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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-16 12:00

amsua
METOP-A/AMSUA RADIANCES CHANNEL 3 : out of range
Considerable: obs_number=2553.0000, expected range: 3242.8136 5343.2773
iasi
METOP-A/IASI RADIANCES CHANNEL 325 : out of range
Considerable: stdev_fgdepar=0.2691, expected range: 0.2248 0.2581
METOP-A/IASI RADIANCES CHANNEL 410 : out of range
Considerable: stdev_fgdepar=0.2876, expected range: 0.2272 0.2696
METOP-A/IASI RADIANCES CHANNEL 5401 : out of range
Considerable: stdev_fgdepar=0.6704, expected range: 0.3960 0.6135
METOP-A/IASI RADIANCES CHANNEL 5403 : out of range
Considerable: stdev_fgdepar=0.6016, expected range: 0.3469 0.5461
METOP-A/IASI RADIANCES CHANNEL 2993 : out of range
Slight: avg_fgdepar=0.0849, expected range: -0.0917 0.0659
cris
NPP/CRIS RADIANCES (118 channels affected) : out of range
4 times in the last 10 days for at least one item
Severe: avg_biascorr=0.2604, expected range: 0.1658 0.2148
NPP/CRIS RADIANCES (143 channels affected) : out of range
Severe: obs_number=9844.0000, expected range: 4617.1763 6275.4324
NPP/CRIS RADIANCES (25 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: stdev_fgdepar=3.3111, expected range: 0.1915 0.2784
NPP/CRIS RADIANCES (18 channels affected) : out of range
Severe: avg_fgdepar=0.3321, expected range: -0.2326 0.2271
Geostationary CSR
GOES-15/IMAGER RADIANCES CHANNEL 2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=122194.0000, expected range: 20263.0354 33372.9646
GOES-15/IMAGER RADIANCES CHANNEL 3 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=33694.0000, expected range: 3782.8536 15279.4622
Radiosondes
LAND TEMP TEMPERATURE (K) 20046 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.7423, expected range: 0.2270 1.8844
LAND TEMP TEMPERATURE (K) 26477 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.3945, expected range: 0.0000 3.2386
LAND TEMP WIND VECTOR DIFF (M/S) 24641 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.6715, expected range: 0.0000 7.3961
LAND TEMP WIND VECTOR DIFF (M/S) 34247 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.9993, expected range: 0.0000 7.4078
Severe: avg_pge=0.9125, expected range: -0.6195 0.7500
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=96.0000, expected range: 166.6675 211.1103
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=137.0000, expected range: 185.1169 334.6609
amdar
AMDAR WIND VECTOR DIFF (M/S) TAP029 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8035, expected range: -0.8596 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) LDJHLDRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.9975, expected range: 0.0000 8.0445
WIGOS AMDAR WIND VECTOR DIFF (M/S) 5CCUNVRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.4520, expected range: 0.0000 8.6648
WIGOS AMDAR WIND VECTOR DIFF (M/S) N2RWUUBA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=21.5070, expected range: 0.0000 6.0732
airep
AIREP WIND VECTOR DIFF (M/S) AAL693 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.9498, expected range: 0.0000 8.2194
synop
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9010, expected range: -1.0871 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 37308 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8704, expected range: 0.3068 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89059 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=396.2111, expected range: 0.0000 225.2779
AUTOMATIC LAND SYNOP RH2M (%) 35793 : out of range
Severe: rms_fgdepar=16.4229, expected range: 0.0000 8.4746
AUTOMATIC LAND SYNOP RH2M (%) 35167 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9839, expected range: -1.4209 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86260 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8203, expected range: -0.8946 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83722 : out of range
Severe: rms_fgdepar=629.0547, expected range: 0.0000 131.9816
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42174 : out of range
Severe: rms_fgdepar=525.4943, expected range: 0.0000 184.9973
Severe: avg_pge=0.8831, expected range: -0.9247 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87688 : out of range
Severe: rms_fgdepar=583.6813, expected range: 0.0000 344.0176
Severe: avg_pge=0.8671, expected range: -0.6965 0.7500
MANUAL LAND SYNOP RH2M (%) 81200 : out of range
Severe: avg_pge=0.8133, expected range: -0.3009 0.3471
MANUAL LAND SYNOP RH2M (%) 41712 : out of range
Severe: avg_pge=0.9944, expected range: -0.0243 0.0354
MANUAL LAND SYNOP RH2M (%) 43422 : out of range
Severe: rms_fgdepar=27.4234, expected range: 0.0000 14.7666
MANUAL LAND SYNOP RH2M (%) 76253 : out of range
Severe: avg_pge=0.8187, expected range: -0.8652 0.7500
MANUAL LAND SYNOP RH2M (%) 61075 : out of range
Severe: rms_fgdepar=33.2399, expected range: 0.0000 17.8551
MANUAL LAND SYNOP RH2M (%) 35188 : out of range
Severe: rms_fgdepar=28.5083, expected range: 0.0000 14.6060
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81870 : out of range
Severe: rms_fgdepar=691.5221, expected range: 0.0000 94.0774
Severe: avg_pge=0.9416, expected range: -0.1391 0.7500
BUFR LAND SYNOP RH2M (%) 72214 : out of range
Severe: rms_fgdepar=30.7680, expected range: 0.0000 14.9024
BUFR LAND SYNOP RH2M (%) 81737 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9994, expected range: -0.6500 0.7500
BUFR LAND SYNOP RH2M (%) 71308 : out of range
Severe: rms_fgdepar=18.9898, expected range: 0.0000 10.5538
BUFR LAND SYNOP RH2M (%) 71018 : out of range
Severe: rms_fgdepar=29.5818, expected range: 0.0000 16.6315
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=2511.0000, expected range: 2616.9116 3090.4217
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 62140 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=20.8394, expected range: 0.0000 14.9802
Severely_persistent: avg_pge=0.9115, expected range: -1.1898 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) ATVK : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=839.4800, expected range: -255.9605 383.3845
Severely_persistent: avg_pge=0.9317, expected range: -1.3341 0.7500
SHIP WIND VECTOR DIFF (M/S) VRBR8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8482, expected range: -1.2815 0.7500
SHIP SURFACE PRESSURE (PA) BQHZ : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9128, expected range: -1.0958 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9183, expected range: 0.0874 0.7500
SHIP WIND VECTOR DIFF (M/S) DJQA2 : out of range
Severe: rms_fgdepar=16.7245, expected range: 0.0000 7.0403
SHIP WIND VECTOR DIFF (M/S) VRVN8 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.2876, expected range: 0.0000 14.9118
Severe: avg_pge=0.8936, expected range: 0.0552 0.7500
SHIP WIND VECTOR DIFF (M/S) HPYE : out of range
Severe: rms_fgdepar=17.3235, expected range: 0.0000 8.5618
Severe: avg_pge=0.8973, expected range: -0.4148 0.7500
SHIP WIND VECTOR DIFF (M/S) WGAH : out of range
Severe: rms_fgdepar=16.8785, expected range: 0.0000 10.5469
Severe: avg_pge=0.9045, expected range: -0.6648 0.7500
SHIP SURFACE PRESSURE (PA) D5KR2 : out of range
Severe: rms_fgdepar=415.7472, expected range: 0.0000 318.5872
Severe: avg_pge=0.8407, expected range: -0.7990 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK96 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8197, expected range: -0.9389 0.7500
SHIP SURFACE PRESSURE (PA) VRPJ6 : out of range
Severe: avg_pge=0.8366, expected range: -0.1454 0.7500
SHIP SURFACE PRESSURE (PA) 9HJB9 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8487, expected range: -1.2034 0.7500
SHIP SURFACE PRESSURE (PA) 2ICI9 : out of range
Severe: rms_fgdepar=398.6532, expected range: 0.0000 166.5684
Severe: avg_pge=0.8286, expected range: -0.4625 0.5478
ABBREVIATED SHIP SURFACE PRESSURE (PA) V7PQ5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8285, expected range: -0.7170 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=72.0000, expected range: 111.6095 130.8022
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=5.9833, expected range: 0.0000 0.0000
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101630 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=395.2458, expected range: 0.0000 274.7123
Severe: avg_pge=0.8218, expected range: -0.8082 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401502 : out of range
Severe: rms_fgdepar=494.6042, expected range: 0.0000 403.5854
Severe: avg_pge=0.8567, expected range: -0.1420 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401582 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=674.3286, expected range: 0.0000 376.8954
Severe: avg_pge=0.9227, expected range: -0.9271 0.7500
metar
METAR SURFACE PRESSURE (PA) LIRT : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=511.3186, expected range: 0.0000 148.8605
METAR SURFACE PRESSURE (PA) FNGI : out of range
Severe: rms_fgdepar=317.2084, expected range: 0.0000 151.5594
METAR SURFACE PRESSURE (PA) KJLN : out of range
Severe: rms_fgdepar=343.1104, expected range: 0.0000 169.4022
METAR SURFACE PRESSURE (PA) UIUU : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=496.6717, expected range: 0.0000 159.5933
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8301, expected range: 0.7156 0.9115
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8959, expected range: 0.6998 0.9017
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8262, expected range: 0.6396 0.9782
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8632, expected range: -0.3255 1.4035
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8934, expected range: 0.7056 0.8990
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89573 : out of range
Severe: rms_fgdepar=8.6325, expected range: 0.0000 4.0613
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89625 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8228, expected range: -0.4412 1.2612
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89828 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8029, expected range: -0.2985 1.1523
MANUAL LAND SYNOP 2M TEMPERATURE (K) 60220 : out of range
Severe: rms_fgdepar=11.4443, expected range: 0.0000 6.2852
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72440 : out of range
Severe: rms_fgdepar=7.9151, expected range: 0.0000 3.8873
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62161 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.1823, expected range: 0.0658 2.6133
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89574 : out of range
Severe: rms_fgdepar=8.3836, expected range: 0.0000 3.8185
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8081, expected range: 0.0631 1.2511
MANUAL LAND SYNOP 2M TEMPERATURE (K) 13588 : out of range
Severe: rms_fgdepar=9.1857, expected range: 0.0000 4.5271
METAR 2M TEMPERATURE (K) EGNC : out of range
Severe: rms_fgdepar=7.5058, expected range: 0.0000 3.3369
METAR 2M TEMPERATURE (K) KSGF : out of range
Severe: rms_fgdepar=7.4523, expected range: 0.5528 3.9106
METAR 2M TEMPERATURE (K) MMGM : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.9563, expected range: 0.0000 3.8735
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8178, expected range: -0.4815 1.3548
BUFR LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8082, expected range: -0.0209 1.3003
BUFR LAND SYNOP 2M TEMPERATURE (K) 89828 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8028, expected range: -0.3129 1.1625
BUFR LAND SYNOP 2M TEMPERATURE (K) 13588 : out of range
Severe: rms_fgdepar=9.2151, expected range: 0.0000 4.5570
BUFR LAND SYNOP 2M TEMPERATURE (K) 61499 : out of range
Severe: rms_fgdepar=11.2085, expected range: 0.0000 5.0080
rh2m
AUTOMATIC LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1308.0000, expected range: 1414.4783 1694.7109