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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-06 12:00

amsua
AQUA/AMSUA RADIANCES CHANNEL 14 : out of range
Considerable: avg_biascorr=0.1757, expected range: 0.0497 0.1415
iasi
METOP-A/IASI RADIANCES CHANNEL 95 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.4669, expected range: 0.2672 0.3956
METOP-A/IASI RADIANCES CHANNEL 5988 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.5120, expected range: 0.2009 0.3865
METOP-A/IASI RADIANCES CHANNEL 5992 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.5293, expected range: 0.1816 0.4060
METOP-A/IASI RADIANCES CHANNEL 5994 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.5731, expected range: 0.1878 0.4274
METOP-A/IASI RADIANCES CHANNEL 6980 : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.5066, expected range: -0.4206 -0.2703
METOP-A/IASI RADIANCES CHANNEL 6982 : out of range
Severe: avg_biascorr=-0.7079, expected range: -0.6307 -0.4905
METOP-C/IASI RADIANCES CHANNEL 457 : out of range
Slight: stdev_fgdepar=0.2855, expected range: 0.2445 0.2796
airs
AQUA/AIRS RADIANCES CHANNEL 375 : out of range
Severe: stdev_fgdepar=0.4686, expected range: 0.3547 0.3967
Slight: obs_number=1292.0000, expected range: 2346.7339 7043.3267
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9421, expected range: -1.2631 0.7500
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=191.0000, expected range: 69.0313 114.6157
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=66.0000, expected range: 191.5907 204.0760
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 389.9263
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
2 times in the last 10 days for at least one item
Considerable: rms_fgdepar=5.1417, expected range: 0.5449 3.2906
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=38.9035, expected range: 0.0000 15.0689
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA (2 pressure layers affecte : out of range
Severe: avg_pge=0.9273, expected range: -0.7825 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) DIJX1DJA PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=47.0168, expected range: 0.0000 8.7397
Severe: avg_pge=0.9313, expected range: -1.1180 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 48810 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8416, expected range: -0.0341 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42744 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8922, expected range: -1.2951 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42174 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8561, expected range: -1.4377 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=996.9868, expected range: 0.0000 193.5470
Severely_persistent: avg_pge=0.9390, expected range: -0.7645 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8604, expected range: 0.6520 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68479 : out of range
Severe: rms_fgdepar=342.3570, expected range: 0.0000 200.0867
Severe: avg_pge=0.8826, expected range: -0.9859 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68343 : out of range
Severe: rms_fgdepar=20.2973, expected range: 0.0000 8.6609
AUTOMATIC LAND SYNOP RH2M (%) 68004 : out of range
Severe: rms_fgdepar=15.6063, expected range: 0.0000 5.3103
AUTOMATIC LAND SYNOP RH2M (%) 68345 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.4129, expected range: 0.0000 6.3580
AUTOMATIC LAND SYNOP RH2M (%) 68447 : out of range
Severe: rms_fgdepar=35.9233, expected range: 0.0000 6.1882
AUTOMATIC LAND SYNOP RH2M (%) 68558 : out of range
Severe: rms_fgdepar=24.4272, expected range: 0.0000 10.5778
AUTOMATIC LAND SYNOP RH2M (%) 68449 : out of range
Severe: rms_fgdepar=18.6863, expected range: 0.0000 7.7370
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60220 : out of range
Severe: rms_fgdepar=352.2652, expected range: 0.0000 216.1101
Severe: avg_pge=0.8218, expected range: -0.7786 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82976 : out of range
Severe: rms_fgdepar=785.3850, expected range: 0.0000 493.2664
Severe: avg_pge=0.9103, expected range: -1.0815 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43277 : out of range
Severe: rms_fgdepar=426.3901, expected range: 0.0000 240.2049
Severe: avg_pge=0.8743, expected range: -0.9166 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42587 : out of range
Severe: rms_fgdepar=551.4081, expected range: 0.0000 179.8715
MANUAL LAND SYNOP RH2M (%) 68442 : out of range
Severe: rms_fgdepar=16.1186, expected range: 0.0000 7.6849
MANUAL LAND SYNOP RH2M (%) 42165 : out of range
Severe: avg_pge=0.9106, expected range: -0.4756 0.5551
MANUAL LAND SYNOP RH2M (%) 41697 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -1.3580 0.7500
MANUAL LAND SYNOP RH2M (%) 68018 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=28.3522, expected range: 0.0000 12.0915
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08352 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=749.3595, expected range: 0.0000 273.0810
Severe: avg_pge=0.9442, expected range: -1.1000 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48033 : out of range
Severe: avg_pge=0.8214, expected range: -1.1969 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61695 : out of range
Severe: rms_fgdepar=522.4482, expected range: 0.0000 187.0316
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71506 : out of range
Severe: avg_pge=0.8050, expected range: -0.9078 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24967 : out of range
Severe: rms_fgdepar=352.6969, expected range: 0.0000 245.8482
Severe: avg_pge=0.8183, expected range: -0.6236 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30028 : out of range
Severe: rms_fgdepar=672.4873, expected range: 0.0000 146.2079
Severe: avg_pge=0.8060, expected range: -1.1830 0.7500
BUFR LAND SYNOP RH2M (%) 26231 : out of range
Severe: rms_fgdepar=25.8118, expected range: 0.0000 11.9786
BUFR LAND SYNOP RH2M (%) 72274 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.9639, expected range: 0.0000 7.7267
BUFR LAND SYNOP RH2M (%) 72365 : out of range
Severe: rms_fgdepar=39.3746, expected range: 0.0000 19.6178
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=268.0000, expected range: 306.5879 380.4121
ship
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8636, expected range: 0.3472 0.7500
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8060, expected range: -1.1732 0.7500
SHIP SURFACE PRESSURE (PA) PBGJ : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9093, expected range: -0.9480 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTDF : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8695, expected range: -1.5734 0.7500
SHIP SURFACE PRESSURE (PA) DGQD2 : out of range
Severe: rms_fgdepar=571.1176, expected range: 0.0000 198.9886
SHIP SURFACE PRESSURE (PA) V7HH2 : out of range
Severe: avg_pge=0.8121, expected range: -0.6570 0.7500
SHIP SURFACE PRESSURE (PA) 9VKQ2 : out of range
Severe: avg_pge=0.8685, expected range: -0.9422 0.7500
SHIP SURFACE PRESSURE (PA) C6BQ4 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8057, expected range: -0.9649 0.7500
SHIP SURFACE PRESSURE (PA) VRNI7 : out of range
Severe: avg_pge=0.8844, expected range: -0.5885 0.7500
SHIP SURFACE PRESSURE (PA) BKIC : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8065, expected range: -1.0262 0.7500
SHIP SURFACE PRESSURE (PA) UBAU : out of range
Severe: avg_pge=0.8258, expected range: -0.7601 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401502 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8812, expected range: -0.3958 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801652 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9229, expected range: -0.6328 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301615 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=454.4561, expected range: -249.2490 361.2812
Severely_persistent: avg_pge=0.8381, expected range: -1.1136 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301607 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8468, expected range: 0.2901 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401570 : out of range
Severe: rms_fgdepar=310.6067, expected range: 0.0000 142.3361
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101634 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8655, expected range: -0.2921 0.7500
metar
METAR SURFACE PRESSURE (PA) PALP : out of range
Severe: rms_fgdepar=469.1879, expected range: 0.0000 128.5408
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.7490, expected range: 0.0000 3.2453
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8211, expected range: 0.5850 1.0511
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8630, expected range: 0.1942 1.0976
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8769, expected range: 0.6545 0.9849
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8379, expected range: 0.6684 0.9856
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8169, expected range: 0.5989 1.0414
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02811 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.9550, expected range: 0.0000 3.7904
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71251 : out of range
Severe: rms_fgdepar=8.9929, expected range: 0.0000 5.1193
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01161 : out of range
Severe: rms_fgdepar=7.9208, expected range: 0.5999 4.6642
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02881 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.2482, expected range: 0.0000 3.7802
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71163 : out of range
Severe: rms_fgdepar=9.9503, expected range: 0.0000 3.7281
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02804 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.1332, expected range: 0.0000 3.5408
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02714 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0324, expected range: 0.0000 3.4141
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68754 : out of range
Severe: rms_fgdepar=10.2379, expected range: 0.0000 4.5462
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71105 : out of range
Severe: rms_fgdepar=9.4785, expected range: 0.0000 5.1207
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71225 : out of range
Severe: rms_fgdepar=10.9302, expected range: 0.0000 4.6748
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02135 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.3262, expected range: 0.0000 4.1855
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71535 : out of range
Severe: rms_fgdepar=9.8834, expected range: 0.0000 5.1481
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68345 : out of range
Severe: rms_fgdepar=7.2281, expected range: 0.0000 3.1878
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71346 : out of range
Severe: rms_fgdepar=9.6192, expected range: 0.0000 4.9523
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71546 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.8247, expected range: 0.0000 3.5006
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71066 : out of range
Severe: rms_fgdepar=9.2073, expected range: 0.0000 4.5016
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02866 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.3507, expected range: 0.0000 4.2362
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71457 : out of range
Severe: rms_fgdepar=9.9779, expected range: 0.0000 5.5611
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68558 : out of range
Severe: rms_fgdepar=7.4960, expected range: 0.0000 3.7422
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71409 : out of range
Severe: rms_fgdepar=10.8236, expected range: 0.0000 5.7247
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71519 : out of range
Severe: rms_fgdepar=8.4957, expected range: 0.0000 4.6464
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02869 : out of range
Severe: rms_fgdepar=8.6469, expected range: 0.0000 3.2071
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68479 : out of range
Severe: rms_fgdepar=7.8505, expected range: 0.0000 3.7153
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02889 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.7090, expected range: 0.0000 3.3764
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02799 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4465, expected range: 0.0000 3.0238
MANUAL LAND SYNOP 2M TEMPERATURE (K) 82460 : out of range
Severe: rms_fgdepar=7.1639, expected range: 0.0000 3.8826
MANUAL LAND SYNOP 2M TEMPERATURE (K) 70133 : out of range
Severe: rms_fgdepar=7.1263, expected range: 0.0000 3.7531
MANUAL LAND SYNOP 2M TEMPERATURE (K) 71946 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.7935, expected range: 0.0000 4.3228
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22408 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.2721, expected range: 0.0000 4.0616
METAR 2M TEMPERATURE (K) ENSH : out of range
Severe: rms_fgdepar=8.6275, expected range: 0.6934 4.4371
METAR 2M TEMPERATURE (K) CYOJ : out of range
Severe: rms_fgdepar=9.5797, expected range: 0.0000 4.5306
METAR 2M TEMPERATURE (K) CYZW : out of range
Severe: rms_fgdepar=8.4042, expected range: 0.0000 4.2195
LAND TEMP 2M TEMPERATURE (K) 72582 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8464, expected range: -0.0330 1.1293
LAND TEMP 2M TEMPERATURE (K) 37055 : out of range
Severe: rms_fgdepar=8.7123, expected range: 0.0000 4.8978
Severe: avg_est_pge=0.8076, expected range: -0.4836 0.9246
BUFR LAND SYNOP 2M TEMPERATURE (K) 01161 : out of range
Severe: rms_fgdepar=7.8948, expected range: 0.5880 4.5811
BUFR LAND SYNOP 2M TEMPERATURE (K) 04983 : out of range
Severe: rms_fgdepar=12.3212, expected range: 0.0000 5.7701
BUFR LAND SYNOP 2M TEMPERATURE (K) 71365 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.8851, expected range: 0.0000 4.3573
BUFR LAND SYNOP 2M TEMPERATURE (K) 71066 : out of range
Severe: rms_fgdepar=9.2467, expected range: 0.0000 4.5243
BUFR LAND SYNOP 2M TEMPERATURE (K) 02866 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.3152, expected range: 0.0000 4.3585
BUFR LAND SYNOP 2M TEMPERATURE (K) 04069 : out of range
Severe: rms_fgdepar=10.2685, expected range: 0.0000 5.1161
BUFR LAND SYNOP 2M TEMPERATURE (K) 02889 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.5711, expected range: 0.0000 3.1672
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 71506 : out of range
Severe: rms_fgdepar=29.2720, expected range: 0.0000 16.5996
LAND TEMP RH2M (%) 74006 : out of range
Severe: rms_fgdepar=22.2048, expected range: 0.0000 10.3624