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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-07-11 00:00

iasi
METOP-C IASI RADIANCES (12 channels affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6166, expected range: -0.5259 -0.4598
METOP-A IASI RADIANCES (16 channels affected) : out of range
3 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.4113, expected range: -0.3624 -0.2706
METOP-A IASI RADIANCES CHANNEL 178 : out of range
Considerable: stdev_fgdepar=0.3780, expected range: 0.3179 0.3572
cris
NOAA20 CRIS RADIANCES CHANNEL 86 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0081, expected range: 0.0110 0.0143
NOAA20 CRIS RADIANCES CHANNEL 661 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1671, expected range: -0.1895 -0.1882
airs
AQUA AIRS RADIANCES CHANNEL 1012 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1574, expected range: -0.1323 -0.1169
AQUA AIRS RADIANCES CHANNEL 52 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3472, expected range: -0.2560 -0.2116
AQUA AIRS RADIANCES CHANNEL 72 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2440, expected range: -0.1821 -0.1563
AQUA AIRS RADIANCES CHANNEL 672 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1322, expected range: -0.1034 -0.1032
Severely_persistent: avg_biascorr=-0.1352, expected range: -0.1060 -0.0941
AQUA AIRS RADIANCES CHANNEL 251 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.9153, expected range: -0.8285 -0.7621
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES (11 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=28061.0000, expected range: 50762.2902 61236.3348
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 12 : out of range
Severe: stdev_norm_fgdepar=0.6861, expected range: 0.7826 0.9088
gpsro
COSMIC2-E1 GPSRO SETTING HEIGHT 8-10 KM : out of range
Considerable: obs_number=793.0000, expected range: 488.1785 725.0715
COSMIC2-E4 GPSRO SETTING HEIGHT 42-44 KM : out of range
Slight: stdev_norm_fgdepar=0.7678, expected range: 0.5104 0.6876
mwri
FY-3D MWRI RADIANCES (6 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=6457.0000, expected range: 13789.9353 16055.6897
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) 51656 PRESSURE LAYER 900-1200 (HPA : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8805, expected range: -0.1914 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 30 : all data missing
Severely_persistent: obs_number=0, expected range: 10.78 217.29
HIGH RESO LAND TEMP Q (G/KG) 12982 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.8796, expected range: 0.0000 1.6049
HIGH RESO LAND TEMP Q (G/KG) 12843 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.1071, expected range: 0.0000 1.2630
HIGH RESO LAND TEMP Q (G/KG) 04339 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=4.0558, expected range: 0.0000 2.1139
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 48.23 176.27
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 96 : all data missing
Severe: obs_number=0, expected range: 15.65 257.62
All HIGH RESO LAND TEMP ALL LAYERS Indian Ocean Tropica : all data missing
Severe: obs_number=0, expected range: 15.65 257.62
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=188.0000, expected range: 263.4414 287.3086
Considerable: rms_fgdepar=1.4659, expected range: 0.5935 1.1645
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=178.0000, expected range: 224.4318 309.7905
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=571.0000, expected range: 706.2603 765.2397
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=459.0000, expected range: 349.1906 379.3094
amdar
AMDAR WIND VECTOR DIFF (M/S) 00040367 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=25.0447, expected range: 0.0000 27.5066
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0485 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.6845, expected range: 0.0000 6.7211
WIGOS AMDAR TEMPERATURE (K) BGXEISZA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.9490, expected range: 0.0000 1.7872
WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8613, expected range: -1.2669 0.7500
prof
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 217.01 951.76
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 217.01 951.76
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60417 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8161, expected range: 0.6300 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68821 : out of range
Severe: rms_fgdepar=43.9315, expected range: 0.0000 16.7970
AUTOMATIC LAND SYNOP RH2M (%) 41255 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-60.8092, expected range: -189.9324 149.1195
Severe: rms_fgdepar=60.8092, expected range: 0.0000 163.0993
Severe: avg_pge=1.0000, expected range: -2.3254 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89564 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8478, expected range: -1.0009 0.7500
MANUAL LAND SYNOP RH2M (%) 43321 : out of range
Severe: rms_fgdepar=35.3848, expected range: 0.0000 13.7625
MANUAL LAND SYNOP RH2M (%) 60531 : out of range
Severe: rms_fgdepar=44.0918, expected range: 0.0000 24.3868
MANUAL LAND SYNOP RH2M (%) 60492 : out of range
Severe: rms_fgdepar=44.8740, expected range: 0.0000 18.3795
MANUAL LAND SYNOP RH2M (%) 76113 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-60.6749, expected range: -26.1312 12.1031
Severe: rms_fgdepar=60.6749, expected range: 0.0000 29.5934
MANUAL LAND SYNOP RH2M (%) 43228 : out of range
Severe: rms_fgdepar=40.7741, expected range: 0.0000 26.7317
Severe: avg_pge=0.9376, expected range: 0.0007 0.0056
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42441 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8558, expected range: -1.5191 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42453 : out of range
Severe: avg_pge=0.8139, expected range: -0.7288 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42393 : out of range
Severe: avg_fgdepar=-522.9760, expected range: -295.8882 238.1447
Severe: rms_fgdepar=522.9760, expected range: 0.0000 175.5963
Severe: avg_pge=0.8894, expected range: -0.5100 0.5828
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86128 : out of range
Severe: avg_pge=0.8149, expected range: -1.0593 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 44229 : out of range
Severe: avg_fgdepar=1156.9603, expected range: -2228.6856 3867.2848
Severe: rms_fgdepar=1156.9603, expected range: 0.0000 3441.5576
Severe: avg_pge=0.9266, expected range: -1.6234 0.7500
BUFR LAND SYNOP RH2M (%) : out of range
Severe: obs_number=683.0000, expected range: 881.3604 920.6396
Considerable: obs_number=608.0000, expected range: 800.1394 859.3606
Considerable: obs_number=1775.0000, expected range: 2049.3825 2166.2425
BUFR LAND SYNOP RH2M (%) 60136 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9999, expected range: -0.0729 0.0900
BUFR LAND SYNOP SURFACE PRESSURE (PA) 98752 : out of range
Severe: rms_fgdepar=628.0372, expected range: 0.0000 170.0513
BUFR LAND SYNOP SURFACE PRESSURE (PA) 40375 : out of range
Severe: rms_fgdepar=544.8593, expected range: 8.0739 108.0163
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30439 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=708.1343, expected range: 0.0000 177.7176
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8PB2 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=544.5339, expected range: 156.7591 754.6516
Severely_persistent: rms_fgdepar=546.5435, expected range: 152.3929 762.2878
Severely_persistent: avg_pge=0.8011, expected range: -0.1790 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6FU4 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=788.4062, expected range: 519.2559 1115.4284
Severely_persistent: rms_fgdepar=793.7603, expected range: 519.2559 1115.4284
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6NQ : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=618.9118, expected range: 334.5611 1091.0902
Severely_persistent: rms_fgdepar=618.9118, expected range: 335.7722 1091.2741
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7PX2 : out of range
Severe: avg_fgdepar=25.6480, expected range: -5.6781 22.0296
Severe: rms_fgdepar=25.6480, expected range: 0.0000 22.0305
Severe: avg_pge=0.9352, expected range: 0.3797 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4612 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=1517.7762, expected range: -509.4621 948.6553
Severe: rms_fgdepar=1517.7762, expected range: 0.0000 848.4176
Severe: avg_pge=0.9354, expected range: -1.0366 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OUJK2 : out of range
Severe: avg_fgdepar=639.8511, expected range: -840.3832 826.5389
Severe: rms_fgdepar=639.8511, expected range: 0.0000 976.2505
Severe: avg_pge=0.8520, expected range: -0.8904 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7HG7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=959.3537, expected range: 394.3038 1094.4471
Severe: rms_fgdepar=959.3537, expected range: 394.3038 1094.4471
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FBD9 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=1003.8349, expected range: 736.4865 1284.9736
Severe: rms_fgdepar=1004.1111, expected range: 794.5703 1240.2229
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQDD : out of range
Severe: avg_fgdepar=625.5790, expected range: -295.2996 260.6212
Severe: rms_fgdepar=625.5790, expected range: 0.0000 261.7901
Severe: avg_pge=0.8226, expected range: -1.1753 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 4400062 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-531.8933, expected range: 24.8571 265.3502
Severe: rms_fgdepar=533.3139, expected range: 26.4138 280.4157
Severe: avg_pge=0.9059, expected range: -0.2343 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401763 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=524.7325, expected range: -618.9769 587.8131
Severe: rms_fgdepar=555.0053, expected range: 0.0000 695.4085
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=445.0000, expected range: 369.1410 418.6237
metar
METAR SURFACE PRESSURE (PA) SBMA : out of range
Severe: rms_fgdepar=391.3010, expected range: 0.0000 108.2096
METAR SURFACE PRESSURE (PA) GMMC : out of range
Severe: rms_fgdepar=367.8392, expected range: 0.0000 100.4550
METAR SURFACE PRESSURE (PA) LWSK : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=433.7707, expected range: 0.0000 147.9788
METAR SURFACE PRESSURE (PA) DRRM : out of range
Severe: avg_fgdepar=-531.2329, expected range: -264.7072 308.1399
Severe: rms_fgdepar=713.0772, expected range: 11.1624 155.9000
AUTOMATIC METAR SURFACE PRESSURE (PA) KDMA : out of range
Severe: rms_fgdepar=324.4905, expected range: 0.0000 174.5572
snow
AUTOMATIC LAND SYNOP SNOW (CM) 11316 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.4720, expected range: 47.5880 128.5766
Severely_persistent: rms_fgdepar=54.4720, expected range: 47.5880 128.5766
BUFR LAND SYNOP SNOW (CM) 11316 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.4705, expected range: 47.5758 128.5793
Severely_persistent: rms_fgdepar=54.4705, expected range: 47.5758 128.5793
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1545.0000, expected range: 1838.7926 1894.0309
Considerable: obs_number=1189.0000, expected range: 1311.5997 1447.2753
METAR 2M TEMPERATURE (K) KQD3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.9667, expected range: -20.5661 21.2884
Severe: rms_fgdepar=15.9667, expected range: 0.0000 19.3174
METAR 2M TEMPERATURE (K) EGPC : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=12.4501, expected range: -3.3924 3.6302
Severe: rms_fgdepar=12.4501, expected range: 0.0000 3.1392
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Severe: obs_number=1825.0000, expected range: 2131.9633 2190.7867
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 68416 : out of range
Severe: rms_fgdepar=31.2491, expected range: 0.0000 12.0527
AUTOMATIC LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1488.0000, expected range: 1768.6151 1853.5026
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=87.0000, expected range: 251.4072 388.9678