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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-10 00:00

amsua
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.0261, expected range: -0.0073 0.0291
cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14976.60 15864.11
NOAA20 CRIS RADIANCES CHANNEL 60 : out of range
Considerable: obs_number=1693.0000, expected range: 2103.4307 2393.6943
NOAA20 CRIS RADIANCES CHANNEL 61 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1490.0000, expected range: 1973.9550 2440.4200
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11499.70 13940.96
gpsro
COSMIC2-E5 GPSRO SETTING (23 impact heights affected) : out of range
Slight: obs_number=2357.0000, expected range: 2760.7435 4258.3815
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 89.64 1120.71
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 136.73 1436.89
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=2026.0000, expected range: 240.5457 1310.2043
Radiosondes
All LAND TEMP ALL LAYERS WMO BLOCK 98 : all data missing
Severely_persistent: obs_number=0, expected range: 181.03 334.97
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 67.09 460.70
LAND TEMP TEMPERATURE (K) 31538 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=7.8572, expected range: 0.0000 3.1153
LAND TEMP WIND VECTOR DIFF (M/S) 32540 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.0042, expected range: 0.0000 5.9082
Severe: avg_pge=0.8053, expected range: -0.3286 0.4295
LAND TEMP Q (G/KG) 96805 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.5705, expected range: 0.0000 4.0578
Severe: avg_pge=1.0000, expected range: -0.0913 0.1158
LAND TEMP Q (G/KG) 42101 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.0385, expected range: 0.0085 1.6659
LAND TEMP Q (G/KG) 24507 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.9699, expected range: 0.0000 1.6020
HIGH RESO LAND TEMP Q (G/KG) 58027 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.1168, expected range: 0.2716 1.0754
HIGH RESO LAND TEMP Q (G/KG) 16113 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.4294, expected range: 0.5019 1.4408
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 0.00 343.13
amdar
AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 366.7279
WIGOS AMDAR WIND VECTOR DIFF (M/S) P1FUNVZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.5393, expected range: 0.0000 8.3394
ADS-C WIND VECTOR DIFF (M/S) 1HFRTXBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=67.3198, expected range: -0.0725 6.4161
Severe: rms_fgdepar=67.3198, expected range: 0.0000 8.2893
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=20.1776, expected range: -2.4147 15.6778
Severe: rms_fgdepar=20.2168, expected range: 0.0000 15.9437
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8863, expected range: -0.2536 0.7500
All BUFR LAND SYNOP WMO BLOCK 98 : all data missing
Severely_persistent: obs_number=0, expected range: 80.69 87.59
MANUAL LAND SYNOP RH2M (%) 67541 : out of range
Severe: avg_pge=0.8842, expected range: -0.2074 0.2590
MANUAL LAND SYNOP RH2M (%) 42803 : out of range
Severe: rms_fgdepar=36.9782, expected range: 0.0000 24.7558
Severe: avg_pge=0.9959, expected range: -0.0147 0.0259
MANUAL LAND SYNOP RH2M (%) 60457 : out of range
Severe: avg_pge=0.8566, expected range: -0.0979 0.1215
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60461 : out of range
Severe: avg_pge=0.8011, expected range: -0.5133 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42661 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=431.2628, expected range: 0.0000 160.8367
Severe: avg_pge=0.8410, expected range: -0.2265 0.2589
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42467 : out of range
Severe: rms_fgdepar=393.9918, expected range: 0.0000 361.0501
Severe: avg_pge=0.8691, expected range: -1.1509 0.7500
BUFR LAND SYNOP RH2M (%) 72334 : out of range
Severe: rms_fgdepar=30.7849, expected range: 0.0000 14.4825
BUFR LAND SYNOP RH2M (%) 72266 : out of range
Severe: rms_fgdepar=33.0636, expected range: 0.0000 17.0373
BUFR LAND SYNOP RH2M (%) 72688 : out of range
Severe: avg_fgdepar=50.8695, expected range: -7.5600 9.4162
Severe: rms_fgdepar=50.8695, expected range: 0.0000 6.2281
Severe: avg_pge=0.9443, expected range: 0.0011 0.0042
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42973 : out of range
Severe: rms_fgdepar=333.8784, expected range: 0.0000 126.3516
BUFR LAND SYNOP SURFACE PRESSURE (PA) 34254 : out of range
Severe: rms_fgdepar=446.7424, expected range: 0.0000 145.4252
Severe: avg_pge=0.8619, expected range: -1.1609 0.7500
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7A4867 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8466, expected range: 0.4401 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8294, expected range: -0.9422 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
41 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=847.6613, expected range: 393.2464 1334.1987
Severely_persistent: rms_fgdepar=847.6613, expected range: 410.0472 1321.0596
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FMI2 : out of range
Severe: rms_fgdepar=15.7581, expected range: 0.0000 6.9738
Severe: avg_pge=0.9018, expected range: -0.7761 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LAVN4 : out of range
Severe: rms_fgdepar=16.9117, expected range: 0.0000 9.5829
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLA2 : out of range
Severe: rms_fgdepar=537.0247, expected range: 0.0000 407.2313
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8FG3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-530.8351, expected range: -696.2083 -426.2609
Severe: rms_fgdepar=534.1390, expected range: 426.8096 695.9960
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3735 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=816.7494, expected range: 201.2801 1908.9585
Severe: rms_fgdepar=816.7494, expected range: 198.8329 1912.2949
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ5 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=1216.9886, expected range: 841.9858 1484.7483
Severe: rms_fgdepar=1216.9886, expected range: 844.0266 1483.9557
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDD2876 : out of range
Severe: rms_fgdepar=570.1598, expected range: 0.0000 126.6783
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WPTC : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=363.6190, expected range: 0.0000 84.7009
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9137, expected range: 0.1389 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9159, expected range: -0.1370 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501741 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-678.8643, expected range: -1929.2616 1855.9140
Severely_persistent: rms_fgdepar=679.9793, expected range: 0.0000 1178.4123
Severely_persistent: avg_pge=0.9223, expected range: 0.1489 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=158.0000, expected range: 326.9627 334.4817
Severe: obs_number=194.0000, expected range: 320.9547 330.4137
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=50.2842, expected range: 8.4474 92.6485
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=-772.8368, expected range: -773.5165 -772.0564
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=772.8368, expected range: 772.0566 773.5165
t2m
METAR 2M TEMPERATURE (K) UGMS : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=12.2652, expected range: 8.3454 15.6578
Severely_persistent: rms_fgdepar=12.4673, expected range: 8.6333 15.6070
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=19.6366, expected range: -4.2745 8.0058
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.6384, expected range: 0.0000 8.3060
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8066, expected range: -0.1531 0.4264
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 55228 : out of range
Severe: avg_fgdepar=12.0019, expected range: -6.6233 12.7639
Severe: rms_fgdepar=12.0019, expected range: 0.0000 11.9168
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42803 : out of range
Severe: rms_fgdepar=11.3245, expected range: 0.0000 5.4565
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72688 : out of range
Severe: rms_fgdepar=10.7781, expected range: 0.0000 2.8154
METAR 2M TEMPERATURE (K) FYOA : out of range
Severe: avg_fgdepar=12.8552, expected range: 0.5979 10.3948
Severe: rms_fgdepar=12.8552, expected range: 0.9642 10.4696
BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
Severe: avg_fgdepar=-13.2444, expected range: -3.6976 2.9359
Severe: rms_fgdepar=13.3911, expected range: 0.0000 3.8062
BUFR LAND SYNOP 2M TEMPERATURE (K) 27627 : out of range
Severe: rms_fgdepar=12.7738, expected range: 0.0400 2.5310
rh2m
MANUAL LAND SYNOP RH2M (%) 70326 : out of range
Severe: rms_fgdepar=31.5153, expected range: 0.0000 16.0480
MANUAL LAND SYNOP RH2M (%) 72266 : out of range
Severe: rms_fgdepar=33.6517, expected range: 0.0000 9.7736
All MANUAL LAND SYNOP WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 101.74 168.12
METAR RH2M (%) KABI : out of range
Severe: rms_fgdepar=31.3877, expected range: 0.0000 13.6600
METAR RH2M (%) PAKN : out of range
Severe: rms_fgdepar=32.3735, expected range: 0.0000 18.1391
METAR RH2M (%) KGKY : out of range
Severe: rms_fgdepar=33.3052, expected range: 0.0000 17.6333
LAND TEMP RH2M (%) 72249 : out of range
Severe: rms_fgdepar=35.9898, expected range: 0.0000 16.2374