.3048, expected range: 0.1034 1.8700
HIGH RESO LAND TEMP Q (G/KG) 58665 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.4728, expected range: 0.0000 1.6763
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=280.0000, expected range: 371.7577 382.6868
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=175.0000, expected range: 89.4645 96.5355
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : missing
Severe: obs_number=0.0000, expected range: 67.1490 87.8510
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 76 : all data missing
Severe: obs_number=0, expected range: 15.14 615.86
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU5019 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2765, expected range: 0.0000 6.1087
ADS-C WIND VECTOR DIFF (M/S) KYCJUCBA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=29.6481, expected range: 0.0000 18.9340
ADS-C WIND VECTOR DIFF (M/S) CWWWAIBA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.0865, expected range: 0.0000 14.7226
ADS-C WIND VECTOR DIFF (M/S) I0X2MLBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=40.5975, expected range: 0.0000 8.7367
ADS-C WIND VECTOR DIFF (M/S) OA1CBFJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.3148, expected range: 0.0000 15.2538
ADS-C WIND VECTOR DIFF (M/S) PPSAPQJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.1195, expected range: 0.0000 20.7774
ADS-C WIND VECTOR DIFF (M/S) 1KCDAXJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.2329, expected range: 0.0000 22.4575
ADS-C WIND VECTOR DIFF (M/S) X4TBZDRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=36.6012, expected range: 0.0000 16.0898
ADS-C WIND VECTOR DIFF (M/S) RSLICNRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.0736, expected range: 0.0000 13.4752
ADS-C WIND VECTOR DIFF (M/S) LNWICORA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=42.7456, expected range: 0.0000 18.8262
ADS-C WIND VECTOR DIFF (M/S) 5L3GKQRA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.4777, expected range: 0.0000 11.5361
ADS-C WIND VECTOR DIFF (M/S) VQNZRURA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.1404, expected range: 0.0000 17.3280
ADS-C WIND VECTOR DIFF (M/S) GYOTA4ZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.9404, expected range: 0.0000 20.3582
ADS-C WIND VECTOR DIFF (M/S) 0NRTSKZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.5685, expected range: 0.0000 8.7559
ADS-C WIND VECTOR DIFF (M/S) 4HBK4UZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.4949, expected range: 0.0000 13.8505
ADS-C WIND VECTOR DIFF (M/S) O3DJ3YZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.3144, expected range: 0.0000 23.5675
ADS-C WIND VECTOR DIFF (M/S) LF4YWYZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=28.0934, expected range: 0.0000 19.0379
airep
AIREP WIND VECTOR DIFF (M/S) AAL132 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.9483, expected range: 0.0000 22.6620
AIREP WIND VECTOR DIFF (M/S) UAL82 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.1431, expected range: 0.9421 7.4176
AIREP WIND VECTOR DIFF (M/S) UAL953 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.5034, expected range: 0.0000 20.2964
AIREP WIND VECTOR DIFF (M/S) AAL718 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.8164, expected range: 0.0000 8.5727
AIREP WIND VECTOR DIFF (M/S) THY4YT PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.5043, expected range: 0.0000 25.3220
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01079 PRESSURE LAYER 600-900 : out of range
Severe: avg_fgdepar=20.7175, expected range: 0.1830 5.5134
Severe: rms_fgdepar=20.7175, expected range: 0.6480 6.0237
Severe: avg_pge=0.8946, expected range: -0.2191 0.4086
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96015 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.5514, expected range: 0.0000 6.9454
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41998 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8120, expected range: -0.0426 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9009, expected range: 0.4857 0.7500
All AUTOMATIC LAND SYNOP RH2M (%) WMO BLOCK 17 : all data missing
Severe: obs_number=0, expected range: 47.61 251.41
All AUTOMATIC LAND SYNOP RH2M (%) WMO BLOCK 18 : all data missing
Severe: obs_number=0, expected range: 29.20 166.83
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 80210 : out of range
Severe: rms_fgdepar=320.9220, expected range: 0.0000 288.9701
Severe: avg_pge=0.8024, expected range: -0.1005 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65660 : out of range
Severe: rms_fgdepar=648.7712, expected range: 0.0000 194.9016
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08505 : out of range
Severe: rms_fgdepar=330.4814, expected range: 0.1774 38.1666
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71308 : out of range
Severe: rms_fgdepar=373.3047, expected range: 2.6681 197.9663
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71408 : out of range
Severe: rms_fgdepar=311.4051, expected range: 59.6618 241.8463
Severe: avg_pge=0.8345, expected range: -0.1625 0.7500
BUFR LAND SYNOP RH2M (%) _17040E1 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9727, expected range: -1.4685 0.7500
BUFR LAND SYNOP RH2M (%) 40439 : out of range
Severe: avg_pge=0.9239, expected range: -0.4782 0.5869
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRD7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=693.0464, expected range: 279.3571 1063.8704
Severely_persistent: rms_fgdepar=693.8273, expected range: 274.6577 1074.2281
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4048 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=894.5803, expected range: 367.3152 1435.5000
Severely_persistent: rms_fgdepar=899.7014, expected range: 381.6223 1427.3675
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=956.6182, expected range: -1646.5580 2183.8764
Severely_persistent: rms_fgdepar=956.6182, expected range: 0.0000 1785.2281
Severely_persistent: avg_pge=0.8877, expected range: -0.9027 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQNL : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-558.5551, expected range: -1024.0281 1184.1380
Severely_persistent: rms_fgdepar=558.5551, expected range: 0.0000 830.6596
Severely_persistent: avg_pge=0.8508, expected range: -1.1322 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7DQ4 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8368, expected range: -0.8813 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7A5552 : out of range
Severe: avg_fgdepar=818.7940, expected range: 725.4210 1109.3286
Severe: rms_fgdepar=824.5966, expected range: 721.6076 1121.6717
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8404 : out of range
Severe: avg_fgdepar=-552.6441, expected range: -1052.1735 1557.5175
Severe: rms_fgdepar=552.6441, expected range: 0.0000 955.9861
Severe: avg_pge=0.8427, expected range: -0.9856 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6BQ4 : out of range
Severe: avg_fgdepar=500.0662, expected range: -516.6287 618.2559
Severe: rms_fgdepar=521.9983, expected range: 0.0000 375.6800
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6FZ7 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=321.5075, expected range: 0.0000 158.5300
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQDB : out of range
Severe: avg_fgdepar=639.6335, expected range: -576.6694 976.3664
Severe: rms_fgdepar=639.6335, expected range: 0.0000 971.4524
Severe: avg_pge=0.8355, expected range: -1.2698 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7KDP : out of range
Severe: avg_fgdepar=643.1048, expected range: -723.4818 1115.0572
Severe: rms_fgdepar=643.1048, expected range: 0.0000 1289.2116
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=887.9959, expected range: -585.9883 1414.2540
Severe: rms_fgdepar=887.9959, expected range: 0.0000 1414.2540
Severe: avg_pge=0.8858, expected range: 0.0894 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) D5AD7 : out of range
Severe: rms_fgdepar=19.5127, expected range: 0.0000 10.9658
Severe: avg_pge=0.9073, expected range: -0.8286 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) H3VS : out of range
Severe: rms_fgdepar=17.3697, expected range: 0.0000 8.2888
Severe: avg_pge=0.9006, expected range: -1.1755 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501670 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8589, expected range: -0.8155 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301611 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8611, expected range: -0.9587 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401581 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8331, expected range: -0.8868 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101849 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=511.1442, expected range: -824.7189 1141.7296
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802600 : out of range
Severe: rms_fgdepar=385.3464, expected range: 0.0000 119.2442
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401572 : out of range
Severe: rms_fgdepar=349.2821, expected range: 0.0000 134.3374
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203516 : out of range
Severe: rms_fgdepar=327.8146, expected range: 0.0000 92.0003
metar
METAR SURFACE PRESSURE (PA) PAEL : out of range
Severe: rms_fgdepar=326.3672, expected range: 0.0000 166.4175
METAR SURFACE PRESSURE (PA) LPHR : out of range
Severe: rms_fgdepar=383.7679, expected range: 16.3343 65.1209
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=-773.3832, expected range: -794.2132 -763.1570
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=773.5827, expected range: 763.1567 794.2383
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.4545, expected range: 41.2009 61.2991
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.7197, expected range: 42.7994 60.5724
t2m
METAR 2M TEMPERATURE (K) KTLH : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.3953, expected range: -25.9560 8.6957
Severely_persistent: rms_fgdepar=16.3953, expected range: 0.0000 21.7651
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.8333, expected range: -22.2208 -7.8468
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.8434, expected range: 7.8822 22.2894
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.4602, expected range: -22.3539 -6.1775
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.4622, expected range: 6.2300 22.4286
BUFR LAND SYNOP 2M TEMPERATURE (K) _1701F9F : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.2503, expected range: 0.0000 20.3465
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
Severe: avg_lsm=0.6124, expected range: 0.7085 0.7277
MANUAL LAND SYNOP 2M TEMPERATURE (K) 80091 : out of range
Severe: avg_fgdepar=12.5805, expected range: 0.1516 4.0597
Severe: rms_fgdepar=12.5805, expected range: 0.7461 4.4840
LAND TEMP 2M TEMPERATURE (K) 17196 : out of range
Severe: rms_fgdepar=10.4706, expected range: 0.0000 5.7284
BUFR LAND SYNOP 2M TEMPERATURE (K) 80091 : out of range
Severe: avg_fgdepar=12.7086, expected range: -1.3243 3.1926
Severe: rms_fgdepar=12.7086, expected range: 0.0000 2.9420
rh2m
AUTOMATIC LAND SYNOP RH2M (%) : out of range
Severe: avg_lsm=0.6038, expected range: 0.7101 0.7428
BUFR LAND SYNOP RH2M (%) 81870 : out of range
Severe: rms_fgdepar=39.0113, expected range: 0.0000 20.7407
BUFR LAND SYNOP RH2M (%) 86694 : out of range
Severe: rms_fgdepar=33.6469, expected range: 0.0000 19.1997